CN204251548U

CN204251548U - For the preparation of polymeric amide, especially nylon-6, the well heater in the device of 6 and heat exchanger system

Info

Publication number: CN204251548U
Application number: CN201420172812.XU
Authority: CN
Inventors: 查尔斯·R·克尔曼; 托马斯·A·米茨卡; 约翰·P·普安萨蒂
Original assignee: Invista Technologies SARL Switzerland
Current assignee: Invista North America LLC
Priority date: 2013-05-01
Filing date: 2014-04-10
Publication date: 2015-04-08
Anticipated expiration: 2024-04-10
Also published as: TWM507303U

Abstract

The utility model relates to the mthods, systems and devices that preparation has the polymeric amide of at least two kinds of heat transmission mediums.The method can comprise heat transmission medium heating of can flowing first, can to flow heat transmission medium to provide heated first.The method can comprise heat is passed to second can flows heat transmission medium from described heated first heat transmission medium that can flow, and can to flow heat transmission medium to provide heated second.The method also can comprise parts heat being accommodated polymeric amide from described heated second at least one that can flow that heat transmission medium is passed to polymeric amide synthesis system.

Description

For the preparation of polymeric amide, especially nylon-6, the well heater in the device of 6 and heat exchanger system

The cross reference of related application

This application claims the benefit of priority of the U.S. Provisional Patent Application numbers 61/817,994 submitted on May 1st, 2013, it is open is combined in this with its full content by reference.

Technical field

The utility model relates to multiple heat transmission medium.

Background technology

Polymeric amide has useful character as high weather resistance and intensity, and this makes them can use in multiple environment.Polymeric amide such as nylon, aromatic poly amide and poly-(aspartic acid) sodium are generally used for, such as, and carpet, air bag, mechanical part, dress ornament, rope and stocking.Nylon-6,6, a kind of soft and smooth thermoplastic material is also a kind of polymeric amide the most often used.Nylon-6, the long molecular chain of 6 and dense structure make it qualified as senior nylon fiber, and it represents high mechanical strength, rigidity and thermostability.

Polymeric amide is commercial synthesis in extensive producing apparatus.Such as, nylon-6,6 by making hexamethylene-diamine and the condensation reaction of hexanodioic acid experience, can form amido linkage and discharge water and synthesize.In a series of parts comprising autoclave or reactor, flasher and finisher, heat is applied to reaction mixture and water is little by little removed with driven equilibrium towards polymeric amide, until polymkeric substance reaches required length range.Afterwards, by the nylon-6 of melting, 6 are extruded into pellet, can be spun as fiber or the shape being processed as other.Whole producing apparatus needs a large amount of heating, occurs to make condensation reaction and removes water from reaction mixture.Typically, central heating installation is by the single heating circuit heating that is filled with volatility heat transmission medium with by medium vapor, and this medium is circulated to all parts needing heating at whole equipment afterwards.

In the method and apparatus synthesized for polymeric amide, there is the security risk relevant to the use of a large amount of volatile materialss as heat transmission medium, and exist and be such as used for the relevant loss in efficiency of the heating of multiple parts of equipment and inconvenient and so on problem to using the heating circuit of single whole equipment (plant-wide).As described herein, the utility model can provide the solution to these problems.

Utility model content

An aspect of the present utility model provides a kind of for the preparation of the well heater in the device of polymeric amide and heat exchanger system, and described device comprises:

Well heater, described heater configuration is heat transmission medium heating of can flowing first, can to flow heat transmission medium to provide heated first;

First heat exchanger, described first heat exchanger arrangement is heat can be flowed heat transmission medium transmission from described heated first, can to flow heat transmission medium to provide heated second; With

Second heat exchanger, described second heat exchanger arrangement is parts heat being accommodated polymeric amide from described heated second at least one that can flow that heat transmission medium is passed to polymeric amide synthesis system.

Another aspect of the present utility model provides a kind of for the preparation of nylon-6, the well heater in the device of 6 and heat exchanger system, and described device comprises:

Well heater, described heater configuration is heat transmission medium heating of can flowing comprise terphenyl first, can to flow heat transmission medium to provide heated first;

First heat exchanger, described first heat exchanger arrangement is heat be passed to and comprise second of phenyl ether and biphenyl from described heated first heat transmission medium that can flow and can to flow heat transmission medium, can to flow heat transmission medium to provide heated second heat transmission medium and used first that can flow, and the heat transmission medium that can flow described used first circulation is back to the first heat exchanger, wherein

Described first heat transmission medium, described heated first heat transmission medium and described used first heat transmission medium that can flow that can flow that can flow is arranged in the first heating circuit,

Can flow the transmittance process of heat transmission medium to described second from described heated first heat transmission medium that can flow in the described first can the flow heating of heat transmission medium and heat, described first heat transmission medium, described heated first heat transmission medium and described used first heat transmission medium that can flow that can flow that can flow is liquid phase substantially

Be passed to described first can flow heat transmission medium heat and comprise complete sensible heat substantially from the described first heat that can flow heat transmission medium transmission, and

Heat can flowed the transmittance process of heat transmission medium from described heated first heat transmission medium that can flow to described second, the heat transmission medium that can flow described second all gasifies substantially; With

Second heat exchanger, described second heat exchanger arrangement is that heat is passed to from described heated second heat transmission medium that can flow the nylon-6 comprising pre-heaters, vaporizer, polymerization reactor, flasher, finisher or autoclave, at least one parts of 6 synthesis systems, thus provide used second can to flow heat transmission medium, and the heat transmission medium that can flow described used second circulation be back to from described heated first can flow heat transmission medium heat transmission in, wherein

Second heat transmission medium and described heated second heat transmission medium that can flow that can flow is arranged in the second heating circuit, described second heating circuit is configured to control the described second temperature of saturation that can flow heat transmission medium, the temperature of the parts of polymeric amide is wherein accommodated by least one controlling that described temperature of saturation controls described polymeric amide synthesis system

Second heat transmission medium and described used second heat transmission medium that can flow that can flow is liquid phase substantially,

Heated second heat transmission medium that can flow is liquid phase substantially, and

Be passed to the described second heat that can flow heat transmission medium, and comprise from the described second heat that can flow heat transmission medium transmission: the latent heat comprising heat of gasification of 70-100%, and 0-30% sensible heat.

Another aspect of the present utility model provides a kind of for the preparation of the well heater in the system of polymeric amide and heat exchanger system, and described system comprises:

Well heater, described heater configuration can to flow heat transmission medium to provide heated first for heating first heat transmission medium that can flow;

First heat exchanger, described first heat exchanger arrangement is for flowing heat heat transmission medium to provide heated second from the described heated first heat transmission medium transmission of can flowing; With

The utility model can provide a kind of method preparing polymeric amide.The method can comprise heat transmission medium heating of can flowing first, can to flow heat transmission medium to provide heated first.The method can comprise heat is passed to second can flows heat transmission medium from heated first heat transmission medium that can flow, and can to flow heat transmission medium to provide heated second.The method also can comprise parts heat being accommodated polymeric amide from heated second at least one that can flow that heat transmission medium is passed to polymeric amide synthesis system.

The utility model can provide one to prepare nylon-6, the method for 6.The method can comprise: the heat transmission medium that can flow comprise terphenyl first heats, and can to flow heat transmission medium to provide heated first.The method can comprise and heat is passed to and comprises second of phenyl ether and biphenyl from heated first heat transmission medium that can flow and can to flow heat transmission medium, can to flow heat transmission medium to provide heated second heat transmission medium and used first that can flow.First heat transmission medium, heated first heat transmission medium and used first heat transmission medium that can flow that can flow that can flow can be arranged in the first heating circuit.Can flow heat transmission medium heating and heat is passed to second can flows the process of heat transmission medium from heated first heat transmission medium that can flow by first, first can flow heat transmission medium and used first flowable media of heat transmission medium, heated first that can flow can be liquid phase substantially.Be passed to first can flow heat transmission medium heat and complete sensible heat substantially can be comprised from the first heat that can flow heat transmission medium transmission.Heat is being passed to second can flows the process of heat transmission medium from heated first heat transmission medium that can flow, and second heat transmission medium that can flow can all be vaporized substantially.The method can comprise heat transmission medium circulation of can flowing used first and be back to the first heating can flowing heat transmission medium.The method can comprise: heat is passed to the nylon-6 comprising pre-heaters, vaporizer, polymerization reactor, flasher, finisher or autoclave, at least one parts of 6 synthesis systems from heated second heat transmission medium that can flow; There is provided used second can to flow heat transmission medium.Second heat transmission medium and heated second heat transmission medium that can flow that can flow can be arranged in the second heating circuit.Second heat transmission medium and used second heat transmission medium that can flow that can flow can be liquid phase substantially.Heated second heat transmission medium that can flow can be liquid phase substantially.Be passed to the second heat that can flow heat transmission medium, and the latent heat comprising heat of gasification of about 70-100% can be comprised from the second heat that can flow heat transmission medium transmission, and about 0-30% sensible heat.The pressure that the method can also comprise control second heat transfer circuit, to control the second temperature of saturation that can flow heat transmission medium, wherein accommodates the temperature of the parts of polymeric amide by least one controlling that temperature of saturation controls polymeric amide synthesis system.The method can also comprise heat transmission medium circulation of can flowing used second be back to from described heated first can flow heat transmission medium heat transmission in.

The utility model can be provided for the system preparing polymeric amide.This system can comprise well heater, and described heater configuration can to flow heat transmission medium to provide heated first for heat transmission medium heating of can flowing first.This system can comprise the first heat exchanger, and described first heat exchanger arrangement is for flowing heat transmission medium from the heated first heat transmission medium transmission heat that can flow to provide heated second.This system can also comprise the second heat exchanger, and described second heat exchanger arrangement is parts heat being accommodated polymeric amide from heated second at least one that can flow that heat transmission medium is passed to polymeric amide synthesis system.

The utility model can provide a kind of device for the preparation of polymeric amide.This device can comprise well heater, and described heater configuration can to flow heat transmission medium to provide heated first for heat transmission medium heating of can flowing first.This device can comprise the first heat exchanger, and described first heat exchanger arrangement is for flowing heat transmission medium from the heated first heat transmission medium transmission heat that can flow to provide heated second.This device can also comprise the second heat exchanger, and described second heat exchanger arrangement is parts heat being accommodated polymeric amide from heated second at least one that can flow that heat transmission medium is passed to polymeric amide synthesis system.

The utility model can provide a kind of for the preparation of nylon-6, the device of 6.This device can comprise well heater, and described heater configuration is heat transmission medium heating of can flowing comprise terphenyl first, can to flow heat transmission medium to provide heated first.This device can comprise the first heat exchanger, described first heat exchanger arrangement is heat be passed to and comprise second of phenyl ether and biphenyl from heated first heat transmission medium that can flow and can to flow heat transmission medium, to provide heated second heat transmission medium and used first that can flow can to flow heat transmission medium, and heat transmission medium circulation of can flowing used first is back to the first heat exchanger.First heat transmission medium, heated first heat transmission medium and used first heat transmission medium that can flow that can flow that can flow can be arranged in the first heating circuit.Can flow heat transmission medium heating and heat is passed to second can flows the process of heat transmission medium from heated first heat transmission medium that can flow by first, first heat transmission medium, heated first heat transmission medium and used first heat transmission medium that can flow that can flow that can flow is liquid phase substantially.Be passed to first can flow heat transmission medium heat and complete sensible heat substantially can be comprised from the first heat that can flow heat transmission medium transmission.Heat is being passed to second can flows the process of heat transmission medium from heated first heat transmission medium that can flow, and second heat transmission medium that can flow can all be gasified substantially.This device can comprise the second heat exchanger, described second heat exchanger arrangement is: heat is passed to from heated second heat transmission medium that can flow the nylon-6 comprising pre-heaters, vaporizer, polymerization reactor, flasher, finisher or autoclave, at least one parts of 6 synthesis systems, there is provided used second can to flow heat transmission medium, and heat transmission medium circulation of can flowing used second be back to from described heated first can flow heat transmission medium heat transmission in.Second heat transmission medium and heated second heat transmission medium that can flow that can flow can be arranged in the second heating circuit, it can be the pressure that is configured to control second heat transfer circuit to control the second temperature of saturation that can flow heat transmission medium, is wherein accommodated the temperature of the parts of polymeric amide by least one controlling that temperature of saturation controls polymeric amide synthesis system.Second can flow heat transmission medium and used second can flow heat transmission medium can separately for liquid phase substantially, heated second heat transmission medium that can flow can be liquid phase substantially.Be passed to the second heat that can flow heat transmission medium, and can flow the heat that heat transmission medium transmits from second, the latent heat comprising heat of gasification of about 70-100% can be comprised, and about 0-30% sensible heat.

The utility model can provide and be better than other benefits for the preparation of the mthods, systems and devices of polymeric amide, and at least some is wherein unexpected.If the one-level heating circuit containing volatile matter (such as, gaseous state) heat transmission medium is leaked, then leak material and can spread throughout leaking space around.If volatility heat transmission medium is flammable, then leak blast or the burning risk that can cause throughout leaking space around.In addition, heat of steam Transfer Medium can cause the most adjacent neighbouring security risks far exceeding leakage.Occur making polymer materials enter one-level heating circuit if leaked, then formed can set up risk of burning significantly for the coke heated in the stove of one-level heating circuit.One-level heating circuit containing non-volatility heat transmission medium (such as, liquid) can be more safer than the heating circuit containing volatility heat transmission medium, and the total amount of the dangerous volatility heat transmission medium that equipment can be made to have is much smaller.If leak appearance, then non-volatility is leaked material and is generally moved to the ground around leaking, and any burning and security risks mastery is limited in the region of leaking neighbouring and below, and has the risk of explosion lower than volatile materials.Occur making polymer materials enter one-level heating circuit if leaked, then the burning risk from the pipe of the coking in well heater can be lower significantly.

Single loop containing non-volatility material or secondary heating circuit can experience localized hyperthermia owing to use sensible heat so that heat is passed to concrete parts from heating circuit, and this can make the heating difficulty controlling these parts.The shortcoming relevant to the non-volatility material used in the heating circuit of the parts for heating installation can be avoided by using each embodiment of the present utility model: when using the one-level heating circuit containing non-volatility heat transmission medium (such as, at used temperature and pressure, when heated and after cooling material remains liquid substantially) to heat secondary heating circuit time, in respective one or more secondary heating circuits for heating one or more parts, use volatile materials (such as, at used temperature and pressure, material becomes gasification substantially and condensation after cooling when heating).Secondary circuit may be used for heating and mainly uses latent heat (such as, heat of gasification) multiple parts to transfer heat to parts, allow valuably easier temperature control avoid the use of a large amount of volatile materialss simultaneously and avoid use single heating circuit heat all parts.

The secondary circuit using the primary circuit of more low volatility heat transmission medium to heat for the higher volatility heat transmission medium of multiple different parts can make more easily to repair (fix) for the leakage in the heating circuit of independent parts.Such as, if occurring leaking for having wherein in the single heating loop of steam heat transfer material of the several parts around heating installation, then whole loop must be closed to keep in repair leakage, or extinguish by leaking the burning caused, cause the equipment off-line of most, this can be inconvenience with costliness.But by having the steam heat transfer material be included in the secondary circuit being specific to one or more concrete parts, the leakage in secondary circuit only needs the maintenance in this loop, the remaining part of equipment normally can continue operation simultaneously.In Multi-instance, by using non-volatility heat transmission medium and the volatile combustible heat transmission medium by avoiding use a large amount of in primary circuit, the security risks relevant to the use of volatility heat transfer material reduces.Such as, can be than low containing the spillage risk in the large loop of steam heat transfer material containing the leakage in the large primary circuit of liquid phase heat transfer material.

The use in the loop of single heat transfer material can will can be used for the temperature that the temperature limitation of the material that heat trnasfer uses be close limit.Be used in the secondary circuit wherein with volatility heat transmission medium can allow to promote the temperature of heat transmission medium control for independent parts.Primary circuit can be used vaporized for the volatile materials in secondary circuit, and it can allow the independent parts being condensed the equipment that transfers heat to.The pressure in secondary circuit can be regulated to control the temperature of saturation of heat transmission medium, thus the temperature of the volatility heat transmission medium gasification accurately controlled in secondary circuit and condensation, provide the control larger for the preparation of the mthods, systems and devices of polymeric amide than other of the temperature of equipment unit.When adopting the multiple secondary circuit separately containing volatility heat transmission medium, the temperature of saturation of the heat transmission medium in each secondary circuit can be readily controlled.

The use with the single loop of volatility heat transfer material (steam/gas phase) can comprise by heat transfer material initial heating to the suitable temperature used higher than each parts by equipment.This can cause heat transfer material to be overheated (such as, making temperature higher than the temperature of saturation for setting pressure).If need rigid temperature to control, then need other complicacy to remove overheated to obtain temperature homogeneity.In each embodiment, secondary circuit can allow or closely temperature of saturation secondary circuit in use heat transfer material, thus obtain high temperature homogeneity with the equipment of lower complexity.In each embodiment, relative superheated vapo(u)r, uses saturated vapo(u)r can be more effective for heat trnasfer.If steam is significantly overheated, then first steam was cooled to temperature of saturation before condensation occurs.Overheated steam has the Heat transfer coefficient more much lower than condensing steam.In each embodiment, use to have and as saturated vapo(u)r more heat trnasfer are allowed for given surface-area than other method or the few overheated heat transfer material of device or allow less surface-area to obtain the heat trnasfer of identical amount.In each embodiment, the use of the low volatilyty liquid in one-level heating circuit and the condensing steam in secondary circuit can allow less area of heat transfer (process vessel size), as in the method for a part with high heat demand.

Accompanying drawing explanation

In the accompanying drawing not necessarily drawn in proportion, in several view, identical numeral describes substantially the same parts.There is the different example of the substantially the same parts of the identical numeral of different letter suffix.Accompanying drawing by the mode of example, but is not the mode by limiting, multiple embodiments of discussing in this article of example in general manner.

Fig. 1 example is according to the system of multiple embodiment or device.

Fig. 2 example is according to the system of multiple embodiment or device.

Embodiment

Now with detailed reference to some embodiment of disclosed topic, the example partly illustrates in the accompanying drawings.Although the theme disclosed in the claim cited by combining being described, should be appreciated that exemplified theme is not expected and claim is defined as disclosed theme.

The value expressed with range format should be interpreted as not only comprising using flexi mode the numerical value that the boundary as scope clearly describes, and comprises all independent numerical value or subrange that comprise within the scope of this, as stated the same by each numerical value clearly with subrange.Such as, the scope of " about 0.1% to about 5% " or " about 0.1% to 5% " should be interpreted as not only comprising about 0.1% to about 5%, and comprise independent value in pointed scope (such as, 1%, 2%, 3% and 4%) and subrange (such as, 0.1% to 0.5%, 1.1% to 2.2%, 3.3% to 4.4%).Unless otherwise noted, state that " about X to Y " has the implication identical with " about X to about Y ".Equally, unless otherwise noted, state that " about X, Y or about Z " has the implication identical with " about X, about Y or about Z ".

In this article, unless context is clearly pointed out in addition, term " ", " one " or " described " are used to comprise one or more than one.Unless otherwise noted, term "or" is used to the "or" referring to non-exclusive.In addition, it is to be appreciated that adopt herein and the wording otherwise do not defined or term only for illustration of object and be nonrestrictive.The use of any paragraph heading is contemplated to and helps the understanding of article and be not interpreted as limiting; The information relevant to paragraph heading can within special paragraph or outside occur.In addition, all disclosure, patents, and patent literature quoted in this article are all combined in this with it by reference, as individually through quote combine.When use herein between those documents be combined by reference is like this inconsistent, in conjunction with citing document in use should be considered to supplementing herein; For irreconcilable contradiction, be as the criterion with usage herein.

In manufacture method described herein, multiple step can be carried out with random order and not depart from principle of the present utility model, except when when explicitly pointing out interim or working order.In addition, concrete step can be carried out simultaneously, unless clear and definite claim language points out that they carry out dividually.Such as, the step of the X of carrying out required for protection and the step of the Y of carrying out required for protection side by side can be carried out in single operation, and the method obtained will drop in the literal scope of method required for protection.

Term as used herein " about " can certain variable pitch in permissible level or scope, such as, in 10% of described numerical value or the restriction of described scope, in 5%, or in 1%.

Term as used herein " substantially " refers to major part, or mainly, as accounted at least about 50%, 60%, 70%, 80%, 90%, 95%, 96%, 97%, 98%, 99%, 99.5%, 99.9%, 99.99% or at least about more than 99.999%.

Term as used herein " solvent " refers to can the liquid of dissolved solids, liquid or gas.The limiting examples of solvent is siloxanes, organic compound, water, alcohol, ionic liquid and supercutical fluid.

Term as used herein " standard temperature and pressure (STP) " refers to 0 DEG C and 100KPa.

Term as used herein " polymkeric substance " can comprise multipolymer.

Term as used herein " heat exchanger " refers to the device for heat to be passed to another from a medium.Medium can be separated by solid wall.The example of heat exchanger comprises shell-and-tube formula interchanger, plate-type heat exchanger, shell-and-plate heat exchanger, adiabatic wheel heat exchangers, plate fin type heat exchanger, pillow plate-type heat exchanger, fluid heat exchanger, waste heat recovery unit, dynamically scraped-surface heat exchanger and phase-change heat exchanger.

Term as used herein " sensible heat " refers to the heat by object or thermokinetics systems exchange, and the effect wherein exchanged is the change in the temperature of object or system substantially, and little fading to mutually does not have phase transformation.

Term as used herein " latent heat " refers to the heat by object or thermokinetics systems exchange, and the effect wherein exchanged is the phase transformation in object or system substantially, and is seldom changed to and does not have temperature variation.

Term as used herein " relative viscosity " (RV) refers to the ratio at 25 DEG C of solution measured and solvent viscosity in capillary viscosimeter.In an example, be 8.4 % by weight polyamide solution in 90% formic acid (90 % by weight formic acid and 10 % by weight water) at viscosity (in centipoise) and 90% formic acid of 25 DEG C from the ratio in the viscosity (in centipoise) of 25 DEG C according to the RV of ASTM D789-06.

Term as used herein " temperature of saturation " refers to that at special pressure (such as, at the saturation pressure of this temperature) liquid boiling be the temperature that the temperature of its vapor phase and steam start to be condensed into its liquid phase.Material is under the temperature of saturation of specified pressure, and when temperature reduces or pressure increases, this material is by condensation.Material is under the temperature of saturation of specified pressure, and when temperature increases or pressure reduces, boiling is its vapor phase by material.

The utility model relates to the mthods, systems and devices for the preparation of polymeric amide with at least two kinds of heat transmission mediums.

prepare the method for polymeric amide

The method can comprise heat transmission medium heating of can flowing first, can to flow heat transmission medium to provide heated first.Heating can be carried out in any suitable manner.Heating can at heat exchanger, as carried out in the heat exchanger of any appropriate.First heat transmission medium that can flow can be arranged in heating circuit.First can flow heat transmission medium can heating and can be used to transmit heat to whole equipment from one-level heating circuit to one or more secondary heating circuit in the center heating region in power house or equipment, is back to power house afterwards for reheating.Secondary heating circuit may be used for the one or more independent parts of heating installation.First heat transmission medium that can flow can be non-volatility, to make first heat transmission medium that can flow can be liquid phase substantially before and after heating.

One-level heating circuit and one or more secondary heating circuit can have Arbitrary Relative in volume suitable each other.One-level heating circuit can have the volume larger than secondary heating circuit.One-level heating circuit can have approximately identical volume or have the volume less than secondary heating circuit.One-level heating circuit can have about 0.000 of the volume of secondary heating circuit, 1%-1, 000, 000%, or about 0.1% of the volume of secondary heating circuit to about 1, 000%, about 1% to about 100%, about 100% to 1, 000, 000%, about 1, 000% to 1, 000, 000%, or about 0.000, 1% or lower, or about 0.001%, 0.01%, 0.1%, 1%, 5%, 10%, 25%, 50%, 75%, 100%, 125%, 150%, 175%, 200%, 300%, 400%, 500%, 750%, 1000%, 1500%, 2000%, 3000%, 4000%, 5000%, 10, 000%, 20, 000%, 50, 000%, 100, 000%, about 500, 000%, or about 1, 000, more than 000%.First heat transmission medium and heated first heat transmission medium that can flow that can flow can have the heat transmission medium and heated second that can to flow with second and can to flow the mass ratio of heat transmission medium any appropriate.Such as, first heat transmission medium and heated first mass combination and second of heat transmission medium can the flow ratio of mass combination of heat transmission medium of heat transmission medium and heated second that can flow that can flow that can flow can be about 0.000, 000, 1: 1 to about 10, 000, 000: 1, about 100: 1 to about 100: 1, about 0.000, 000, 1: 1 or lower, or about 0.000, 1: 1, 0.001: 1, 0.01: 1, 0.1: 1, 1: 1, 5: 1, 10: 1, 25: 1, 50: 1, 75: 1, 100: 1, 125: 1, 150: 1, 175: 1, 200: 1, 300: 1, 400: 1, 500: 1, 750: 1, 1000: 1, 1500: 1, 2000: 1, 3000: 1, 4000: 1, 5000: 1, 10, 000: 1, 20, 000: 1, 50, 000: 1, 100, 000: 1, 500, 000: 1, about 1, 000, 000: 1 or about 10, 000, more than 000: 1.

The method can comprise heat is passed to second can flows heat transmission medium from heated first heat transmission medium that can flow, and can to flow heat transmission medium to provide heated second.Heating can be carried out in any suitable manner.Heating can at heat exchanger, as carried out in the heat exchanger of any appropriate.Second heat transmission medium that can flow can be that sufficiently volatility, to make it possible to it to be heated to gas phase substantially by first heat transmission medium that can flow, and makes it possible to it to the transmittance process of one or more parts of equipment, to be condensed to liquid phase substantially from heated second heat transmission medium that can flow in heat.

First heat transmission medium that can flow can remain liquid by the transmission of heating and heat, and simultaneously second heat transmission medium that can flow can become when heated and is vaporized and can work as condensation when transmitting hot from it.In standard temperature and pressure (STP), first heat transmission medium that can flow can have the low vapour pressure of the heat transmission medium that can to flow than second; Or first heat transmission medium that can flow can have the high vapour pressure of the heat transmission medium that can to flow than second.The second pressure that can flow heat transmission medium can be controlled gasify and condensation in required temperature to make it.Because first can flow heat transmission medium can by heating after remain liquid, and second heat transmission medium that can flow can become after heating and is substantially vaporized, heated second heat transmission medium that can flow can have the higher vapour pressure of the heat transmission medium that can to flow than heated first.

First heat transmission medium and second heat transmission medium that can flow that can flow can be all combustible organic materials, or can all comprise flammable organic constituent.Steam and high vapour pressure combustible organic materials are typically with catch fire and the burn risk larger than the liquid combustible organic compound with more low-vapor pressure.Heated second can flow heat transmission medium can be can flow than heated first heat transmission medium more flammable and more inflammable at least one.

The method can also comprise parts heat being accommodated polymeric amide from heated second at least one that can flow that heat transmission medium is passed to polymeric amide synthesis system.Polymeric amide can be the polymeric amide of any appropriate, as nylon 6, nylon 7, nylon 11, nylon 12, nylon 6,6, nylon 6,9; Nylon 6,10, nylon 6,12, the polymeric amide (such as, high-temperature nylon) of partially aromatic, or their multipolymer.The transmission of heat can be carried out in any suitable manner.The transmission of heat can at heat exchanger, as carried out in the heat exchanger of any appropriate.Heat can be passed to single equipment unit from heated second heat transmission medium that can flow, or multiple equipment unit.Such as, heat can be able to be flowed at least one that heat transmission medium is passed to pre-heaters, vaporizer, polymerization reactor, flasher, finisher and autoclave from heated second.Pre-heaters can be the pre-heaters of any appropriate and can be connected with the parts of any appropriate of equipment, as the pre-heaters at least one in vaporizer, polymerization reactor, flasher, finisher and autoclave.The temperature of independent parts can be made to arrive the temperature of any appropriate or the scope of temperature by heated second heat transmission medium that can flow.Such as, can by enough heat trnasfer to vaporizer the temperature of wherein reaction mixture to be increased to the temperature of any appropriate, 100-230 DEG C according to appointment, or 100-150 DEG C, or about 100 DEG C or lower, or the temperature of more than about 110 DEG C, 120,130,140,150,160,170,180,190,200,210,220 DEG C or about 230 DEG C.Such as, can by enough heat trnasfer to reactor the temperature of reaction mixture to be wherein increased to the temperature of any appropriate, 150-300 DEG C according to appointment, or about 200-250 DEG C, or about 215-245 DEG C, or about 150 DEG C or lower, or the temperature of more than about 160 DEG C, 170,180,190,200,210,215,220,225,230,235,240,245,250,260,270,280,290 DEG C or about 300 DEG C.Such as, can by enough heat trnasfer to flasher the temperature of reaction mixture to be wherein increased to the temperature of any appropriate, 150-400 DEG C according to appointment, or about 250-350 DEG C, or about 250-310 DEG C, or about 200 DEG C or lower, or about 210 DEG C, 220,230,240,250,260,265,270,275,280,285,290,295,300,305,310,320,330,340 DEG C, or the temperature of more than about 350 DEG C.Such as, can by enough heat trnasfer to finisher the temperature of reaction mixture to be wherein increased to the temperature of any appropriate, 150-400 DEG C according to appointment, or about 250-350 DEG C, or about 250-310 DEG C, or about 200 DEG C or lower, or about 210 DEG C, 220,230,240,250,260,265,270,275,280,285,290,295,300,305,310,320,330,340 DEG C, or the temperature of more than about 350 DEG C.

Heat can be comprised from heated second at least one parts that heat transmission medium is passed to polymeric amide synthesis system that can flow the temperature temperature of at least one parts of polymeric amide synthesis system being remained on any appropriate, 100 DEG C to about 400 DEG C according to appointment, 150 DEG C to 350 DEG C, 150 DEG C to 250 DEG C, 250 DEG C to 350 DEG C, 200 DEG C to 300 DEG C, or about 210 DEG C to 260 DEG C, or about 100 DEG C, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210, 220, 230, 240, 250, 260, 270, 280, 290, 300, 310, 320, 330, 340, 350, 360, 370, 380, more than 390 DEG C or about 400 DEG C.Heat can be comprised from heated second at least one parts that heat transmission medium is passed to polymeric amide synthesis system that can flow the temperature temperature of the polyamide compound reactor being remained on any appropriate, 210 DEG C to 260 DEG C according to appointment, or about 218 DEG C to about 250 DEG C, or about 100 DEG C or lower, or about 110 DEG C, 120, 130, 140, 150, 160, 170, 180, 190, 200, 205, 210, 215, 220, 225, 230, 235, 240, 245, 250, 255, 260, 265, 270, 280, 290, 300, 310, 320, 330, 340, 350, 360, 370, 380, more than 390 DEG C or about 400 DEG C.

In some instances, heated second can flow other the object or alternative as at least one parts transferring heat to polymeric amide synthesis system that heat transmission medium may be used for except at least one parts transferring heat to polymeric amide synthesis system.Such as, second heat transmission medium that can flow can be water, and heated second heat transmission medium that can flow can be water vapour, and it can need to use in multiple different pieces of the equipment of water vapour wherein, avoids the expense of the water vapour boiler of combustion fuel.

for the preparation of system and the device of polymeric amide

The utility model can be provided for the system preparing polymeric amide.This system can be the system can carrying out any appropriate of method described herein.This system comprises well heater.Well heater can be the well heater of any appropriate.Well heater can be that the heat transmission medium heating that is configured to can to flow first can be flowed heat transmission medium to provide heated first.

System can comprise the first heat exchanger.First heat exchanger can be the heat exchanger of any appropriate.First heat exchanger can be configured to can to flow heat transmission medium from the heated first heat transmission medium transmission heat that can flow to provide heated second.

This system can comprise the second heat exchanger.Second heat exchanger can be the heat exchanger of any appropriate.Second heat exchanger can be configured to parts heat being accommodated polymeric amide from heated second at least one that can flow that heat transmission medium is passed to polymeric amide synthesis system.

The utility model can provide a kind of device for the preparation of polymeric amide.This system can be the device that can carry out any appropriate of method described herein.This device can comprise well heater.Well heater can be the well heater of any appropriate.The well heater heat transmission medium heating that can be configured to can to flow first can be flowed heat transmission medium to provide heated first.

This device can comprise the first heat exchanger.First heat exchanger can be the heat exchanger of any appropriate.First heat exchanger can be configured to can to flow heat transmission medium from the heated first heat transmission medium transmission heat that can flow to provide heated second.

This device can comprise the second heat exchanger.Second heat exchanger can be the heat exchanger of any appropriate.Second heat exchanger can be configured to parts heat being accommodated polymeric amide from heated second at least one that can flow that heat transmission medium is passed to polymeric amide synthesis system.

Fig. 1 illustrates the embodiment of system for the preparation of polymeric amide or device 10.This system or device can comprise well heater 15.Well heater heats being arranged on the heat transmission medium 20 that can flow of first in one-level heating circuit 25, can to flow heat transmission medium 30 to provide heated first.This system or device can comprise the first heat exchanger 35.Heat is passed to and is arranged on second secondary heating circuit 45 from heated first heat transmission medium 30 that can flow and can flows heat transmission medium 40 by the first heat exchanger 35, can to flow heat transmission medium 50 to provide heated second.The heat transmission medium 20 (such as, with cross first can flow heat transmission medium) that can flow first transmits and is back to well heater 15 for reheating.System or device can comprise the second heat exchanger 55.Heat is accommodated the parts of polymeric amide by the second heat exchanger 55 from heated second at least one that can flow that heat transmission medium 50 is passed to polymeric amide synthesis system, it can be integrated with the second heat exchanger 55.The heat transmission medium 40 (such as, used second can flow heat transmission medium) that can flow second transmits and is back to the second heat exchanger 35 for reheating.System or device can use the mode of any appropriate so that heat transmission medium is sent to another, as pumping or convection current from a position.

The system of Fig. 2 example for the preparation of polymeric amide or the embodiment of device 21.This system or device can comprise well heater 15.Well heater heats being arranged on the heat transmission medium 20 that can flow of first in one-level heating circuit 25, can to flow heat transmission medium 30 to provide heated first.This system or device can comprise the first heat exchanger 35.Heat is passed to and is arranged on second secondary heating circuit 45 from heated first heat transmission medium 30 that can flow and can flows heat transmission medium 40 by the first heat exchanger 35, can to flow heat transmission medium 50 to provide heated second.This system or device can comprise the second heat exchanger 55.Heat is accommodated the parts of polymeric amide by the second heat exchanger 55 from heated second at least one that can flow that heat transmission medium 50 is passed to polymeric amide synthesis system, it can be integrated with the second heat exchanger 55.Heat transmission medium (such as, used second can flow heat transmission medium) transmission of can flowing second is back to the second heat exchanger for reheating.The heat transmission medium 30 that can flow heated first is passed to the 3rd heat exchanger 36.Heat is passed to and is arranged on second secondary heating circuit 46 from heated first heat transmission medium 30 that can flow and can flows heat transmission medium 41 by the 3rd heat exchanger 36, can to flow heat transmission medium 51 to provide heated second.This system or device can comprise the 4th heat exchanger 56.Heat is accommodated the parts of polymeric amide by the 4th heat exchanger 56 from heated second at least one that can flow that heat transmission medium 51 is passed to polymeric amide synthesis system, it can be integrated with the 4th heat exchanger 56.The heat transmission medium 41 (such as, used second can flow heat transmission medium) that can flow second transmit be back to the 3rd heat exchanger 36 for the treatment of.The heat transmission medium 20 (such as, used first can flow heat transmission medium) that can flow first transmits and is back to well heater 15 for reheating.

Although the embodiment of Fig. 2 example the first heat exchanger 35 and the 3rd heat exchanger 36 is connected to make the 3rd heat exchanger 36 to transfer heat to second and can flow at heated first heat transmission medium 30 that can flow and to receive this after heat transmission medium 40 and heated first can to flow heat transmission medium 30, the utility model is also included in being arranged in parallel of the heat exchanger of exchanging heat between one-level and secondary heating circuit.Such as in one embodiment, 3rd heat exchanger 36 point that heat transmission medium can flow used first upstream that heat transmission medium returns from heat exchanger 35 in the first heating circuit that can be able to flow heated first takes out, and does not take out first of the heat transmission medium 40 that can be flowed by some heat trnasfer to the second in the first heat exchanger 35 can to flow heat transmission medium to make the 3rd heat exchanger.

first can flow heat transmission medium

In the method, system or device, first heat transmission medium that can flow can be the flowed heat transmission medium of any appropriate.First heat transmission medium that can flow can comprise first one or more organic compound of feature that can flow heat transmission medium having and form and be suitable for using in mthods, systems and devices described herein.First heat transmission medium that can flow can be, such as, water, polyoxyethylene glycol, polypropylene glycol, mineral oil, silicone oil, phenyl ether, biphenyl, inorganic salt, board heat transfer fluid and Dowtherm ^tMat least one in board heat transfer fluid.First heat transmission medium that can flow can be, such as, board heat transfer fluid, as vLT (such as, methylcyclohexane, trimethylpentane), d-12 (such as, C _10-13alkane, such as, isoalkane), lT (such as, diethylbenzene), xP (such as, paraffin oil (white petroleum mineral oil)), 55 (such as, C _14-30alkylaryl compounds), 59 (such as, ethyl diphenyl ethane, diphenylethane, diethyl diphenylethane, ethylbenzene polymkeric substance), 62 (such as, diisopropyl biphenyl, tri isopropyl biphenyls), vP-3 (such as, phenylcyclohexane, dicyclohexyl), 66 (such as, terphenyl (ortho-terphenyl, meta-terphenyl, p-terphenyl), the terphenyl of hydrogenation, partially hydrogenated quaterphenyl, partially hydrogenated more senior polyphenyl), 72 (such as, phenyl ether, terphenyl, biphenyl, phenanthrene), vP-1 (such as, phenyl ether, biphenyl), at least one in FF (such as, the benzene of vinylation).First heat transmission medium that can flow can comprise, such as, and trimethylpentane, C _10-13alkane, C _10-13isoalkane, C _14-30the benzene of alkylaryl compounds, diethylbenzene, vinylation, phenylcyclohexane, C _14-30alkylbenzene, paraffin oil, ethyl diphenyl ethane, diphenylethane, diethyl diphenylethane, phenyl ether (diphenyl ether), phenyl ether (diphenyl oxide), ethylbenzene polymkeric substance, biphenyl, diisopropyl biphenyl, tri isopropyl biphenyl, methylcyclohexane, dicyclohexyl, terphenyl, the terphenyl of hydrogenation, partially hydrogenated quaterphenyl, partially hydrogenated more senior polyphenyl, phenyl ether and phenanthrene, biaryl compound, tri-aryl compounds, diaryl ether, triaryl ether, alkylaryl compounds, alkylaryl compounds, diaryl alkane based compound or their combination.

First heat transmission medium that can flow can have the temperature of any appropriate.Such as, first heat transmission medium that can flow can be about 20 DEG C to 400 DEG C, or about 50 DEG C to 350 DEG C, 100 DEG C to 300 DEG C, 100 DEG C to 200 DEG C, 200 DEG C to 250 DEG C, or about 250 DEG C to 300 DEG C, or about 20 DEG C or lower, or more than about 30 DEG C, 40,50,60,70,80,90,100,110,120,130,140,150,160,170,180,190,200,210,220,230,240,250,260,270,280,290,300,310,320,330,340,350,360,370,380,390 DEG C or about 400 DEG C.First heat transmission medium that can flow can have the phase of any appropriate, as gas phase, liquid phase, or the combination of its any appropriate.Such as, first can flow heat transmission medium can be by weight about 60% or lower, or about 70%, 80,85,90,95,96,97,98 or about more than 99% liquid phase.First heat transmission medium that can flow can be liquid phase substantially.

Heated first heat transmission medium that can flow can have the temperature of any appropriate.Such as, heated first heat transmission medium that can flow can be about 100 DEG C to 500 DEG C, 100 DEG C to 400 DEG C, 100 DEG C to 300 DEG C, 100 DEG C to 200 DEG C, 200 DEG C to 250 DEG C, 250 DEG C to 300 DEG C, 300 DEG C to 350 DEG C, 350 DEG C to 400 DEG C, 400 DEG C to 500 DEG C, 280 DEG C to 400 DEG C, or 330 DEG C to 350 DEG C, or about 100 DEG C or lower, or about 110 DEG C, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210, 220, 230, 240, 250, 260, 270, 280, 290, 300, 310, 320, 330, 340, 350, 360, 370, 380, more than 390 DEG C or about 400 DEG C.Heated first heat transmission medium that can flow can have the phase of any appropriate, as gas phase, liquid phase, or the combination of its any appropriate.Such as, heated first can flow heat transmission medium can be by weight about 60% or lower, or about 70%, 80,85,90,95,96,97,98 or about more than 99% liquid phase.Heated first heat transmission medium that can flow can be liquid phase substantially.

In the process that can flow heat transmission medium heating by first, first heat transmission medium that can flow can remain liquid (such as, substantially not occurring the first gasification can flowing heat transmission medium) substantially.First can flow heat transmission medium heating process in, be passed to the first heat that can flow heat transmission medium and can comprise complete sensible heat substantially.Such as, in the process that can flow heat transmission medium heating by first, be passed to the sensible heat that the first heat that can flow heat transmission medium can comprise any appropriate percentage ratio, according to appointment 60% or lower, or about 70%, 80,85,90,95,96,97,98 or about more than 99% sensible heat, and remaining part is latent heat (such as, heat of gasification).

Heat is being passed to second can flows the process of heat transmission medium from heated first heat transmission medium that can flow, and heated first heat transmission medium that can flow can remain liquid substantially.Such as, do not occur that first can flow the freezing of heat transmission medium.Heat is being passed to second can flowing the process of heat transmission medium from heated first heat transmission medium that can flow, is not substantially occurring the heated first condensation can flowing heat transmission medium.Such as, if heated first heat transmission medium that can flow is liquid phase substantially, there is not condensation, or only the heated first a small amount of gaseous component condensation can flowing heat transmission medium.Heat is passed to second can flows the process of heat transmission medium from heated first heat transmission medium that can flow, complete sensible heat substantially can be comprised from the heated first heat that can flow heat transmission medium transmission.Such as, heat is being passed to second can flowing the process of heat transmission medium from heated first heat transmission medium that can flow, the sensible heat of any appropriate percentage ratio can be comprised from the heated first heat that can flow heat transmission medium transmission, according to appointment 60% or lower, or the heat that about 70%, 80,85,90,95,96,97,98 or about more than 99% shows, and remaining part is latent heat (such as, heat of gasification).

First heat transmission medium and heated first heat transmission medium that can flow that can flow can all be arranged in the first heating circuit.Heat is passed to second heat transmission medium that can flow used first can be provided can to flow heat transmission medium from heated first heat transmission medium that can flow.The method can comprise heat transmission medium circulation of can flowing used first and be back to the first heating can flowing heat transmission medium.First heating circuit can be by the first heat transmission medium center heating location in a device and accommodate second can flow heat transmission medium one or more secondary circuits between the primary circuit that circulates, or the first heating circuit can be for such as, heating is less than and all accommodates the second primary circuit of secondary circuit that can flow heat transmission medium.

The method can comprise control first can flow heat transmission medium pressure and control heated first at least one that can flow in the temperature of heat transmission medium.Control first can flow heat transmission medium pressure and control the first heated pressure that can flow heat transmission medium and can comprise pressure in control first heating circuit.Can be the pressure of any appropriate by pressure-controlling, 50KPa to 1 according to appointment, 000,000KPa, 100KPa to 500,000KPa, or 500KPa to 250,000KPa, or about 50KPa or lower, or about 100KPa, 500KPa, 1MPa, 2MPa, 3,4,5,6,7,8,9,10,12.5,15,17.5,20,25,30,35,40,45,50,60,70,80,90,100,125,150,175,200MPa or about 250MPa or higher.In some instances, temperature of saturation can be controlled the temperature for any appropriate, 100 DEG C to 500 DEG C according to appointment, 100 DEG C to 400 DEG C, 100 DEG C to 300 DEG C, 100 DEG C to 200 DEG C, 200 DEG C to 250 DEG C, 250 DEG C to 300 DEG C, 300 DEG C to 350 DEG C, 350 DEG C to 400 DEG C, 400 DEG C to 500 DEG C, 210 DEG C to 350 DEG C, or 260 DEG C to 300 DEG C, or about 100 DEG C or lower, or about 110 DEG C, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210, 220, 230, 240, 250, 260, 270, 280, 290, 300, 310, 320, 330, 340, 350, 360, 370, 380, 390 DEG C or about 400 DEG C or higher.Heated first can flow heat transmission medium top temperature can heated first can flow heat transmission medium temperature of saturation any appropriate scope in, as the about 0-100 DEG C of temperature of saturation of the heat transmission medium that can flow heated first, 0-60 DEG C, in the scope of about 0-40 DEG C, or about 0 DEG C, 1,2,3,4,5,10,15,20,25,30,35,40,50,60,70,80,90, or in about 100 DEG C.In each embodiment, in the example of gasification comprising the first heat transmission medium, first heat transmission medium and heated first that can flow can be controlled similarly and can flow the pressure of heat transmission medium to control the first temperature of saturation that can flow heat transmission medium.Control can the flow temperature (such as, temperature of saturation) of heat transmission medium condensation of the first temperature and heated first that can flow heat transmission medium gasification and can control the heated second temperature that can flow heat transmission medium.

First heat transmission medium and heated first heat transmission medium that can flow that can flow can have the vapour pressure of any appropriate independently, 50KPa to 1 according to appointment, 000,000KPa, 100KPa to 500,000KPa, or 500KPa to 250,000KPa, or about 50KPa or lower, or about 100KPa, 500KPa, 1MPa, 2MPa, 3,4,5,6,7,8,9,10,12.5,15,17.5,20,25,30,35,40,45,50,60,70,80,90,100,125,150,175,200MPa, or about 250MPa or higher.

First heat transmission medium and heated first heat transmission medium that can flow that can flow can have the thermal capacitance of any appropriate.Such as, at about 100 DEG C or lower, or at about 110 DEG C, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210, 220, 230, 240, 250, 260, 270, 280, 290, 300, 310, 320, 330, 340, 350, 360, 370, 380, 390 DEG C, or at about 400 DEG C or higher, first heat transmission medium and heated first heat transmission medium that can flow that can flow can have about 0.2KJ/Kg DEG C to about 8.5KJ/Kg DEG C, about 1KJ/Kg DEG C to about 4KJ/Kg DEG C, about 0.2KJ/Kg DEG C or lower, or about 0.5KJ/Kg DEG C, 1, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3, 3.1, 3.2, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8KJ/Kg DEG C, or about 8.5KJ/Kg DEG C or higher thermal capacitance.

First can flow heat transmission medium can with the rate loop of any appropriate, 1L/ minute to about 1 according to appointment, 000,000L/ minute, or about 10L/ minute to about 100,000L/ minutes, or about 1L/ minute or lower, 10L/ minute, 20,30,40,50,60,70,80,90,100,125,150,175,200,225,250,275,300,350,400,450,500,600,700,800,900,1,000,2,500,5,000,10,000,50,000,100,000,500,000 or about 1,000,000L/ minute or higher.

second can flow heat transmission medium

In method, system or device, second heat transmission medium that can flow can be the flowed heat transmission medium of any appropriate.Second heat transmission medium that can flow can comprise second one or more organic compound of feature that can flow heat transmission medium having and form and be suitable for using in mthods, systems and devices described herein.Second heat transmission medium that can flow can comprise, such as, and at least one item in the following: water, polyoxyethylene glycol, polypropylene glycol, mineral oil, silicone oil, phenyl ether, biphenyl, inorganic salt, terphenyl, board heat transfer fluid and Dowtherm ^tMboard heat transfer fluid.Second heat transmission medium that can flow can comprise, such as, and Dowtherm ^tMboard heat transfer fluid, at least one item as in the following: Dowtherm ^tMa (such as, phenyl ether and biphenyl, such as, the eutectic mixture of phenyl ether and biphenyl, such as 26.5 % by weight phenylbenzene and 73.5 % by weight phenyl ether), Dowtherm ^tMg (such as, biaryl compound, tri-aryl compounds, diaryl and triaryl ether), Dowtherm ^tMj (such as, alkylaryl compounds), Dowtherm ^tMmX (such as, alkylaryl compounds), Dowtherm ^tMq (such as, diphenylethane, alkylaryl compounds), Dowtherm ^tMrP (such as, diaryl alkane based compound) and Dowtherm ^tMt (such as, C _14-30alkylbenzene).Second heat transmission medium that can flow can comprise, such as, and trimethylpentane, C _10-13alkane, C _10-13isoalkane, C _14-30the benzene of alkylaryl compounds, diethylbenzene, vinylation, phenylcyclohexane, C _14-30the terphenyl of alkylbenzene, paraffin oil, ethyl diphenyl ethane, diphenylethane, diethyl diphenylethane, phenyl ether, diphenyloxide, ethylbenzene polymkeric substance, biphenyl, diisopropyl biphenyl, tri isopropyl biphenyl, methylcyclohexane, dicyclohexyl, terphenyl, hydrogenation, partially hydrogenated quaterphenyl, partially hydrogenated more senior polyphenyl, phenyl ether and phenanthrene, biaryl compound, tri-aryl compounds, diaryl ether, triaryl ether, alkylaryl compounds, alkylaryl compounds, diaryl alkane based compound, or their combination.

Second heat transmission medium that can flow can have the temperature of any appropriate.Such as, second heat transmission medium that can flow can be about 20 DEG C to 400 DEG C, or about 50 DEG C to 350 DEG C, 100 DEG C to 300 DEG C, 100 DEG C to 200 DEG C, 200 DEG C to 250 DEG C, or about 250 DEG C to 300 DEG C, or about 20 DEG C or lower, or about 30 DEG C, 40,50,60,70,80,90,100,110,120,130,140,150,160,170,180,190,200,210,220,230,240,250,260,270,280,290,300,310,320,330,340,350,360,370,380,390 DEG C, or about 400 DEG C or higher.Second heat transmission medium that can flow can have the phase of any appropriate, as gas phase, liquid phase, or the combination of their any appropriate.Such as, second can flow heat transmission medium can be by weight about 60% or less, or the gas phase of about 70%, 80,85,90,95,96,97,98 or about 99% or more.Second heat transmission medium that can flow can be gas phase substantially.

Heated second heat transmission medium that can flow can have the temperature of any appropriate.Such as, heated second heat transmission medium that can flow can be about 100 DEG C to 500 DEG C, 100 DEG C to 400 DEG C, 100 DEG C to 300 DEG C, 100 DEG C to 200 DEG C, 200 DEG C to 250 DEG C, 250 DEG C to 300 DEG C, 300 DEG C to 350 DEG C, 350 DEG C to 400 DEG C, 400 DEG C to 500 DEG C, 210 DEG C to 350 DEG C, or 260 DEG C to 300 DEG C, or about 100 DEG C or lower, or about 110 DEG C, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210, 220, 230, 240, 250, 260, 270, 280, 290, 300, 310, 320, 330, 340, 350, 360, 370, 380, 390 DEG C or about 400 DEG C or higher.Heated second heat transmission medium that can flow can have the phase of any appropriate, as the combination of gas phase, liquid phase or their any appropriate.Such as, heated second can flow heat transmission medium can be by weight about 60% or less, or the gas phase of about 70%, 80,85,90,95,96,97,98 or about 99% or more.Heated second heat transmission medium that can flow can be gas phase substantially.

Heat is being passed to second can flowing the process of heat transmission medium from heated first heat transmission medium that can flow, second heat transmission medium that can flow can become gas (such as, second can flow heat transmission medium can be substantially all gasify) substantially.Heat is passed to second can flows the process of heat transmission medium from heated first heat transmission medium that can flow, be passed to the second heat that can flow heat transmission medium and can comprise substantially all latent heat (such as, heat of gasification).Such as, heat is being passed to second can flowing the process of heat transmission medium from heated first heat transmission medium that can flow, be passed to the latent heat that the second heat that can flow heat transmission medium can comprise the percentage ratio of any appropriate, according to appointment 60% to 100%, 70% to 100%, 80% to 100%, 90% to 100%, or about 60% or lower, or about 65%, 70,75,80,85,90,95,96,97,98% or about 99% or higher latent heat (such as, heat of gasification), and remaining part is sensible heat.

Accommodating the process of the parts of polymeric amide by heat from heated second at least one that can flow that heat transmission medium is passed to polymeric amide synthesis system, the heat transmission medium that can be able to flow heated second is condensed into liquid substantially.Such as, can be able to flow heated second substantially whole vapor condensation of heat transmission medium.Heat is being accommodated the process of the parts of polymeric amide from heated second at least one that can flow that heat transmission medium is passed to polymeric amide synthesis system, all latent heat (such as, heat of gasification) can be comprised substantially from the second heat that can flow heat transmission medium transmission.Heat is being accommodated the process of the parts of polymeric amide from heated second at least one that can flow that heat transmission medium is passed to polymeric amide synthesis system, the latent heat of the percentage ratio of any appropriate can be comprised from the second heat that can flow heat transmission medium transmission, according to appointment 60% to 100%, 70% to 100%, 80% to 100%, 90% to 100%, or about 60% or lower, or about 65%, 70,75,80,85,90,95,96,97,98% or about 99% or higher latent heat (such as, heat of gasification), and remaining part is sensible heat.

The method can comprise control second can flow heat transmission medium pressure and control heated second and can flow the pressure of heat transmission medium to control the second temperature that can flow heat transmission medium gasification, and control the heated second temperature that can flow heat transmission medium condensation.Second heat transmission medium and the second heated heat transmission medium can be arranged in the second heating circuit.Used second can be provided can to flow heat transmission medium from heated second can flow at least one parts that heat transmission medium is passed to polymeric amide synthesis system heat.The method can comprise heat transmission medium circulation of can flowing used second be back to from described heated first can flow heat transmission medium heat transmission in.

Control second can flow heat transmission medium pressure and control the second heated pressure that can flow heat transmission medium and can comprise pressure in control second heating circuit.Can be the pressure of any appropriate by pressure-controlling, 50KPa to 1 according to appointment, 000,000KPa, 100KPa to 500,000KPa, or 500KPa to 250,000KPa, or about 50KPa or lower, or about 100KPa, 500KPa, 1MPa, 2MPa, 3,4,5,6,7,8,9,10,12.5,15,17.5,20,25,30,35,40,45,50,60,70,80,90,100,125,150,175,200MPa or about 250MPa or higher.In some instances, temperature of saturation can be controlled the temperature for any appropriate, 100 DEG C to 500 DEG C according to appointment, 100 DEG C to 400 DEG C, 100 DEG C to 300 DEG C, 100 DEG C to 200 DEG C, 200 DEG C to 250 DEG C, 250 DEG C to 300 DEG C, 300 DEG C to 350 DEG C, 350 DEG C to 400 DEG C, 400 DEG C to 500 DEG C, 210 DEG C to 350 DEG C, or 260 DEG C to 300 DEG C, or about 100 DEG C or lower, or about 110 DEG C, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210, 220, 230, 240, 250, 260, 270, 280, 290, 300, 310, 320, 330, 340, 350, 360, 370, 380, 390 DEG C or about 400 DEG C or higher.Heated second can flow heat transmission medium top temperature can heated second can flow heat transmission medium temperature of saturation any appropriate within the scope of, as the about 0-100 DEG C of temperature of saturation of the heat transmission medium that can flow heated second, 0-60 DEG C, in the scope of about 0-40 DEG C, or about 0 DEG C, 1,2,3,4,5,10,15,20,25,30,35,40,50,60,70,80,90, or in the scope of about 100 DEG C.In each embodiment, in the example of gasification comprising the first heat transmission medium, first heat transmission medium and heated first that can flow can be controlled similarly and can flow the pressure of heat transmission medium to control the first temperature of saturation that can flow heat transmission medium.

At least one controlling that the second temperature and heated second that can flow heat transmission medium gasification can flow that the temperature (such as, temperature of saturation) of heat transmission medium condensation can control polymeric amide synthesis system accommodates the temperature of the parts of polymeric amide.Pass through control pressure, and the temperature of saturation of heat transmission medium thus control second can be flowed, at least one of polymeric amide synthesis system can be accommodated the temperature that the temperature control of the parts of polymeric amide is any appropriate, 100 DEG C to 500 DEG C according to appointment, 100 DEG C to 400 DEG C, 100 DEG C to 300 DEG C, 100 DEG C to 200 DEG C, 200 DEG C to 250 DEG C, 250 DEG C to 300 DEG C, 300 DEG C to 350 DEG C, 350 DEG C to 400 DEG C, 400 DEG C to 500 DEG C, 210 DEG C to 350 DEG C, or 260 DEG C to 300 DEG C, or about 100 DEG C or lower, or about 110 DEG C, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210, 220, 230, 240, 250, 260, 270, 280, 290, 300, 310, 320, 330, 340, 350, 360, 370, 380, 390 DEG C or about 400 DEG C or higher.

Second heat transmission medium and heated second heat transmission medium that can flow that can flow can have the vapour pressure of any appropriate independently, 50KPa to 1 according to appointment, 000,000KPa, 100KPa to 500,000KPa, or 500KPa to 250,000KPa, or about 50KPa or lower, or about 100KPa, 500KPa, 1MPa, 2MPa, 3,4,5,6,7,8,9,10,12.5,15,17.5,20,25,30,35,40,45,50,60,70,80,90,100,125,150,175,200MPa, or about 250MPa or higher.

Second heat transmission medium and heated second heat transmission medium that can flow that can flow can have the thermal capacitance of any appropriate.Such as, at about 100 DEG C or lower, or at about 110 DEG C, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210, 220, 230, 240, 250, 260, 270, 280, 290, 300, 310, 320, 330, 340, 350, 360, 370, 380, 390 DEG C, or at about 400 DEG C or higher, second heat transmission medium and heated second heat transmission medium that can flow that can flow can have about 0.2KJ/Kg DEG C to about 8.5KJ/Kg DEG C, about 1KJ/Kg DEG C to about 4KJ/Kg DEG C, about 0.2KJ/Kg DEG C or lower, or about 0.5KJ/Kg DEG C, 1, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3, 3.1, 3.2, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8KJ/Kg DEG C, or about 8.5KJ/Kg DEG C or higher thermal capacitance.

Heated first can flow heat transmission medium and heated second can flow heat transmission medium temperature between difference can be the difference of any appropriate; Such as, this difference can be about 0-300 DEG C, 0-200 DEG C, 0-100 DEG C, 0-60 DEG C, about 0-40 DEG C, or about 0 DEG C, 1,2,3,4,5,10,15,20,25,30,35,40,50,60,70,80,90,100,110,120,130,140,150,160,170,180,190,200,210,220,230,240,250,260,270,280,290 DEG C or about 300 DEG C or higher.First can flow heat transmission medium and heated first can flow heat transmission medium temperature between difference, and second can flow heat transmission medium and heated second can flow heat transmission medium temperature between difference, can be the difference of any appropriate; Such as, this difference can be about 0-300 DEG C independently, 0-200 DEG C, 0-100 DEG C, 0-60 DEG C, about 0-40 DEG C, or about 0 DEG C, 1,2,3,4,5,10,15,20,25,30,35,40,50,60,70,80,90,100,110,120,130,140,150,160,170,180,190,200,210,220,230,240,250,260,270,280,290 DEG C or about 300 DEG C or higher.

Second can flow heat transmission medium can with the rate loop of any appropriate, 1L/ minute to about 1 according to appointment, 000,000L/ minute, or about 10L/ minute to about 100,000L/ minutes, or about 1L/ minute or lower, 10L/ minute, 20,30,40,50,60,70,80,90,100,125,150,175,200,225,250,275,300,350,400,450,500,600,700,800,900,1,000,2,500,5,000,10,000,50,000,100,000,500,000 or about 1,000,000L/ minute or higher.

other flowed heat transmission medium

In the method, system or device, the heat trnasfer that can flow heat transmission medium from heated first second can be able to be flowed heat transmission medium to one or more than one.Such as, first heating circuit that can flow heat transmission medium containing first may be used for heating other the heating circuits multiple of heat transmission medium of can flowing containing second separately.In another example, may be used for heating containing the first first heating circuit that can flow heat transmission medium can flow containing second separately one or more second heating circuits of heat transmission medium and one or more 3rd heating circuits of the heat transmission medium that can flow containing the 3rd separately.

Heat is passed to second heat transmission medium that can flow used first can be provided can to flow heat transmission medium from heated first heat transmission medium that can flow.The method can comprise can flow heat transmission medium (such as by heat from used first, arranged in series) or heat transmission medium can be flowed (such as from heated first, arranged in parallel) be passed to the 3rd and can flow heat transmission medium, can to flow heat transmission medium to provide the heated 3rd.The method can comprise parts heat being accommodated polymeric amide from the heated the 3rd at least one that can flow that heat transmission medium is passed to polymeric amide synthesis system.3rd heat transmission medium that can flow can be the heat transmission medium of any appropriate described herein.3rd heat transmission medium that can flow can be identical from the second heat transmission medium or different.By heat from least one parts that the heated the 3rd can flow polymeric amide synthesis system that heat transmission medium is passed to can be from by heat from heated second can flow at least one parts of polymeric amide synthesis system that heat transmission medium is passed to identical or different.

polymeric amide

The polymeric amide prepared by described method, system or device can be the polymeric amide of any appropriate.Polymeric amide can be synthesized by the diamines of the dicarboxylic acid of straight chain and straight chain or be synthesized by the oligopolymer formed from the dicarboxylic acid of straight chain and the diamines of straight chain.Polymeric amide can be nylon-6,6.The polymeric amide that aftercondensated is crossed can produce with the speed of any appropriate, 1L/ minute to about 1 according to appointment, 000,000L/ minute, or about 10L/ minute to about 100,000L/ minutes, or about 1L/ minute or lower, 10L/ minute, 20,30,40,50,60,70,80,90,100,125,150,175,200,225,250,275,300,350,400,450,500,600,700,800,900,1,000,2,500,5,000,10,000,50,000,100,000,500,000 or about 1,000,000L/ minute or higher.

Dicarboxylic acid can be the dicarboxylic acid of any appropriate.Dicarboxylic acid can have structure HO C (O)-R ¹-C (O) OH, wherein R ¹c _1-c ₁₅alkylidene group, as methylene radical, ethylidene, propylidene, butylidene, pentylidene, hexylidene, sub-heptyl, octylene, nonamethylene or sub-decyl.Dicarboxylic acid can be hexanodioic acid (such as, R ¹=butylidene).

Diamines can be the diamines of any appropriate.Diamines can have structure H ₂n-R ²-NH ₂, wherein R ²c _1-c ₁₅alkylidene group, as methylene radical, ethylidene, propylidene, butylidene, pentylidene, hexylidene, sub-heptyl, octylene, nonamethylene or sub-decyl.Diamines can be hexamethylene-diamine, (such as, R ²=butylidene).

Embodiment

The utility model can be better understood by reference to the following instance provided by way of example.The utility model is not restricted to given example herein.In all of the embodiments illustrated, secondary heating circuit and one-level heating circuit are connected in parallel, but arranged in series and the combination with arranged in series arranged in parallel are also in the scope of embodiment of the present utility model.

embodiment 1a. comparative example. the liquid phase heat transmission medium in one-level heating circuit

Will 66 are heated to about 340 DEG C and cycle through nylon-6, the one-level heating circuit in 6 producing apparatuss.One-level heating circuit will 66, to circulate between the heat exchanger of suitable flow velocity on power house and vaporizer, reactor and finisher, afterwards will 66 transmission are back to power house for reheating.About 10,000,000L are used in one-level heating circuit 66. 66 remain liquid in whole technique.

At continuous nylon-6, in 6 manufacture method, hexanodioic acid and hexamethylene-diamine are mixed to be formed containing nylon-6 in water with about equimolar ratio, the water mixture of 6 salt, this water mixture has about 50 % by weight water.Salt brine solution is passed to vaporizer with about 105L/ minute.In one-level heating circuit by heat from 66 are passed to vaporizer, thus salt brine solution is heated to about 125-135 DEG C (130 DEG C) and is removed from heated salt brine solution by water by vaporizer, make water concentration reach about 30 % by weight.Salt mixture after evaporation is passed to reactor with about 75L/ minute.In one-level heating circuit by heat from 66 are passed to reactor, the temperature of the salt mixture after evaporating is reached about 218-250 DEG C (235 DEG C), makes reactor be removed from the salt mixture after heated evaporation by water further and salt is polymerized further and makes water concentration reach about 10 % by weight.The mixture of reaction is passed to flasher with about 60L/ minute.In one-level heating circuit by heat from 66 are passed to flasher, are heated to by the mixture of reaction about 270-290 DEG C (280 DEG C), make flasher remove water further from reaction mixture and the mixture reacted is polymerized further, thus making water concentration reach about 0.5 % by weight.Mixture after flash distillation is passed to finisher with about 54L/ minute; polyblend is made to experience vacuum to remove water further; water concentration is made to reach about 0.1 % by weight; to make polymeric amide obtain suitable final polymerization degree scope, afterwards the polyblend that aftercondensated is crossed is passed to forcing machine and tablets press.

Liquid 66 need large pump in whole one-level heating circuit, being circulated to all unit operations to provide material and being back to power house for reheating.As compared with the additive method being used in heat transfer process the heat transfer material experiencing phase transformation, every Kg's the 66 every KJ heat transmitted change total in the temperature of 66 is larger; Higher cycle rate in use heat exchanger and the larger surface-area for heat trnasfer are to complete the heat trnasfer of aequum.In addition, the precise temp of each unit operation is kept to be difficult, because the temperature of heat transmission medium only can be integrally-regulated and cannot regulate independent unit.

embodiment 1b. comparative example. the gas phase heat transmission medium in one-level heating circuit.

By Dowtherm ^tMa is steam at about 340 DEG C and about 400KPa pressure heating and cycles through nylon-6, power house in 6 producing apparatuss and the one-level heating circuit between multiple unit operation, at this, it transfers heat to multiple unit operation, transmits afterwards and is back to power house for reheating.The Dowtherm of about 10,000,000L is used in one-level heating circuit ^tMa.Dowtherm ^tMa remains steam in whole technique, and with enough rate loop, makes material not be reduced to down temperature of saturation in circulation.

As continuous nylon-6 is carried out in the description in embodiment 1a, 6 manufacture method, but steam Dowtherm is used in whole technique ^tMa.As with the process being used in heat trnasfer in experience other Measures compare of the heat transfer material of phase transformation, the Dowtherm of every Kg ^tMdowtherm when A transmits every KJ hot ^tMchange total in the temperature of A is larger; Use higher cycle rate and the larger surface-area for heat trnasfer to complete the heat trnasfer of aequum in a heat exchanger.In addition, the precise temp of each unit operation is kept to be difficult, because the temperature of heat transmission medium only can be integrally-regulated and cannot regulate independent unit.

embodiment 1c. comparative example. there is the volatility heat transmission medium in the one-level heating circuit of condensation

Provide embodiment 1b below, but use the Dowtherm with certain cycle rate ^tMa is to make in the process transferring heat to multiple unit operation from Dowtherm ^tMa absorbs enough heat, thus causes Dowtherm in one-level heating circuit ^tMthe partial condensation of A.For produced liquid circulation is back to power house to remaining unit operation, needs other equipment, comprise liquid separation tank, other pipe and pump and carry out reheating and regasifying to make condensation product be back to power house.The precise temp of each unit operation is kept to be difficult, because the temperature of heat transmission medium only can be integrally-regulated and cannot regulate independent unit.

embodiment 1d. comparative example. the volatility heat transmission medium in the one-level heating circuit leaked

Provide embodiment 1b below.

Occur leaking in one-level heating circuit.Owing to the high compressed steam used in one-level heating circuit, Dowtherm ^tMa steam is by leaking effusion, and the pressure throughout whole one-level heating circuit reduces.Owing to the size of one-level heating circuit, Pressure Drop be in systems in which low to moderate allow the level of the reduced rate leaked before the steam of large volume overflow from leak.Around leakage position and leakage, be included in the region having and be connected with the airspace fluid near leakage, the Dowtherm of effusion ^tMthere is burning or risk of explosion in A steam.In order to stop leaking, or extinguishing by leaking the burning caused, the whole one-level heating circuit in equipment must be closed.

embodiment 1e. comparative example. the volatility heat transmission medium in the one-level heating circuit leaked

Provide embodiment 1c below.

Occur leaking in one-level heating circuit.Owing to the high compressed steam used in one-level heating circuit, Dowtherm ^tMa steam overflows by leaking, thus reduces pressure in whole one-level heating circuit.Owing to the size of one-level heating circuit, before Pressure Drop is in systems in which low to moderate the level allowing the reduced rate leaked, the steam of large volume overflows from leakage.Around leakage position and leakage, be included in the region having and be connected with the airspace fluid near leakage, the Dowtherm of effusion ^tMthere is burning or risk of explosion in A steam.In order to stop leaking, or extinguishing because leakage causes burning, the whole one-level heating circuit in equipment must be closed.

embodiment 2a. has via in the one-level heating circuit of the vaporizer of secondary heating circuit heating, reactor and flasher 66

Will 66 are heated to about 340 DEG C and cycle through nylon-6, the one-level heating circuit in 6 producing apparatuss.One-level heating circuit will 66 heat exchangers on power house and secondary heating circuit, and circulate between heat exchanger on some independent unit operations.Secondary heating circuit contains Dowtherm ^tMa, and for heating fumigators, reactor and flasher.Regulate the pressure of secondary heating circuit to change Dowtherm independently ^tMthe gasification of A and condensing temperature, thus the temperature accurately controlling each concrete unit operation heated.One-level heating circuit is containing having an appointment 10,000,000L's 66, and each secondary heating circuit is containing the Dowtherm of 50, the 000L that has an appointment ^tMa.

At continuous nylon-6, in 6 manufacture method, hexanodioic acid and hexamethylene-diamine are combined to be formed containing nylon-6 with about equimolar ratio in water, 6 salt and there is the aqueous mixture of about 50 % by weight water.Salt brine solution is passed to vaporizer with about 105L/ minute.In for the secondary heating circuit of vaporizer by heat from Dowtherm ^tMa is passed to vaporizer, allows vaporizer salt brine solution be heated to about 125-135 DEG C (130 DEG C) and removed from heated salt brine solution by water, makes water concentration reach about 30 % by weight.The pressure of the secondary heating circuit on vaporizer is adjusted to about 1KPa to about 3KPa (2KPa), with by Dowtherm ^tMthe temperature of saturation of A is maintained at about 130 DEG C.The salt mixture of evaporation is passed to reactor with about 75L/ minute.In for the secondary heating circuit of reactor by heat from Dowtherm ^tMa is passed to reactor, the temperature of the salt mixture after evaporating is reached about 218-250 DEG C (235 DEG C), allow reactor to be removed by the salt mixture of water from heated evaporation further, make water concentration reach about 10 % by weight, and salt is polymerized further.The pressure of the secondary heating circuit on reactor is adjusted to about 28KPa to about 97KPa (80KPa), with by Dowtherm ^tMthe temperature of saturation of A is maintained at about 235 DEG C.The mixture of reaction is passed to flasher with about 60L/ minute.For in the secondary heating circuit of flasher, by heat from Dowtherm ^tMa is passed to flasher, is heated to by the mixture of reaction about 270-290 DEG C (280 DEG C), allows flasher to remove water further from reaction mixture, makes water concentration reach about 0.5 % by weight, and the mixture reacted is polymerized further.The pressure of the secondary heating circuit on flasher is adjusted to about 150KPa to about 200KPa (180KPa), with by Dowtherm ^tMthe temperature of saturation of A is maintained at about 280 DEG C.The mixture of flash distillation is passed to finisher with about 54L/ minute; polyblend is made to experience vacuum to remove water further; water concentration is made to reach about 0.1 % by weight; thus before the polyblend crossed by aftercondensated is passed to forcing machine and tablets press, polymeric amide obtains suitable final polymerization degree scope.

embodiment 2b. has via in the one-level heating circuit of the vaporizer of secondary heating circuit heating, reactor and flasher 66.

Will 66 are heated to about 340 DEG C and cycle through nylon-6, the one-level heating circuit in 6 producing apparatuss.One-level heating circuit will between 66 heat exchangers on power house and secondary heating circuit, and and some independent unit operations on heat exchanger between circulate.Secondary heating circuit contains Dowtherm ^tMa, and for heating fumigators, reactor and flasher.Regulate the pressure of secondary heating circuit to change Dowtherm independently ^tMthe gasification of A and condensing temperature, thus the temperature accurately controlling each concrete unit operation heated.One-level heating circuit is containing having an appointment 10,000,000L's 66, and each secondary heating circuit is containing the Dowtherm of 50, the 000L that has an appointment ^tMa.

At continuous nylon-6, in 6 manufacture method, hexanodioic acid and hexamethylene-diamine are combined to be formed containing nylon-6 with about equimolar ratio in water, 6 salt and there is the aqueous mixture of about 50 % by weight water.Salt brine solution is passed to vaporizer with about 105L/ minute.In for the secondary heating circuit of vaporizer by heat from Dowtherm ^tMa is passed to vaporizer, allows vaporizer salt brine solution be heated to about 125-135 DEG C (130 DEG C) and removed from heated salt brine solution by water, makes water concentration reach about 30 % by weight.The pressure of the secondary heating circuit on vaporizer is adjusted to about 1KPa to about 3KPa (2KPa), with by Dowtherm ^tMthe temperature of saturation of A is maintained at about 130 DEG C.Heat trnasfer between one-level heating circuit and secondary heating circuit, and the heat trnasfer mainly sensible heat between secondary heating circuit and vaporizer, and in for the secondary heating circuit of vaporizer Dowtherm ^tMthe temperature variation of A is no more than about about 15 DEG C of the temperature of saturation of about 130 DEG C.The salt mixture of evaporation is passed to reactor with about 75L/ minute.In for the secondary heating circuit of reactor by heat from Dowtherm ^tMa is passed to reactor, the temperature of the salt mixture evaporated is reached about 218-250 DEG C (235 DEG C), allow reactor to be removed by the salt mixture of water from heated evaporation further, make water concentration reach about 10 % by weight, and salt is polymerized further.The pressure of the secondary heating circuit on reactor is adjusted to about 28KPa to about 97KPa (80KPa), with by Dowtherm ^tMthe temperature of saturation of A is maintained at about 235 DEG C.Heat trnasfer between one-level heating circuit and secondary heating circuit, and the heat trnasfer mainly sensible heat between secondary heating circuit and reactor, and Dowtherm ^tMthe change of A in the secondary heating circuit for reactor in temperature is no more than about about 15 DEG C of the temperature of saturation of about 235 DEG C.The mixture of reaction is passed to flasher with about 60L/ minute.In for the secondary heating circuit of flasher by heat from Dowtherm ^tMa is passed to flasher, is heated to by the mixture of reaction about 270-290 DEG C (280 DEG C), allows flasher to remove water further from reaction mixture, makes water concentration reach about 0.5 % by weight, and the mixture reacted is polymerized further.The pressure of the secondary heating circuit on flasher is adjusted to about 150KPa to about 200KPa (180KPa), with by Dowtherm ^tM-the temperature of saturation of A is maintained at about 280 DEG C.Heat trnasfer between one-level heating circuit and secondary heating circuit, and the heat trnasfer mainly sensible heat between secondary heating circuit and flasher, and Dowtherm ^tMthe change of A in the secondary heating circuit for flasher in temperature is no more than about about 15 DEG C of the temperature of saturation of about 280 DEG C.The mixture of flash distillation is passed to finisher with about 54L/ minute; polyblend is made to experience vacuum to remove water further; water concentration is made to reach about 0.1 % by weight; to make before the polyblend crossed by aftercondensated is passed to forcing machine and tablets press, polymeric amide obtains suitable final polymerization degree scope.

in embodiment 2c. one-level heating circuit 66, there is the vaporizer, reactor and the flasher that heat via secondary heating circuit, have for the water in the secondary circuit of vaporizer.

Will 66 are heated to about 340 DEG C and cycle through nylon-6, the one-level heating circuit in 6 producing apparatuss.One-level heating circuit will between 66 heat exchangers on power house and secondary heating circuit, and and some independent unit operations on heat exchanger between circulate.Secondary heating circuit for reactor and flasher contains Dowtherm ^tMa.Secondary heating circuit for vaporizer contains water.Regulate the pressure of secondary heating circuit to change Dowtherm independently ^tMthe gasification of A or water and condensing temperature, accurately to control the temperature of heated each concrete unit operation.One-level heating circuit is containing having an appointment 10,000,000L's 66, and each secondary heating circuit is containing the Dowtherm of 50, the 000L that has an appointment ^tMa or water.

At continuous nylon-6, in 6 manufacture method, hexanodioic acid and hexamethylene-diamine are combined to be formed containing nylon-6 with about equimolar ratio in water, 6 salt and there is the aqueous mixture of about 50 % by weight water.Salt brine solution is passed to vaporizer with about 105L/ minute.By the Water transport of heat from the secondary heating circuit being used for vaporizer to vaporizer, allow vaporizer salt brine solution be heated to about 125-135 DEG C (130 DEG C) and removed from heated salt brine solution by water, make water concentration reach about 30 % by weight.The pressure of the secondary heating circuit on vaporizer is adjusted to about 270KPa so that water saturation temperature is maintained at about 130 DEG C.Heat trnasfer between one-level heating circuit and secondary heating circuit, and the heat trnasfer mainly sensible heat between secondary heating circuit and vaporizer, and in the secondary heating circuit for vaporizer water temperature on change be no more than about about 15 DEG C of the temperature of saturation of about 130 DEG C.The salt mixture of evaporation is passed to reactor with about 75L/ minute.In for the secondary heating circuit of reactor by heat from Dowtherm ^tMa is passed to reactor, the temperature of the salt mixture evaporated is reached about 218-250 DEG C (235 DEG C), allow reactor to be removed by the salt mixture of water from heated evaporation further, make water concentration reach about 10 % by weight, and salt is polymerized further.The pressure of the secondary heating circuit on reactor is adjusted to about 28KPa to about 97KPa (80KPa), with by Dowtherm ^tMthe temperature of saturation of A is maintained at about 235 DEG C.Heat trnasfer between one-level heating circuit and secondary heating circuit, and the heat trnasfer mainly sensible heat between secondary heating circuit and reactor, and for the Dowtherm in the secondary heating circuit of reactor ^tMchange in the temperature of A is no more than about about 15 DEG C of the temperature of saturation of about 235 DEG C.The mixture of reaction is passed to flasher with about 60L/ minute.In for the secondary heating circuit of flasher by heat from Dowtherm ^tMa is passed to flasher, is heated to by the mixture of reaction about 270-290 DEG C (280 DEG C), allows flasher to remove water further from reaction mixture, makes water concentration reach about 0.5 % by weight, and the mixture reacted is polymerized further.The pressure of the secondary heating circuit on flasher is adjusted to about 150KPa to about 200KPa (180KPa), with by Dowtherm ^tMthe temperature of saturation of A is maintained at about 280 DEG C.Heat trnasfer between one-level heating circuit and secondary heating circuit, and the heat trnasfer mainly sensible heat between secondary heating circuit and flasher, and in for the secondary heating circuit of flasher Dowtherm ^tMchange in the temperature of A is no more than about about 15 DEG C of the temperature of saturation of about 280 DEG C.The mixture of flash distillation is passed to finisher with about 54L/ minute; polyblend is made to experience vacuum to remove water further; water concentration is made to reach about 0.1 % by weight; to make before the polyblend crossed by aftercondensated is passed to forcing machine and tablets press, polymeric amide obtains suitable final polymerization degree scope.

in embodiment 3a. one-level heating circuit 66, have via secondary heating circuit heating vaporizer and via one-level heating circuit heating reactor and flasher.

Will 66 are heated to about 340 DEG C and cycle through nylon-6, the one-level heating circuit in 6 producing apparatuss.One-level heating circuit will circulate between 66 heat exchangers on power house and secondary heating circuit and the heat exchanger on some independent unit operations.Secondary heating circuit contains Dowtherm ^tMa, and for heating fumigators.Regulate the pressure of secondary heating circuit to change Dowtherm ^tMthe gasification of A and condensing temperature are accurately to control the temperature of vaporizer.One-level heating circuit is containing having an appointment 10,000,000L's 66, and secondary heating circuit is containing the Dowtherm of 50, the 000L that has an appointment ^tMa.

At continuous nylon-6, in 6 manufacture method, hexanodioic acid and hexamethylene-diamine are combined in water with about equimolar ratio, to be formed containing nylon-6,6 salt also have the aqueous mixture of the water concentration of about 50 % by weight.Salt brine solution is passed to vaporizer with about 105L/ minute.For in the secondary heating circuit of vaporizer, by heat from Dowtherm ^tMa is passed to vaporizer, allows vaporizer salt brine solution be heated to about 125-135 DEG C (130 DEG C) and removed from heated salt brine solution by water, makes water concentration reach about 30 % by weight.The pressure of the secondary heating circuit on vaporizer is adjusted to about 1KPa to about 3KPa (2KPa), with by Dowtherm ^tMthe temperature of saturation of A is maintained at about 130 DEG C.Heat trnasfer between one-level heating circuit and secondary heating circuit, and the heat trnasfer mainly sensible heat between secondary heating circuit and vaporizer, and in for the secondary heating circuit of vaporizer Dowtherm ^tMchange in the temperature of A is no more than about about 15 DEG C of the temperature of saturation of about 130 DEG C.The salt mixture of evaporation is passed to reactor with about 75L/ minute.In one-level heating circuit by heat from 66 are passed to reactor, the temperature of the salt mixture evaporated is reached about 218-250 DEG C (235 DEG C), allow reactor to be removed by the salt mixture of water from heated evaporation further, make water concentration reach about 10 % by weight, and salt is polymerized further.The mixture of reaction is passed to flasher with about 60L/ minute.In one-level heating circuit by heat from 66 are passed to flasher, are heated to by the mixture of reaction about 270-290 DEG C (280 DEG C), allow flasher to remove water further from reaction mixture, make water concentration reach about 0.5 % by weight, and the mixture reacted is polymerized further.The mixture of flash distillation is passed to finisher with about 54L/ minute; polyblend is made to experience vacuum to remove water further; water concentration is made to reach about 0.1 % by weight; to make before the polyblend crossed by aftercondensated is passed to forcing machine and tablets press, polymeric amide obtains suitable final polymerization degree scope.

in embodiment 3b. one-level heating circuit 66, have via secondary heating circuit heating vaporizer and via one-level heating circuit heating reactor and flasher.

Will 66 are heated to about 340 DEG C and cycle through nylon-6, the one-level heating circuit in 6 producing apparatuss.One-level heating circuit will circulate between 66 heat exchangers on power house and secondary heating circuit and the heat exchanger on some independent unit operations.The secondary heating circuit containing water is used to carry out heating fumigators.Regulate the pressure of secondary heating circuit to change gasification and the condensing temperature of water, accurately to control the temperature of vaporizer.One-level heating circuit is containing having an appointment 10,000,000L's 66, and secondary heating circuit is containing the water of 50, the 000L that has an appointment.

At continuous nylon-6, in 6 manufacture method, hexanodioic acid and hexamethylene-diamine are combined in water with about equimolar ratio, to be formed containing nylon-6,6 salt and there is the aqueous mixture of the water concentration of about 50 % by weight.Salt brine solution is passed to vaporizer with about 105L/ minute.In for the secondary heating circuit of vaporizer by heat from Dowtherm ^tMa is passed to vaporizer, allows vaporizer salt brine solution be heated to about 125-135 DEG C (130 DEG C) and removed from heated salt brine solution by water, makes water concentration reach about 30 % by weight.The pressure of the secondary heating circuit on vaporizer is adjusted to about 270KPa, so that water saturation temperature is maintained at about 130 DEG C.Heat trnasfer between one-level heating circuit and secondary heating circuit, and the heat trnasfer mainly sensible heat between secondary heating circuit and vaporizer, and in the secondary heating circuit for vaporizer water temperature on change be no more than about about 15 DEG C of the temperature of saturation of about 130 DEG C.The salt mixture of evaporation is passed to reactor with about 75L/ minute.In one-level heating circuit by heat from 66 are passed to reactor, the temperature of the salt mixture evaporated is reached about 218-250 DEG C (235 DEG C), allow reactor to be removed by the salt mixture of water from heated evaporation further, make water concentration reach about 10 % by weight, and salt is polymerized further.The mixture of reaction is passed to flasher with about 60L/ minute.In one-level heating circuit by heat from 66 are passed to flasher, are heated to by the mixture of reaction about 270-290 DEG C (280 DEG C), allow flasher to remove water further from reaction mixture, make water concentration reach about 0.5 % by weight, and the mixture reacted is polymerized further.The mixture of flash distillation is passed to finisher with about 54L/ minute; polyblend is made to experience vacuum to remove water further; water concentration is made to reach about 0.1 % by weight; thus making before the polyblend crossed by aftercondensated is passed to forcing machine and tablets press, polymeric amide obtains suitable final polymerization degree scope.

in embodiment 4. one-level heating circuit 66, have via secondary heating circuit heating reactor and via one-level heating circuit heating vaporizer and flasher.

Will 66 are heated to about 340 DEG C and cycle through nylon-6, the one-level heating circuit in 6 producing apparatuss.One-level heating circuit will circulate between 66 heat exchangers on power house and secondary heating circuit and the heat exchanger on some independent unit operations.Secondary heating circuit contains Dowtherm ^tMa, and for reactor heating.Regulate the pressure of secondary heating circuit to change Dowtherm ^tMthe gasification of A and condensing temperature, thus the temperature accurately controlling reactor.One-level heating circuit is containing having an appointment 10,000,000L's 66, and secondary heating circuit is containing the Dowtherm of 50, the 000L that has an appointment ^tMa.

At continuous nylon-6, in 6 manufacture method, hexanodioic acid and hexamethylene-diamine are combined in water with about equimolar ratio, to be formed containing nylon-6,6 salt and the aqueous mixture with about 50 % by weight water.Salt brine solution is passed to vaporizer with about 105L/ minute.In one-level heating circuit by heat from 66 are passed to vaporizer, allow vaporizer salt brine solution be heated to about 125-135 DEG C (130 DEG C) and removed from heated salt brine solution by water, make water concentration reach about 30 % by weight.The salt mixture of evaporation is passed to reactor with about 75L/ minute.In for the secondary heating circuit of reactor by heat from Dowtherm ^tMa is passed to reactor, the temperature of the salt mixture evaporated is reached about 218-250 DEG C (235 DEG C), allow reactor to be removed by the salt mixture of water from heated evaporation further, make water concentration reach about 10 % by weight, and salt is polymerized further.The pressure of the secondary heating circuit on reactor is adjusted to about 28KPa to about 97KPa (80KPa), with by Dowtherm ^tMthe temperature of saturation of A is maintained at about 235 DEG C.Heat trnasfer between one-level heating circuit and secondary heating circuit, and the heat trnasfer mainly sensible heat between secondary heating circuit and reactor, and in for the secondary heating circuit of reactor Dowtherm ^tMchange in the temperature of A is no more than about about 15 DEG C of the temperature of saturation of about 235 DEG C.The mixture of reaction is passed to flasher with about 60L/ minute.In one-level heating circuit by heat from 66 are passed to flasher, are heated to by the mixture of reaction about 270-290 DEG C (280 DEG C), allow flasher to remove water further from reaction mixture, make water concentration reach about 0.5 % by weight, and the mixture reacted is polymerized further.The mixture of flash distillation is passed to finisher with about 54L/ minute; polyblend is made to experience vacuum to remove water further; water concentration is made to reach about 0.1 % by weight; thus making before the polyblend crossed by aftercondensated is passed to forcing machine and tablets press, polymeric amide obtains suitable final polymerization degree scope.

in embodiment 5. one-level heating circuit 66, have via secondary heating circuit heating flasher and via one-level heating circuit heating vaporizer and reactor

Will 66 are heated to about 340 DEG C and cycle through nylon-6, the one-level heating circuit in 6 producing apparatuss.One-level heating circuit will circulate between 66 heat exchangers on power house and secondary heating circuit and the heat exchanger on some independent unit operations.Secondary heating circuit contains Dowtherm ^tMa, and for heating flash evaporation device.Regulate the pressure of secondary heating circuit to change Dowtherm ^tMthe gasification of A and condensing temperature, thus the temperature accurately controlling flasher.One-level heating circuit is containing having an appointment 10,000,000L's 66, and secondary heating circuit is containing the Dowtherm of 50, the 000L that has an appointment ^tMa.

At continuous nylon-6, in 6 manufacture method, hexanodioic acid and hexamethylene-diamine are combined in water with about equimolar ratio, to be formed containing nylon-6,6 salt and the aqueous mixture with about 50 % by weight water.Salt brine solution is passed to vaporizer with about 105L/ minute.In one-level heating circuit by heat from 66 are passed to vaporizer, allow vaporizer salt brine solution be heated to about 125-135 DEG C (130 DEG C) and removed from heated salt brine solution by water, make water concentration reach about 30 % by weight.The salt mixture of evaporation is passed to reactor with about 75L/ minute.In one-level heating circuit by heat from 66 are passed to reactor, the temperature of the salt mixture evaporated is reached about 218-250 DEG C (235 DEG C), allow reactor to be removed by the salt mixture of water from heated evaporation further, make water concentration reach about 10 % by weight, and salt is polymerized further.The mixture of reaction is passed to flasher with about 60L/ minute.In for the secondary heating circuit of flasher by heat from Dowtherm ^tMa is passed to flasher, is heated to by the mixture of reaction about 270-290 DEG C (280 DEG C), allows flasher to remove water further from reaction mixture, makes water concentration reach about 0.5 % by weight, and the mixture reacted is polymerized further.The pressure of the secondary heating circuit on flasher is adjusted to about 150KPa to about 200KPa (180KPa), with by Dowtherm ^tMthe temperature of saturation of A is maintained at about 280 DEG C.Heat trnasfer between one-level heating circuit and secondary heating circuit, and the heat trnasfer mainly sensible heat between secondary heating circuit and flasher, and in for the secondary heating circuit of flasher Dowtherm ^tMchange in the temperature of A is no more than about about 15 DEG C of the temperature of saturation of about 280 DEG C.The mixture of flash distillation is passed to finisher with about 54L/ minute; polyblend is made to experience vacuum to remove water further; water concentration is made to reach about 0.1 % by weight; thus making before the polyblend crossed by aftercondensated is passed to forcing machine and tablets press, polymeric amide obtains suitable final polymerization degree scope.

in embodiment 6. one-level heating circuit 66, there is the salt pond (salt strike) via the heating of secondary heating circuit and the salt vaporizer via the heating of one-level heating circuit, reactor and flasher.

Will 66 are heated to about 340 DEG C and cycle through nylon-6, the one-level heating circuit in 6 producing apparatuss.One-level heating circuit will circulate between 66 heat exchangers on power house and secondary heating circuit and the heat exchanger on some independent unit operations.Secondary heating circuit contains water, and for heating salt pond.Regulate the pressure of secondary heating circuit to change gasification and the condensing temperature of water, thus accurately control the temperature in salt pond.One-level heating circuit is containing having an appointment 10,000,000L's 66, and secondary heating circuit is containing the water of 50, the 000L that has an appointment.

At continuous nylon-6, in 6 manufacture method, hexanodioic acid and hexamethylene-diamine are combined in water with about equimolar ratio in salt pond, to be formed containing nylon-6,6 salt and there is the aqueous mixture of the water-content of about 50 % by weight.In for the secondary heating circuit in salt pond by heat from Water transport to salt pond, the temperature of aqueous mixture is reached about 50-100 DEG C (75 DEG C).The pressure of the secondary heating circuit on salt pond is adjusted to about 40KPa, so that water saturation temperature is maintained at about 75 DEG C.Heat trnasfer between one-level heating circuit and secondary heating circuit, and the heat trnasfer mainly sensible heat between secondary heating circuit and salt pond, and in the secondary heating circuit for salt pond water temperature on change be no more than about about 15 DEG C of the temperature of saturation of about 75 DEG C.Salt brine solution is passed to vaporizer with about 105L/ minute.In one-level heating circuit by heat from 66 are passed to vaporizer, allow vaporizer salt brine solution be heated to about 125-135 DEG C (130 DEG C) and removed from heated salt brine solution by water, make water concentration reach about 30 % by weight.The salt mixture of evaporation is passed to reactor with about 75L/ minute.In one-level heating circuit by heat from 66 are passed to reactor, the temperature of the salt mixture evaporated is reached about 218-250 DEG C (235 DEG C), allow reactor to be removed by the salt mixture of water from heated evaporation further, make water concentration reach about 10 % by weight, and salt is polymerized further.The mixture of reaction is passed to flasher with about 60L/ minute.In one-level heating circuit by heat from 66 are passed to flasher, are heated to by the mixture of reaction about 270-290 DEG C (280 DEG C), allow flasher to remove water further from reaction mixture, make water concentration reach about 0.5 % by weight, and the mixture reacted is polymerized further.The mixture of flash distillation is passed to finisher with about 54L/ minute; polyblend is made to experience vacuum to remove water further; water concentration is made to reach about 0.1 % by weight; thus making before the polyblend crossed by aftercondensated is passed to forcing machine and tablets press, polymeric amide obtains suitable final polymerization degree scope.

embodiment 7. batch processes, in one-level heating circuit 66, there is the autoclave via the heating of secondary heating circuit

Will 66 are heated to about 340 DEG C and cycle through nylon-6, the one-level heating circuit in 6 producing apparatuss.One-level heating circuit will circulate between 66 heat exchangers on power house and secondary heating circuit and the heat exchanger on some independent unit operations.Secondary heating circuit contains Dowtherm ^tMa, and for heating high-pressure still.Regulate the pressure of secondary heating circuit to change Dowtherm ^tMthe gasification of A and condensing temperature are to control the temperature of reactor.One-level heating circuit is containing having an appointment 10,000,000L's 66, and secondary heating circuit is containing the Dowtherm of 50, the 000L that has an appointment ^tMa.

At nylon-6 in batches, in 6 manufacture method, hexanodioic acid and hexamethylene-diamine are combined in water with about equimolar ratio, to be formed containing nylon-6,6 salt and there is the aqueous mixture of about 50 % by weight water.Salt brine solution is passed to vaporizer with about 105L/ minute.In one-level heating circuit by heat from 66 are passed to vaporizer, allow vaporizer salt brine solution be heated to about 125-135 DEG C (130 DEG C) and removed from heated salt brine solution by water, make water concentration reach about 30 % by weight.The salt mixture of evaporation is passed to autoclave with a collection of about 100,000L.In secondary heating circuit by heat from Dowtherm ^tMa is passed to reactor, the temperature of mixture is reached about 270-290 DEG C (280 DEG C), removes water from it, make water concentration reach about 0.1 % by weight, thus makes polymeric amide obtain suitable final polymerization degree scope.Pressure on secondary heating circuit on autoclave is adjusted to about 150KPa to about 200KPa (180KPa), with by Dowtherm ^tMthe temperature of saturation of A is maintained at about 280 DEG C.Heat trnasfer between one-level heating circuit and secondary heating circuit, and the heat trnasfer mainly sensible heat between secondary heating circuit and autoclave, and for the Dowtherm in the secondary heating circuit of autoclave ^tMthe temperature variation of A is no more than about about 15 DEG C of the temperature of saturation of about 280 DEG C.The polyblend crossed by aftercondensated is passed to forcing machine and tablets press.

in embodiment 8. one-level heating circuit 66, there is the vaporizer, reactor and the flasher that heat via secondary heating circuit, and have leakage in one-level heating circuit.

Provide embodiment 2a below.Occur leaking in one-level heating circuit, allow inclusion access arrangement environment.

Leave the liquid of leakage 66 are in relatively low pressure, thus total discharge of limiting material.Because the liquid be discharged 66 is nonvolatile comparatively speaking.The risk of blast is close to zero and the risk of burning is low, and is comprised in closest near leakage.

in embodiment 9. one-level heating circuit 66, there is the vaporizer, reactor and the flasher that heat via secondary heating circuit, in secondary heating circuit, there is leakage.

Provide embodiment 2a below.Occur in secondary heating circuit on an evaporator leaking.

As compared with embodiment 1d and 1e, in secondary heating circuit, use the volatility Dowtherm of more small volume ^tMa, it reduces the safety hazards relevant to using the high temperature combustible vapor of pressurization.The volume of less secondary heating circuit, as compared with the one-level heating circuit in embodiment 1d and 1e, limits the amount of occurred discharge.Most of heating system in equipment can operate continuously, simultaneously will containing Dowtherm ^tMthe secondary circuit of A closes to repair leakage or extinguish combustion.

The term adopted and expression are used as illustrative; and be unrestriced; and do not expect in the use of this term and expression and get rid of feature equivalent arbitrarily that is given and that describe or its part, but what recognize is that multiple to be modified in scope of the present utility model required for protection be possible.The modifications and variations of concept disclosed herein can be adopted by those skilled in the art, and this modifications and variations are considered to be in the scope of the present utility model as claims restriction.

statement of the present utility model.

The utility model provides at least the following statement, and its sequence number is not interpreted as the level providing importance:

Statement 1 provides a kind of method preparing polymeric amide, and described method comprises: the heat transmission medium that can flow first heats, and can to flow heat transmission medium to provide heated first; Heat is passed to second can flows heat transmission medium from described heated first heat transmission medium that can flow, can to flow heat transmission medium to provide heated second; With parts heat being accommodated polymeric amide from described heated second at least one that can flow that heat transmission medium is passed to polymeric amide synthesis system.

Statement 2 provides method described in statement 1, and wherein said polymeric amide synthesis system is by the dicarboxylic acid of straight chain and the diamines synthesizing polyamides of straight chain or the oligopolymer synthesizing polyamides that formed by the dicarboxylic acid of straight chain and the diamines of straight chain.

Statement 3 provides the method described in statement 2, and wherein said dicarboxylic acid has structure HO C (O)-R ¹-C (O) OH, wherein R ¹c ₁-C ₁₅alkylidene group.

Statement 4 provides the method described in statement 3, and wherein said dicarboxylic acid is hexanodioic acid.

Statement 5 provides the method described in any one in statement 2-4, and wherein said diamines has structure H ₂n-R ²-NH ₂, wherein R ²c ₁-C ₁₅alkylidene group.

Statement 6 provides the method described in statement 5, and wherein said diamines is hexamethylene-diamine.

Statement 7 provides the method described in any one in statement 2-6, and wherein said polymeric amide is nylon-6, and 6.

Statement 8 provides the method described in any one in statement 1-7, and at least one parts of wherein said polymeric amide synthesis system comprise at least one in pre-heaters, vaporizer, polymerization reactor, flasher, finisher and autoclave.

Statement 9 provides the method described in any one in statement 1-8, and wherein in standard temperature and pressure (STP), described first heat transmission medium that can flow has the low vapour pressure of the heat transmission medium that can to flow than described second.

Statement 10 provides the method described in any one in statement 1-9, and wherein said heated second heat transmission medium that can flow has the high vapour pressure of the heat transmission medium that can to flow than described heated first.

Statement 11 provides the method described in any one in statement 1-10, wherein said heated second can flow heat transmission medium be can flow than described heated first heat transmission medium more flammable and more inflammable at least one.

Statement 12 provides the method described in any one in statement 1-11, and wherein said first heat transmission medium that can flow comprises at least one item in the following: water, polyoxyethylene glycol, polypropylene glycol, mineral oil, silicone oil, phenyl ether and biphenyl.

Statement 13 provides the method described in any one in statement 1-12, and wherein said first heat transmission medium that can flow is at least one item in the following: trimethylpentane, C _10-13alkane, C _10-13isoalkane, C _14-30the benzene of alkylaryl compounds, diethylbenzene, vinylation, phenylcyclohexane, C _14-30the terphenyl of alkylbenzene, paraffin oil, ethyl diphenyl ethane, diphenylethane, diethyl diphenylethane, phenyl ether, phenyl ether, ethylbenzene polymkeric substance, biphenyl, inorganic salt, diisopropyl biphenyl, tri isopropyl biphenyl, methylcyclohexane, dicyclohexyl, terphenyl, hydrogenation, partially hydrogenated quaterphenyl, partially hydrogenated senior polyphenyl, phenyl ether and phenanthrene, biaryl compound, tri-aryl compounds, diaryl ether, triaryl ether, alkylaryl compounds, alkylaryl compounds and diaryl alkane based compound.

Statement 14 provides the method described in any one in statement 1-13, and wherein said heated first heat transmission medium that can flow is about 280 DEG C to about 400 DEG C.

Statement 15 provides the method described in any one in statement 1-14, and wherein said heated first heat transmission medium that can flow is about 330 DEG C to about 350 DEG C.

Statement 16 provides the method described in any one in statement 1-15, and wherein said first heat transmission medium and described heated first heat transmission medium that can flow that can flow is liquid phase substantially.

Statement 17 provides the method described in any one in statement 1-16, and wherein in the process that can flow heat transmission medium heating by described first, described first heat transmission medium that can flow remains liquid substantially.

Statement 18 provides the method described in any one in statement 1-17, wherein can flow in the heat-processed of heat transmission medium described first, does not substantially occur the described first gasification can flowing heat transmission medium.

Statement 19 provides the method described in any one in statement 1-18, wherein in the process that can flow heat transmission medium heating by described first, is passed to the described first heat that can flow heat transmission medium and comprises complete sensible heat substantially.

Statement 20 provides the method described in any one in statement 1-19, wherein heat is being passed to described second can flows the process of heat transmission medium from described heated first heat transmission medium that can flow, described heated first heat transmission medium that can flow remains liquid substantially.

Statement 21 provides the method described in any one in statement 1-20, wherein heat is being passed to described second can flowing the process of heat transmission medium from described heated first heat transmission medium that can flow, substantially do not occurring the described heated first condensation can flowing heat transmission medium.

Statement 22 provides the method described in any one in statement 1-21, wherein heat from described heated first can flow heat transmission medium to described second can flow heat transmission medium transmission process, comprise complete sensible heat substantially from described the first heated heat that can flow heat transmission medium transmission.

Statement 23 provides the method described in any one in statement 1-22, and wherein said first heat transmission medium and described heated first heat transmission medium that can flow that can flow is arranged in the first heating circuit.

Statement 24 provides the method described in any one in statement 1-23, wherein heat is passed to described second heat transmission medium that can flow and provides used first from described heated first heat transmission medium that can flow and can to flow heat transmission medium, described method also comprises heat transmission medium circulation of can flowing described used first and is back to the described first heating can flowing heat transmission medium.

Statement 25 provides the method described in any one in statement 1-24, and wherein said second heat transmission medium that can flow is at least one item in the following: water, polyoxyethylene glycol, polypropylene glycol, mineral oil, silicone oil, phenyl ether, biphenyl and terphenyl.

Statement 26 provides the method described in any one in statement 1-25, and wherein said second heat transmission medium that can flow is at least one item in the following: trimethylpentane, C _10-13alkane, C _10-13isoalkane, C _14-30the benzene of alkylaryl compounds, diethylbenzene, vinylation, phenylcyclohexane, C _14-30the terphenyl of alkylbenzene, paraffin oil, ethyl diphenyl ethane, diphenylethane, diethyl diphenylethane, phenyl ether, two phenoxy groups, ethylbenzene polymkeric substance, biphenyl, inorganic salt, diisopropyl biphenyl, tri isopropyl biphenyl, methylcyclohexane, dicyclohexyl, terphenyl, hydrogenation, partially hydrogenated quaterphenyl, partially hydrogenated more senior polyphenyl, phenyl ether and phenanthrene, biaryl compound, tri-aryl compounds, diaryl ether, triaryl ether, alkylaryl compounds, alkylaryl compounds and diaryl alkane based compound.

Statement 27 provides the method described in any one in statement 1-26, and wherein said heated second heat transmission medium that can flow is about 210 DEG C to about 350 DEG C.

Statement 28 provides the method described in any one in statement 1-27, and wherein said heated second heat transmission medium that can flow is about 260 DEG C to about 300 DEG C.

Statement 29 provides the method described in any one in statement 1-28, and wherein said heated second heat transmission medium that can flow is liquid phase substantially.

Statement 30 provides the method described in any one in statement 1-29, and wherein said heated second heat transmission medium that can flow is gas phase substantially.

Statement 31 provides the method described in any one in statement 1-30, wherein heat is being passed to described second can flows the process of heat transmission medium from described heated first heat transmission medium that can flow, described second heat transmission medium that can flow becomes gas substantially.

Statement 32 provides the method described in any one in statement 1-31, wherein heat is being passed to described second can flows the process of heat transmission medium from described heated first heat transmission medium that can flow, described second heat transmission medium that can flow is all gasifications substantially.

Statement 33 provides method described in statement 32, described method also to comprise to control described second can flow the pressure of heat transmission medium with the temperature of the heat transmission medium gasification that controls can to flow described second.

Statement 34 provides the method described in statement 33, wherein said second heat transmission medium and described the second heated heat transmission medium are arranged in the second heating circuit, wherein control the described second pressure that can flow heat transmission medium and comprise the pressure controlled in described second heating circuit.

Statement 35 provides the method described in any one in statement 33-34, wherein controls the described second temperature that can flow heat transmission medium gasification and controls the temperature that at least one of described polymeric amide synthesis system accommodates the parts of polymeric amide.

Statement 36 provides the method described in any one in statement 1-35, wherein heat is being passed to described second can flowing the process of heat transmission medium from described heated first heat transmission medium that can flow, be passed to the described second heat that can flow heat transmission medium and comprise substantially whole latent heat, described latent heat comprises heat of gasification.

Statement 37 provides the method described in any one in statement 1-36, wherein heat is being passed to described second can flowing the process of heat transmission medium from described heated first heat transmission medium that can flow, be passed to the described second heat that can flow heat transmission medium to comprise: the latent heat comprising heat of gasification of about 70-100%, and about 0-30% sensible heat.

Statement 38 provides the method described in any one in statement 1-37, wherein accommodating the process of the parts of polymeric amide by heat from described heated second at least one that can flow that heat transmission medium is passed to described polymeric amide synthesis system, described heated second heat transmission medium that can flow is condensed into liquid substantially.

Statement 39 provides method described in statement 38, described method also to comprise to control the described heated second pressure that can flow heat transmission medium to experience the temperature of at least part of condensation to regulate described heated second heat transmission medium that can flow.

Statement 40 provides method described in statement 39, wherein controls the described heated second can flow temperature that heat transmission medium experiences at least part of condensation and controls the temperature that at least one of described polymeric amide synthesis system accommodates the parts of polymeric amide.

Statement 41 provides the method described in any one in statement 39-40, wherein said second heat transmission medium and described the second heated heat transmission medium are arranged in the second heating circuit, wherein control described the second heated pressure that can flow heat transmission medium and comprise the pressure controlled in described second heating circuit.

The temperature of saturation that statement 42 provides method described in statement 41, the pressure wherein controlled in described second heating circuit to comprise to control described heated second can flow heat transmission medium.

Statement 43 provides method described in statement 42, wherein said heated second can flow heat transmission medium maximum temperature described heated second can flow heat transmission medium temperature of saturation the scope of about 0-40 DEG C in.

Statement 44 provides the method described in any one in statement 1-43, wherein heat is being accommodated the process of the parts of polymeric amide from described heated second at least one that can flow that heat transmission medium is passed to described polymeric amide synthesis system, comprise substantially whole latent heat from described the second heated heat that can flow heat transmission medium transmission, described latent heat comprises heat of gasification.

Statement 45 provides the method described in any one in statement 1-44, wherein heat is being accommodated the process of the parts of polymeric amide from described heated second at least one that can flow that heat transmission medium is passed to described polymeric amide synthesis system, comprise from the described second heat that can flow heat transmission medium transmission: about 70-100% comprises the latent heat of heat of gasification, and about 0-30% sensible heat.

Statement 46 provides the method described in any one in statement 1-45, wherein heat is provided used second can to flow heat transmission medium from described heated second can flow at least one parts that heat transmission medium is passed to described polymeric amide synthesis system, described method also comprise heat transmission medium circulation of can flowing described used second be back to from described heated first can flow heat transmission medium heat transmission in.

Statement 47 provides the method described in any one in statement 1-46, wherein heat is comprised from described heated second can flow at least one parts that heat transmission medium is passed to described polymeric amide synthesis system the temperature of at least one parts of described polymeric amide synthesis system is maintained at about 150 DEG C to about 350 DEG C.

Statement 48 provides the method described in any one in statement 1-47, wherein heat is comprised from described heated second can flow at least one parts that heat transmission medium is passed to described polymeric amide synthesis system the temperature of at least one parts of described polymeric amide synthesis system is maintained at about 210 DEG C to about 260 DEG C.

Statement 49 provides the method described in any one in statement 1-48, wherein heat is comprised from described heated second can flow at least one parts that heat transmission medium is passed to described polymeric amide synthesis system the temperature of polyamide compound reactor is maintained at about 218 DEG C to about 250 DEG C.

Statement 50 provides the method described in any one in statement 1-49, wherein heat is passed to described second heat transmission medium that can flow and provides used first from described heated first heat transmission medium that can flow and can to flow heat transmission medium, described method also comprises and heat can be flowed heat transmission medium or be passed to the 3rd can flow heat transmission medium from described heated first heat transmission medium that can flow from described used first, can to flow heat transmission medium to provide the heated 3rd; With parts heat being accommodated polymeric amide from the described heated 3rd at least one that can flow that heat transmission medium is passed to described polymeric amide synthesis system.

Statement 51 provides method described in statement 50, wherein heat can be flowed at least one parts of described polymeric amide synthesis system that heat transmission medium is passed to from heat is different from described heated second can flow at least one parts of described polymeric amide synthesis system that heat transmission medium is passed to from the described heated 3rd.

Statement 52 provides one to prepare nylon-6, the method for 6, and described method comprises: the heat transmission medium that can flow comprise terphenyl first heats, and can to flow heat transmission medium to provide heated first, heat is passed to and comprises second of phenyl ether and biphenyl from described heated first heat transmission medium that can flow and can to flow heat transmission medium, can to flow heat transmission medium to provide heated second heat transmission medium and used first that can flow, wherein said first can flow heat transmission medium, described heated first heat transmission medium and described used first heat transmission medium that can flow that can flow is arranged in the first heating circuit, heat transmission medium heating and heat is passed to described second can flows the process of heat transmission medium from described heated first heat transmission medium that can flow can flowed by described first, described first can flow heat transmission medium, described heated first heat transmission medium and described used first heat transmission medium that can flow that can flow is liquid phase substantially, be passed to described first can flow heat transmission medium heat and comprise complete sensible heat substantially from the described first heat that can flow heat transmission medium transmission, and heat is being passed to described second can flowing the process of heat transmission medium from described heated first heat transmission medium that can flow, described second heat transmission medium that can flow all is gasified substantially, the heat transmission medium that can flow described used first circulation is back to the described first heating can flowing heat transmission medium, heat is passed to from described heated second heat transmission medium that can flow the nylon-6 comprising the following, at least one parts of 6 synthesis systems: pre-heaters, vaporizer, polymerization reactor, flasher, finisher or autoclave, there is provided used second can to flow heat transmission medium, wherein said second heat transmission medium and described heated second heat transmission medium that can flow that can flow is arranged in the second heating circuit, described second heat transmission medium and described used second heat transmission medium that can flow that can flow is liquid phase substantially, described heated second heat transmission medium that can flow is liquid phase substantially, and be passed to described second can flow heat transmission medium heat and comprise the latent heat (comprising heat of gasification) of about 70-100% from the described second heat that can flow heat transmission medium transmission, and about 0-30% sensible heat, the pressure controlling described second heat transfer circuit, to control the described second temperature of saturation that can flow heat transmission medium, wherein controls temperature of saturation and controls the temperature that at least one of described polymeric amide synthesis system accommodates the parts of polymeric amide, with heat transmission medium circulation of can flowing described used second be back to from described heated first can flow heat transmission medium heat transmission in.

Statement 53 provides a kind of system for the preparation of polymeric amide, and described system comprises: well heater, and described heater configuration can to flow heat transmission medium to provide heated first for heat transmission medium heating of can flowing first; First heat exchanger, described first heat exchanger arrangement is for flowing heat transmission medium from the described heated first heat transmission medium transmission heat that can flow to provide heated second; With the second heat exchanger, described second heat exchanger arrangement is parts heat being accommodated polymeric amide from described heated second at least one that can flow that heat transmission medium is passed to polymeric amide synthesis system.

Statement 54 provides a kind of device for the preparation of polymeric amide, and described device comprises: well heater, and described heater configuration can to flow heat transmission medium to provide heated first for heating first heat transmission medium that can flow; First heat exchanger, described first heat exchanger arrangement is for flowing heat transmission medium from the described heated first heat transmission medium transmission heat that can flow to provide heated second; With the second heat exchanger, described second heat exchanger arrangement is parts heat being accommodated polymeric amide from described heated second at least one that can flow that heat transmission medium is passed to polymeric amide synthesis system.

Statement 55 provides device described in statement 54, the wherein said device for the preparation of polymeric amide to be configured to by the diamines synthesizing polyamides of the dicarboxylic acid of straight chain and straight chain or the oligopolymer synthesizing polyamides that formed by the dicarboxylic acid of straight chain and the diamines of straight chain.

Statement 56 provides the device described in statement 55, and wherein said dicarboxylic acid has structure HO C (O)-R ¹-C (O) OH, wherein R ¹c _1-c ₁₅alkylidene group.

Statement 57 provides the device described in statement 56, and wherein said dicarboxylic acid is hexanodioic acid.

Statement 58 provides the device described in any one in statement 55-56, and wherein said diamines has structure H ₂n-R ²-NH ₂, wherein R ²c ₁-C ₁₅alkylidene group.

Statement 59 provides the device described in statement 58, and wherein said diamines is hexamethylene-diamine.

Statement 60 provides the method described in any one in statement 55-59, and wherein said polymeric amide is nylon-6, and 6.

Statement 61 provides the device described in any one in statement 54-60, and the parts that at least one of wherein said polymeric amide synthesis system accommodates polymeric amide comprise at least one in pre-heaters, vaporizer, polymerization reactor, flasher, finisher and autoclave.

Statement 62 provides the device described in any one in statement 54-61, and wherein in standard temperature and pressure (STP), described first heat transmission medium that can flow has the low vapour pressure of the heat transmission medium that can to flow than described second.

Statement 63 provides the device described in any one in statement 54-62, and wherein said heated second heat transmission medium that can flow has the high vapour pressure of the heat transmission medium that can to flow than described heated first.

Statement 64 provides the device described in any one in statement 54-63, wherein said heated second can flow heat transmission medium be can flow than described heated first heat transmission medium more flammable and more inflammable at least one.

Statement 65 provides the device described in any one in statement 54-64, and wherein said first heat transmission medium that can flow comprises at least one item in the following: water, polyoxyethylene glycol, polypropylene glycol, mineral oil, silicone oil, phenyl ether and biphenyl.

Statement 66 provides the device described in any one in statement 54-65, and wherein said first heat transmission medium that can flow is at least one item in the following: trimethylpentane, C _10-13alkane, C _10-13isoalkane, C _14-30the benzene of alkylaryl compounds, diethylbenzene, vinylation, phenylcyclohexane, C _14-30the terphenyl of alkylbenzene, paraffin oil, ethyl diphenyl ethane, diphenylethane, diethyl diphenylethane, phenyl ether, diphenyloxide, ethylbenzene polymkeric substance, biphenyl, inorganic salt, diisopropyl biphenyl, tri isopropyl biphenyl, methylcyclohexane, dicyclohexyl, terphenyl, hydrogenation, partially hydrogenated quaterphenyl, partially hydrogenated more senior polyphenyl, phenyl ether and phenanthrene, biaryl compound, tri-aryl compounds, diaryl ether, triaryl ether, alkylaryl compounds, alkylaryl compounds and diaryl alkane based compound.

Statement 67 provides the device described in any one in statement 54-66, and wherein said heated first heat transmission medium that can flow is about 280 DEG C to about 400 DEG C.

Statement 68 provides the device described in any one in statement 54-67, and wherein said heated first heat transmission medium that can flow is about 330 DEG C to about 350 DEG C.

Statement 69 provides the device described in any one in statement 54-68, and wherein said first heat transmission medium and described heated first heat transmission medium that can flow that can flow is liquid phase substantially.

Statement 70 provides the device described in any one in statement 54-69, and wherein in the process that can flow heat transmission medium heating by described first, described first heat transmission medium that can flow remains liquid substantially.

Statement 71 provides the device described in any one in statement 54-70, wherein in the process that can flow heat transmission medium heating by described first, does not substantially occur the described first gasification can flowing heat transmission medium.

Statement 72 provides the device described in any one in statement 54-71, wherein in the process that can flow heat transmission medium heating by described first, is passed to the described first heat that can flow heat transmission medium and comprises complete sensible heat substantially.

Statement 73 provides the device described in any one in statement 54-72, wherein heat is being passed to described second can flows the process of heat transmission medium from described heated first heat transmission medium that can flow, described heated first heat transmission medium that can flow remains liquid substantially.

Statement 74 provides the device described in any one in statement 54-73, wherein heat is being passed to described second can flowing the process of heat transmission medium from described heated first heat transmission medium that can flow, substantially do not occurring the described heated first condensation can flowing heat transmission medium.

Statement 75 provides the device described in any one in statement 54-74, wherein heat is passed to described second can flows the process of heat transmission medium from described heated first heat transmission medium that can flow, comprise complete sensible heat substantially from described the first heated heat that can flow heat transmission medium transmission.

Statement 76 provides the device described in any one in statement 54-75, and wherein said first heat transmission medium and described heated first heat transmission medium that can flow that can flow is arranged in the first heating circuit.

Statement 77 provides the device described in any one in statement 54-76, wherein heat is passed to described second heat transmission medium that can flow and provides used first from described heated first heat transmission medium that can flow and can to flow heat transmission medium, described method also comprises heat transmission medium circulation of can flowing described used first and is back to the described first heating can flowing heat transmission medium.

Statement 78 provides the device described in any one in statement 54-77, and wherein said second heat transmission medium that can flow is at least one item in the following: water, polyoxyethylene glycol, polypropylene glycol, mineral oil, silicone oil, phenyl ether, biphenyl and terphenyl.

Statement 79 provides the device described in any one in statement 54-78, and wherein said second heat transmission medium that can flow is at least one item in the following: trimethylpentane, C _10-13alkane, C _10-13isoalkane, C _14-30the benzene of alkylaryl compounds, diethylbenzene, vinylation, phenylcyclohexane, C _14-30the terphenyl of alkylbenzene, paraffin oil, ethyl diphenyl ethane, diphenylethane, diethyl diphenylethane, phenyl ether, diphenyloxide, ethylbenzene polymkeric substance, biphenyl, inorganic salt, diisopropyl biphenyl, tri isopropyl biphenyl, methylcyclohexane, dicyclohexyl, terphenyl, hydrogenation, partially hydrogenated quaterphenyl, partially hydrogenated more senior polyphenyl, phenyl ether and phenanthrene, biaryl compound, tri-aryl compounds, diaryl ether, triaryl ether, alkylaryl compounds, alkylaryl compounds and diaryl alkane based compound.

Statement 80 provides the device described in any one in statement 54-79, and wherein said heated second heat transmission medium that can flow is about 210 DEG C to about 350 DEG C.

Statement 81 provides the device described in any one in statement 54-80, and wherein said heated second heat transmission medium that can flow is about 260 DEG C to about 300 DEG C.

Statement 82 provides the device described in any one in statement 54-81, and wherein said heated second heat transmission medium that can flow is liquid phase substantially.

Statement 83 provides the device described in any one in statement 54-82, and wherein said heated second heat transmission medium that can flow is gas phase substantially.

Statement 84 provides the device described in any one in statement 54-83, wherein heat is being passed to described second can flows the process of heat transmission medium from described heated first heat transmission medium that can flow, described second heat transmission medium that can flow becomes gas substantially.

Statement 85 provides the device described in any one in statement 54-84, wherein heat is being passed to described second can flows the process of heat transmission medium from described heated first heat transmission medium that can flow, described second heat transmission medium that can flow all is gasified substantially.

Statement 86 provides the device described in any one in statement 1-85, and wherein said second heat transmission medium and described the second heated heat transmission medium are arranged in the second heating circuit.

Statement 87 provides device described in statement 86, wherein said second heating circuit to be configured to control the described second pressure that can flow heat transmission medium, thus controls the described second temperature that can flow heat transmission medium gasification.

Statement 88 provides device described in statement 87, is wherein accommodated the temperature of the parts of polymeric amide by least one controlling that the described second temperature that can flow heat transmission medium gasification controls described polymeric amide synthesis system.

Statement 89 provides the device described in any one in statement 54-88, wherein heat is being passed to described second can flowing the process of heat transmission medium from described heated first heat transmission medium that can flow, be passed to the described second heat that can flow heat transmission medium and comprise substantially whole latent heat, described latent heat comprises heat of gasification.

Statement 90 provides the device described in any one in statement 54-89, wherein heat is being passed to described second can flowing the process of heat transmission medium from described heated first heat transmission medium that can flow, be passed to the described second heat that can flow heat transmission medium to comprise: the latent heat comprising heat of gasification of about 70-100%, and about 0-30% sensible heat.

Statement 91 provides the device described in any one in statement 54-90, wherein accommodating the process of the parts of polymeric amide by heat from described heated second at least one that can flow that heat transmission medium is passed to described polymeric amide synthesis system, described heated second heat transmission medium that can flow is condensed into liquid substantially.

Statement 92 provides the device described in any one in statement 54-91, and wherein said second heat transmission medium and described the second heated heat transmission medium are arranged in the second heating circuit.

Statement 93 provides device described in statement 92, wherein said second heating circuit to be configured to control pressure in described second heating circuit with the temperature regulating described heated second can flow the described at least part of condensation of heat transmission medium experience.

Statement 94 provides device described in statement 93, wherein accommodates the temperature of the parts of polymeric amide by controlling described heated second at least one that can flow that temperature that heat transmission medium experiences at least part of condensation controls described polymeric amide synthesis system.

Statement 95 provides the device described in any one in statement 93-94, and the pressure wherein controlled in described second heating circuit comprises and controls the described heated second temperature of saturation that can flow heat transmission medium.

Statement 96 provides device described in statement 95, wherein said heated second can flow heat transmission medium top temperature described heated second can flow heat transmission medium temperature of saturation the scope of about 0-40 DEG C in.

Statement 97 provides the device described in any one in statement 54-96, wherein heat is being accommodated the process of the parts of polymeric amide from described heated second at least one that can flow that heat transmission medium is passed to described polymeric amide synthesis system, comprise substantially whole latent heat from described the second heated heat that can flow heat transmission medium transmission, described latent heat comprises heat of gasification.

Statement 98 provides the device described in any one in statement 54-97, wherein heat is being accommodated the process of the parts of polymeric amide from described heated second at least one that can flow that heat transmission medium is passed to described polymeric amide synthesis system, comprise from the described second heat that can flow heat transmission medium transmission: the latent heat comprising heat of gasification of about 70-100%, and about 0-30% sensible heat.

Statement 99 provides the device described in any one in statement 54-98, wherein heat is provided used second can to flow heat transmission medium from described heated second can flow at least one parts that heat transmission medium is passed to described polymeric amide synthesis system, described method also comprise heat transmission medium circulation of can flowing described used second be back to from described heated first can flow heat transmission medium heat transmission in.

Statement 100 provides the device described in any one in statement 54-99, wherein heat is comprised from described heated second can flow at least one parts that heat transmission medium is passed to described polymeric amide synthesis system the temperature of at least one parts of described polymeric amide synthesis system is maintained at about 150 DEG C to about 350 DEG C.

Statement 101 provides the device described in any one in statement 54-100, wherein heat is comprised from described heated second can flow at least one parts that heat transmission medium is passed to described polymeric amide synthesis system the temperature of at least one parts of described polymeric amide synthesis system is maintained at about 210 DEG C to about 260 DEG C.

Statement 102 provides the device described in any one in statement 54-101, wherein heat is comprised from described heated second can flow at least one parts that heat transmission medium is passed to described polymeric amide synthesis system the temperature of polyamide compound reactor is maintained at about 218 DEG C to about 250 DEG C.

Statement 103 provides the device described in any one in statement 54-102, wherein heat is passed to described second heat transmission medium that can flow and provides used first from described heated first heat transmission medium that can flow and can to flow heat transmission medium, wherein said second heat exchanger arrangement is heat can be flowed heat transmission medium or be passed to the 3rd can flow heat transmission medium from described heated first heat transmission medium that can flow from described used first, can to flow heat transmission medium to provide the heated 3rd, described device also comprises the 3rd heat exchanger, described 3rd heat exchanger arrangement is parts heat being accommodated polymeric amide from the described heated 3rd at least one that can flow that heat transmission medium is passed to described polymeric amide synthesis system.

Statement 104 provides device described in statement 103, wherein heat can be flowed at least one parts of described polymeric amide synthesis system that heat transmission medium is passed to from heat is different from described heated second can flow at least one parts of described polymeric amide synthesis system that heat transmission medium is passed to from the described heated 3rd.

Statement 105 provides one to prepare nylon-6, the method for 6, and described method comprises: well heater, and described heater configuration is heat transmission medium heating of can flowing comprise terphenyl first, can to flow heat transmission medium to provide heated first, first heat exchanger, described first heat exchanger arrangement is heat be passed to and comprise second of phenyl ether and biphenyl from described heated first heat transmission medium that can flow and can to flow heat transmission medium, can to flow heat transmission medium to provide heated second heat transmission medium and used first that can flow, and the heat transmission medium that can flow described used first circulation is back to described first heat exchanger, wherein first can flow heat transmission medium, described heated first heat transmission medium and described used first heat transmission medium that can flow that can flow is arranged in the first heating circuit, heat transmission medium heating and heat is passed to described second can flows the process of heat transmission medium from described heated first heat transmission medium that can flow can flowed by described first, described first can flow heat transmission medium, described heated first heat transmission medium and described used first heat transmission medium that can flow that can flow is liquid phase substantially, be passed to described first can flow heat transmission medium heat and comprise complete sensible heat substantially from the described first heat that can flow heat transmission medium transmission, and heat is being passed to described second can flowing the process of heat transmission medium from described heated first heat transmission medium that can flow, described second heat transmission medium that can flow all is gasified substantially, and second heat exchanger, described second heat exchanger arrangement is that heat is passed to from described heated second heat transmission medium that can flow the nylon-6 comprising the following, at least one parts of 6 synthesis systems: pre-heaters, vaporizer, polymerization reactor, flasher, finisher or autoclave, there is provided used second can to flow heat transmission medium, and the heat transmission medium that can flow described used second circulation be back to from described heated first can flow heat transmission medium heat transmission in, wherein second heat transmission medium and described heated second heat transmission medium that can flow that can flow is arranged in the second heating circuit, described second heating circuit is configured to control the described second temperature of saturation that can flow heat transmission medium, at least one wherein controlling that temperature of saturation controls described polymeric amide synthesis system accommodates the temperature of the parts of polymeric amide, described second heat transmission medium and described use second heat transmission medium that can flow that can flow is liquid phase substantially, described heated second heat transmission medium that can flow is liquid phase substantially, and be passed to described second can flow heat transmission medium heat and comprise the latent heat (described latent heat comprises heat of gasification) of about 70-100% from the described second heat that can flow heat transmission medium transmission, and about 0-30% sensible heat.

Statement 106 provides the device of any one or the arbitrary combination described in statement 1-105 or method, and described device or method are optionally configured to make described all elements or option can be used for using or selecting.

Claims

1., for the preparation of the well heater in the device of polymeric amide and a heat exchanger system, described system comprises:

2. system according to claim 1, the wherein said device for the preparation of polymeric amide is configured to by the diamines synthesizing polyamides of the dicarboxylic acid of straight chain and straight chain or the oligopolymer synthesizing polyamides that formed by the dicarboxylic acid of straight chain and the diamines of straight chain.

3. system according to claim 2, wherein said dicarboxylic acid has structure HO C (O)-R ¹-C (O) OH, wherein R ¹c ₁-C ₁₅alkylidene group.

4. system according to claim 3, wherein said dicarboxylic acid is hexanodioic acid.

5. system according to claim 2, wherein said diamines has structure H ₂n-R ²-NH ₂, wherein R ²c ₁-C ₁₅alkylidene group.

6. system according to claim 5, wherein said diamines is hexamethylene-diamine.

7. system according to claim 2, wherein said polymeric amide is nylon-6,6.

8. system according to claim 1, at least one parts accommodating polymeric amide described of wherein said polymeric amide synthesis system comprise at least one in pre-heaters, vaporizer, polymerization reactor, flasher, finisher and autoclave.

9. system according to claim 1, wherein in standard temperature and pressure (STP), described first heat transmission medium that can flow has the low vapour pressure of the heat transmission medium that can to flow than described second.

10. system according to claim 1, wherein said heated second heat transmission medium that can flow has the high vapour pressure of the heat transmission medium that can to flow than described heated first.

11. systems according to claim 1, wherein said heated second can flow heat transmission medium be can flow than described heated first heat transmission medium more flammable and more inflammable at least one.

12. systems according to claim 1, wherein said heated first heat transmission medium that can flow is 280 DEG C to 400 DEG C.

13. systems according to claim 1, wherein said heated first heat transmission medium that can flow is 330 DEG C to 350 DEG C.

14. systems according to claim 1, wherein said first heat transmission medium and described heated first heat transmission medium that can flow that can flow is liquid phase substantially.

15. systems according to claim 1, wherein in the process that can flow heat transmission medium heating by described first, described first heat transmission medium that can flow remains liquid substantially.

16. systems according to claim 1, wherein can flow in the heat-processed of heat transmission medium described first, substantially do not occur the described first gasification can flowing heat transmission medium.

17. systems according to claim 1, wherein in the process that can flow heat transmission medium heating by described first, are passed to the described first heat that can flow heat transmission medium and comprise complete sensible heat substantially.

18. systems according to claim 1, wherein heat is being passed to described second can flows the process of heat transmission medium from described heated first heat transmission medium that can flow, described heated first heat transmission medium that can flow remains liquid substantially.

19. systems according to claim 1, wherein heat is being passed to described second can flowing the process of heat transmission medium from described heated first heat transmission medium that can flow, substantially do not occurring the described heated first condensation can flowing heat transmission medium.

20. systems according to claim 1, wherein be passed to described second in heat can flow the process of heat transmission medium from described heated first heat transmission medium that can flow, comprise complete sensible heat substantially from described the first heated heat that can flow heat transmission medium transmission.

21. systems according to claim 1, wherein said first heat transmission medium and described heated first heat transmission medium that can flow that can flow is arranged in the first heating circuit.

22. systems according to claim 1, are wherein passed to described second heat transmission medium that can flow by heat and provide used first from described heated first heat transmission medium that can flow and can to flow heat transmission medium.

23. systems according to claim 1, wherein said heated second heat transmission medium that can flow is 210 DEG C to 350 DEG C.

24. systems according to claim 1, wherein said heated second heat transmission medium that can flow is 260 DEG C to 300 DEG C.

25. systems according to claim 1, wherein said heated second heat transmission medium that can flow is liquid phase substantially.

26. systems according to claim 1, wherein said heated second heat transmission medium that can flow is gas phase substantially.

27. systems according to claim 1, are wherein being passed to described second by heat can flowing the process of heat transmission medium from described heated first heat transmission mediums that can flow, and described second heat transmission medium that can flow becomes gas substantially.

28. systems according to claim 1, are wherein being passed to described second by heat can flowing the process of heat transmission medium from described heated first heat transmission mediums that can flow, and described second heat transmission medium that can flow is all gasifications substantially.

29. systems according to claim 1, wherein said second heat transmission medium and described the second heated heat transmission medium are arranged in the second heating circuit.

30. systems according to claim 29, wherein said second heating circuit is configured to control described second can flow the pressure of heat transmission medium with the temperature of the heat transmission medium gasification that controls can to flow described second.

31. systems according to claim 30, at least one wherein controlling described polymeric amide synthesis system by the temperature of the heat transmission medium gasification that controls can to flow described second accommodates the temperature of the parts of polymeric amide.

32. systems according to claim 1, wherein heat is being passed to described second can flowing the process of heat transmission medium from described heated first heat transmission medium that can flow, be passed to the described second heat that can flow heat transmission medium and comprise substantially whole latent heat, described latent heat comprises heat of gasification.

33. systems according to claim 1, wherein heat is being passed to described second can flowing the process of heat transmission medium from described heated first heat transmission medium that can flow, described described second heat that can flow heat transmission medium that is passed to comprises: the latent heat comprising heat of gasification of 70-100%, and 0-30% sensible heat.

34. systems according to claim 1, wherein accommodating the process of the parts of polymeric amide by heat from described heated second at least one that can flow that heat transmission medium is passed to described polymeric amide synthesis system, heated second heat transmission medium that can flow is condensed into liquid substantially.

35. systems according to claim 1, wherein said second heat transmission medium and described the second heated heat transmission medium are arranged in the second heating circuit.

36. systems according to claim 35, wherein said second heating circuit is configured to control the described heated second pressure that can flow heat transmission medium, experiences the temperature of at least part of condensation to regulate described heated second heat transmission medium that can flow.

37. systems according to claim 36, wherein accommodate the temperature of the parts of polymeric amide by controlling described heated second at least one that can flow that temperature that heat transmission medium experiences at least part of condensation controls described polymeric amide synthesis system.

38. systems according to claim 36, the pressure wherein controlled in described second heating circuit comprises and controls the described heated second temperature of saturation that can flow heat transmission medium.

39. according to system according to claim 38, wherein said heated second can flow heat transmission medium top temperature heated second can flow heat transmission medium temperature of saturation the scope of 0-40 DEG C in.

40. systems according to claim 1, wherein heat is being accommodated the process of the parts of polymeric amide from described heated second at least one that can flow that heat transmission medium is passed to described polymeric amide synthesis system, comprise substantially whole latent heat from described the second heated heat that can flow heat transmission medium transmission, described latent heat comprises heat of gasification.

41. systems according to claim 1, wherein heat is being accommodated the process of the parts of polymeric amide from described heated second at least one that can flow that heat transmission medium is passed to described polymeric amide synthesis system, comprise from the described second heat that can flow heat transmission medium transmission: the latent heat comprising heat of gasification of 70-100%, and 0-30% sensible heat.

42. systems according to claim 1, wherein provide used second by heat can to flow heat transmission medium from described heated second can flow at least one parts that heat transmission medium is passed to described polymeric amide synthesis system.

43. systems according to claim 1, wherein comprise by heat from heated second heat transmission medium at least one parts be passed to described polymeric amide synthesis system that can flow the temperature of at least one parts of described polymeric amide synthesis system are remained on 150 DEG C to 350 DEG C.

44. systems according to claim 1, wherein comprise by heat from described heated second can flow at least one parts that heat transmission medium is passed to described polymeric amide synthesis system the temperature of at least one parts of described polymeric amide synthesis system are remained on 210 DEG C to 260 DEG C.

45. systems according to claim 1, wherein comprise by heat from described heated second can flow at least one parts that heat transmission medium is passed to described polymeric amide synthesis system the temperature of the polyamide compound reactor are remained on 218 DEG C to 250 DEG C.

46. systems according to claim 1, wherein heat is passed to described second heat transmission medium that can flow and provides used first from heated first heat transmission medium that can flow and can to flow heat transmission medium, wherein said second heat exchanger arrangement is heat can be flowed heat transmission medium or be passed to the 3rd can flow heat transmission medium from described heated first heat transmission medium that can flow from described used first, can to flow heat transmission medium to provide the heated 3rd; Described device also comprises:

3rd heat exchanger, described 3rd heat exchanger arrangement is parts heat being accommodated polymeric amide from the heated the 3rd at least one that can flow that heat transmission medium is passed to described polymeric amide synthesis system.

47. system according to claim 46, be wherein from heat is different from described heated second can flow at least one parts of described polymeric amide synthesis system that heat transmission medium is passed to by heat from least one parts that the described heated 3rd can flow described polymeric amide synthesis system that heat transmission medium is passed to.

48. 1 kinds for the preparation of nylon-6, the well heater in the device of 6 and heat exchanger system, described system comprises: