CN105664796B - Vertical esterification Prepolycondensating reactor and the method for being esterified prepolymerization reaction - Google Patents
Vertical esterification Prepolycondensating reactor and the method for being esterified prepolymerization reaction Download PDFInfo
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- CN105664796B CN105664796B CN201610097835.2A CN201610097835A CN105664796B CN 105664796 B CN105664796 B CN 105664796B CN 201610097835 A CN201610097835 A CN 201610097835A CN 105664796 B CN105664796 B CN 105664796B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/04—Pressure vessels, e.g. autoclaves
- B01J3/048—Multiwall, strip or filament wound vessels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/14—Production of inert gas mixtures; Use of inert gases in general
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
- C08G63/181—Acids containing aromatic rings
- C08G63/183—Terephthalic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/78—Preparation processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/18—Details relating to the spatial orientation of the reactor
- B01J2219/185—Details relating to the spatial orientation of the reactor vertical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/24—Stationary reactors without moving elements inside
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- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
The present invention relates to a kind of vertical esterification Prepolycondensating reactor and the method for being esterified prepolymerization reaction, room under esterification upper chamber and precondensation is separated into by arc-shaped partition in tower body, material inlet and gaseous phase outlet are provided with the top of esterification upper chamber, bottom is provided with nitrogen inlet, and side wall is provided with esterification material outlet；Room bottom is connected with preheater under precondensation, and esterification material outlet is connected with preheater charging aperture, and preheater discharging opening is connected with room bottom under precondensation；Indoor chamber is provided with multilayer tower tray under precondensation, and the top barrel of room is provided with polymer discharge mouth and vacuum orifice under precondensation.Material is introduced into esterification upper chamber and carries out esterification, carboxylate enters preheater under pressure difference and potential difference effect, it is preheated after enter precondensation under room carry out polycondensation, material in room under precondensation from bottom to top during the degree of polymerization incrementally increase, finally from polymer discharge mouth discharge.Esterification room and precondensation room are connected as a single entity by the present invention, and compact-sized, heat loss is small, and production efficiency is high.
Description
Technical field
The present invention relates to a kind of vertical esterification Prepolycondensating reactor, and the invention further relates to a kind of side for being esterified prepolymerization reaction
Method, belong to polyester producing process field.
Background technology
In the prior art, esterification during production of polyester and polycondensation reaction are typically in separate reaction tower or reaction
Carried out in kettle, such as Publication No. CN101618304B Chinese invention patent, a kind of esterifier is disclosed, by polylith column plate
Form, a downspout and a riser are all installed on every block of column plate, riser connects rotatable gas distributor, gas
Distributor is made up of air entraining pipe, fan blades and nozzle.Every block of column plate all retains the liquid of certain liquid level, has solid catalysis in liquid
Agent.Liquid phase is the component containing carboxylic acid, flows to next block of column plate, the alcohol with rising by one block of esterification column plate downwards in the reactor
Steam counter-flow reacts.
Publication No. CN2741645 Chinese utility model patent, disclose a kind of contracting in polycondensation reaction device field
Poly- reaction tower, including the double Shell being made up of inner housing and shell body, are chuck between inner housing and shell body, on shell body
The heating agent import and export of chuck is communicated with, the steam outlet port of inner casing intracoelomic cavity, charging aperture are communicated with double Shell and is gone out
Material mouth, the double Shell are uprightly set, and charging aperture is arranged at double Shell top and stretched into inner housing, and discharging opening is arranged at
The bottom of double Shell, is provided with some horizontally disposed tower trays between charging aperture and discharging opening, the tower tray includes housing, housing
It is interior to be provided with some material leakage passages.Traditionally esterification and polycondensation reaction are divided into two reactors and carried out, and structure is not compact enough, accounts for
Ground area is big, low production efficiency.
The content of the invention
The primary and foremost purpose of the present invention is, overcomes problems of the prior art, there is provided a kind of vertical esterification precondensation
Reactor, compact-sized, floor space is small, and production efficiency is high.
To solve above technical problem, a kind of vertical esterification Prepolycondensating reactor of the invention, include the vertical column of closing
Body, the vertical column body is interior to be separated into room under esterification upper chamber and precondensation, the barrel peripheral hardware of the esterification upper chamber by arc-shaped partition
There is an esterification heating jacket, the barrel of room is externally provided with precondensation heating jacket under the precondensation；Set at the top of the esterification upper chamber
There are material inlet and esterification upper chamber gaseous phase outlet, the bottom centre of the arc-shaped partition is provided with nitrogen inlet, the esterification upper chamber
Side wall be provided with esterification material outlet；The bottom of room is connected with esterification material preheater, the esterification material under the precondensation
The low head bottom of preheater is provided with preheater charging aperture, and the esterification material outlet is by being esterified fluid level control valve and carboxylate
Discharge nozzle is connected with the preheater charging aperture, and auxiliary agent import is connected with the carboxylate discharge nozzle, and the esterification material is pre-
The preheater discharging opening of hot device upper end is connected with the bottom inlet of room under the precondensation；The inner chamber of room is under under the precondensation
And multilayer tower tray is provided with, the top barrel of room is provided with polymer discharge mouth, the polymer discharge mouth under the precondensation
It is connected by precondensation fluid level control valve with polymer discharge pipe, the top of the polymer discharge mouth is provided with vacuum orifice.
Relative to prior art, the present invention achieves following beneficial effect：PTA powders and ethylene glycol be mixed with beating after from thing
Expect that import enters esterification upper chamber, nitrogen enters esterification upper chamber from the nitrogen inlet of arc-shaped partition bottom, and material, which is stirred, to be made
It is well mixed, and under the hot environment of esterification upper chamber, with ethylene glycol esterification occurs for PTA powders, is esterified the work of upper chamber
Pressure is 0.5~2bar（Gauge pressure）, gaseous substance caused by esterification from esterification upper chamber gaseous phase outlet discharge, esterification material from
Material outlet discharge is esterified, enters carboxylate discharge nozzle by being esterified fluid level control valve, auxiliary agent is added to ester by auxiliary agent import
In compound discharge nozzle；In the presence of potential difference and pressure difference, it is esterified material and auxiliary agent enters preheater charging aperture, it is pre- in esterification material
In hot device, excessive ethylene glycol gasification generation bubble, bubble are from bottom to top moved to material with motive force, played simultaneously in auxiliary agent
Stirring action；Esterification material is upwardly into room under precondensation after being heated, and continues partial esterification reaction, while enter polycondensation
Process；The vacuum orifice of room is positioned at topmost under precondensation, more higher toward upper strata vacuum, the vacuum in ceiling portion under precondensation
For 1~10kpa（Absolute pressure）, material progressively carries out polymerisation when through tower tray layer by layer, makes material from bottom to top
During the degree of polymerization incrementally increase, finally from polymer discharge mouth discharge.The reactor will be esterified room and precondensation room is linked as one
Body, compact-sized, floor space is small, and heat loss is few, and room under precondensation can be flowed to from esterification upper chamber without extra power material,
Without mechanical stirring device, energy consumption has been saved, has reduced fault rate, has improved production efficiency.
As a further improvement on the present invention, the bottom centre of the esterification upper chamber is provided with horizontally disposed and is centrosymmetric
Cyclone agitator disk, the cyclone agitator disk is hollow cylinder plate, bottom centre and the nitrogen of the cyclone agitator disk
Import is connected, and multiple nitrogen jet mouths are evenly distributed with the circumferential wall of the cyclone agitator disk, each nitrogen jet mouth
Outside is respectively equipped with the nitrogen water conservancy diversion arc for making nitrogen tangentially project, and the root of each nitrogen water conservancy diversion arc connects respectively
It is connected in the circumferential wall of the cyclone agitator disk.Nitrogen enters the inner chamber of cyclone agitator disk from the bottom centre of cyclone agitator disk,
Sprayed from each nitrogen jet mouth, by the water conservancy diversion of nitrogen water conservancy diversion arc, nitrogen is along nitrogen water conservancy diversion arc tip circle everywhere
Tangential direction project, esterification upper chamber bottom form horizontal vortex, fully material can be stirred, nitrogen project
Also to move upwards afterwards and secondary agitation is formed to material, ensure that material is thoroughly mixed uniformly.
As the improvement of the present invention, the inner wall lower of the esterification upper chamber is provided with circumferentially and the outer of upper end open is led
Flow cartridge, forms esterification discharging annular groove between the external flow guiding cylinder and the upper chamber interior walls of esterification, the external flow guiding cylinder is provided with outer water conservancy diversion
Cylinder material outlet communicates with the esterification discharging annular groove, the bottom phase of the esterification material outlet and the esterification discharging annular groove
It is logical；The inner chamber of the external flow guiding cylinder is provided with the inner draft tube of line coaxially therewith, between the inner draft tube and the external flow guiding cylinder
Annular section be located above the excircle of the cyclone agitator disk, the upper port of the inner draft tube is upper less than external flow guiding cylinder
Port；The inner chamber of the esterification upper chamber is provided with the center expects pipe extended downward into along axis in the middle part of inner draft tube, the center material
The upper end of pipe is connected with the material inlet.It is strong that the nitrogen that cyclone agitator disk projects forms the material of esterification upper chamber bottom
Circulation, under the thermal convection current double action of nitrogen and heating coil, material is empty along the ring-type between inner draft tube and external flow guiding cylinder
Between move upwards；Material inside inner draft tube flows downward, and the state that stream circulates inside and outside formation, new material is from center expects pipe
Lower port flow downward out after, that is, be involved in stream circulation in stirred；PTA powders occur with ethylene glycol at high temperature
Esterification, as new material constantly enters, the material reacted enters ester from the external flow guiding cylinder material outlet of external flow guiding cylinder
Material annular groove is dissolved, continues reaction thoroughly being esterified in heating jacket under the heating of heating agent during flowing, is finally discharged from esterification
The esterification material outlet discharge of annular groove bottom.
As a further improvement on the present invention, annulus is provided with multigroup esterification between the external flow guiding cylinder and inner draft tube
Heating coil, every group of heating medium for heating coil pipe are respectively equipped with esterification heating coil Heating medium and the outlet of esterification heating coil heating agent.
PTA powders and ethylene glycol are between external flow guiding cylinder and inner draft tube while stirring, while being esterified kettle heating dish in annulus
Pipe heats, and can be needed to determine the group number of the esterifying kettle heating coil of input heating according to technique.
As a further improvement on the present invention, short transverse of the external flow guiding cylinder material outlet along the external flow guiding cylinder is erected
To extending downwardly, the inner chamber of the esterification discharging annular groove is provided with upper chamber radial direction diaphragm, the external flow guiding cylinder material outlet and
The esterification material outlet is located at the both sides of the upper chamber radial direction diaphragm respectively；The top of top tray goes out provided with polymer
Expect annular groove, the bottom of the polymer discharge annular groove is connected under the precondensation on the barrel of room, the polymer discharge ring
Groove is provided with vertically extending polymer material overflow port, the bottom phase of the polymer discharge mouth and the polymer discharge annular groove
Logical, the inner chamber of the polymer discharge annular groove is provided with lower room radial direction diaphragm, the polymer material overflow port and the polymer
Discharging opening is located at the both sides of the lower room radial direction diaphragm respectively.Upper chamber radial direction diaphragm will be esterified material outlet with leading outside
Flow cartridge material outlet separates, and can prevent the material in esterification discharging annular groove from short stream occurs, and makes material in esterification discharges annular groove
Stroke with maximum, material, which enters, to be esterified after discharging annular groove in the form of laminar flow, is rounded along cylinder inboard wall, material exists
Continue to be esterified heating jacket heating during advance, finally extend material in ester from esterification material outlet outflow, the structure
Dissolve the heat time in material annular groove.Lower room radial direction diaphragm separates polymer material overflow port and polymer discharge mouth, can be with
Prevent the material in polymer discharge annular groove from short stream occurs, make material that there is maximum stroke, thing in polymer discharge annular groove
After expecting into polymer discharge annular groove in the form of laminar flow, rounded along cylinder inboard wall, material continues during advance
Heated by precondensation heating jacket, finally flowed out from polymer discharge mouth, the structure extends material in polymer discharge annular groove
In heat time.
As a further improvement on the present invention, the top of the polymer discharge annular groove is provided with foam trapping disk, the bubble
Foam trapping disk is horizontally set under the precondensation on the cross section of room and positioned at the lower section of the vacuum orifice.In polymerization process
A large amount of bubbles can be produced, foam trapping disk can prevent the vacuum orifice of the bubble entrance top of room under precondensation and vacuum meter from connecing
Mouthful.
As a further improvement on the present invention, the material of multiple insertion tower trays is respectively uniformly distributed on each layer tower tray
Tedge, the material deflector cup of line coaxially therewith, each material baffling are covered each by above each material tedge
Cover and be connected to for fornix shape and lower port on the tower tray, deflector cup is uniformly provided with the lower circumference of each material deflector cup
Discharging opening.Material is advanced into the inner chamber of material deflector cup from material tedge, and then baffling is downwards from material deflector cup bottom
Deflector cup discharging opening outflow on circumference.Due to the polycondensation of the swabbing action of room top vacuum orifice and material under precondensation
Journey, the vacuum highest in the top formation air cavity of each layer of material deflector cup, most last layer material deflector cup air cavity are more past
Vacuum in lower material deflector cup air cavity is progressively successively decreased, and material from bottom to top passes sequentially through each layer tower tray and material deflector cup
During progressively carry out polymerisation, material degree of polymerization during from bottom to top incrementally increases.
As a further improvement on the present invention, the low head inner chamber of the esterification material preheater is respectively equipped with horizontally disposed
Material distribution plate, be evenly distributed with multiple material dispensing orifices on the material distribution plate.Esterification material and auxiliary agent pass through material
After numerous material dispensing orifices of distribution plate, it can more uniformly enter each heat exchanging pipe of top.
As a further improvement on the present invention, the barrel of the esterification upper chamber is provided with upper chamber interface of the level gauge and the ester
The bottom for dissolving material annular groove communicates, and the aperture of the esterification fluid level control valve is controlled by the liquid level of the esterification discharging annular groove；Institute
The barrel for stating room under precondensation communicates provided with lower room interface of the level gauge with the bottom of the polymer discharge annular groove, the preshrunk
The aperture of poly- fluid level control valve is controlled by the liquid level of the polymer discharge annular groove；The bottom of the esterification heating jacket is provided with upper
Room Heating medium, the top of the esterification heating jacket export provided with upper chamber heating agent；The bottom of the precondensation heating jacket is set
There is lower room Heating medium, the top of the precondensation heating jacket exports provided with lower room heating agent；The esterification material preheater
Shell side bottom is provided with preheater Heating medium, and the shell side top of the esterification material preheater exports provided with preheater heating agent；Institute
The top for stating esterification upper chamber is provided with pressure gauge connection, and the top of room is provided with vacuum meter interface under the precondensation.
It is another object of the present invention to overcome problems of the prior art, there is provided one kind esterification precondensation is anti-
The method answered, floor space is small, and heat loss is few, and production efficiency is high.
To solve above technical problem, the method for present invention esterification prepolymerization reaction, in turn include the following steps：⑴PTA
Powder and ethylene glycol enter the inner draft tube of esterification upper chamber through center expects pipe after being mixed with beating, nitrogen is each from cyclone agitator disk
Nitrogen jet mouth sprays, and forms horizontal vortex in the bottom of esterification upper chamber by the water conservancy diversion of nitrogen water conservancy diversion arc, nitrogen is upward
Motion forms secondary agitation to material, and material is under the thermal convection current double action of nitrogen and heating coil along inner draft tube with leading outside
Annulus between flow cartridge moves upwards, and the material inside inner draft tube flows downward, and stream circulates inside and outside formation；(2) in height
With ethylene glycol in esterification upper chamber esterification occurs for the lower PTA powders of temperature, and the gauge pressure for being esterified upper chamber is 0.5~2bar, esterification
Caused gaseous substance is discharged from esterification upper chamber gaseous phase outlet；As new material constantly enters, the material reacted is led from outside
Flow cartridge material outlet enters esterification discharging annular groove, and being flowed one week in esterification discharges annular groove and continuing to be heated makes reaction thorough,
Finally from esterification material outlet discharge, enter carboxylate discharge nozzle by being esterified fluid level control valve, be esterified opening for fluid level control valve
Degree is controlled by the liquid level of esterification discharging annular groove, and auxiliary agent is added in carboxylate discharge nozzle；(3) in the presence of potential difference and pressure difference,
Esterification material and auxiliary agent enter preheater and pass through material distribution plate, excessive ethylene glycol gasification generation bubble, bubble in auxiliary agent
Upward movement progress material simultaneously stirs；Esterification material is upwardly into room under precondensation after being heated；(4) the thing in room under precondensation
Material sequentially passes through each layer tower tray and continues partial esterification reaction upwards, and enters polycondensation process；When through tower tray, material from
The inner chamber of material deflector cup is advanced on material tedge, then baffling is downwards from the deflector cup in material deflector cup lower circumference
Discharging opening is flowed out, and air cavity is formed at the top of material deflector cup；The absolute pressure in ceiling portion is 1~10kpa under precondensation, most upper
Vacuum highest in one layer of material deflector cup air cavity, more down progressively successively decreases, material degree of polymerization during from bottom to top
Incrementally increase, into polymer discharge annular groove, flowed one week in polymer discharge annular groove and continue to be heated, finally from polymerization
Thing discharging opening is discharged, and enters polymer discharge pipe by precondensation fluid level control valve.
Relative to prior art, the present invention achieves following beneficial effect：Esterification room and precondensation room are linked as by the present invention
One, compact-sized, floor space is small, and heat loss is few, can be flowed to without extra power material from esterification upper chamber under precondensation
Room, no mechanical stirring device, has saved energy consumption, reduces fault rate, improves production efficiency.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description, accompanying drawing only provide with reference to
Illustrate to use, be not used to the limitation present invention.
Fig. 1 is the structural representation of the vertical esterification Prepolycondensating reactor of the present invention.
Fig. 2 is the flow direction of material figure of esterification discharging annular groove.
Fig. 3 is the sectional view of cyclone agitator disk.
Fig. 4 is the structural representation of material distribution plate.
Fig. 5 is the enlarged drawing at A positions in Fig. 1.
Fig. 6 is the flow direction of material figure of polymer discharge annular groove.
In figure：1. it is esterified upper chamber；1a. material inlets；1b. is esterified upper chamber gaseous phase outlet；1c. nitrogen inlets；The outer water conservancy diversion of 1d.
Cylinder；1d1. external flow guiding cylinder material outlets；1e. esterification discharging annular groove；1e1. upper chamber radial direction diaphragms；1f. is esterified material outlet；
1g. inner draft tubes；1h. cyclone agitator disks；1h1. nitrogen jet mouths；1h2. nitrogen water conservancy diversion arcs；1j. upper chamber liquid level gauges connect
Mouthful；1k. pressure gauge connections；1m. upper chamber Heating mediums；1n. upper chambers heating agent exports；1p. is esterified heating coil；
2. room under precondensation；2a. tower trays；2a1. material tedges；2a2. material deflector cups；2a3. deflector cup discharging openings；
2b. polymer discharge annular grooves；2b1. polymer material overflow ports；Radial direction diaphragm in room under 2b2.；2c. polymer discharge mouths；2d. steeps
Foam traps disk；2e. vacuum orifices；Room interface of the level gauge under 2f.；2g. vacuum meter interfaces；Room Heating medium under 2h.；Room under 2j.
Heating agent exports；
3. it is esterified material preheater；3a. preheater charging apertures；3b. preheater discharging openings；3c. preheater Heating mediums；
3d. preheaters heating agent exports；3e. material distribution plates；3e1. material dispensing orifices；
G1. carboxylate discharge nozzle；G1a. auxiliary agent import；G2. polymer discharge pipe；V1. it is esterified fluid level control valve；V2. it is pre-
Polycondensation fluid level control valve.
Embodiment
As shown in Figures 1 to 6, vertical esterification Prepolycondensating reactor of the invention includes the vertical tower body of closing, vertical column
Room 2 under esterification upper chamber 1 and precondensation is separated into by arc-shaped partition in vivo, the barrel of esterification upper chamber 1 is externally provided with esterification heating jacket,
The barrel of room 2 is externally provided with precondensation heating jacket under precondensation；The top for being esterified upper chamber 1 is provided with material inlet 1a and esterification upper chamber
Gaseous phase outlet 1b, the bottom centre of arc-shaped partition are provided with nitrogen inlet 1c, and the side wall of esterification upper chamber 1 is provided with esterification material outlet
1f, the top of esterification upper chamber 1 are provided with pressure gauge connection 1k.
The bottom of room 2 is connected with esterification material preheater 3 under precondensation, and the low head bottom of esterification material preheater 3 is set
There are preheater charging aperture 3a, esterification material outlet 1f to enter by being esterified fluid level control valve V1 and carboxylate discharge nozzle G1 with preheater
Material mouth 3a is connected, and auxiliary agent import G1a, the preheater discharging of esterification material preheater 3 upper end are connected with carboxylate discharge nozzle G1
Mouth 3b is connected with the bottom inlet of room under precondensation 2.
The inner chamber of room 2 is provided with multilayer tower tray 2a from bottom to top under precondensation, and the top barrel of room 2 is provided with poly- under precondensation
Compound discharging opening 2c, polymer discharge mouth 2c are connected by precondensation fluid level control valve V2 with polymer discharge pipe G2, polymer
Discharging opening 2c top is provided with vacuum orifice 2e and vacuum meter interface 2g.
PTA powders and ethylene glycol from material inlet 1a enter esterification upper chamber 1 after being mixed with beating, and nitrogen is from arc-shaped partition bottom
Nitrogen inlet 1c enter esterification upper chamber 1, material, which is stirred, makes it well mixed, under the hot environment of esterification upper chamber 1,
With ethylene glycol esterification occurs for PTA powders, and the operating pressure of esterification upper chamber 1 is 0.5~2bar（Gauge pressure）, esterification generation
Gaseous substance from esterification upper chamber gaseous phase outlet 1b discharge, esterification material from esterification material outlet 1f discharge, by being esterified liquid level
Control valve V1 enters carboxylate discharge nozzle G1, and auxiliary agent is added in carboxylate discharge nozzle G1 by auxiliary agent import G1a.In potential difference and
In the presence of pressure difference, it is esterified material and auxiliary agent enters preheater charging aperture 3a, it is excessive in auxiliary agent in material preheater 3 is esterified
Ethylene glycol gasification produce bubble, bubble is from bottom to top moved to material with motive force, while plays stirring action.It is esterified material
Room 2 under precondensation are upwardly into after being heated, continue partial esterification reaction, while enter polycondensation process.Room 2 under precondensation
Vacuum orifice 2e positioned at topmost, more higher toward upper strata vacuum, the vacuum in ceiling portion is 1~10kpa under precondensation（Absolutely
To pressure）, material progressively carries out polymerisation when through tower tray layer by layer, make material during from bottom to top the degree of polymerization by
Step increase, is finally discharged from polymer discharge mouth 2c.
The bottom centre of esterification upper chamber 1 is provided with cyclone agitator disk 1h that is horizontally disposed and being centrosymmetric, cyclone agitator disk
1h is hollow cylinder plate, and cyclone agitator disk 1h bottom centre is connected with nitrogen inlet 1c, cyclone agitator disk 1h circumferential wall
On be evenly distributed with multiple nitrogen jet mouth 1h1, being respectively equipped with the outside of each nitrogen jet mouth 1h1 makes what nitrogen tangentially projected
Nitrogen water conservancy diversion arc 1h2, each nitrogen water conservancy diversion arc 1h2 root are connected in cyclone agitator disk 1h circumferential wall.
Nitrogen enters cyclone agitator disk 1h inner chamber from cyclone agitator disk 1h bottom centre, is sprayed from each nitrogen jet mouth 1h1, warp
Nitrogen water conservancy diversion arc 1h2 water conservancy diversion is crossed, nitrogen projects along the tangential direction of nitrogen water conservancy diversion arc tip circle everywhere, is being esterified
Horizontal vortex is formed on the bottom of upper chamber 1, and fully material can be stirred, and nitrogen will also move to material upwards after projecting
Secondary agitation is formed, ensures that material is thoroughly mixed uniformly.
Be esterified upper chamber 1 inner wall lower be provided with circumferentially and upper end open external flow guiding cylinder 1d, external flow guiding cylinder 1d with
Formation esterification discharging annular groove 1e, external flow guiding cylinder 1d are provided with external flow guiding cylinder material outlet 1d1 with being esterified between being esterified the inwall of upper chamber 1
Discharging annular groove 1e is communicated, and esterification material outlet 1f communicates with esterification discharging annular groove 1e bottom；External flow guiding cylinder 1d inner chamber is provided with
The inner draft tube 1g of line coaxially therewith, the annular section between inner draft tube 1g and external flow guiding cylinder 1d are located at cyclone agitator disk 1h's
Above excircle, inner draft tube 1g upper port is less than external flow guiding cylinder 1d upper port；The inner chamber for being esterified upper chamber 1 is provided with along axis
The center expects pipe extended downward into the middle part of inner draft tube 1g, the upper end of center expects pipe are connected with material inlet 1a.
The nitrogen that cyclone agitator disk 1h is projected makes the material of esterification upper chamber bottom form strong circulation, in nitrogen and heating
Under the thermal convection current double action of coil pipe, material moves upwards along the annulus between inner draft tube 1g and external flow guiding cylinder 1d；It is interior
Material inside guide shell 1g flows downward, the state that stream circulates inside and outside formation, new material from the lower port of center expects pipe to
After lower outflow, that is, it is involved in stream circulation and is stirred；With ethylene glycol esterification occurs for PTA powders at high temperature,
As new material constantly enters, the material reacted enters from external flow guiding cylinder 1d external flow guiding cylinder material outlet 1d1 to be esterified out
Expect annular groove 1e, continue reaction thoroughly being esterified in heating jacket under the heating of heating agent during flowing, finally from esterification discharging ring
The esterification material outlet 1f discharges of groove 1e bottoms.
Annulus is provided with multigroup esterification heating coil 1p, every group of heating medium for heating between external flow guiding cylinder 1d and inner draft tube 1g
Coil pipe is respectively equipped with esterification heating coil Heating medium and the outlet of esterification heating coil heating agent.PTA powders are led outside with ethylene glycol
While stir in annulus between flow cartridge 1d and inner draft tube 1g, while the heating of kettle heating coil is esterified, and can root
Need to determine the group number for putting into the esterifying kettle heating coil heated according to technique.
Short transverses of the external flow guiding cylinder material outlet 1d1 along external flow guiding cylinder 1d extends vertically downwards, esterification discharging annular groove 1e
Inner chamber be provided with upper chamber radial direction diaphragm 1e1, external flow guiding cylinder material outlet 1d1 with esterification material outlet 1f be located at upper chamber respectively
Radial direction diaphragm 1e1 both sides；The top of top tray is provided with polymer discharge annular groove 2b, polymer discharge annular groove 2b bottom
Portion is connected under precondensation on the barrel of room 2, and polymer discharge annular groove 2b is provided with vertically extending polymer material overflow port
2b1, polymer discharge mouth 2c communicate with polymer discharge annular groove 2b bottom, and polymer discharge annular groove 2b inner chamber is provided with lower room
Radial direction diaphragm 2b2, polymer material overflow port 2b1 are with polymer discharge mouth 2c respectively positioned at lower room radial direction diaphragm 2b2's
Both sides.
Upper chamber radial direction diaphragm 1e1 separates material outlet 1f and external flow guiding cylinder material outlet 1d1 is esterified, and can prevent
Short stream occurs for the material in esterification discharging annular groove 1e, material is had maximum stroke in esterification discharging annular groove 1e, material enters
Enter after esterification discharging annular groove 1e in the form of laminar flow, rounded along cylinder inboard wall, material continues by ester during advance
Change heating jacket heating, finally from esterification material outlet 1f outflows, the structure extends material in esterification discharging annular groove 1e
Heat time.Lower room radial direction diaphragm 2b2 separates polymer material overflow port 2b1 and polymer discharge mouth 2c, can prevent from gathering
Short stream occurs for the material in compound discharging annular groove 2b, material is had maximum stroke, material in polymer discharge annular groove 2b
After into polymer discharge annular groove 2b in the form of laminar flow, rounded along cylinder inboard wall, material continues during advance
Heated by precondensation heating jacket, finally flowed out from polymer discharge mouth 2c, the structure extends material in polymer discharge ring
Heat time in groove 2b.
Polymer discharge annular groove 2b top is provided with foam trapping disk 2d, and foam trapping disk 2d is horizontally set under precondensation
On the cross section of room 2 and positioned at vacuum orifice 2e lower section.A large amount of bubbles can be produced in polymerization process, foam trapping disk 2d can be with
The bubble of room 2 under precondensation is prevented to enter the vacuum orifice 2e and vacuum meter interface 2g of top.
Material the tedge 2a1, each material tedge 2a1 of multiple insertion tower trays are respectively uniformly distributed on each layer tower tray 2a
Top be covered each by the material deflector cup 2a2 of line coaxially therewith, each material deflector cup 2a2 is fornix shape and lower port connects
On tower tray 2a, deflector cup discharging opening 2a3 is uniformly provided with each material deflector cup 2a2 lower circumference.Material rises from material
Material deflector cup 2a2 inner chamber is advanced on pipe 2a1, then baffling is downwards from the baffling in material deflector cup 2a2 lower circumferences
Cover discharging opening 2a3 flows out.Due to room top vacuum orifice 2e swabbing action under precondensation and the polycondensation process of material, each
Air cavity formed on layer material deflector cup 2a2 top, the vacuum highest in most last layer material deflector cup air cavity, more down material
Vacuum in deflector cup air cavity is progressively successively decreased, and material from bottom to top passes sequentially through each layer tower tray and material deflector cup 2a2 mistake
Polymerisation is progressively carried out in journey, material degree of polymerization during from bottom to top incrementally increases.
The low head inner chamber of esterification material preheater 3 is respectively equipped with horizontally disposed material distribution plate 3e, material distribution plate
Multiple material dispensing orifice 3e1 are evenly distributed with 3e.Material and auxiliary agent is esterified to distribute by material distribution plate 3e numerous materials
After the 3e1 of hole, it can more uniformly enter each heat exchanging pipe of top.
The barrel of esterification upper chamber 1 is provided with upper chamber interface of the level gauge 1j and communicated with esterification discharging annular groove 1e bottom, is esterified
Fluid level control valve V1 aperture is controlled by esterification discharging annular groove 1e liquid level；The barrel of room 2 is provided with lower room liquid level under precondensation
Meter interface 2f communicates with polymer discharge annular groove 2b bottom, and precondensation fluid level control valve V2 aperture is controlled by polymer discharge
Annular groove 2b liquid level.
The bottom of esterification heating jacket is provided with upper chamber Heating medium 1m, and the top for being esterified heating jacket goes out provided with upper chamber heating agent
Mouth 1n；The bottom of precondensation heating jacket is provided with lower room Heating medium 2h, and the top of precondensation heating jacket is provided with lower room heating agent
Export 2j；The shell side bottom of esterification material preheater 3 is provided with preheater Heating medium 3c, is esterified on the shell side of material preheater 3
Portion is provided with preheater heating agent outlet 3d.
The method of present invention esterification prepolymerization reaction, in turn includes the following steps：(1) PTA powders and ethylene glycol are mixed with beating
Enter the inner draft tube 1g of esterification upper chamber 1 by center expects pipe, nitrogen sprays from cyclone agitator disk 1h each nitrogen jet mouth 1h1
Go out, form horizontal vortex in the bottom of esterification upper chamber 1 by nitrogen water conservancy diversion arc 1h2 water conservancy diversion, nitrogen is moved to thing upwards
Material forms secondary agitation, and material is under the thermal convection current double action of nitrogen and heating coil along inner draft tube 1g and external flow guiding cylinder 1d
Between annulus move upwards, the material inside inner draft tube 1g flows downward, inside and outside formation stream circulate.
(2) with ethylene glycol in esterification upper chamber 1 esterification occurs for PTA powders at high temperature, and the gauge pressure of esterification upper chamber 1 is 0.5
~2bar, gaseous substance caused by esterification are discharged from esterification upper chamber gaseous phase outlet 1b；As new material constantly enters, instead
The material answered enters esterification discharging annular groove 1e from external flow guiding cylinder material outlet 1d1, is flowed one week in esterification discharging annular groove 1e
And continue be heated make reaction thorough, finally from esterification material outlet 1f discharge, by be esterified fluid level control valve V1 enter esterification
Thing discharge nozzle G1, esterification fluid level control valve V1 aperture are controlled by esterification discharging annular groove 1e liquid level, and auxiliary agent is from auxiliary agent import G1a
It is added in carboxylate discharge nozzle G1.
(3) in the presence of potential difference and pressure difference, it is esterified material and auxiliary agent enters preheater and passes through material distribution plate 3e, help
The gasification of excessive ethylene glycol produces bubble in agent, and the upward movement progress material of bubble simultaneously stirs；It is esterified after material is heated upwards
Room 2 under into precondensation.
(4) material sequentially passes through each floor tower tray and continues partial esterification reaction upwards in room 2 under precondensation, and enters
Polycondensation process；When through tower tray 2a, material is advanced into material deflector cup 2a2 inner chamber from material tedge 2a1, then rolls over
From the deflector cup discharging opening 2a3 outflows in material deflector cup lower circumference under flow direction, gas is formed at material deflector cup 2a2 top
Chamber；The absolute pressure in ceiling portion is 1~10kpa under precondensation, the vacuum highest in most last layer material deflector cup air cavity, more
Down progressively successively decrease, material degree of polymerization during from bottom to top incrementally increases, and into polymer discharge annular groove 2b, is polymerizeing
Flowed one week in thing discharging annular groove 2b and continue to be heated, finally discharged from polymer discharge mouth 2c, pass through precondensation liquid level control
Valve V2 processed enters polymer discharge pipe G2.
It the foregoing is only the preferable possible embodiments of the present invention, non-therefore the limitation present invention patent protection model
Enclose.In addition to the implementation, the present invention can also have other embodiment.All skills formed using equivalent substitution or equivalent transformation
Art scheme, all falls within the protection domain of application claims.Technical characteristic of the invention without description can be by or using now
There is technology realization, will not be repeated here.
Claims (10)
1. a kind of vertical esterification Prepolycondensating reactor, include the vertical tower body of closing, it is characterised in that：In the vertical column body by
Arc-shaped partition is separated into room under esterification upper chamber and precondensation, and the barrel of the esterification upper chamber is externally provided with esterification heating jacket, described
The barrel of room is externally provided with precondensation heating jacket under precondensation；The top of the esterification upper chamber is provided with material inlet and esterification upper chamber
Gaseous phase outlet, the bottom centre of the arc-shaped partition are provided with nitrogen inlet, and the side wall of the esterification upper chamber is provided with esterification material and gone out
Mouthful；The bottom of room is connected with esterification material preheater under the precondensation, and the low head bottom of the esterification material preheater is set
There is preheater charging aperture, the esterification material outlet enters by being esterified fluid level control valve and carboxylate discharge nozzle with the preheater
Material mouth is connected, and auxiliary agent import, the preheater discharging of the esterification material preheater upper end are connected with the carboxylate discharge nozzle
Mouth is connected with the bottom inlet of room under the precondensation；The inner chamber of room is provided with multilayer tower tray, institute from bottom to top under the precondensation
The top barrel for stating room under precondensation is provided with polymer discharge mouth, and the polymer discharge mouth passes through precondensation fluid level control valve
It is connected with polymer discharge pipe, the top of the polymer discharge mouth is provided with vacuum orifice.
2. vertical esterification Prepolycondensating reactor according to claim 1, it is characterised in that：In the bottom of the esterification upper chamber
The heart is provided with cyclone agitator disk that is horizontally disposed and being centrosymmetric, and the cyclone agitator disk is hollow cylinder plate, the cyclone
The bottom centre of agitator disk is connected with the nitrogen inlet, and multiple nitrogen are evenly distributed with the circumferential wall of the cyclone agitator disk
Jet, the nitrogen water conservancy diversion arc for making nitrogen tangentially project is respectively equipped with the outside of each nitrogen jet mouth, it is each described
The root of nitrogen water conservancy diversion arc is connected in the circumferential wall of the cyclone agitator disk.
3. vertical esterification Prepolycondensating reactor according to claim 2, it is characterised in that：Under the inwall of the esterification upper chamber
Portion be provided with circumferentially and upper end open external flow guiding cylinder, formed and be esterified out between the external flow guiding cylinder and the upper chamber interior walls of esterification
Expect annular groove, the external flow guiding cylinder is provided with external flow guiding cylinder material outlet and communicated with the esterification discharging annular groove, the esterification material
Export and communicated with the bottom of the esterification discharging annular groove；The inner chamber of the external flow guiding cylinder is provided with the inner draft tube of line coaxially therewith,
Annular section between the inner draft tube and the external flow guiding cylinder is located above the excircle of the cyclone agitator disk, described interior
The upper port of guide shell is less than the upper port of external flow guiding cylinder；The inner chamber of the esterification upper chamber, which is provided with along axis, extends downward into interior lead
Center expects pipe in the middle part of flow cartridge, the upper end of the center expects pipe are connected with the material inlet.
4. vertical esterification Prepolycondensating reactor according to claim 3, it is characterised in that：The external flow guiding cylinder and Inner guide
Annulus is provided with multigroup esterification heating coil between cylinder, and every group of heating medium for heating coil pipe is respectively equipped with esterification heating coil heating agent and entered
Mouth and the outlet of esterification heating coil heating agent.
5. vertical esterification Prepolycondensating reactor according to claim 3, it is characterised in that：The external flow guiding cylinder material outlet
Extend vertically downwards along the short transverse of the external flow guiding cylinder, it is described esterification discharging annular groove inner chamber be provided with upper chamber radial direction water conservancy diversion every
Plate, the external flow guiding cylinder material outlet are located at the both sides of the upper chamber radial direction diaphragm with the esterification material outlet respectively；
The top of top tray is provided with polymer discharge annular groove, and the bottom of the polymer discharge annular groove is connected to room under the precondensation
Barrel on, the polymer discharge annular groove is provided with vertically extending polymer material overflow port, the polymer discharge mouth with
The bottom of the polymer discharge annular groove communicates, and the inner chamber of the polymer discharge annular groove is provided with lower room radial direction diaphragm, institute
State the both sides that polymer material overflow port is located at the lower room radial direction diaphragm with the polymer discharge mouth respectively.
6. vertical esterification Prepolycondensating reactor according to claim 5, it is characterised in that：The polymer discharge annular groove
Top is provided with foam trapping disk, and the foam trapping disk is horizontally set under the precondensation on the cross section of room and positioned at described
The lower section of vacuum orifice.
7. vertical esterification Prepolycondensating reactor according to claim 1, it is characterised in that：It is equal respectively on each layer tower tray
The even material tedges that multiple insertion tower trays are distributed with, line coaxially therewith is covered each by above each material tedge
Material deflector cup, each material deflector cup is fornix shape and lower port is connected on the tower tray, each material deflector cup
Lower circumference on be uniformly provided with deflector cup discharging opening.
8. vertical esterification Prepolycondensating reactor according to claim 1, it is characterised in that：The esterification material preheater
Low head inner chamber is respectively equipped with horizontally disposed material distribution plate, and multiple material distribution are evenly distributed with the material distribution plate
Hole.
9. vertical esterification Prepolycondensating reactor according to claim 1, it is characterised in that：On the barrel of the esterification upper chamber
Communicated provided with upper chamber interface of the level gauge with the bottom of the esterification discharging annular groove, the aperture of the esterification fluid level control valve is controlled by
The liquid level of the esterification discharging annular groove；The barrel of room goes out provided with lower room interface of the level gauge with the polymer under the precondensation
The bottom of material annular groove communicates, and the aperture of the precondensation fluid level control valve is controlled by the liquid level of the polymer discharge annular groove；Institute
The bottom for stating esterification heating jacket is provided with upper chamber Heating medium, and the top of the esterification heating jacket exports provided with upper chamber heating agent；
The bottom of the precondensation heating jacket is provided with lower room Heating medium, and the top of the precondensation heating jacket is provided with lower room heating agent
Outlet；The shell side bottom of the esterification material preheater is provided with preheater Heating medium, the shell side of the esterification material preheater
Top exports provided with preheater heating agent；The top of the esterification upper chamber is provided with pressure gauge connection, the top of room under the precondensation
Provided with vacuum meter interface.
It is anti-that 10. a kind of vertical esterification Prepolycondensating reactor using any one of claim 5 to 9 carries out esterification precondensation
The method answered, it is characterised in that in turn include the following steps：(1) enter after PTA powders and ethylene glycol are mixed with beating through center expects pipe
Enter to be esterified the inner draft tube of upper chamber, nitrogen sprays from each nitrogen jet mouth of cyclone agitator disk, by nitrogen water conservancy diversion arc
Water conservancy diversion form horizontal vortex in the bottom of esterification upper chamber, motion forms secondary agitation to nitrogen to material upwards, and material is in nitrogen
And moved upwards along the annulus between inner draft tube and external flow guiding cylinder under the thermal convection current double action of heating coil, Inner guide
Material inside cylinder flows downward, and stream circulates inside and outside formation；(2) PTA powders are being esterified upper chamber with ethylene glycol at high temperature
Esterification, the gauge pressure for being esterified upper chamber is 0.5~2bar, and gaseous substance caused by esterification is arranged from esterification upper chamber gaseous phase outlet
Go out；As new material constantly enters, the material reacted enters esterification discharging annular groove from external flow guiding cylinder material outlet, is being esterified
Being flowed one week in discharging annular groove and continuing to be heated makes reaction thorough, finally from esterification material outlet discharge, by being esterified liquid level
Control valve enters carboxylate discharge nozzle, and the aperture for being esterified fluid level control valve is controlled by the liquid level of esterification discharging annular groove, and auxiliary agent is added
It is added in carboxylate discharge nozzle；(3) in the presence of potential difference and pressure difference, it is esterified material and auxiliary agent enters preheater and passes through material
Distribution plate, in auxiliary agent the gasification of excessive ethylene glycol produce bubble, the upward movement progress material of bubble simultaneously stirs；Esterification material is added
Room under precondensation is upwardly into after heat；(4) material sequentially passes through each floor tower tray and continues part ester upwards in room under precondensation
Change reaction, and enter polycondensation process；When through tower tray, material is advanced into the inner chamber of material deflector cup from material tedge,
Then baffling forms gas downwards from the deflector cup discharging opening outflow in material deflector cup lower circumference at the top of material deflector cup
Chamber；The absolute pressure in ceiling portion is 1~10kpa under precondensation, the vacuum highest in most last layer material deflector cup air cavity, more
Down progressively successively decrease, material degree of polymerization during from bottom to top incrementally increases, into polymer discharge annular groove, in polymer
Flowed one week in discharging annular groove and continue to be heated, finally discharged from polymer discharge mouth, entered by precondensation fluid level control valve
Enter polymer discharge pipe.
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| CN106390879A (en) * | 2016-07-13 | 2017-02-15 | 北京华福工程有限公司 | A first-stage to second-stage shift converter |
| CN111393624A (en) * | 2020-05-20 | 2020-07-10 | 中国石油化工股份有限公司 | Reaction system and method for producing high molecular weight polyester by continuous melt polycondensation |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1229419A (en) * | 1996-09-04 | 1999-09-22 | 株式会社日立制作所 | Method and apparatus for continuous polycondensation |
| US6359106B1 (en) * | 2000-03-09 | 2002-03-19 | Hitachi, Ltd. | Production process and production apparatus for polybutylene terephthalate |
| CN1612907A (en) * | 2001-11-12 | 2005-05-04 | 因文塔-费希尔股份有限两合公司 | Method for the continuous production of high-molecular polyester and device for carrying out the method |
| CN101831063A (en) * | 2010-04-29 | 2010-09-15 | 扬州惠通化工技术有限公司 | Combined type polyester reaction tower |
| CN103570926A (en) * | 2012-07-20 | 2014-02-12 | 株式会社日立制作所 | Polyester production process and apparatus |
| CN104755529A (en) * | 2012-11-09 | 2015-07-01 | 株式会社日立制作所 | Device and method for producing polyester |
| CN205517631U (en) * | 2016-02-23 | 2016-08-31 | 扬州惠通化工技术有限公司 | Vertical polycondensation reactor in advance that esterifies |
-
2016
- 2016-02-23 CN CN201610097835.2A patent/CN105664796B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1229419A (en) * | 1996-09-04 | 1999-09-22 | 株式会社日立制作所 | Method and apparatus for continuous polycondensation |
| US6359106B1 (en) * | 2000-03-09 | 2002-03-19 | Hitachi, Ltd. | Production process and production apparatus for polybutylene terephthalate |
| CN1612907A (en) * | 2001-11-12 | 2005-05-04 | 因文塔-费希尔股份有限两合公司 | Method for the continuous production of high-molecular polyester and device for carrying out the method |
| CN101831063A (en) * | 2010-04-29 | 2010-09-15 | 扬州惠通化工技术有限公司 | Combined type polyester reaction tower |
| CN103570926A (en) * | 2012-07-20 | 2014-02-12 | 株式会社日立制作所 | Polyester production process and apparatus |
| CN104755529A (en) * | 2012-11-09 | 2015-07-01 | 株式会社日立制作所 | Device and method for producing polyester |
| CN205517631U (en) * | 2016-02-23 | 2016-08-31 | 扬州惠通化工技术有限公司 | Vertical polycondensation reactor in advance that esterifies |
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Address after: No. 301, Wangjiang Road, economic and Technological Development Zone, Yangzhou City, Jiangsu Province Patentee after: Yangzhou Huitong Technology Co.,Ltd. Address before: No. 301, Wangjiang Road, economic and Technological Development Zone, Yangzhou City, Jiangsu Province Patentee before: YANGZHOU HUITONG CHEMICAL TECHNOLOGY Co.,Ltd. |