TWM507303U - System and apparatus for making polyamides having multiple heat-transfer media - Google Patents

Abstract

The present invention relates to a system and apparatus for making a polyamide having at least two heat-transfer media, which includes: a heater configured to heat a first flowable heat-transfer medium to provide a heated first flowable heat-transfer medium; a first heat exchanger configured to transfer heat from the heated first flowable heat-transfer medium to provide a heated second flowable heat-transfer medium. The system and apparatus can also include a second heat exchanger configured to transfer heat from the heated second flowable heat-transfer medium to at least one polyamide-containing component of a polyamide synthesis system.

Description

System and device for preparing polyamines with multiple heat transfer media Cross-reference to related applications

The present application claims priority to U.S. Provisional Patent Application Serial No. 61/8,197, filed on Jan. 1, the entire entire entire entire entire entire entire entire entire content

Polyamide has suitable properties that make it suitable for use in a variety of environments, such as extreme durability and strength. Polyamines such as nylon, aromatic polyamines and poly(aspartic acid) sodium are commonly used, for example, in carpets, air bags, machine parts, clothing, ropes and hoses. Nylon-6,6 (a silky thermoplastic) is one of the most commonly used polyamines. Nylon-6,6's long molecular chain and dense structure make it suitable for high-quality nylon fibers, which exhibit high mechanical strength, hardness and stability upon heating.

Polyamines are commercially synthesized in large scale production facilities. For example, nylon-6,6 can be synthesized by subjecting hexamethylenediamine to adipic acid to undergo a condensation reaction to form a guanamine linkage and releasing water. In a series of assemblies including autoclaves or reactors, flashers, and finishing machines, heat is applied to the reaction mixture and water is gradually removed to drive equilibrium to the polyamine until the polymer reaches the desired length range. The molten nylon-6,6 is then extruded into pellets which can be spun into fibers or processed into other shapes. A large amount of heating is required throughout the production facility to allow the condensation reaction to occur and remove water from the reaction mixture. The central heating device typically heats a single heating ring filled with a volatile heat transfer medium to vaporize the medium and then cycle through the entire plant to Various components that require heating.

In methods and apparatus for polyamine synthesis, there is a safety risk associated with the use of large amounts of volatile materials as heat transfer media, and there are efficiency losses and inconveniences associated with the use of a single plant-wide heating ring to heat a plurality of components of a plant. problem. As explained herein, this creation provides a solution to these problems.

This work can provide a method for preparing polyamine. The method can include heating the first flowable heat transfer medium to provide a heated first flowable heat transfer medium. The method can include transferring heat from the heated first flowable heat transfer medium to the second flowable heat transfer medium to provide a heated second flowable heat transfer medium. The method can also include transferring heat from the heated second flowable heat transfer medium to at least one polyamine-containing component of the polyamine synthesis system.

This work provides a method for preparing nylon-6,6. The method can include heating a first flowable heat transfer medium comprising terphenyl to provide a heated first flowable heat transfer medium. The method can include transferring heat from the heated first flowable heat transfer medium to a second flowable heat transfer medium comprising diphenyl oxide and biphenyl to provide a heated second flowable heat transfer medium and using the first Flowable heat transfer medium. The first flowable heat transfer medium, the heated first flowable heat transfer medium, and the used first flowable heat transfer medium can be disposed in the first heating ring. During heating the first flowable heat transfer medium and transferring heat from the heated first flowable heat transfer medium to the second flowable heat transfer medium, the first flowable heat transfer medium, the heated first flowable heat transfer medium, and the used The first flowable heat transfer medium can be substantially liquid phase. The heat transferred to the first flowable heat transfer medium and the heat conducted from the first flowable heat transfer medium may include substantially all of the sensible heat. The second flowable heat transfer medium may be substantially completely vaporized during heat transfer from the heated first flowable heat transfer medium to the second flowable heat transfer medium. The method can include circulating the used first flowable heat transfer medium back to the first flowable heat transfer medium for heating in. The method can include transferring heat from the heated second flowable heat transfer medium to at least one component of a nylon-6,6 synthesis system comprising a preheater, an evaporator, a polymerization reactor, a flasher, a finishing machine, or an autoclave. Providing a second flowable heat transfer medium that has been used. The second flowable heat transfer medium and the heated second flowable heat transfer medium can be disposed in the second heating ring. The second flowable heat transfer medium and the second flowable heat transfer medium used may be substantially liquid phase. The heated second flowable heat transfer medium can be substantially liquid phase. The heat transferred to the second flowable heat transfer medium and the heat conducted from the second flowable heat transfer medium may include about 70-100% latent heat (including heat of vaporization) and about 0-30% sensible heat. The method can also include controlling the pressure of the second heat transfer ring to control the saturation temperature of the second flowable heat transfer medium, wherein controlling the saturation temperature controls the temperature of the at least one polyamine containing component of the polyamide synthesis system. The method can also include recycling the used second flowable heat transfer medium back to the heat transfer from the heated first flowable heat transfer medium.

This creation provides a system for preparing polyamines. The system can include a heater configured to heat the first flowable heat transfer medium to provide a heated first flowable heat transfer medium. The system can include a first heat exchanger configured to transfer heat from the heated first flowable heat transfer medium to provide a heated second flowable heat transfer medium. The system can also include a second heat exchanger configured to transfer heat from the heated second flowable heat transfer medium to the at least one polyamine-containing component of the polyamide synthesis system.

The present invention provides a device for preparing polyamine. The apparatus can include a heater configured to heat the first flowable thermally conductive medium to provide a heated first flowable thermally conductive medium. The apparatus can include a first heat exchanger configured to transfer heat from the heated first flowable heat transfer medium to provide a heated second flowable heat transfer medium. The apparatus can also include a second heat exchanger configured to transfer heat from the heated second flowable heat transfer medium to the at least one polyamine-containing component of the polyamide synthesis system.

This creation provides a means for preparing nylon-6,6. The apparatus can include a heater configured to heat a first flowable heat transfer medium comprising terphenyl to provide a heated first flowable heat transfer medium. The apparatus can include a first heat exchanger configured to transfer heat from the heated first flowable heat transfer medium to a second flowable heat transfer medium comprising diphenyl oxide and biphenyl to provide heating The second flowable heat transfer medium and the used first flowable heat transfer medium circulate the used first flowable heat transfer medium back to the first heat exchanger. The first flowable heat transfer medium, the heated first flowable heat transfer medium, and the used first flowable heat transfer medium can be disposed in the first heating ring. During heating the first flowable heat transfer medium and transferring heat from the heated first flowable heat transfer medium to the second flowable heat transfer medium, the first flowable heat transfer medium, the heated first flowable heat transfer medium, and the used The first flowable heat transfer medium is substantially in the liquid phase. The heat transferred to the first flowable heat transfer medium and the heat conducted from the first flowable heat transfer medium may include substantially all of the sensible heat. The second flowable heat transfer medium may be substantially completely vaporized during heat transfer from the heated first flowable heat transfer medium to the second flowable heat transfer medium. The apparatus can include a second heat exchanger configured to pass from the heated second flowable heat transfer medium to a preheater, evaporator, polymerization reactor, flasher, finishing machine or autoclave Heat transfer of at least one component of the nylon-6,6 synthesis system to provide a second flowable heat transfer medium that has been used, and to recycle the used second flowable heat transfer medium back to the first from the heated The heat transfer medium transfers heat. The second flowable heat transfer medium and the heated second flowable heat transfer medium can be disposed in the second heating ring, which can be configured to control the pressure of the second heat transfer ring to control saturation of the second flowable heat transfer medium The temperature at which the saturation temperature is controlled controls the temperature of at least one polyamine-containing component of the polyamine synthesis system. The second flowable heat transfer medium and the used second flowable heat transfer medium can each be substantially a liquid phase, and the heated second flowable heat transfer medium can be substantially a liquid phase. The heat transferred to the second flowable heat transfer medium and the heat conducted from the second flowable heat conductive medium may be It includes about 70-100% of latent heat (including heat of vaporization) and about 0-30% of sensible heat.

This creation may provide advantages over other methods, systems, and devices for preparing polyamines, at least some of which are unexpected. If a leak occurs in the primary heating ring containing a volatile (eg, gaseous) heat transfer medium, the leaked material can diffuse into the entire space around the leak. If the volatile heat transfer medium is flammable, the leak may cause an explosion or fire hazard in the entire space surrounding the leak. In addition, the misty heat transfer medium can pose a safety risk in the immediate vicinity of the leak. If there is a loophole that allows the polymeric material to enter the primary heating loop, the formation of coke in the furnace used to heat the primary heating loop can create a significant risk of ignition. A primary heating ring containing a non-volatile heat transfer medium (eg, a liquid) can be safer than a heating ring containing a volatile heat transfer medium and can provide a much smaller inventory of hazardous volatile heat transfer media at the factory. In the event of a vulnerability, non-volatile leakage materials typically move to the ground around the leak, limiting any ignition and safety risks primarily to areas near and below the leak and present a lower explosion risk than volatile materials. If there is a hole in the polymer material that can enter the primary heating ring, the risk of fire from the coke tube in the heater can be significantly less.

Because of the use of a sensible heat self-heating ring to transfer heat to a particular component, a single or secondary heating ring containing a non-volatile material can experience localized high temperatures, which can make heating of the control component difficult. The disadvantages associated with the use of non-volatile materials in the heating ring used to heat the equipment components can be avoided by using various embodiments of the present invention: one or more secondary heatings each for heating one or more components Volatile materials are used in the ring (for example, at temperatures and pressures used, the material is substantially vaporized by heating and condensed after cooling) while using a primary heating ring containing a non-volatile heat transfer medium (eg, at the temperature and pressure used) The material is still liquid when heated and after cooling to heat the secondary heating ring. The secondary ring can primarily use latent heat (eg, heat of vaporization) for heating various components to transfer heat to the assembly, advantageously making it easier to control temperature while avoiding the use of large amounts of volatile materials and avoiding the use of a single heating ring to heat all Component.

Use a primary ring with a lower volatility heat transfer medium (heating for various components) The secondary ring with a higher volatility heat transfer medium can create a loop in the heating ring to make individual components easier to fix. For example, if a loop occurs in a single heating loop in which a fumed heat-conducting material is used to heat several components around the plant, the entire loop must be closed to repair the loophole or extinguish the fire fed by the loophole, causing most of the plant to go offline. This can be inconvenient and expensive. however. By containing a haze-like heat-conducting material in the secondary ring unique to one or more specific components, the loophole in the secondary ring only needs to be repaired, and the rest of the plant can continue to function normally. In various examples, the safety risks associated with the use of volatile heat conductive materials can be reduced by using a non-volatile heat transfer medium in the primary ring and by avoiding the use of large amounts of volatile flammable heat transfer media. For example, a hole in a large primary ring containing a liquid phase heat conductive material may be less harmful than a hole in a large ring containing a misty heat conductive material.

The use of a single ring of thermally conductive material limits the temperature of the material used to transfer heat to a narrow temperature range. The use of a secondary ring having a volatile heat transfer medium therein for individual components allows for easy control of the temperature of the heat transfer medium. The primary ring can be used to vaporize volatile materials in the secondary ring that can condense to transfer heat to individual components of the plant. The pressure in the secondary ring can be adjusted to control the saturation temperature of the heat transfer medium, thereby precisely controlling the temperature at which the volatile heat transfer medium in the secondary ring vaporizes and condenses, providing a temperature for the factory components to provide a polyamine Greater control of methods, systems, and devices. When a plurality of secondary rings (each containing a volatile heat transfer medium) are employed, the saturation temperature of the heat transfer medium in each of the secondary rings can be easily controlled.

The use of a single ring having a volatile heat conducting material (vapor phase/gas phase) may involve initially heating the thermally conductive material just above the temperature at which each component of the plant is used. This can cause the thermally conductive material to overheat (eg, to reach a temperature above the saturation temperature at a given pressure). If strict temperature control is required, removing the overheating to achieve temperature uniformity requires additional complexity. In various embodiments, the secondary ring may allow for the use of a thermally conductive material at or near the saturation temperature in the secondary ring, thereby achieving a high temperature in the case of less complex equipment. Uniformity. In various embodiments, the use of saturated steam against superheated vapor can be more effective for heat transfer. If the vapor is significantly overheated, the vapor is first cooled to a saturation temperature and then condensed. Superheated vapor has a much lower thermal conductivity than condensed vapor. In various embodiments, the use of a thermally conductive material in the form of a saturated vapor that has less superheat than other methods or devices can provide more heat transfer to a given surface area or achieve the same amount of heat transfer for less surface area. In various embodiments, the use of a low volatility liquid in the primary heating loop and the use of condensed vapor in the secondary loop may result in a smaller heat transfer area (process vessel size), such as in a processed portion having high heat requirements.

10‧‧‧Systems or devices for the preparation of polyamines

15‧‧‧heater

20‧‧‧First flowable heat transfer medium

21‧‧‧Systems or devices for the preparation of polyamines

25‧‧‧Primary heating ring

30‧‧‧The first flowable heat transfer medium heated

35‧‧‧First heat exchanger

36‧‧‧ Third heat exchanger

40‧‧‧Second flowable heat transfer medium

41‧‧‧Second flowable heat transfer medium

45‧‧‧secondary heating ring

46‧‧‧secondary heating ring

50‧‧‧heated second flowable heat transfer medium

51‧‧‧heated second flowable heat transfer medium

55‧‧‧second heat exchanger

56‧‧‧fourth heat exchanger

In the figures (not necessarily drawn to scale), the same numbers in several figures depict substantially similar components. The same numbers with different letter prefixes represent different situations of substantially similar components. The drawings generally illustrate various embodiments discussed in this document by way of example and not limitation.

Figure 1 illustrates a system or apparatus in accordance with various embodiments.

2 illustrates a system or apparatus in accordance with various embodiments.

Reference will now be made in detail to the preferred embodiments embodiments It is to be understood that the subject matter of the invention is not to be construed as limited

The values expressed in a range format are to be construed as being in a limited manner, and are not intended to For example, the range of "about 0.1% to about 5%" or "about 0.1% to 5%" should be interpreted to include not only about 0.1% to about 5%, but also individual values within the specified range (for example, 1%). , 2%, 3%, and 4%) and sub-ranges (eg, 0.1% to 0.5%, 1.1% to 2.2%, 3.3% to 4.4%). Statement unless otherwise indicated "About X to Y" has the same meaning as "about X to about Y". Also, unless otherwise indicated, the statement "about X, Y or about Z" has the same meaning as "about X, about Y or about Z".

In this document, the terms "a" or "an" are used to include one or more unless the context clearly indicates otherwise. Unless otherwise indicated, the term "or" is used to mean a non-exclusive "or". In addition, it should be understood that the phrase or terminology used herein is for the purpose of description and not limitation. Any use of chapter headings is intended to aid in reading the literature and should not be construed as limiting; information relating to chapter headings may appear within or outside of a particular section. In addition, all publications, patents, and patent documents mentioned in this specification are hereby incorporated by reference in their entirety in their entirety in their entirety herein In the event of inconsistent usage between this document and the documents incorporated by reference, the use in the combined reference should be considered as a supplement to the usage in this document; for contradictions that cannot be coordinated, in this document The usage level.

In the manufacturing methods described herein, the steps may be performed in any order without departing from the principles of the present invention, unless a temporary or operational sequence is explicitly recited. In addition, the prescribed steps can be performed simultaneously, unless it is explicitly claimed that the language statement is performed independently. For example, the proposition step of performing X and the proclaiming step of performing Y can be performed simultaneously within a single operation, and the resulting method will be within the scope of the claimed method.

The term "about" as used herein may allow a certain value or degree of variation, for example, within 10%, within 5%, or within 1% of the stated value or the stated range.

The term "substantially" as used herein refers to most or most, such as at least about 50%, 60%, 70%, 80%, 90%, 95%, 96%, 97%, 98%, 99%, 99.5%, 99.9%, 99.99% or at least about 99.999% or more.

The term "solvent" as used herein refers to a liquid that dissolves a solid, liquid or gas. Non-limiting examples of solvents are polyoxo, organic compounds, water, alcohols, ionic liquids, and supercritical fluids.

The term "standard temperature and pressure" as used herein means 0 ° C and 100 KPa.

The term "polymer" as used herein may include a copolymer.

The term "heat exchanger" as used herein refers to a device for transferring heat from one medium to another. The medium can be separated by a solid wall. Examples of heat exchangers include shell and tube exchangers, plate heat exchangers, plate and shell heat exchangers, insulated wheel heat exchangers, plate fin heat exchangers, pillow plate heat exchangers, fluid heat exchangers, waste heat recovery The device, the dynamic scratch surface heat exchanger and the phase change heat exchanger.

As used herein, the term "sensible heat" refers to the heat exchanged by a host or thermodynamic system, wherein the effect of the exchange is essentially a change in temperature of the host or system with little phase change.

The term "latent heat" as used herein refers to heat exchanged by a host or a thermodynamic system, wherein the effect of the exchange is essentially a phase change of the host or system with little change in temperature.

The term "relative viscosity" (RV) as used herein refers to the ratio of solution to solvent viscosity as measured by capillary viscosity at 25 °C. In one example, ASTM D789-06 RV is a viscosity of 8.4% by weight of a solution of polyamidamine in 90% formic acid (90% by weight formic acid and 10% by weight water) at 25 ° C (in centipoise) and separately The ratio of the viscosity (in centipoise) of 90% formic acid at 25 °C.

As used herein, the term "saturation temperature" refers to the temperature at which a liquid boils at a particular pressure (saturation pressure at that temperature) to its vapor phase and at which the vapor begins to condense into its liquid phase. At a saturation temperature of a material at a particular pressure, the material will condense as the temperature decreases or the pressure increases. At a saturation temperature of a material at a particular pressure, as the temperature increases or the pressure decreases, the material will boil to its vapor phase.

The present invention relates to methods, systems, and devices for preparing polyamines having at least two thermally conductive media.

Method for preparing polyamine

The method can include heating the first flowable heat transfer medium to provide a heated first flowable heat transfer medium. Heating can be carried out in any suitable manner. Available in heat exchanger Heating is performed, such as any suitable heat exchanger. The first flowable heat transfer medium can be located in the heating ring. The first flowable heat transfer medium can be heated in the power chamber or central heating zone of the apparatus and can be used to transfer heat from the primary heating loop to the one or more secondary heating loops throughout the apparatus, after which it is returned to the power chamber for reheating. The secondary heating ring can be used to heat one or more individual components of the device. The first flowable heat transfer medium can be non-volatile such that the first flowable heat transfer medium can be substantially liquid phase before and after heating.

The primary heating ring and the one or more secondary heating rings can have any suitable volume relative to each other. The primary heating ring can have a larger volume than the secondary heating ring. The primary heating ring can have substantially the same volume or a smaller volume than the secondary heating ring. The primary heating ring may have a volume of from about 0.0001% to 1,000,000% of the secondary heating ring, or from about 0.1% to about 1,000%, from about 1% to about 100%, from about 100% to 1,000,000% of the secondary heating ring, about 1,000% to 1,000,000%, or about 0.0001% or 0.0001% or less, 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 1,000,000% or more than 1,000,000% by volume. The first flowable heat transfer medium and the heated first flowable heat transfer medium can have any suitable mass ratio to the second flowable heat transfer medium and the heated second flowable heat transfer medium. For example, the ratio of the mass combination of the first flowable heat transfer medium to the heated first flowable heat transfer medium to the mass combination of the second flowable heat transfer medium and the heated second flowable heat transfer medium can be about 0.0000001: 1 to about 10,000,000: 1, about 100:1 to about 100:1, about 0.0000001:1 or 0.0000001:1 or less, or about 0.0001:1, 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 10,000,000: 1 or 10,000,000: 1 or more.

The method can include transferring heat from the heated first flowable heat transfer medium to the second flowable heat transfer medium to provide a heated second flowable heat transfer medium. Heating can be carried out in any suitable manner. Heating can be carried out in a heat exchanger, such as any suitable heat exchanger. The second flowable heat transfer medium can be sufficiently volatile such that it can be heated to a substantially gaseous phase by the first flowable heat transfer medium and such that one or more of the second flowable heat transfer medium can be heated from the device The component is condensed into a substantially liquid phase during heat transfer.

The first flowable heat transfer medium can retain liquid during heating and heat transfer, while the second flowable heat transfer medium can evaporate as it heats up and can condense as it heat transfers. The first flowable heat transfer medium may have a lower vapor pressure than the second flowable heat transfer medium at standard temperature and pressure; or the first flowable heat transfer medium may have a higher vapor pressure than the second flowable heat transfer medium. The pressure of the second flowable heat transfer medium can be controlled to vaporize and condense at the desired temperature. Since the first flowable heat transfer medium can retain the liquid after being heated, and the second flowable heat transfer medium can substantially evaporate after heating, the heated second flowable heat transfer medium can be compared to the heated first flowable heat transfer medium Has a higher vapor pressure.

Both the first flowable heat transfer medium and the second flowable heat transfer medium may be flammable organic materials, or both may include a combustible organic component. Vapor and high vapor pressure combustible organic materials are generally associated with greater risk of ignition and combustion than liquid flammable organic compounds having lower vapor pressures. The heated second flowable heat transfer medium can be at least one of more flammable and more flammable than the heated first flowable heat transfer medium.

The method can also include transferring heat from the heated second flowable heat transfer medium to at least one polyamine-containing component of the polyamine synthesis system. Polyamide can be any suitable poly Amines such as nylon 6, nylon 7, nylon 11, nylon 12, nylon 6,6, nylon 6,9; nylon 6,10, nylon 6,12, partially aromatic polyamines (eg, high temperature nylon) or Copolymer. Heat transfer can be carried out in any suitable manner. Heat transfer can be carried out in the heat exchanger, such as any suitable heat exchanger. The second flowable heat transfer medium can be heat transferred from a single plant component or a plurality of plant components. For example, heat can be transferred from the heated second flowable heat transfer medium to at least one of a preheater, an evaporator, a polymerization reactor, a flasher, a finishing machine, and an autoclave. The preheater can be any suitable preheater and can be associated with any suitable component of the apparatus, such as a preheater for at least one of an evaporator, a polymerization reactor, a flasher, a finishing machine, and an autoclave. The temperature of the individual components can be brought to any suitable temperature or temperature range by the heated second flowable heat transfer medium. For example, sufficient heat can be conducted to the evaporator to raise the temperature of the reaction mixture therein to any suitable temperature, such as about 100-230 ° C, or 100-150 ° C, or about 100 ° C or less, or about 110. °C, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210, 220 ° C, or a temperature above about 230 ° C or 230 ° C. For example, sufficient heat can be conducted to the reactor to raise the temperature of the reaction mixture therein to any suitable temperature, such as about 150-300 ° C, or about 200-250 ° C, or about 215-245 ° C, or about 150 ° C. Or below 150 ° C, or about 160 ° C, 170, 180, 190, 200, 210, 215, 220, 225, 230, 235, 240, 245, 250, 260, 270, 280, 290 ° C, or about 300 ° C or Temperature above 300 °C. For example, sufficient heat can be conducted to the flasher to raise the temperature of the reaction mixture therein to any suitable temperature, such as about 150-400 ° C, or about 250-350 ° C, or about 250-310 ° C, or about 200 ° C. Or below 200 ° C, or about 210 ° C, 220, 230, 240, 250, 260, 265, 270, 275, 280, 285, 290, 295, 300, 305, 310, 320, 330, 340 ° C or about 350 ° C Or a temperature above 350 °C. For example, sufficient heat can be conducted to the finishing machine to raise the temperature of the reaction mixture therein to any suitable temperature, such as about 150-400 ° C, or about 250-350 ° C, or about 250-310 ° C, or about 200. °C or below 200 °C, or about 210 °C, 220, 230, 240, 250, 260, 265, 270, 275, 280, 285, 290, 295, 300, 305, 310, 320, 330, 340 ° C or a temperature of about 350 ° C or above.

Transferring heat from the heated second flowable heat transfer medium to at least one component of the polyamide synthesis system can include maintaining the temperature of at least one component of the polyamide synthesis system at any suitable temperature, such as from about 100 ° C to about 400 °C, 150 ° C to 350 ° C, 150 ° C to 250 ° C, 250 ° C to 350 ° C, 200 ° C to 300 ° C or about 210 ° C to 260 ° C, or about 100 ° 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, 390 ° C, or about 400 °C or above 400 °C. Transferring heat from the heated second flowable heat transfer medium to at least one component of the polyamide synthesis system can include maintaining the temperature of the polyamidamine mixture in the reactor at any suitable temperature, such as from about 210 ° C to 260 ° C, or From about 218 ° C to about 250 ° C, or about 100 ° C or less, or about 110 ° 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, 390 ° C, or about 400 ° C or 400 ° C the above.

In some examples, the heated second flowable heat transfer medium can be used for other purposes in addition to or in lieu of heat transfer to at least one component of the polyamine synthesis system. For example, the second flowable heat transfer medium can be water, and the heated second flowable heat transfer medium can be steam, which can be used in various parts of the plant that require steam, avoiding the expense of fuel burning steam boilers.

System and device for preparing polyamine

This creation provides a system for preparing polyamines. The system can be any suitable system that can perform the methods described herein. The system includes a heater. The heater can be any suitable heater. The heater can be configured to heat the first flowable heat transfer medium to provide a heated first flowable heat transfer medium.

The system can include a first heat exchanger. The first heat exchanger can be any suitable heat exchanger. The first heat exchanger can be configured to transfer heat from the heated first flowable heat transfer medium to provide a heated second flowable heat transfer medium.

The system can include a second heat exchanger. The second heat exchanger can be any suitable heat exchanger. The second heat exchanger can be configured to transfer heat from the heated second flowable heat transfer medium to the at least one polyamine-containing component of the polyamide synthesis system.

The present invention provides a device for preparing polyamine. The device can be any suitable device that can perform the methods described herein. The device can include a heater. The heater can be any suitable heater. The heater can be configured to heat the first flowable heat transfer medium to provide a heated first flowable heat transfer medium.

The device can include a first heat exchanger. The first heat exchanger can be any suitable heat exchanger. The first heat exchanger can be configured to transfer heat from the heated first flowable heat transfer medium to provide a heated second flowable heat transfer medium.

The device can include a second heat exchanger. The second heat exchanger can be any suitable heat exchanger. The second heat exchanger can be configured to transfer heat from the heated second flowable heat transfer medium to the at least one polyamine-containing component of the polyamide synthesis system.

Figure 1 illustrates an embodiment of a system or apparatus 10 for preparing polyamine. The system or device can include a heater 15. The heater heats the first flowable heat transfer medium 20 disposed in the primary heating ring 25 to provide a heated first flowable heat transfer medium 30. The system or device can include a first heat exchanger 35. The first heat exchanger 35 transfers heat from the heated first flowable heat transfer medium 30 to the second flowable heat transfer medium 40 disposed in the secondary heating ring 45 to provide a heated second flowable heat transfer medium 50. The first flowable heat transfer medium 20 (eg, the used first flowable heat transfer medium) is conducted back to the heater 15 for reheating. The system or device can include a second heat exchanger 55. The second heat exchanger 55 transfers heat from the heated second flowable heat transfer medium 50 to at least one polyamine containing component of the polyamine synthesis system, which assembly can be integrated with the second heat exchanger 55. Second flowable heat transfer The conductive medium 40 (e.g., the used second flowable heat transfer medium) is conducted back to the second heat exchanger 35 for reheating. The system or device can deliver a thermally conductive medium, such as convulsions or convection, from one location to another using any suitable means.

Figure 2 illustrates an embodiment of a system or apparatus 21 for preparing polyamine. The system or device can include a heater 15. The heater heats the first flowable heat transfer medium 20 disposed in the primary heating ring 25 to provide a heated first flowable heat transfer medium 30. The system or device can include a first heat exchanger 35. The first heat exchanger 35 transfers heat from the heated first flowable heat transfer medium 30 to the second flowable heat transfer medium 40 disposed in the secondary heating ring 45 to provide a heated second flowable heat transfer medium 50. The system or device can include a second heat exchanger 55. The second heat exchanger 55 transfers heat from the heated second flowable heat transfer medium 50 to at least one polyamine containing component of the polyamine synthesis system, which assembly can be integrated with the second heat exchanger 55. A second flowable heat transfer medium (eg, a second flowable heat transfer medium that has been used) is conducted back to the second heat exchanger for reheating. The heated first flowable heat transfer medium 30 is conducted to the third heat exchanger 36. The third heat exchanger 36 transfers heat from the heated first flowable heat transfer medium 30 to the second flowable heat transfer medium 41 disposed in the secondary heating ring 46 to provide a heated second flowable heat transfer medium 51. The system or apparatus can include a fourth heat exchanger 56. The fourth heat exchanger 56 transfers heat from the heated second flowable heat transfer medium 51 to at least one polyamine containing component of the polyamide synthesis system, which assembly can be integrated with the fourth heat exchanger 56. The second flowable heat transfer medium 41 (e.g., the used second flowable heat transfer medium) is conducted back to the third heat exchanger 36 for processing. The first flowable heat transfer medium 20 (eg, the used first flowable heat transfer medium) is conducted back to the heater 15 for reheating.

Although FIG. 2 illustrates an embodiment in which the first heat exchanger 35 is in series with the third heat exchanger 36 such that the third heat exchanger 36 is in the heated first flowable heat transfer medium 30 to the second flowable heat transfer medium 40 The heated first flowable heat transfer medium 30 is received after heat transfer. This creation also covers parallel heat exchange between the primary and secondary heating rings. Converter configuration. For example, in one embodiment, the third heat exchanger 36 may extract the heated portion at a point upstream of the first heating ring that is returned from the heat exchanger 35 via the used first flowable heat transfer medium. A flowable heat transfer medium such that the third heat exchanger does not draw a first flowable heat transfer medium that has conducted some heat in the first heat exchanger 35 to the second flowable heat transfer medium 40.

First flowable heat transfer medium

In the method, system or apparatus, the first flowable heat transfer medium can be any suitable flowable heat transfer medium. The first flowable thermally conductive medium can include one or more organic compounds having features that make the first flowable thermally conductive medium suitable for use in the methods, systems, and devices described herein. The first thermally conductive flowable medium may be, for example, water, polyethylene glycol, polypropylene glycol, mineral oil, polyethylene oxide silicone oil, diphenyl oxide, biphenyl, inorganic salts, Therminol brand heat transfer fluid and Dowtherm ^TM brand heat transfer fluid in the At least one of them. The first flowable heat transfer medium can be, for example, a Therminol® brand heat transfer fluid such as Therminol® VLT (eg, methylcyclohexane, trimethylpentane), Therminol® D-12 (eg, C _10-13 alkane, eg, Isoalkane), Therminol® LT (eg diethylbenzene), Therminol® XP (eg white petroleum mineral oil), Therminol® 55 (eg C _14-30 alkyl aryl compound), Therminol® 59 (eg , ethyl diphenylethane, diphenylethane, diethyldiphenylethane, ethylbenzene polymer), Therminol® 62 (eg, diisopropylbiphenyl, triisopropylbiphenyl) ), Therminol® VP-3 (eg, cyclohexylbenzene, dicyclohexyl), Therminol® 66 (eg, terphenyl (o-triphenyl), m-triphenyl, p-triphenyl), hydrogenation Benzene, partially hydrogenated tetraphenyl, partially hydrogenated high carbon polyphenylene), Therminol® 72 (eg, diphenyl ether, terphenyl, biphenyl, phenanthrene), Therminol® VP-1 (eg, diphenyl ether, hydrazine) At least one of benzene), Therminol® FF (eg, extended ethylbenzene). The first flowable heat transfer medium may include, for example, trimethylpentane, C _10-13 alkane, C _10-13 isoalkane, C _14-30 alkyl aryl compound, diethyl benzene, ethyl benzene, and ring. Hexylbenzene, C _14-30 alkylbenzene, white petroleum mineral oil, ethyl diphenylethane, diphenylethane, diethyldiphenylethane, diphenyl ether, diphenyl oxide, ethyl Benzene polymer, biphenyl, diisopropylbiphenyl, triisopropylbiphenyl, methylcyclohexane, dicyclohexyl, terphenyl, hydrogenated terphenyl, partially hydrogenated tetraphenyl, partially hydrogenated high carbon number Polyphenylene, diphenyl ether and phenanthrene, a diaryl compound, a triaryl compound, a diaryl ether, a triaryl ether, an alkylaryl compound, a diarylalkyl compound or a combination thereof.

The first flowable heat transfer medium can have any suitable temperature. For example, the first flowable heat transfer medium can be from about 20 ° C to 400 ° C, or from about 50 ° C to 350 ° C, from 100 ° C to 300 ° C, from 100 ° C to 200 ° C, from 200 ° C to 250 ° C, or from about 250 ° C to 300 ° C, or about 20 ° C or below, or about 30 ° 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 ° C, or about 400 ° C or above. The first flowable heat transfer medium can have any suitable phase, such as a gas phase, a liquid phase, or any suitable combination thereof. For example, the first flowable heat transfer medium can be about 60% or less by weight, or about 70% by weight, 80, 85, 90, 95, 96, 97, 98, or about 99% by weight or 99 weight. More than % of the liquid phase. The first flowable heat transfer medium can be substantially in the liquid phase.

The heated first flowable heat transfer medium can have any suitable temperature. For example, the heated first flowable heat transfer medium can be from about 100 ° C to 500 ° C, from 100 ° C to 400 ° C, from 100 ° C to 300 ° C, from 100 ° C to 200 ° C, from 200 ° C to 250 ° C, from 250 ° C to 300 °C, 300 ° C to 350 ° C, 350 ° C to 400 ° C, 400 ° C to 500 ° C, 280 ° C to 400 ° C, or 330 ° C to 350 ° C, or about 100 ° C or less, or about 110 ° 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 ° C, or about 400 ° C or above. The heated first flowable heat transfer medium can have any suitable phase, such as a gas phase, a liquid phase, or any suitable group thereof. Hehe. For example, the heated first flowable heat transfer medium can be about 60% or less, or about 70%, 80, 85, 90, 95, 96, 97, 98, or about 99% by weight. Or a liquid phase of 99% by weight or more. The heated first flowable heat transfer medium can be substantially liquid phase.

During heating of the first flowable thermally conductive medium, the first flowable thermally conductive medium can substantially retain the liquid (eg, the first flowable thermally conductive medium does not substantially vaporize). The heat conducted to the first flowable heat transfer medium during heating of the first flowable heat transfer medium can include substantially all of the sensible heat. For example, during heating of the first flowable heat transfer medium, the heat transferred to the first flowable heat transfer medium can include any suitable percentage of sensible heat, such as about 60% or less, or about 70%, 80, 85. , 90, 95, 96, 97, 98, or about 99% or more of sensible heat, the rest being latent heat (eg, heat of vaporization).

The heated first flowable heat transfer medium can substantially retain the liquid during heat transfer from the heated first flowable heat transfer medium to the second flowable heat transfer medium. For example, the first flowable heat transfer medium does not freeze. The heated first flowable heat transfer medium does not substantially condense during heat transfer from the heated first flowable heat transfer medium to the second flowable heat transfer medium. For example, if the heated first flowable heat transfer medium is substantially liquid phase, condensation does not occur, or only a small amount of the vapor phase component of the heated first flowable heat transfer medium condenses. The heat conducted from the heated first flowable heat transfer medium may include substantially all of the sensible heat during heat transfer from the heated first flowable heat transfer medium to the second flowable heat transfer medium. For example, during heat transfer from the heated first flowable heat transfer medium to the second flowable heat transfer medium, the heat conducted from the heated first flowable heat transfer medium can include any suitable percentage of sensible heat, such as about 60% or less, or about 70%, 80, 85, 90, 95, 96, 97, 98, or about 99% or more of sensible heat, the balance being latent heat (eg, heat of vaporization).

Both the first flowable heat transfer medium and the heated first flowable heat transfer medium can be disposed in the first heating ring. From the heated first flowable heat transfer medium to the second The flowable heat transfer medium heat transfer can provide a first flowable heat transfer medium that has been used. The method can include circulating the used first flowable heat transfer medium back into the heating of the first flowable heat transfer medium. The first heating ring may be a primary ring that circulates the first heat transfer medium between the central heating zone of the apparatus and one or more secondary rings containing the second flowable heat transfer medium, or the first heating ring may be, for example, Heating less than all of the primary rings containing the secondary ring of the second flowable heat transfer medium.

The method can include controlling at least one of a pressure of the first flowable heat transfer medium and a temperature of controlling the heated first flowable heat transfer medium. Controlling the pressure of the first flowable heat transfer medium and controlling the pressure of the heated first flowable heat transfer medium can include controlling the pressure in the first heating ring. The pressure can be controlled to any suitable pressure, such as from about 50 KPa to 1,000,000 KPa, from 100 KPa to 500,000 KPa, or from 500 KPa to 250,000 KPa, or from about 50 KPa or below, or from about 100 KPa, 500 KPa, 1 MPa, 2 MPa, 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, 200 MPa, or approximately 250MPa or more. In some examples, the saturation temperature can be controlled to any suitable temperature, such as from about 100 ° C to 500 ° C, from 100 ° C to 400 ° C, from 100 ° C to 300 ° C, from 100 ° C to 200 ° C, from 200 ° C to 250 ° C, from 250 ° C to 300 ° C, 300 ° C to 350 ° C, 350 ° C to 400 ° C, 400 ° C to 500 ° C, 210 ° C to 350 ° C, or 260 ° C to 300 ° C, or about 100 ° C or less, or about 110 ° 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 ° C, or about 400 ° C or above. The maximum temperature of the heated first flowable heat transfer medium may be within any suitable range of the saturation temperature of the heated first flowable heat transfer medium, such as about 0 of the saturation temperature of the heated first flowable heat transfer medium. 100 ° C, 0-60 ° C, about 0-40 ° C, or about 0 ° C, 1, 2, 3, 4, 5, 10, 15, 20, 25, 30, 35, 40, 50, 60, 70, 80 , 90, or about 100 ° C. In various realities In an embodiment, in an example including vaporization of the first heat transfer medium, the pressure of the first flowable heat transfer medium and the heated first flowable heat transfer medium can be similarly controlled to control the saturation temperature of the first flowable heat transfer medium. The temperature of the heated second flowable heat transfer medium can be controlled by controlling the temperature at which the first flowable heat transfer medium vaporizes and the temperature at which the heated first flowable heat transfer medium condenses (e.g., saturation temperature).

The first flowable heat transfer medium and the heated first flowable heat transfer medium can independently have any suitable vapor pressure, such as from about 50 KPa to 1,000,000 KPa, from 100 KPa to 500,000 KPa, or from 500 KPa to 250,000 KPa, or from about 50 KPa or below 50 KPa. 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, 200 MPa, or about 250 MPa or more.

The first flowable heat transfer medium and the heated first flowable heat transfer medium can have any suitable heat capacity. For example, at about 100 ° C or below, or at about 110 ° 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 ° C, or about 400 ° C or above, the first flowable heat transfer medium and the heated first flowable heat transfer The medium can have from about 0.2 KJ/Kg ° C to about 8.5 KJ/Kg ° C, from about 1 KJ/Kg ° C to about 4 KJ/Kg ° C, about 0.2 KJ/Kg ° C or less than 0.2 KJ/Kg ° C, or about 0.5 KJ/Kg ° 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, 8 KJ/Kg ° C, or about 8.5 KJ / Kg ° C or 8.5 KJ / Kg ° C or more heat capacity.

The first flowable heat transfer medium can be cycled at any suitable rate, such as from about 1 L/min to about 1,000,000 L/min, or from about 10 L/min to about 100,000 L/min, or about 1 L/min or less, 10 L/ Min, 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 1,000,000 L/min or more than 1,000,000 L/min.

Second flowable heat transfer medium

In the method, system or apparatus, the second flowable heat transfer medium can be any suitable flowable heat transfer medium. The second flowable heat transfer medium can include one or more organic compounds having features that make the second flowable heat transfer medium suitable for use in the methods, systems, and devices described herein. The second heat transfer medium flow may be, for example, can include water, polyethylene glycol, polypropylene glycol, mineral oil, polyethylene oxide silicone oil, diphenyl oxide, biphenyl, inorganic salts, terphenyl, Therminol brand heat transfer fluid and Dowtherm ^TM At least one of the brand heat transfer fluids. Second flowable heat transfer medium may comprise, for example, Dowtherm ^TM brand heat transfer fluid such as Dowtherm ^TM A (e.g., biphenyl and diphenyl oxide, diphenyl oxide with e.g. eutectic mixture of biphenyl, for example, 26.5% by weight biphenyl and 73.5 wt.% diphenyl oxide), Dowtherm ^TM G (e.g., biaryl compounds, triarylmethane compounds, diaryl and triaryl ether), Dowtherm ^TM J (e.g., compound alkylaryl), Dowtherm ^TM MX (e.g., alkyl aryl compounds), Dowtherm ^TM Q (e.g., diphenyl ethane, alkyl aryl compounds), Dowtherm ^TM RP (e.g., diaryl alkyl compound) and Dowtherm ^TM T (e.g., C At least one of _14-30 alkylbenzenes. The second flowable heat transfer medium may include, for example, trimethylpentane, C _10-13 alkane, C _{10 -13} isoalkane, C _14-30 alkylaryl compound, diethylbenzene, ethylbenzene, and ring. Hexylbenzene, C _14-30 alkylbenzene, white petroleum mineral oil, ethyl diphenylethane, diphenylethane, diethyldiphenylethane, diphenyl ether, diphenyl oxide, ethyl Benzene polymer, biphenyl, diisopropylbiphenyl, triisopropylbiphenyl, methylcyclohexane, dicyclohexyl, terphenyl, hydrogenated terphenyl, partially hydrogenated tetraphenyl, partially hydrogenated high carbon number Polyphenylene, diphenyl ether and phenanthrene, a diaryl compound, a triaryl compound, a diaryl ether, a triaryl ether, an alkylaryl compound, a diarylalkyl compound or a combination thereof.

The second flowable heat transfer medium can have any suitable temperature. For example, the second flowable heat transfer medium can be from about 20 ° C to 400 ° C, or from about 50 ° C to 350 ° C, from 100 ° C to 300 ° C, from 100 ° C to 200 ° C, from 200 ° C to 250 ° C, or from about 250 ° C to 300 ° C, or about 20 ° C or below, or about 30 ° 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 ° C, or about 400 ° C or above. The second flowable heat transfer medium can have any suitable phase, such as a gas phase, a liquid phase, or any suitable combination thereof. For example, the second flowable heat transfer medium can be about 60% or less, or about 70%, 80, 85, 90, 95, 96, 97, 98, or about 99% or 99% by weight. Above the gas phase. The second flowable heat transfer medium can be substantially in the gas phase.

The heated second flowable heat transfer medium can have any suitable temperature. For example, the heated second flowable heat transfer medium can be from about 100 ° C to 500 ° C, from 100 ° C to 400 ° C, from 100 ° C to 300 ° C, from 100 ° C to 200 ° C, from 200 ° C to 250 ° C, from 250 ° C to 300 °C, 300 ° C to 350 ° C, 350 ° C to 400 ° C, 400 ° C to 500 ° C, 210 ° C to 350 ° C, or 260 ° C to 300 ° C, or about 100 ° C or less, or about 110 ° 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 ° C, or about 400 ° C or above. The heated second flowable heat transfer medium can have any suitable phase, such as a gas phase, a liquid phase, or any suitable combination thereof. For example, the heated second flowable heat transfer medium can be about 60% or less, or about 70%, 80, 85, 90, 95, 96, 97, 98, or about 99% by weight or 99% by weight or more of the gas phase. The heated second flowable heat transfer medium can be substantially gas phase.

From the first flowable heat transfer medium heated to the second flowable heat transfer medium During heat transfer, the second flowable heat transfer medium can substantially become a gas (eg, the second flowable heat transfer medium can be substantially completely vaporized). During heat transfer from the heated first flowable heat transfer medium to the second flowable heat transfer medium, the heat transferred to the second flowable heat transfer medium may include substantially all latent heat (eg, heat of vaporization). For example, during heat transfer from the heated first flowable heat transfer medium to the second flowable heat transfer medium, the heat transferred to the second flowable heat transfer medium can include any suitable percentage of latent heat, such as from about 60% to 100% %, 70% to 100%, 80% to 100%, 90% to 100%, or about 60% or less, or about 65%, 70, 75, 80, 85, 90, 95, 96, 97, 98%, or about 99% or more, of latent heat (for example, heat of vaporization), and the rest is sensible heat.

The heated second flowable heat transfer medium can be substantially condensed into a liquid during heat transfer from the heated second flowable heat transfer medium to the at least one polyamine containing component of the polyamide synthesis system. For example, substantially all of the gas phase of the heated second flowable heat transfer medium can condense. The heat transferred from the second flowable heat transfer medium may include substantially all latent heat (eg, heat of vaporization) during heat transfer from the heated second flowable heat transfer medium to the at least one polyamine containing component of the polyamine synthesis system ). The heat transferred from the second flowable heat transfer medium may include any suitable percentage of latent heat, such as about 60, during heat transfer from the heated second flowable heat transfer medium to the at least one polyamine containing component of the polyamine synthesis system. % to 100%, 70% to 100%, 80% to 100%, 90% to 100%, or about 60% or less, or about 65%, 70, 75, 80, 85, 90, 95, 96 , 97, 98%, or about 99% or more of latent heat (for example, heat of vaporization), and the rest is sensible heat.

The method can include controlling a pressure of the second flowable heat transfer medium and controlling a pressure of the heated second flowable heat transfer medium to control a temperature at which the second flowable heat transfer medium vaporizes and controlling a condensation of the heated second flowable heat transfer medium temperature. The second heat transfer medium and the heated second heat transfer medium can be disposed in the second heating ring. Heat transfer from the heated second flowable heat transfer medium to at least one component of the polyamide synthesis system A second flowable heat transfer medium that has been used. The method can include circulating a used second flowable heat transfer medium back to heat transfer from the heated first flowable heat transfer medium.

Controlling the pressure of the second flowable heat transfer medium and controlling the pressure of the heated second flowable heat transfer medium can include controlling the pressure in the second heating loop. The pressure can be controlled to any suitable pressure, such as from about 50 KPa to 1,000,000 KPa, from 100 KPa to 500,000 KPa, or from 500 KPa to 250,000 KPa, or from about 50 KPa or below, or from about 100 KPa, 500 KPa, 1 MPa, 2 MPa, 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, 200 MPa, or approximately 250MPa or more. In some examples, the saturation temperature can be controlled to any suitable temperature, such as from about 100 ° C to 500 ° C, from 100 ° C to 400 ° C, from 100 ° C to 300 ° C, from 100 ° C to 200 ° C, from 200 ° C to 250 ° C, from 250 ° C to 300 ° C, 300 ° C to 350 ° C, 350 ° C to 400 ° C, 400 ° C to 500 ° C, 210 ° C to 350 ° C, or 260 ° C to 300 ° C, or about 100 ° C or less, or about 110 ° 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 ° C, or about 400 ° C or above. The maximum temperature of the heated second flowable heat transfer medium may be within any suitable range of the saturation temperature of the heated second flowable heat transfer medium, such as about 0 of the saturation temperature of the heated second flowable heat transfer medium. 100 ° C, 0-60 ° C, about 0-40 ° C, or about 0 ° C, 1, 2, 3, 4, 5, 10, 15, 20, 25, 30, 35, 40, 50, 60, 70, 80 , 90 or less than 100 ° C. In various embodiments, in an example including vaporization of the first heat transfer medium, the pressure of the first flowable heat transfer medium and the heated first flowable heat transfer medium can be similarly controlled to control the saturation temperature of the first flowable heat transfer medium. .

The temperature of at least one polyamine-containing component of the polyamine synthesis system can be controlled by controlling the temperature at which the second flowable heat transfer medium vaporizes and the temperature at which the heated second flowable heat transfer medium condenses (e.g., saturation temperature). By controlling the pressure of the second flowable heat transfer medium And controlling the saturation temperature thereof, the temperature of the at least one polyamine-containing component of the polyamine synthesis system can be controlled to any suitable temperature, such as from about 100 ° C to 500 ° C, from 100 ° C to 400 ° C, from 100 ° C to 300 ° C, 100 ° C to 200 ° C, 200 ° C to 250 ° C, 250 ° C to 300 ° C, 300 ° C to 350 ° C, 350 ° C to 400 ° C, 400 ° C to 500 ° C, 210 ° C to 350 ° C, or 260 ° C to 300 °C, or about 100 ° C or less, or about 110 ° 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 ° C, or about 400 ° C or above.

The second flowable heat transfer medium and the heated second flowable heat transfer medium can independently have any suitable vapor pressure, such as from about 50 KPa to 1,000,000 KPa, from 100 KPa to 500,000 KPa, or from 500 KPa to 250,000 KPa, or from about 50 KPa or below 50 KPa. 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, 200 MPa, or about 250 MPa or more.

The second flowable heat transfer medium and the heated second flowable heat transfer medium can have any suitable heat capacity. For example, at about 100 ° C or below, or at about 110 ° 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 ° C or above about 400 ° C or above, the second flowable heat transfer medium and the heated second flowable The heat transfer medium can have from about 0.2 KJ/Kg ° C to about 8.5 KJ/Kg ° C, from about 1 KJ/Kg ° C to about 4 KJ/Kg ° C, about 0.2 KJ/Kg ° C or less than 0.2 KJ/Kg ° C, or about 0.5 KJ/Kg. °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. Heat capacity of 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8 KJ/Kg ° C, or about 8.5 KJ/Kg ° C or above 8.5 KJ/Kg ° C.

Heated first flowable heat transfer medium and heated second flowable heat transfer The temperature difference between the media can be any suitable difference; for example, the difference can be about 0-300 ° C, 0-200 ° C, 0-100 ° C, 0-60 ° C, about 0-40 ° C, or about 0 °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 ° C, or about 300 ° C or more. The temperature difference between the first flowable heat transfer medium and the heated first flowable heat transfer medium and the temperature difference between the second flowable heat transfer medium and the heated second flowable heat transfer medium may be any suitable difference; For example, the difference can independently be about 0-300 ° C, 0-200 ° C, 0-100 ° C, 0-60 ° C, about 0-40 ° C, or about 0 ° 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 ° C, or about 300 ° C or more.

The second flowable heat transfer medium can be circulated at any suitable rate, such as from about 1 L/min to about 1,000,000 L/min, or from about 10 L/min to about 100,000 L/min, or about 1 L/min or less, 10 L/ Min, 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 1,000,000 L/min or more than 1,000,000 L/min.

Other flowable heat transfer media

In the method, system or apparatus, heat from the heated first flowable heat transfer medium can be conducted to one or more second flowable heat transfer media. For example, a first heating ring containing a first flowable heat transfer medium can be used to heat a plurality of other heating rings each containing a second flowable heat transfer medium. In another example, a first heating ring containing a first flowable heat transfer medium can be used to heat one or more second heating rings each containing a second flowable heat transfer medium and one or more each containing a third flowable heat transfer The third heating ring of the medium.

The transfer of the first flowable heat transfer medium from the heated to the second flowable heat transfer medium provides a first flowable heat transfer medium that has been used. The method can include transferring heat from the first flowable heat transfer medium (eg, in series configuration) or from the heated first flowable heat transfer medium (eg, parallel configuration) to the third flowable heat transfer medium to provide A third flowable heat transfer medium that is heated. The method can include transferring heat from the heated third flowable heat transfer medium to at least one polyamine-containing component of the polyamine synthesis system. The third flowable heat transfer medium can be any suitable heat transfer medium described herein. The third flowable heat transfer medium can be the same or different than the second heat transfer medium. At least one component of the polyamine synthesis system to which the third flowable heat transfer medium is heated may be at least one component of a polyamine synthesis system to which heat is transferred from the heated second flowable heat transfer medium Same or different.

Polyamine

The polyamine prepared by the method, system or device can be any suitable polyamine. The polyamine can be synthesized from a linear dicarboxylic acid and a linear diamine or an oligomer formed from a linear dicarboxylic acid and a linear diamine. The polyamine can be nylon-6,6. The finished polyamine can be produced at any suitable rate, such as from about 1 L/min to about 1,000,000 L/min, or from about 10 L/min to about 100,000 L/min, or about 1 L/min or less, 10 L/min, 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 1,000,000 L/min or more than 1,000,000 L/min.

The dicarboxylic acid can be any suitable dicarboxylic acid. The dicarboxylic acid may have the structure HOC(O)-R ¹ -C(O)OH, wherein R ¹ is a C ₁ -C ₁₅ alkylene group such as methylene, ethyl, propyl, butyl, Stretching pentyl, stretching hexyl, stretching heptyl, stretching octyl, stretching sputum or stretching sputum. The dicarboxylic acid can be adipic acid (for example, R ¹ = butyl group).

The diamine can be any suitable diamine. The diamine may have the structure H ₂ NR ² —NH ₂ , wherein R ² is a C ₁ -C ₁₅ alkylene group, such as methylene, ethyl, propyl, butyl, pentyl, hexyl, Stretching the base, stretching the octyl group, stretching the base or stretching the base. The diamine can be hexamethylenediamine (eg, R ² = butyl).

Instance

This creation can be better understood by reference to the following examples provided by way of illustration. This creation is not limited to the examples given herein. In all instances, the secondary heating ring is connected in parallel with the primary heating ring, although a series configuration and a combination of parallel and series configurations are also within the scope of the present creative embodiment.

Example 1a. Comparative example. Liquid phase heat transfer medium in primary heating ring

Therminol® 66 was heated to about 340 ° C and circulated through a primary heating loop in a nylon-6,6 manufacturing facility. The primary heating ring circulates Therminol® 66 between the power chamber and the heat exchanger on the evaporator, reactor and finisher at a suitable flow rate, after which the Therminol® 66 is conducted back to the power chamber for reheating. About 10,000,000 L of Therminol® 66 is used in the primary heating ring. Therminol® 66 remains liquid throughout the process.

In a continuous nylon-6,6 manufacturing process, adipic acid and hexamethylenediamine are combined in water at approximately equimolar ratio to form an aqueous mixture containing nylon-6,6 salt having about 50% by weight water. . The aqueous salt was transferred to the evaporator at about 105 L/min. Therminol® 66 from the primary heating ring transfers heat to the evaporator such that the evaporator heats the aqueous salt to about 125-135 ° C (130 ° C) and removes water from the heated aqueous salt to a water concentration of about 30 weight%. The evaporated salt mixture was transferred to the reactor at about 75 L/min. The heat of the Therminol® 66 in the primary heating loop is transferred to the reactor to bring the temperature of the evaporated salt mixture to about 218-250 ° C (235 ° C), so that the reactor can further remove water from the heated salt mixture and cause The salt is further polymerized and brought to a water concentration of about 10% by weight. The reaction mixture was transferred to a flasher at about 60 L/min. From the Therminol® 66 in the primary heating ring to the flasher Heat, the reaction mixture is heated to about 270-290 ° C (280 ° C) so that the flasher can further remove water from the reaction mixture and cause the reaction mixture to further polymerize to a water concentration of about 0.5% by weight. The flashed mixture was transferred to the finisher at about 54 L/min, and the polymerization mixture was subjected to a vacuum to further remove water to a water concentration of about 0.1% by weight to bring the polyamine to a suitable final degree of polymerization. The finished polymerization mixture is then transferred to an extruder and granulator.

The liquid Therminol® 66 requires a large pump to provide circulation of the material throughout the primary heating loop to all plant operations and back to the power chamber for reheating. The total temperature of Therminol® 66 varies greatly per kilogram (Kg) of Therminol® 66 conduction per kilojoule (KJ) of heat compared to other methods using a thermally conductive material that undergoes a phase change during heat transfer; A higher cycle rate and a larger surface area are used for heat conduction to achieve the desired amount of heat transfer. In addition, maintaining the precise temperature at which each device operates is difficult because the temperature of the heat transfer medium can only be adjusted overall and the temperature of the individual devices cannot be adjusted.

Example 1b. Comparative example. Gas phase heat transfer medium in primary heating ring

Between the power chamber and the various devices and the operating cycle at about 340 ℃ and a pressure of about 400KPa Dowtherm ^TM A nylon-6,6 in a vapor heated to a manufacturing plant through a primary heating ring, to which various devices wherein the heat transfer operations, It is then conducted back to the power chamber for reheating. Heating the primary ring is used Dowtherm ^TM A. of about 10,000,000L Dowtherm ^TM A during the entire process remains a vapor, and the material is not sufficient to cause dropped below the saturation temperature of the circulation rate in the loop.

As described in Example 1a nylon-6,6 in the continuous manufacturing method, but using a gaseous Dowtherm ^TM A. throughout the manufacturing process Compared with other methods used in the heat experienced during the phase change heat conduction of the conductive material per kilogram of Dowtherm ^TM A heat conductive kJ per total change of temperature of the Dowtherm ^TM A larger; use a higher circulation rate in the heat exchanger and more The large surface area is used for heat conduction to achieve the desired amount of heat transfer. In addition, maintaining the precise temperature at which each device operates is difficult because the temperature of the heat transfer medium can only be adjusted overall and the temperature of the individual devices cannot be adjusted.

Example 1c. Comparative example. Volatile heat transfer medium in the primary heating ring with condensation

Following the example 1b, but using a constant circulation rate Dowtherm ^TM A such that the operation of the device during the various heat transfer from Dowtherm ^TM A primary absorb sufficient heat to cause the heating ring Dowtherm ^TM A partially condensed. In order for the resulting liquid to circulate to the remaining plant operation and cycle back to the power chamber, additional equipment (including liquid gas-liquid separators, additional lines, and pumps) is required to return the condensate to the power chamber for reheating and re-vaporization. Maintaining the precise temperature of each device operation is difficult because the temperature of the heat transfer medium can only be adjusted overall and the temperature of the individual devices cannot be adjusted.

Example 1d. Comparative example. Volatile heat transfer medium in the primary heating ring is accompanied by leakage

Follow example 1b.

Leakage occurred in the primary heating ring. Since the primary use of high-pressure steam heating ring, Dowtherm ^TM A vapor escape through the loopholes, so that the whole pressure reduction of the primary heating loop. Due to the size of the primary heating ring, large volumes of vapor escape through the loophole before the pressure in the system drops to a level that slows the rate of leakage. The risk of fire or explosion is present around the escape of vapors so Dowtherm ^TM A vulnerability and vulnerabilities, including a space region connected to the vicinity of the fluid space and the vulnerability. In order to prevent leakage or extinguish the fire that is fed by the vulnerability, the entire primary heating ring in the plant must be shut down.

Example 1e. Comparative example. Volatile heat transfer medium in the primary heating ring is accompanied by leakage

Follow example 1c.

Leakage occurred in the primary heating ring. Since the primary use of high-pressure steam heating ring, Dowtherm ^TM A vapor escape through the loopholes, so that the whole pressure reduction of the primary heating loop. Due to the size of the primary heating ring, large volumes of vapor escape through the loophole before the pressure in the system drops to a level that slows the rate of leakage. The risk of fire or explosion is present around the escape of vapors so Dowtherm ^TM A vulnerability and vulnerabilities, including a space region connected to the vicinity of the fluid space and the vulnerability. In order to prevent leakage or extinguish the fire that is fed by the vulnerability, the entire primary heating ring in the plant must be shut down.

Example 2a. Therminol® 66 in the primary heating loop where the evaporator, reactor and flasher are heated via a secondary heating loop

Therminol® 66 was heated to about 340 ° C and circulated through a primary heating loop in a nylon-6,6 manufacturing facility. The primary heating ring circulates Therminol® 66 between the power chamber and heat exchanger on the secondary heating ring and the heat exchangers operated by individual units. Secondary heating ring containing Dowtherm ^TM A, and used to heat the evaporator, reactor and flasher. Independently adjusting the pressure of the secondary heating loop to change the vaporization and condensation temperature of the Dowtherm ^TM A, to precisely control the temperature of each of the specific operation of the apparatus of heated. Primary heating rings contain about 10,000,000L of Therminol® 66, and each of two heating rings contain from about 50,000L of Dowtherm ^TM A.

In a continuous nylon-6,6 manufacturing process, adipic acid and hexamethylenediamine are combined in water at approximately equimolar ratio to form an aqueous mixture containing nylon-6,6 salt and having about 50% by weight water. . The aqueous salt was transferred to the evaporator at about 105 L/min. Since for secondary heating of the evaporator in the loop Dowtherm ^TM A heat transfer to the evaporator, such that the aqueous salt evaporator may be heated to about 125-135 ℃ (130 ℃) and aqueous salt from the heated water is removed, so that The water concentration reached about 30% by weight. The evaporator pressure is adjusted to the secondary heating rings about 1KPa about 3KPa (2KPa) so that the saturation temperature of the Dowtherm ^TM A was maintained at about 130 ℃. The evaporated salt mixture was transferred to the reactor at about 75 L/min. Since the secondary heating loop reactor in the Dowtherm ^TM A heat transfer to the reactor, the temperature of the salt mixture was evaporated to approximately 218-250 ℃ (235 ℃), so that the reaction mixture can be heated from the salt by evaporating the further shift In addition to water, the water concentration is brought to about 10% by weight and the salt is further polymerized. The pressure on the reactor was adjusted to the secondary heating rings about 28KPa to about 97KPa (80KPa) such that the saturation temperature of the Dowtherm ^TM A was maintained at about 235 ℃. The reaction mixture was transferred to a flasher at about 60 L/min. Since the heater ring for two of the flasher in Dowtherm ^TM A heat transfer to the flasher, the reaction mixture was heated to about 270-290 ℃ (280 ℃), so that the flasher can further remove water from the reaction mixture, the concentration of the water Approximately 0.5% by weight is reached and the reaction mixture is further polymerized. The flasher pressure of the secondary heating loop is adjusted to about about 150KPa to 200KPa (180KPa) so that the saturation temperature of the Dowtherm ^TM A was maintained at about 280 ℃. The flashed mixture was transferred to the finisher at about 54 L/min, and the polymerization mixture was subjected to a vacuum to further remove water to a water concentration of about 0.1% by weight to bring the polyamine to a suitable final degree of polymerization. The finished polymerization mixture is then transferred to an extruder and granulator.

Example 2b. Therminol® 66 in the primary heating loop where the evaporator, reactor and flasher are heated via a secondary heating loop

Therminol® 66 was heated to about 340 ° C and circulated through a primary heating loop in a nylon-6,6 manufacturing facility. The primary heating ring circulates Therminol® 66 between the power chamber and heat exchanger on the secondary heating ring and the heat exchangers operated by individual units. Secondary heating ring containing Dowtherm ^TM A, and used to heat the evaporator, reactor and flasher. Independently adjusting the pressure of the secondary heating loop to change the vaporization and condensation temperature of the Dowtherm ^TM A, to precisely control the temperature of each of the specific operation of the apparatus of heated. Primary heating rings contain about 10,000,000L of Therminol® 66, and each of two heating rings contain from about 50,000L of Dowtherm ^TM A.

In a continuous nylon-6,6 manufacturing process, adipic acid and hexamethylenediamine are combined in water at approximately equimolar ratio to form an aqueous mixture containing nylon-6,6 salt and having about 50% by weight water. . The aqueous salt was transferred to the evaporator at about 105 L/min. Since for secondary heating of the evaporator in the loop Dowtherm ^TM A heat transfer to the evaporator, such that the aqueous salt evaporator may be heated to about 125-135 ℃ (130 ℃) and aqueous salt from the heated water is removed, so that The water concentration reached about 30% by weight. The evaporator pressure is adjusted to the secondary heating rings about 1KPa about 3KPa (2KPa) so that the saturation temperature of the Dowtherm ^TM A was maintained at about 130 ℃. Heating the heat conduction between the primary ring and the secondary heating and thermal conduction between the rings of two cyclic heating the evaporator predominantly sensible heat, wherein the secondary heating temperature for the evaporator of the loop of Dowtherm ^TM A ratio of no more than The saturation temperature of about 130 ° C is larger or smaller by about 15 ° C. The evaporated salt mixture was transferred to the reactor at about 75 L/min. Since the secondary heating loop reactor in the Dowtherm ^TM A heat transfer to the reactor, the temperature of the salt mixture was evaporated to approximately 218-250 ℃ (235 ℃), so that the reaction mixture can be heated from the salt by evaporating the further shift In addition to water, the water concentration is brought to about 10% by weight and the salt is further polymerized. The pressure on the reactor was adjusted to the secondary heating rings about 28KPa to about 97KPa (80KPa) such that the saturation temperature of the Dowtherm ^TM A was maintained at about 235 ℃. Thermal conduction and thermal conduction between the ring and the secondary heating of the reactor between the primary and secondary heating heater ring main ring sensible heat, wherein the secondary heating temperature of the loop reactor for the Dowtherm ^TM A ratio of no more than The saturation temperature of about 235 ° C is about 15 ° C larger or smaller. The reaction mixture was transferred to a flasher at about 60 L/min. Since the heater ring for two of the flasher in Dowtherm ^TM A heat transfer to the flasher, the reaction mixture was heated to about 270-290 ℃ (280 ℃), so that the flasher can further remove water from the reaction mixture, the concentration of the water Approximately 0.5% by weight is reached and the reaction mixture is further polymerized. The flasher pressure of the secondary heating loop is adjusted to about about 150KPa to 200KPa (180KPa) so that the saturation temperature of the Dowtherm ^TM A was maintained at about 280 ℃. Heating the heat conduction between the ring and the primary ring and the secondary heating heat conduction between the ring and the secondary heating flasher predominantly sensible heat, wherein the temperature change of the heater ring for two of the flasher of Dowtherm ^TM A ratio of no more than The saturation temperature of about 280 ° C is larger or smaller by about 15 ° C. The flashed mixture was transferred to the finisher at about 54 L/min, and the polymerization mixture was subjected to a vacuum to further remove water to a water concentration of about 0.1% by weight to bring the polyamine to a suitable final degree of polymerization. The finished polymerization mixture is then transferred to an extruder and granulator.

Example 2c. Therminol® 66 in the primary heating loop, wherein the evaporator, reactor and flasher are heated via a secondary heating ring and the water in the secondary ring is used in the evaporator

Therminol® 66 was heated to about 340 ° C and circulated through a primary heating loop in a nylon-6,6 manufacturing facility. The primary heating ring circulates Therminol® 66 between the power chamber and heat exchanger on the secondary heating ring and the heat exchangers operated by individual units. A secondary heating loop reactor and the flasher comprises Dowtherm ^TM A. The secondary heating ring for the evaporator contains water. Independently adjusting the pressure of the secondary heating loop to change or Dowtherm ^TM A water vaporization and condensation temperature, so as to precisely control the temperature of each of the specific operation of the apparatus of heated. Primary heating rings contain about 10,000,000L of Therminol® 66, and each of two heating rings contain from about 50,000L Dowtherm ^TM A or of water.

In a continuous nylon-6,6 manufacturing process, adipic acid and hexamethylenediamine are combined in water at approximately equimolar ratio to form an aqueous mixture containing nylon-6,6 salt and having about 50% by weight water. . The aqueous salt was transferred to the evaporator at about 105 L/min. The water in the secondary heating ring used in the evaporator transfers heat to the evaporator, so that the evaporator can heat the aqueous salt to about 125-135 ° C (130 ° C) and remove water from the heated aqueous salt to make the water concentration Up to about 30% by weight. The pressure of the secondary heating ring on the evaporator was adjusted to about 270 KPa to maintain the water saturation temperature at about 130 °C. The heat conduction between the primary heating ring and the secondary heating ring and the heat conduction between the secondary heating ring and the evaporator are mainly sensible heat, wherein the temperature of the water in the secondary heating ring for the evaporator does not exceed about 130 The saturation temperature of °C is larger or smaller by about 15 °C. The evaporated salt mixture was transferred to the reactor at about 75 L/min. Since the secondary heating loop reactor in the Dowtherm ^TM A heat transfer to the reactor, the temperature of the salt mixture was evaporated to approximately 218-250 ℃ (235 ℃), so that the reaction mixture can be heated from the salt by evaporating the further shift In addition to water, the water concentration is brought to about 10% by weight and the salt is further polymerized. The pressure on the reactor was adjusted to the secondary heating rings about 28KPa to about 97KPa (80KPa) such that the saturation temperature of the Dowtherm ^TM A was maintained at about 235 ℃. Thermal conduction and thermal conduction between the ring and the secondary heating of the reactor between the primary and secondary heating heater ring main ring sensible heat, wherein the secondary heating temperature of the loop reactor for the Dowtherm ^TM A ratio of no more than The saturation temperature of about 235 ° C is about 15 ° C larger or smaller. The reaction mixture was transferred to a flasher at about 60 L/min. Since the heater ring for two of the flasher in Dowtherm ^TM A heat transfer to the flasher, the reaction mixture was heated to about 270-290 ℃ (280 ℃), so that the flasher can further remove water from the reaction mixture, the concentration of the water Approximately 0.5% by weight is reached and the reaction mixture is further polymerized. The flasher pressure of the secondary heating loop is adjusted to about 150KPa to about 200 KPa (180KPa) so that the saturation temperature of the Dowtherm ^TM A was maintained at about 280 ℃. Heating the heat conduction between the ring and the primary ring and the secondary heating heat conduction between the ring and the secondary heating flasher predominantly sensible heat, wherein the temperature change of the heater ring for two of the flasher of Dowtherm ^TM A ratio of no more than The saturation temperature of about 280 ° C is larger or smaller by about 15 ° C. The flashed mixture was transferred to the finisher at about 54 L/min, and the polymerization mixture was subjected to a vacuum to further remove water to a water concentration of about 0.1% by weight to bring the polyamine to a suitable final degree of polymerization. The finished polymerization mixture is then transferred to an extruder and granulator.

Example 3a. Therminol® 66 in the primary heating loop, wherein the evaporator is heated via a secondary heating loop and the reactor and flasher are heated via a primary heating loop

Therminol® 66 was heated to about 340 ° C and circulated through a primary heating loop in a nylon-6,6 manufacturing facility. The primary heating ring circulates Therminol® 66 between the power chamber and heat exchanger on the secondary heating ring and the heat exchangers operated by individual units. Secondary heating ring containing Dowtherm ^TM A and for heating the evaporator. Two adjusting rings to alter the pressure of the heating and vaporization of the condensation temperature of the Dowtherm ^TM A to precisely control the temperature of the evaporator. Primary heating rings contain about 10,000,000L of Therminol® 66, and the secondary heating rings contain from about 50,000L of Dowtherm ^TM A.

In a continuous nylon-6,6 manufacturing process, adipic acid and hexamethylenediamine are combined in water at a substantially equal molar ratio to form a salt containing nylon-6,6 and having a water concentration of about 50% by weight. Aqueous mixture. The aqueous salt was transferred to the evaporator at about 105 L/min. Since for secondary heating of the evaporator in the loop Dowtherm ^TM A heat transfer to the evaporator, such that the aqueous salt evaporator may be heated to about 125-135 ℃ (130 ℃) and aqueous salt from the heated water is removed, so that The water concentration reached about 30% by weight. The evaporator pressure is adjusted to the secondary heating rings about 1KPa about 3KPa (2KPa) so that the saturation temperature of the Dowtherm ^TM A was maintained at about 130 ℃. Heating the heat conduction between the primary ring and the secondary heating and thermal conduction between the rings of two cyclic heating the evaporator predominantly sensible heat, wherein the secondary heating temperature for the evaporator of the loop of Dowtherm ^TM A ratio of no more than The saturation temperature of about 130 ° C is larger or smaller by about 15 ° C. The evaporated salt mixture was transferred to the reactor at about 75 L/min. The Therminol® 66 in the primary heating loop transfers heat to the reactor, bringing the temperature of the evaporated salt mixture to about 218-250 ° C (235 ° C), allowing the reactor to further remove water from the heated salt mixture. The water concentration reached about 10% by weight and caused the salt to further polymerize. The reaction mixture was transferred to a flasher at about 60 L/min. Heat transfer from Therminol® 66 in the primary heating loop to the flasher, heating the reaction mixture to about 270-290 ° C (280 ° C), allowing the flasher to further remove water from the reaction mixture to a water concentration of about 0.5% by weight And causing the reaction mixture to further polymerize. The flashed mixture was transferred to the finisher at about 54 L/min, and the polymerization mixture was subjected to a vacuum to further remove water to a water concentration of about 0.1% by weight to bring the polyamine to a suitable final degree of polymerization. The finished polymerization mixture is then transferred to an extruder and granulator.

Example 3b. Therminol® 66 in the primary heating loop, wherein the evaporator is heated via a secondary heating loop and the reactor and flasher are heated via a primary heating loop

Therminol® 66 was heated to about 340 ° C and circulated through a primary heating loop in a nylon-6,6 manufacturing facility. The primary heating ring circulates Therminol® 66 between the power chamber and heat exchanger on the secondary heating ring and the heat exchangers operated by individual units. The secondary heating ring contains water and is used to heat the evaporator. The pressure of the secondary heating ring is adjusted to change the vaporization and condensation temperatures of the water to precisely control the temperature of the evaporator. The primary heating ring contains approximately 10,000,000 L of Therminol® 66 and the secondary heating ring contains approximately 50,000 L of water.

In a continuous nylon-6,6 manufacturing process, adipic acid and hexamethylenediamine are combined in water at a substantially equal molar ratio to form a salt containing nylon-6,6 and having a water concentration of about 50% by weight. Aqueous mixture. The aqueous salt was transferred to the evaporator at about 105 L/min. Since for secondary heating of the evaporator in the loop Dowtherm ^TM A heat transfer to the evaporator, such that the aqueous salt evaporator may be heated to about 125-135 ℃ (130 ℃) and aqueous salt from the heated water is removed, so that The water concentration reached about 30% by weight. The pressure of the secondary heating ring on the evaporator was adjusted to about 270 KPa to maintain the water saturation temperature at about 130 °C. The heat conduction between the primary heating ring and the secondary heating ring and the heat conduction between the secondary heating ring and the evaporator are mainly sensible heat, wherein the temperature of the water in the secondary heating ring for the evaporator does not exceed about 130 The saturation temperature of °C is larger or smaller by about 15 °C. The evaporated salt mixture was transferred to the reactor at about 75 L/min. The Therminol® 66 in the primary heating loop transfers heat to the reactor, bringing the temperature of the evaporated salt mixture to about 218-250 ° C (235 ° C), allowing the reactor to further remove water from the heated salt mixture. The water concentration reached about 10% by weight and caused the salt to further polymerize. The reaction mixture was transferred to a flasher at about 60 L/min. Heat transfer from Therminol® 66 in the primary heating loop to the flasher, heating the reaction mixture to about 270-290 ° C (280 ° C), allowing the flasher to further remove water from the reaction mixture to a water concentration of about 0.5% by weight And causing the reaction mixture to further polymerize. The flashed mixture was transferred to the finisher at about 54 L/min, and the polymerization mixture was subjected to a vacuum to further remove water to a water concentration of about 0.1% by weight to bring the polyamine to a suitable final degree of polymerization. The finished polymerization mixture is then transferred to an extruder and granulator.

Example 4. Therminol® 66 in the primary heating loop where the reactor is heated via a secondary heating loop and the evaporator and flasher are heated via a primary heating loop

Therminol® 66 was heated to about 340 ° C and circulated through a primary heating loop in a nylon-6,6 manufacturing facility. The primary heating ring circulates Therminol® 66 between the power chamber and heat exchanger on the secondary heating ring and the heat exchangers operated by individual units. Secondary heating ring containing Dowtherm ^TM A and used to heat the reactor. Two adjusting rings to alter the pressure of the heating and vaporization of the condensation temperature of the Dowtherm ^TM A to precisely control the temperature of the reactor. Primary heating rings contain about 10,000,000L of Therminol® 66, and the secondary heating rings contain from about 50,000L of Dowtherm ^TM A.

In a continuous nylon-6,6 manufacturing process, adipic acid and hexamethylenediamine are combined in water at approximately equimolar ratio to form an aqueous mixture containing nylon-6,6 salt and having about 50% by weight water. . The aqueous salt was transferred to the evaporator at about 105 L/min. Therminol® 66 from the primary heating ring transfers heat to the evaporator, allowing the evaporator to heat the aqueous salt to about 125-135 ° C (130 ° C) and remove water from the heated aqueous salt to a water concentration of about 30 weight%. The evaporated salt mixture was transferred to the reactor at about 75 L/min. Since the secondary heating loop reactor in the Dowtherm ^TM A heat transfer to the reactor, the temperature of the salt mixture was evaporated to approximately 218-250 ℃ (235 ℃), so that the reaction mixture can be heated from the salt by evaporating the further shift In addition to water, the water concentration is brought to about 10% by weight and the salt is further polymerized. The pressure on the reactor was adjusted to the secondary heating rings about 28KPa to about 97KPa (80KPa) such that the saturation temperature of the Dowtherm ^TM A was maintained at about 235 ℃. Thermal conduction and thermal conduction between the ring and the secondary heating of the reactor between the primary and secondary heating heater ring main ring sensible heat, wherein the secondary heating temperature of the loop reactor for the Dowtherm ^TM A ratio of no more than The saturation temperature of about 235 ° C is about 15 ° C larger or smaller. The reaction mixture was transferred to a flasher at about 60 L/min. Heat transfer from Therminol® 66 in the primary heating loop to the flasher, heating the reaction mixture to about 270-290 ° C (280 ° C), allowing the flasher to further remove water from the reaction mixture to a water concentration of about 0.5% by weight And causing the reaction mixture to further polymerize. The flashed mixture was transferred to the finisher at about 54 L/min, and the polymerization mixture was subjected to a vacuum to further remove water to a water concentration of about 0.1% by weight to bring the polyamine to a suitable final degree of polymerization. The finished polymerization mixture is then transferred to an extruder and granulator.

Example 5. Therminol® 66 in the primary heating loop, where the flasher is heated via a secondary heating loop and the evaporator and reactor are heated via a primary heating loop

Therminol® 66 was heated to about 340 ° C and circulated through a primary heating loop in a nylon-6,6 manufacturing facility. The primary heating ring circulates Therminol® 66 between the power chamber and heat exchanger on the secondary heating ring and the heat exchangers operated by individual units. Secondary heating ring containing Dowtherm ^TM A and used to heat flasher. Two adjusting rings to alter the pressure of the heating and vaporization of the condensation temperature of the Dowtherm ^TM A to precisely control the temperature of the flasher. Primary heating rings contain about 10,000,000L of Therminol® 66, and the secondary heating rings contain from about 50,000L of Dowtherm ^TM A.

In a continuous nylon-6,6 manufacturing process, adipic acid and hexamethylenediamine are combined in water at approximately equimolar ratio to form a water containing nylon-6,6 salt and having about 50% by weight water. mixture. The aqueous salt was transferred to the evaporator at about 105 L/min. Therminol® 66 from the primary heating ring transfers heat to the evaporator such that the evaporator heats the aqueous salt to about 125-135 ° C (130 ° C) and removes water from the heated aqueous salt to a water concentration of about 30 weight%. The evaporated salt mixture was transferred to the reactor at about 75 L/min. The Therminol® 66 in the primary heating loop transfers heat to the reactor, bringing the temperature of the evaporated salt mixture to about 218-250 ° C (235 ° C), allowing the reactor to further remove water from the heated salt mixture. The water concentration reached about 10% by weight and caused the salt to further polymerize. The reaction mixture was transferred to a flasher at about 60 L/min. Since the heater ring for two of the flasher in Dowtherm ^TM A heat transfer to the flasher, the reaction mixture was heated to about 270-290 ℃ (280 ℃), so that the flasher can further remove water from the reaction mixture, the concentration of the water Approximately 0.5% by weight is reached and the reaction mixture is further polymerized. The flasher pressure of the secondary heating loop is adjusted to about about 150KPa to 200KPa (180KPa) so that the saturation temperature of the Dowtherm ^TM A was maintained at about 280 ℃. Heating the heat conduction between the ring and the primary ring and the secondary heating heat conduction between the ring and the secondary heating flasher predominantly sensible heat, wherein the temperature change of the heater ring for two of the flasher of Dowtherm ^TM A ratio of no more than The saturation temperature of about 280 ° C is larger or smaller by about 15 ° C. The flashed mixture was transferred to the finisher at about 54 L/min, and the polymerization mixture was subjected to a vacuum to further remove water to a water concentration of about 0.1% by weight to bring the polyamine to a suitable final degree of polymerization. The finished polymerization mixture is then transferred to an extruder and granulator.

Example 6. Therminol® 66 in the primary heating ring, wherein the salt paste is heated via a secondary heating ring and the salt evaporator, reactor and flasher are heated via the primary heating ring

Therminol® 66 was heated to about 340 ° C and circulated through a primary heating loop in a nylon-6,6 manufacturing facility. The primary heating ring circulates Therminol® 66 between the power chamber and heat exchanger on the secondary heating ring and the heat exchangers operated by individual units. Secondary heating ring Contains water and is used to heat the salt paste. The pressure of the secondary heating ring is adjusted to change the vaporization and condensation temperature of the water to precisely control the temperature of the salt paste. The primary heating ring contains approximately 10,000,000 L of Therminol® 66 and the secondary heating ring contains approximately 50,000 L of water.

In a continuous nylon-6,6 manufacturing process, adipic acid and hexamethylenediamine are combined in a salt paste at a substantially equal molar ratio to form a nylon-6,6 salt containing about 50% by weight. An aqueous mixture of water content. The water in the secondary heating ring for the salt paste is transferred to the salt paste to bring the temperature of the aqueous mixture to about 50 to 100 ° C (75 ° C). The pressure of the secondary heating ring on the salt paste was adjusted to about 40 KPa to maintain the water saturation temperature at about 75 °C. The heat conduction between the primary heating ring and the secondary heating ring and the heat conduction between the secondary heating ring and the salt paste are mainly sensible heat, wherein the temperature of the water used in the secondary heating ring of the salt paste does not exceed about 75 The saturation temperature of °C is high or low about 15 °C. The aqueous salt was transferred to the evaporator at about 105 L/min. Therminol® 66 from the primary heating ring transfers heat to the evaporator such that the evaporator heats the aqueous salt to about 125-135 ° C (130 ° C) and removes water from the heated aqueous salt to a water concentration of about 30 weight%. The evaporated salt mixture was transferred to the reactor at about 75 L/min. The Therminol® 66 in the primary heating loop transfers heat to the reactor, bringing the temperature of the evaporated salt mixture to about 218-250 ° C (235 ° C), allowing the reactor to further remove water from the heated salt mixture. The water concentration reached about 10% by weight and caused the salt to further polymerize. The reaction mixture was transferred to a flasher at about 60 L/min. Heat transfer from Therminol® 66 in the primary heating loop to the flasher, heating the reaction mixture to about 270-290 ° C (280 ° C), allowing the flasher to further remove water from the reaction mixture to a water concentration of about 0.5% by weight And causing the reaction mixture to further polymerize. The flashed mixture was transferred to the finisher at about 54 L/min, and the polymerization mixture was subjected to a vacuum to further remove water to a water concentration of about 0.1% by weight to bring the polyamine to a suitable final degree of polymerization. The finished polymerization mixture is then transferred to an extruder and granulator.

Example 7. Batch method, Therminol® 66 in the primary heating ring, where the autoclave is heated via a secondary heating ring

Therminol® 66 was heated to about 340 ° C and circulated through a primary heating loop in a nylon-6,6 manufacturing facility. The primary heating ring circulates Therminol® 66 between the power chamber and heat exchanger on the secondary heating ring and the heat exchangers operated by individual units. Secondary heating ring containing Dowtherm ^TM A and for heating the autoclave. Two adjusting rings to alter the pressure of the heating and vaporization of the condensation temperature of the Dowtherm ^TM A to control the temperature of the reactor. Primary heating rings contain about 10,000,000L of Therminol® 66, and the secondary heating rings contain from about 50,000L of Dowtherm ^TM A.

In a batch nylon-6,6 manufacturing process, adipic acid and hexamethylenediamine are combined in water at a substantially equal molar ratio to form a water containing nylon-6,6 salt having about 50% by weight water. mixture. The aqueous salt was transferred to the evaporator at about 105 L/min. Therminol® 66 from the primary heating ring transfers heat to the evaporator such that the evaporator heats the aqueous salt to about 125-135 ° C (130 ° C) and removes water from the heated aqueous salt to a water concentration of about 30 weight%. The evaporated salt mixture was transferred to the autoclave in a batch of about 100,000 L. Since the secondary heating ring Dowtherm ^TM A heat transfer to the reactor, the temperature of the mixture reached about 270-290 ℃ (280 ℃), from which the water is removed, the water concentration to about 0.1% by weight and such polyamides Achieve a suitable range of final polymerization. The pressure of the autoclave was heated two rings is adjusted to about about 150KPa to 200KPa (180KPa) so that the saturation temperature of the Dowtherm ^TM A was maintained at about 280 ℃. Heating the heat conduction between the primary ring and the secondary heating and thermal conduction between the rings of two cyclic autoclave was heated predominantly sensible heat, wherein the temperature of the secondary heating loop in the autoclave or Dowtherm ^TM A ratio of no more than about The saturation temperature of 280 ° C is larger or smaller by about 15 ° C. The finished polymerization mixture is transferred to an extruder and a granulator.

Example 8. Therminol® 66 in the primary heating ring, where the evaporator, reactor and flasher are heated via a secondary heating ring, with holes in the primary heating ring

Follow example 2a. Vulnerabilities in the primary heating ring allow the contents to enter the factory environment.

The liquid leaving the leaky Therminol® 66 is under relatively low pressure, limiting the material Total emissions of materials. Since the discharged liquid Therminol ® 66 is relatively non-volatile, the risk of explosion is close to zero and the risk of ignition is low and confined to the immediate vicinity of the leak.

Example 9. Therminol® 66 in the primary heating ring, where the evaporator, reactor and flasher are heated via a secondary heating ring, and there is a loophole in the secondary heating ring.

Follow example 2a. A leak has occurred in the secondary heating ring on the evaporator.

Compared to Example 1d and 1e, the use of smaller volumes in the secondary loop heated volatile Dowtherm ^TM A significantly reduced with the use of a pressurized high-temperature flammable vapors associated safety hazards. The smaller volume secondary heating ring limits the amount of emissions that occur compared to the primary heating rings of Examples 1d and 1e. Most plant can continue to operate the heating system, and comprising two closing Dowtherm ^TM A ring of fire or to fix the vulnerability.

The use of the terms and expressions are used in accordance with the description and are not intended to be limiting, and the use of such terms and expressions is not intended to exclude any feature equivalents or parts thereof. Various modifications may be made within the scope of this creation. Modifications and variations of the concepts disclosed herein may be resorted to by those of ordinary skill in the art and are considered to be within the scope of the present invention as defined by the appended claims.

Statement of this creation

This creation provides at least the following, and its number should not be interpreted as indicating the level of importance:

Statement 1 provides a method for preparing polyamines, the method comprising: heating a first flowable heat transfer medium to provide a heated first flowable heat transfer medium; from a heated first flowable heat transfer medium to a second The flowing heat transfer medium transfers heat to provide a heated second flowable heat transfer medium; and heat transfers from the heated second flowable heat transfer medium to at least one polyamine containing component of the polyamide synthesis system.

Statement 2 provides the method of Statement 1, wherein the polyamine synthesis system synthesizes polyamine from a linear synthesis of a linear dicarboxylic acid from a linear diamine or an oligomer formed from a linear dicarboxylic acid and a linear diamine .

Statement 3 provides the method of Statement 2, wherein the dicarboxylic acid has the structure HOC(O)-R ¹ -C(O)OH, wherein R ¹ is a C ₁ -C ₁₅ alkylene group.

Statement 4 provides the method of Statement 3 wherein the dicarboxylic acid is adipic acid.

Statement 5 provides the method of any one of statements 2 to 4, wherein the diamine has the structure H ₂ NR ² —NH ₂ , wherein R ² is a C ₁ -C ₁₅ alkylene group.

Statement 6 provides the method of Statement 5 wherein the diamine is hexamethylenediamine.

Statement 7 provides the method of any one of statements 2 to 6, wherein the polyamine is nylon-6,6.

The method of any one of statements 1 to 7, wherein at least one component of the polyamine synthesis system comprises at least one of a preheater, an evaporator, a polymerization reactor, a flasher, a finishing machine, and an autoclave .

Statement 9. The method of any one of statements 1 to 8, wherein the first flowable heat transfer medium has a lower vapor pressure than the second flowable heat transfer medium at standard temperature and pressure.

The method of any one of statements 1 to 9, wherein the heated second flowable heat transfer medium has a higher vapor pressure than the heated first flowable heat transfer medium.

The method of any one of statements 1 to 10, wherein the heated second flowable heat transfer medium is at least one of more combustible and more flammable than the heated first flowable heat transfer medium.

The method of any one of statements 1 to 11, wherein the first flowable heat transfer medium comprises at least one of water, polyethylene glycol, polypropylene glycol, mineral oil, polyoxygenated oil, diphenyl oxide, and biphenyl. One.

The method of any one of statements 1 to 12, wherein the first flowable heat transfer medium is trimethylpentane, C _10-13 alkane, C _10-13 isoalkane, C _14-30 alkyl aryl compound , diethylbenzene, ethylbenzene, cyclohexylbenzene, C _14-30 alkylbenzene, white petroleum mineral oil, ethyl diphenylethane, diphenylethane, diethyl diphenyl Alkane, diphenyl ether, diphenyl oxide, ethyl benzene polymer, biphenyl, inorganic salt, diisopropyl biphenyl, triisopropyl biphenyl, methyl cyclohexane, dicyclohexyl, terphenyl, Hydrogenated terphenyl, partially hydrogenated tetraphenyl, partially hydrogenated high carbon polyphenylene, diphenyl ether and phenanthrene, diaryl compound, triaryl compound, diaryl ether, triaryl ether, alkyl aryl compound and At least one of arylalkyl compounds.

The method of any one of statements 1 to 13, wherein the heated first flowable heat transfer medium is from about 280 ° C to about 400 ° C.

The method of any one of statements 1 to 14, wherein the heated first flowable heat transfer medium is from about 330 ° C to about 350 ° C.

The method of any one of statements 1 to 15, wherein the first flowable heat transfer medium and the heated first flowable heat transfer medium are substantially in a liquid phase.

The method of any one of statements 1 to 16, wherein the first flowable heat transfer medium substantially retains a liquid during heating of the first flowable heat transfer medium.

The method of any one of statements 1 to 17, wherein the first flowable heat transfer medium does not substantially vaporize during heating of the first flowable heat transfer medium.

The method of any one of statements 1 to 18, wherein the heat transferred to the first flowable heat transfer medium during the heating of the first flowable heat transfer medium comprises substantially all of the sensible heat.

Statement 20. The method statement of any one of 1 to 19, wherein the heated first flowable heat transfer medium substantially retains liquid during heat transfer from the heated first flowable heat transfer medium to the second flowable heat transfer medium .

The method of any one of statements 1 to 20, wherein the heated first flowable heat transfer medium does not substantially occur during heat transfer from the heated first flowable heat transfer medium to the second flowable heat transfer medium Condensation.

The method of any one of statements 1 to 21, wherein the heat transferred from the heated first flowable heat transfer medium during heat transfer from the heated first flowable heat transfer medium to the second flowable heat transfer medium Contains virtually all sensible heat.

Statement 23. The method statement of any one of 1 to 22, wherein the first flowable heat transfer medium and the heated first-flowable heat transfer medium are disposed in the first heating ring.

The method of any one of statements 1 to 23, wherein the first flowable heat transfer medium is heated from the heated first flowable heat transfer medium to the second flowable heat transfer medium, the method additionally comprising The used first flowable heat transfer medium is recycled back to the heating of the first flowable heat transfer medium.

The method of any one of statements 1 to 24, wherein the second flowable heat transfer medium is water, polyethylene glycol, polypropylene glycol, mineral oil, polyoxygenated oil, diphenyl oxide, biphenyl, and hydrazine At least one of benzene.

The method of any one of statements 1 to 25, wherein the second flowable heat transfer medium is trimethylpentane, C _10-13 alkane, C _10-13 isoalkane, C _14-30 alkyl aryl compound , diethylbenzene, ethylbenzene, cyclohexylbenzene, C _14-30 alkylbenzene, white petroleum mineral oil, ethyl diphenylethane, diphenylethane, diethyl diphenyl Alkane, diphenyl ether, diphenyl oxide, ethyl benzene polymer, biphenyl, inorganic salt, diisopropyl biphenyl, triisopropyl biphenyl, methyl cyclohexane, dicyclohexyl, terphenyl, Hydrogenated terphenyl, partially hydrogenated tetraphenyl, partially hydrogenated high carbon polyphenylene, diphenyl ether and phenanthrene, diaryl compound, triaryl compound, diaryl ether, triaryl ether, alkyl aryl compound and At least one of arylalkyl compounds.

Statement 27. The method statement of any one of 1 to 26, wherein the heated second flowable heat transfer medium is from about 210 °C to about 350 °C.

The method of any one of statements 1 to 27, wherein the heated second flowable heat transfer medium is from about 260 ° C to about 300 ° C.

The method of any one of statements 1 to 28, wherein the heated second flowable heat transfer medium is substantially in a liquid phase.

The method of any one of statements 1 to 29, wherein the heated second flowable heat transfer medium is substantially in the gas phase.

The method of any one of statements 1 to 30, wherein the second flowable heat transfer medium is substantially a gas during heat transfer from the heated first flowable heat transfer medium to the second flowable heat transfer medium.

The method of any one of statements 1 to 31, wherein the second flowable heat transfer medium is substantially completely vaporized during heat transfer from the heated first flowable heat transfer medium to the second flowable heat transfer medium.

Statement 33 provides a method of statement 32, the method additionally comprising controlling the pressure of the second flowable heat transfer medium to control the temperature at which the second flowable heat transfer medium vaporizes.

Statement 34 provides the method of statement 33, wherein the second heat transfer medium and the heated second heat transfer medium are disposed in the second heating ring, wherein controlling the pressure of the second flowable heat transfer medium comprises controlling the pressure in the second heating ring.

The method of any one of statements 33 to 34, wherein controlling the temperature at which the second flowable heat transfer medium vaporizes controls the temperature of the at least one polyamine-containing component of the polyamine synthesis system.

The method of any one of statements 1 to 35, wherein the heat transferred to the second flowable heat transfer medium during the heat transfer from the heated first flowable heat transfer medium to the second flowable heat transfer medium comprises substantially All latent heat containing vaporization heat.

The method of any one of statements 1 to 36, wherein the heat transferred to the second flowable heat transfer medium during the heat transfer from the heated first flowable heat transfer medium to the second flowable heat transfer medium comprises about 70 -100% contains latent heat of vaporization heat and about 0-30% sensible heat.

The method of any one of statements 1 to 37, wherein during the heat transfer from the heated second flowable heat transfer medium to the at least one polyamine-containing component of the polyamide synthesis system, the second heated The flowing heat transfer medium substantially condenses into a liquid.

Statement 39 provides the method of statement 38, the method additionally comprising controlling the pressure of the heated second flowable heat transfer medium to adjust the experienced flow of the heated second flowable heat transfer medium The temperature at least partially condensed.

Statement 40 provides the method of Statement 39, wherein controlling the temperature at which the heated second flowable heat transfer medium undergoes at least partial condensation controls the temperature of at least one polyamine-containing component of the polyamine synthesis system.

The method of any one of statements 39 to 40, wherein the second heat transfer medium and the heated second heat transfer medium are disposed in the second heating ring, wherein the controlled pressure of the heated second flowable heat transfer medium comprises The pressure in the second heating ring is controlled.

Statement 42 provides the method of statement 41, wherein controlling the pressure in the second heating loop comprises controlling a saturation temperature of the heated second flowable heat transfer medium.

Statement 43 provides the method of Statement 42, wherein the heated maximum temperature of the second flowable heat transfer medium is within about 0 to 40 ° C of the saturation temperature of the heated second flowable heat transfer medium.

The method of any one of statements 1 to 43 wherein the second heat-conducting element is heated during the heat transfer from the heated second flowable heat transfer medium to the at least one polyamine-containing component of the polyamide synthesis system The heat conducted by the flowable heat transfer medium contains substantially all of the latent heat containing heat of vaporization.

The method of any one of statements 1 to 44, wherein the second flowable heat conduction is during heat transfer from the heated second flowable heat transfer medium to the at least one polyamine-containing component of the polyamide synthesis system The heat conducted by the medium contains about 70-100% of latent heat including heat of vaporization and about 0-30% sensible heat.

The method of any one of statements 1 to 45, wherein the second flowable heat transfer medium is heated from the heated second flowable heat transfer medium to at least one component of the polyamide synthesis system to provide a used second flowable heat transfer medium, The method additionally includes recycling the used second flowable heat transfer medium back to the heat transfer from the heated first flowable heat transfer medium.

The method of any one of statements 1 to 46, wherein the heat transfer from the heated second flowable heat transfer medium to at least one component of the polyamide synthesis system comprises polymerizing the polyamide The temperature of at least one component of the synthesis system is maintained between about 150 ° C and about 350 ° C.

The method of any one of statements 1 to 47, wherein the heat transfer from the heated second flowable heat transfer medium to at least one component of the polyamide synthesis system comprises temperature of at least one component of the polyamine synthesis system Maintained at about 210 ° C to about 260 ° C.

The method of any one of statements 1 to 48, wherein the transferring heat from the heated second flowable heat transfer medium to at least one component of the polyamide synthesis system comprises maintaining the temperature of the polyamine mixture in the reactor at From about 218 ° C to about 250 ° C.

The method of any one of statements 1 to 49, wherein the first flowable heat transfer medium is heated from the heated first flowable heat transfer medium to the second flowable heat transfer medium, the method additionally comprising Transferring heat from the first flowable heat transfer medium used or from the heated first flowable heat transfer medium to the third flowable heat transfer medium to provide a heated third flowable heat transfer medium; and from the third heated The flowable heat transfer medium transfers heat to at least one polyamine-containing component of the polyamine synthesis system.

Statement 51 provides the method of statement 50, wherein at least one component of the polyamine synthesis system to which heat is transferred from the heated third flowable heat transfer medium and the heat transfer from the heated second flowable heat transfer medium thereto At least one component of the indoleamine synthesis system is different.

Statement 52 provides a method for preparing nylon-6,6, the method comprising: heating a first flowable heat transfer medium comprising terphenyl to provide a heated first flowable heat transfer medium; Flowing the heat transfer medium to transfer heat to a second flowable heat transfer medium comprising diphenyl oxide and biphenyl to provide a heated second flowable heat transfer medium and a used first flowable heat transfer medium, wherein the first flowable heat transfer medium The medium, the heated first flowable heat transfer medium, and the used first flowable heat transfer medium are disposed in the first heating ring, heating the first flowable heat transfer medium and heating the first flowable heat transfer medium During heat transfer to the second flowable heat transfer medium, the first flowable heat transfer medium, the heated first flowable heat transfer medium, and the used first flowable heat transfer medium are substantially liquid phase, conducted to the first flowable Heat of heat transfer medium and The heat conducted from the first flowable heat transfer medium comprises substantially all of the sensible heat, and during the heat transfer from the heated first flowable heat transfer medium to the second flowable heat transfer medium, the second flowable heat transfer medium is substantially completely vaporized Causing the used first flowable heat transfer medium back into the heating of the first flowable heat transfer medium; from the heated second flowable heat transfer medium to the preheater, evaporator, polymerization reactor, flasher Heat transfer of at least one component of the nylon-6,6 synthesis system of the finishing machine or autoclave to provide a second flowable heat transfer medium that has been used, wherein the second flowable heat transfer medium and the heated second flowable heat transfer The medium is disposed in the second heating ring, the second flowable heat conducting medium and the used second flowable heat conducting medium are substantially in a liquid phase, and the heated second flowable heat conducting medium is substantially in a liquid phase and is conducted The heat transferred to the second flowable heat transfer medium and the heat conducted from the second flowable heat transfer medium comprise about 70-100% of latent heat including heat of vaporization and about 0- 30% sensible heat; controlling the pressure of the second heat transfer ring to control the saturation temperature of the second flowable heat transfer medium, wherein controlling the saturation temperature controls the temperature of at least one polyamine-containing component of the polyamide synthesis system; The used second flowable heat transfer medium is recycled back to the heat transfer from the heated first flowable heat transfer medium.

Statement 53 provides a system for preparing polyamine, the system comprising: a heater configured to heat a first flowable heat transfer medium to provide a heated first flowable heat transfer medium; a first heat An exchanger configured to transfer heat from the heated first flowable heat transfer medium to provide a heated second flowable heat transfer medium; and a second heat exchanger configured to self-heat The second flowable heat transfer medium transfers heat to at least one of the polyamine-containing components of the polyamine synthesis system.

Statement 54 provides an apparatus for preparing polyamine, the apparatus comprising: a heater configured to heat a first flowable heat transfer medium to provide a heated first flowable heat transfer medium; a first heat An exchanger configured to transfer heat from the heated first flowable heat transfer medium to provide a heated second flowable heat transfer medium; and a second heat exchanger configured to self-heat Second flowable heat transfer medium At least one of the amine-containing synthesis systems transfers heat.

Statement 55 provides the apparatus of Statement 54, wherein the apparatus for preparing polyamine is configured to oligomerize from a linear dicarboxylic acid to a linear diamine or from a linear dicarboxylic acid to a linear diamine Synthesis of polyamine.

Statement 56 provides the apparatus of Statement 55, wherein the dicarboxylic acid has the structure HOC(O)-R ¹ -C(O)OH, wherein R ¹ is a C ₁ -C ₁₅ alkylene group.

Statement 57 provides the apparatus of Statement 56 wherein the dicarboxylic acid is adipic acid.

Statement 58 provides the apparatus of any one of statements 55 to 56, wherein the diamine has the structure H ₂ NR ² —NH ₂ , wherein R ² is a C ₁ -C ₁₅ alkylene group.

Statement 59 provides the device of Statement 58, wherein the diamine is hexamethylenediamine.

Statement 60 provides the method of any one of statements 55 to 59, wherein the polyamine is nylon-6,6.

The invention provides the apparatus of any one of statements 54 to 60, wherein the at least one polyamine-containing component of the polyamine synthesis system comprises a preheater, an evaporator, a polymerization reactor, a flasher, a finishing machine, and an autoclave At least one of them.

Statement 62 provides the apparatus of any one of statements 54 to 61, wherein the first flowable heat transfer medium has a lower vapor pressure than the second flowable heat transfer medium at standard temperature and pressure.

Statement 63 provides the apparatus of any one of statements 54 to 62, wherein the heated second flowable heat transfer medium has a higher vapor pressure than the heated first flowable heat transfer medium.

Statement 64 provides the apparatus of any one of statements 54 to 63, wherein the heated second flowable heat transfer medium is at least one of flammability and more flammable than the heated first flowable heat transfer medium.

The invention provides the apparatus of any one of statements 54 to 64, wherein the first flowable heat transfer medium comprises water, polyethylene glycol, polypropylene glycol, mineral oil, polyoxygenated oil, oxidized diphenyl oxide At least one of a base and a biphenyl.

Statement 66 provides the apparatus of any one of statements 54 to 65, wherein the first flowable heat transfer medium is trimethylpentane, C _10-13 alkane, C _10-13 isoalkane, C _14-30 alkyl aryl compound , diethylbenzene, ethylbenzene, cyclohexylbenzene, C _14-30 alkylbenzene, white petroleum mineral oil, ethyl diphenylethane, diphenylethane, diethyl diphenyl Alkane, diphenyl ether, diphenyl oxide, ethyl benzene polymer, biphenyl, inorganic salt, diisopropyl biphenyl, triisopropyl biphenyl, methyl cyclohexane, dicyclohexyl, terphenyl, Hydrogenated terphenyl, partially hydrogenated tetraphenyl, partially hydrogenated high carbon polyphenylene, diphenyl ether and phenanthrene, diaryl compound, triaryl compound, diaryl ether, triaryl ether, alkyl aryl compound and At least one of arylalkyl compounds.

The invention provides the apparatus of any one of statements 54 to 66, wherein the heated first flowable heat transfer medium is from about 280 ° C to about 400 ° C.

Statement 68 provides the device of any one of statements 54 to 67, wherein the heated first flowable heat transfer medium is between about 330 ° C and about 350 ° C.

The invention provides the device of any one of statements 54 to 68, wherein the first flowable heat transfer medium and the heated first flowable heat transfer medium are substantially in a liquid phase.

Statement 70 provides the apparatus of any one of statements 54 to 69, wherein the first flowable thermally conductive medium substantially retains a liquid during heating of the first flowable thermally conductive medium.

Statement 71 provides the apparatus of any one of statements 54 to 70, wherein the first flowable heat transfer medium does not substantially vaporize during heating of the first flowable heat transfer medium.

Statement 72 provides the apparatus of any one of statements 54 to 71, wherein the heat conducted to the first flowable heat transfer medium during heating of the first flowable heat transfer medium comprises substantially all of the sensible heat.

The statement 73 provides the apparatus of any one of statements 54 to 72, wherein the heated first flowable heat transfer medium substantially retains liquid during heat transfer from the heated first flowable heat transfer medium to the second flowable heat transfer medium .

The statement 74 provides the apparatus of any one of statements 54 to 73, wherein the heated first flowable heat transfer medium does not substantially occur during heat transfer from the heated first flowable heat transfer medium to the second flowable heat transfer medium Condensation.

The invention provides the apparatus of any one of statements 54 to 74, wherein the heat transferred from the heated first flowable heat transfer medium during heat transfer from the heated first flowable heat transfer medium to the second flowable heat transfer medium Contains virtually all sensible heat.

The statement 76 provides the apparatus of any one of statements 54 to 75, wherein the first flowable heat transfer medium and the heated first flowable heat transfer medium are disposed in the first heating ring.

The invention provides the apparatus of any one of statements 54 to 76, wherein the first flowable heat transfer medium is supplied from the heated first flowable heat transfer medium to the second flowable heat transfer medium, the apparatus additionally comprising The used first flowable heat transfer medium is recycled back to the heating of the first flowable heat transfer medium.

Statement 78 provides the apparatus of any one of statements 54 to 77, wherein the second flowable heat transfer medium is water, polyethylene glycol, polypropylene glycol, mineral oil, polyoxygenated oil, diphenyl oxide, biphenyl, and hydrazine At least one of benzene.

The invention provides the apparatus of any one of statements 54 to 78, wherein the second flowable heat transfer medium is trimethylpentane, C _10-13 alkane, C _10-13 isoalkane, C _14-30 alkyl aryl compound , diethylbenzene, ethylbenzene, cyclohexylbenzene, C _14-30 alkylbenzene, white petroleum mineral oil, ethyl diphenylethane, diphenylethane, diethyl diphenyl Alkane, diphenyl ether, diphenyl oxide, ethyl benzene polymer, biphenyl, inorganic salt, diisopropyl biphenyl, triisopropyl biphenyl, methyl cyclohexane, dicyclohexyl, terphenyl, Hydrogenated terphenyl, partially hydrogenated tetraphenyl, partially hydrogenated high carbon polyphenylene, diphenyl ether and phenanthrene, diaryl compound, triaryl compound, diaryl ether, triaryl ether, alkyl aryl compound and At least one of arylalkyl compounds.

Statement 80 provides the apparatus of any one of statements 54 to 79, wherein the heated second flowable heat transfer medium is between about 210 ° C and about 350 ° C.

Statement 81 provides the apparatus of any one of statements 54 to 80, wherein the heated second flowable heat transfer medium is between about 260 ° C and about 300 ° C.

Statement 82 provides the apparatus of any one of statements 54 to 81, wherein the heated second flowable heat transfer medium is substantially liquid phase.

Statement 83 provides the apparatus of any one of statements 54 to 82, wherein the heated second flowable heat transfer medium is substantially gas phase.

Statement 84 provides the apparatus of any one of statements 54 to 83, wherein the second flowable heat transfer medium is substantially a gas during heat transfer from the heated first flowable heat transfer medium to the second flowable heat transfer medium.

Statement 85 provides the apparatus of any one of statements 54 to 84, wherein the second flowable heat transfer medium is substantially completely vaporized during heat transfer from the heated first flowable heat transfer medium to the second flowable heat transfer medium.

The invention provides the device of any one of statements 1 to 85, wherein the second heat transfer medium and the heated second heat transfer medium are disposed in the second heating ring.

Statement 87 provides the apparatus of statement 86 wherein the second heating loop is configured to control the pressure of the second flowable heat transfer medium to control the temperature at which the second flowable heat transfer medium vaporizes.

Statement 88 provides the apparatus of Statement 87 wherein controlling the temperature at which the second flowable heat transfer medium vaporizes controls the temperature of at least one polyamine containing component of the polyamide synthesis system.

The invention provides the apparatus of any one of statements 54 to 88, wherein the heat transferred to the second flowable heat transfer medium during the heat transfer from the heated first flowable heat transfer medium to the second flowable heat transfer medium comprises substantially All latent heat containing vaporization heat.

The invention of claim 90, wherein the heat transferred to the second flowable heat transfer medium during heat transfer from the heated first flowable heat transfer medium to the second flowable heat transfer medium comprises about 70 Up to 100% contains latent heat of vaporization heat and about 0-30% sensible heat.

The invention provides the device of any one of statements 54 to 90, wherein during the heat transfer from the heated second flowable heat transfer medium to the at least one polyamine-containing component of the polyamide synthesis system, the second heated The flowing heat transfer medium substantially condenses into a liquid.

Statement 92 provides the apparatus of any one of statements 54 to 91, wherein the second heat transfer medium and the heated second heat transfer medium are disposed in the second heating ring.

Statement 93 provides the apparatus of statement 92, wherein the second heating loop is configured to control the pressure in the second heating loop to adjust the temperature at which the heated second flowable heat transfer medium undergoes at least partial condensation.

Statement 94 provides the apparatus of Statement 93, wherein controlling the temperature at which the heated second flowable heat transfer medium undergoes at least partial condensation controls the temperature of at least one polyamine-containing component of the polyamide synthesis system.

Statement 95 provides the apparatus of any one of statements 93 to 94, wherein controlling the pressure in the second heating loop comprises controlling a saturation temperature of the heated second flowable heat transfer medium.

Statement 96 provides the apparatus of Statement 95, wherein the maximum temperature of the heated second flowable heat transfer medium is within about 0 to 40 ° C of the saturation temperature of the heated second flowable heat transfer medium.

The invention provides the apparatus of any one of statements 54 to 96, wherein the second heat-conducting heat transfer medium is heated from the second heat-conducting heat-conducting medium to the polyamine-containing composition The heat conducted by the flowable heat transfer medium contains substantially all of the latent heat containing heat of vaporization.

The invention provides the apparatus of any one of statements 54 to 97, wherein the second flowable heat conduction is during heat transfer from the heated second flowable heat transfer medium to the at least one polyamine-containing component of the polyamide synthesis system The heat conducted by the medium contains about 70-100% of latent heat including heat of vaporization and about 0-30% sensible heat.

The invention provides the apparatus of any one of statements 54 to 98, wherein the second flowable heat transfer medium from the heating is provided for use in transferring heat to at least one component of the polyamide synthesis system. Following the second flowable thermally conductive medium, the apparatus additionally includes circulating the used second flowable heat transfer medium back to the heat transfer from the heated first flowable heat transfer medium.

The statement 100 provides the apparatus of any one of statements 54 to 99, wherein transferring heat from the heated second flowable heat transfer medium to at least one component of the polyamide synthesis system comprises contacting the temperature of at least one component of the polyamide synthesis system Maintained at about 150 ° C to about 350 ° C.

The invention of any one of clauses 54 to 100, wherein the heat transfer from the heated second flowable heat transfer medium to at least one component of the polyamide synthesis system comprises temperature of at least one component of the polyamine synthesis system Maintained at about 210 ° C to about 260 ° C.

The statement 102 provides the apparatus of any one of statements 54 to 101, wherein transferring heat from the heated second flowable heat transfer medium to at least one component of the polyamide synthesis system comprises maintaining the temperature of the polyamine mixture in the reactor at From about 218 ° C to about 250 ° C.

The statement 103 provides the apparatus of any one of statements 54 to 102, wherein the first flowable heat transfer medium is heated from the heated first flowable heat transfer medium to the second flowable heat transfer medium, wherein the first flowable heat transfer medium is used, wherein the second heat The exchanger is configured to transfer heat from the first flowable heat transfer medium used or from the heated first flowable heat transfer medium to the third flowable heat transfer medium to provide a heated third flowable heat transfer medium, The apparatus additionally includes a third heat exchanger configured to transfer heat from the heated third flowable heat transfer medium to the at least one polyamine-containing component of the polyamide synthesis system.

Statement 104 provides the apparatus of statement 103, wherein at least one component of the polyamine synthesis system to which heat is transferred from the heated third flowable heat transfer medium and the heat transfer from the heated second flowable heat transfer medium thereto At least one component of the indoleamine synthesis system is different.

Statement 105 provides a method for preparing nylon-6,6, the method comprising: a heater configured to heat a first flowable heat transfer medium comprising terphenyl to provide a heated first flowable a heat transfer medium; a first heat exchanger configured to transfer heat from the heated first flowable heat transfer medium to a second flowable heat transfer medium comprising diphenyl oxide and biphenyl to provide a heated first Two flowable heat transfer media and used a first flowable heat transfer medium and recycling the used first flowable heat transfer medium back to the first heat exchanger, wherein the first flowable heat transfer medium, the heated first flowable heat transfer medium, and the used first a flowable heat transfer medium disposed in the first heating ring, the first flowable heat transfer medium during heating of the first flowable heat transfer medium and from the heated first flowable heat transfer medium to the second flowable heat transfer medium The heated first flowable heat transfer medium and the used first flowable heat transfer medium are substantially in a liquid phase, and the heat transferred to the first flowable heat transfer medium and the heat conducted from the first flowable heat transfer medium comprise substantial All of the sensible heat, and during the heat transfer from the heated first flowable heat transfer medium to the second flowable heat transfer medium, the second flowable heat transfer medium is substantially completely vaporized; and a second heat exchanger is grouped State for heating from a second flowable heat transfer medium to a preheater, an evaporator, a polymerization reactor, a flasher, a finishing machine Heat transfer of at least one component of the nylon-6,6 synthesis system of the autoclave to provide a second flowable heat transfer medium that has been used, and to recycle the used second flowable heat transfer medium back to the first from the heated Flowable heat transfer medium heat transfer, wherein the second flowable heat transfer medium and the heated second flowable heat transfer medium are disposed in a second heating loop configured to control a saturation temperature of the second flowable heat transfer medium, wherein Controlling the saturation temperature controls the temperature of at least one polyamine-containing component of the polyamine synthesis system, the second flowable heat transfer medium and the second flowable heat transfer medium used are substantially liquid phase, and the second is heated The flowable heat transfer medium is substantially in a liquid phase, and the heat transferred to the second flowable heat transfer medium and the heat conducted from the second flowable heat transfer medium comprise about 70-100% of latent heat including heat of vaporization and about 0-30% heat.

Statement 106 provides an apparatus or method of any one or any combination of statements 1 to 105, which is optionally configured such that all of the elements or selections referenced may be used or selected.

10‧‧‧Systems or devices for the preparation of polyamines

15‧‧‧heater

20‧‧‧First flowable heat transfer medium

25‧‧‧Primary heating ring

30‧‧‧The first flowable heat transfer medium heated

35‧‧‧First heat exchanger

40‧‧‧Second flowable heat transfer medium

45‧‧‧secondary heating ring

50‧‧‧heated second flowable heat transfer medium

55‧‧‧second heat exchanger

Claims (53)

An apparatus for preparing polyamine, the apparatus comprising: a heater configured to heat a first flowable heat transfer medium to provide a heated first flowable heat transfer medium; a first heat exchanger Configuring to provide heat from the heated first flowable heat transfer medium to provide a heated second flowable heat transfer medium; and a second heat exchanger configured to be heated from the second The flowing heat transfer medium transfers heat to at least one polyamine-containing component of the polyamine synthesis system. The apparatus of claim 1, wherein the means for preparing polyamine is configured to oligomerize from a linear dicarboxylic acid to a linear diamine or from a linear dicarboxylic acid to a linear diamine. Synthesis of polyamine. The device of claim 2, wherein the dicarboxylic acid has the structure HOC(O)-R ¹ -C(O)OH, wherein R ¹ is a C ₁ -C ₁₅ alkylene group. The device of claim 3, wherein the dicarboxylic acid is adipic acid. The device of claim 2, wherein the diamine has the structure H ₂ NR ² —NH ₂ , wherein R ² is a C ₁ -C ₁₅ alkylene group. The device of claim 5, wherein the diamine is hexamethylenediamine. The device of claim 2, wherein the polyamine is nylon-6,6. The apparatus of claim 1, wherein the at least one polyamine-containing component of the polyamide synthesis system comprises at least one of a preheater, an evaporator, a polymerization reactor, a flasher, a finishing machine, and an autoclave. The device of claim 1 wherein the first flowable heat transfer medium has a lower vapor pressure than the second flowable heat transfer medium at standard temperature and pressure. The apparatus of claim 1 wherein the heated second flowable heat transfer medium has a higher vapor pressure than the heated first flowable heat transfer medium. The device of claim 1, wherein the heated second flowable heat transfer medium is at least one of more flammable and more flammable than the heated first flowable heat transfer medium. The device of claim 1, wherein the first flowable heat transfer medium comprises at least one of water, polyethylene glycol, polypropylene glycol, mineral oil, polyoxyxene oil, diphenyl oxide, and biphenyl. The device of claim 1, wherein the first flowable heat transfer medium is trimethylpentane, C _10-13 alkane, C _10-13 isoalkane, C _14-30 alkyl aryl compound, diethylbenzene, Ethylated benzene, cyclohexylbenzene, C _14-30 alkylbenzene, white petroleum mineral oil, ethyl diphenylethane, diphenylethane, diethyldiphenylethane, diphenyl ether, Diphenyl oxide, ethylbenzene polymer, biphenyl, inorganic salt, diisopropylbiphenyl, triisopropylbiphenyl, methylcyclohexane, dicyclohexyl, terphenyl, hydrogenated terphenyl, part Hydrogenated tetraphenyl, partially hydrogenated high carbon polyphenylene, diphenyl ether and phenanthrene, diaryl compound, triaryl compound, diaryl ether, triaryl ether, alkyl aryl compound and diaryl alkyl compound At least one. The device of claim 1, wherein the heated first flowable heat transfer medium is between 280 ° C and 400 ° C. The device of claim 1, wherein the heated first flowable heat transfer medium is between 330 ° C and 350 ° C. The device of claim 1, wherein the first flowable heat transfer medium and the heated first flowable heat transfer medium are substantially liquid phase. The device of claim 1 wherein the first flowable thermally conductive medium substantially retains a liquid during heating of the first flowable thermally conductive medium. The device of claim 1, wherein the first flowable heat transfer medium does not substantially vaporize during heating of the first flowable heat transfer medium. The device of claim 1, wherein during heating the first flowable heat transfer medium, The heat conducted to the first flowable heat transfer medium comprises substantially all of the sensible heat. The apparatus of claim 1 wherein the heated first flowable heat transfer medium substantially retains a liquid during heat transfer from the heated first flowable heat transfer medium to the second flowable heat transfer medium. The device of claim 1, wherein the heated first flowable heat transfer medium does not substantially condense during heat transfer from the heated first flowable heat transfer medium to the second flowable heat transfer medium. The apparatus of claim 1 wherein during the transfer of heat from the heated first flowable heat transfer medium to the second flowable heat transfer medium, heat transferred from the heated first flowable heat transfer medium comprises substantially all Sensible heat. The device of claim 1, wherein the first flowable heat transfer medium and the heated first flowable heat transfer medium are disposed in the first heating ring. The apparatus of claim 1, wherein the first flowable heat transfer medium is used to transfer heat from the heated first flowable heat transfer medium to the second flowable heat transfer medium, the apparatus additionally comprising allowing the used The first flowable heat transfer medium is circulated back to the heating of the first flowable heat transfer medium. The device of claim 1, wherein the second flowable heat transfer medium is at least one of water, polyethylene glycol, polypropylene glycol, mineral oil, polyoxygenated oil, diphenyl oxide, biphenyl, and terphenyl. The device of claim 1, wherein the second flowable heat transfer medium is trimethylpentane, C _10-13 alkane, C _10-13 isoalkane, C _14-30 alkyl aryl compound, diethylbenzene, Ethylated benzene, cyclohexylbenzene, C _14-30 alkylbenzene, white petroleum mineral oil, ethyl diphenylethane, diphenylethane, diethyldiphenylethane, diphenyl ether, Diphenyl oxide, ethylbenzene polymer, biphenyl, inorganic salt, diisopropylbiphenyl, triisopropylbiphenyl, methylcyclohexane, dicyclohexyl, terphenyl, hydrogenated terphenyl, part Hydrogenated tetraphenyl, partially hydrogenated high carbon polyphenylene, diphenyl ether and phenanthrene, diaryl compound, triaryl compound, diaryl ether, triaryl ether, alkyl aryl compound and diaryl alkyl compound At least one. The device of claim 1, wherein the heated second flowable heat transfer medium is 210 ° C to 350 ° C. The device of claim 1, wherein the heated second flowable heat transfer medium is 260 ° C to 300 ° C. The device of claim 1 wherein the heated second flowable heat transfer medium is substantially in a liquid phase. The device of claim 1 wherein the heated second flowable heat transfer medium is substantially gas phase. The device of claim 1, wherein the second flowable heat transfer medium is substantially a gas during heat transfer from the heated first flowable heat transfer medium to the second flowable heat transfer medium. The device of claim 1, wherein the second flowable heat transfer medium is substantially completely vaporized during heat transfer from the heated first flowable heat transfer medium to the second flowable heat transfer medium. The device of claim 1, wherein the second heat transfer medium and the heated second heat transfer medium are disposed in the second heating ring. The apparatus of claim 33, wherein the second heating loop is configured to control a pressure of the second flowable heat transfer medium to control a temperature at which the second flowable heat transfer medium vaporizes. The apparatus of claim 34, wherein controlling the temperature at which the second flowable heat transfer medium vaporizes controls the temperature of the at least one polyamine-containing component of the polyamide synthesis system. The device of claim 1, wherein the second flowable heat is transferred during heat transfer from the heated first flowable heat transfer medium to the second flowable heat transfer medium The heat of the conducting medium contains substantially all of the latent heat containing heat of vaporization. The device of claim 1, wherein during heat transfer from the heated first flowable heat transfer medium to the second flowable heat transfer medium, heat transferred to the second flowable heat transfer medium comprises 70-100% comprising vaporization Heat of latent heat and 0-30% sensible heat. The apparatus of claim 1, wherein the heated second flowable heat transfer medium is during heat transfer from the heated second flowable heat transfer medium to the at least one polyamine-containing component of the polyamide synthesis system Substantially condenses into a liquid. The device of claim 1, wherein the second heat transfer medium and the heated second heat transfer medium are disposed in the second heating ring. The apparatus of claim 39, wherein the second heating loop is configured to control a pressure of the heated second flowable heat transfer medium to adjust a temperature at which the heated second flowable heat transfer medium undergoes at least partial condensation . A device as claimed in claim 40, wherein the temperature at which the heated second flowable heat transfer medium is subjected to the at least partial condensation is controlled to control the temperature of the at least one polyamine-containing component of the polyamide synthesis system. The apparatus of claim 40, wherein controlling the pressure in the second heating loop comprises controlling a saturation temperature of the heated second flowable heat transfer medium. The apparatus of claim 42, wherein the maximum temperature of the heated second flowable heat transfer medium is within 0 to 40 ° C of the saturation temperature of the heated second flowable heat transfer medium. The apparatus of claim 1, wherein the second flowable heat transfer from the heated during the heat transfer from the heated second flowable heat transfer medium to the at least one polyamine-containing component of the polyamide synthesis system The heat conducted by the medium contains substantially all of the latent heat containing heat of vaporization. The apparatus of claim 1 wherein during the heat transfer from the heated second flowable heat transfer medium to the at least one polyamine-containing component of the polyamide synthesis system The heat conducted by the second flowable heat transfer medium comprises 70-100% latent heat including heat of vaporization and 0-30% sensible heat. The apparatus of claim 1 wherein the heated second flowable heat transfer medium provides heat to the at least one component of the polyamide synthesis system to provide a used second flowable heat transfer medium, the apparatus additionally comprising The used second flowable heat transfer medium is circulated back to the heat transfer from the heated first flowable heat transfer medium. The apparatus of claim 1, wherein the transferring heat from the heated second flowable heat transfer medium to the at least one component of the polyamide synthesis system comprises maintaining a temperature of the at least one component of the polyamide synthesis system at 150 ° C to 350 ° C. The apparatus of claim 1, wherein the transferring heat from the heated second flowable heat transfer medium to the at least one component of the polyamide synthesis system comprises maintaining a temperature of the at least one component of the polyamide synthesis system at 210 ° C to 260 ° C. The apparatus of claim 1, wherein the transferring heat from the heated second flowable heat transfer medium to the at least one component of the polyamide synthesis system comprises maintaining a temperature of the polyamine mixture in the reactor at 218 ° C to 250 °C. The apparatus of claim 1, wherein the first flowable heat transfer medium is supplied from the heated first flowable heat transfer medium to the second flowable heat transfer medium, wherein the second heat exchanger is Configuring to provide heat to the third flowable heat transfer medium from the heated first flowable heat transfer medium to provide a heated third flowable heat transfer medium; the apparatus additionally comprising a third heat exchanger The state is for transferring heat from the heated third flowable heat transfer medium to at least one polyamine-containing component of the polyamide synthesis system. The apparatus of claim 50, wherein the at least one component of the polyamine synthesis system that transfers heat from the heated third flowable heat transfer medium is associated with heat transfer from the heated second flowable heat transfer medium At least one of the polyamine synthesis systems The components are different. A device for preparing nylon-6,6, the device comprising: a heater configured to heat a first flowable heat transfer medium comprising terphenyl to provide a heated first flowable heat transfer medium; a heat exchanger configured to provide heat from the second flowable heat transfer medium comprising diphenyl oxide and biphenyl from the heated first flowable heat transfer medium to provide heated second flowable heat transfer a medium and a first flowable heat transfer medium used, and circulating the used first flowable heat transfer medium back to the first heat exchanger, wherein the first flowable heat transfer medium, the first heated a flowable heat transfer medium and the used first flowable heat transfer medium are disposed in the first heating ring, heating the first flowable heat transfer medium and from the heated first flowable heat transfer medium to the second The first flowable heat transfer medium, the heated first flowable heat transfer medium, and the used first flowable heat transfer medium are substantially during heat transfer of the flowable heat transfer medium In the liquid phase, the heat transferred to the first flowable heat transfer medium and the heat conducted from the first flowable heat transfer medium comprise substantially all sensible heat, and from the heated first flowable heat transfer medium to the first During the heat transfer of the two flowable heat transfer medium, the second flowable heat transfer medium is substantially completely vaporized; and the second heat exchanger is configured to pass from the heated second flowable heat transfer medium to the preheater , at least one component of the nylon-6,6 synthesis system of the evaporator, polymerization reactor, flasher, finishing machine or autoclave transfers heat, provides a second flowable heat transfer medium that has been used, and allows the used The second flowable heat transfer medium circulates back to the heat transfer from the heated first flowable heat transfer medium, Wherein the second flowable heat transfer medium and the heated second flowable heat transfer medium are disposed in a second heating loop configured to control a saturation temperature of the second flowable heat transfer medium, wherein the saturation temperature is controlled That is, controlling the temperature of the at least one polyamine-containing component of the polyamine synthesis system, the second flowable heat transfer medium and the used second flowable heat transfer medium being substantially in a liquid phase, the heated first The second flowable heat transfer medium is substantially liquid phase, and the heat transferred to the second flowable heat transfer medium and the heat conducted from the second flowable heat transfer medium comprise 70-100% latent heat including vaporization heat and 0-30% Sensible heat. A system for preparing polyamine, the system comprising: a heater configured to heat a first flowable heat transfer medium to provide a heated first flowable heat transfer medium; a first heat exchanger Configuring to provide heat from the heated first flowable heat transfer medium to provide a heated second flowable heat transfer medium; and a second heat exchanger configured to be heated from the second The flowing heat transfer medium transfers heat to at least one polyamine-containing component of the polyamine synthesis system.