GB832088A - A process for the continuous polycondensation of dimethyl terephthalate with ethylene glycol - Google Patents
A process for the continuous polycondensation of dimethyl terephthalate with ethylene glycolInfo
- Publication number
- GB832088A GB832088A GB280357A GB280357A GB832088A GB 832088 A GB832088 A GB 832088A GB 280357 A GB280357 A GB 280357A GB 280357 A GB280357 A GB 280357A GB 832088 A GB832088 A GB 832088A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ethylene glycol
- heated
- tube
- stage
- vessel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 title abstract 32
- WOZVHXUHUFLZGK-UHFFFAOYSA-N dimethyl terephthalate Chemical compound COC(=O)C1=CC=C(C(=O)OC)C=C1 WOZVHXUHUFLZGK-UHFFFAOYSA-N 0.000 title abstract 8
- 238000000034 method Methods 0.000 title 1
- 238000006068 polycondensation reaction Methods 0.000 title 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract 6
- 229920000139 polyethylene terephthalate Polymers 0.000 abstract 4
- 239000005020 polyethylene terephthalate Substances 0.000 abstract 4
- -1 Polyethylene terephthalate Polymers 0.000 abstract 3
- 239000011261 inert gas Substances 0.000 abstract 3
- 239000003054 catalyst Substances 0.000 abstract 2
- 238000006243 chemical reaction Methods 0.000 abstract 2
- BTVWZWFKMIUSGS-UHFFFAOYSA-N dimethylethyleneglycol Natural products CC(C)(O)CO BTVWZWFKMIUSGS-UHFFFAOYSA-N 0.000 abstract 2
- 238000005886 esterification reaction Methods 0.000 abstract 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 230000000630 rising effect Effects 0.000 abstract 2
- ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical compound [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 abstract 1
- 238000007599 discharging Methods 0.000 abstract 1
- 239000000155 melt Substances 0.000 abstract 1
- 239000011541 reaction mixture Substances 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 239000004246 zinc acetate Substances 0.000 abstract 1
Classifications
-
- 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
- C08G63/785—Preparation processes characterised by the apparatus used
-
- 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
- B01J19/18—Stationary reactors having moving elements inside
-
- 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
- B01J19/24—Stationary reactors without moving elements inside
- B01J19/2415—Tubular reactors
- B01J19/2435—Loop-type reactors
-
- 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
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
- B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
- B01J2219/00094—Jackets
-
- 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
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00121—Controlling the temperature by direct heating or cooling
- B01J2219/0013—Controlling the temperature by direct heating or cooling by condensation of reactants
-
- 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
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00132—Controlling the temperature using electric heating or cooling elements
-
- 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
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00159—Controlling the temperature controlling multiple zones along the direction of flow, e.g. pre-heating and after-cooling
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Polyesters Or Polycarbonates (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
<PICT:0832088/III/1> Polyethylene terephthalate is made continuously by mixing dimethyl terephthalate, ethylene glycol and a catalyst in a vessel 1 heated to 145-180 DEG C. and supplying the mixture via a valve 5 to a U-shaped vessel, the tube 2 of which is heated to 170-190 DEG C. while the other tube 3 is heated to 197-230 DEG C. Methanol vapours containing a small amount of ethylene glycol ascend through the pipe 6 and are condensed, the ethylene glycol being returned to the tube 2. The re-esterification product rising in tube 3 flows through a bridge 7 into a film-evaporator 4 heated to 230-270 DEG C. and glycol fractions liberated in vessels 3 and 4 return to vessel 2 via a pipe 9. During the reaction an inert gas is fed into vessels 2, 3 and 4 via pipes 8.ALSO:Polyethylene terephthalate is made continuously by preheating dimethyl terephthalate and ethylene glycol in a first stage to 145-180 DEG C., feeding the product to a second stage maintained at 170-190 DEG C., feeding this product to a third stage maintained at 197-230 DEG C. wherein the reaction mixture is freed from ethylene glycol, feeding the third stage product to a fourth stage maintained at 230-270 DEG C. in countercurrent to an inert gas and thereafter continuously discharging the resulting polyethylene terephthalate from the fourth stage, the ethylene glycol distilling off from the third and fourth stages being returned to the second stage. Dimethyl terephthalate (1 mol.), ethylene glycol (2 mols.) and a zinc acetate catalyst are mixed in a vessel 1 heated to 145 DEG C., and the mixture supplied via valve 5 to a U-shaped vessel, the tube 2 of which is heated to 190 DEG C. while the other tube 3 is heated to 210 DEG C. Methanol vapours containing a small <PICT:0832088/IV (a)/1> amount of ethylene glycol ascend through the pipe 6 and are condensed, the ethylene glycol being returned to the tube 2. The re-esterification product rising in tube 3 flows through a bridge 7 into a film-evaporator 4 heated to 250 DEG C. and glycol fractions liberated in vessels 3 and 4 return to vessel 2 via pipe 9. The polyethylene terephthalate is withdrawn through a valve 10 and may be heated for a short time in the form of a melt or in solvents to produce a spinnable product. During the reaction an inert gas is fed into vessels 2, 3 and 4 via pipes 8. Specification 578,079 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEV10086A DE1207083B (en) | 1956-01-25 | 1956-01-25 | Process for the continuous production of poly (ethylene glycol terephthalate) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB832088A true GB832088A (en) | 1960-04-06 |
Family
ID=7572946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB280357A Expired GB832088A (en) | 1956-01-25 | 1957-01-25 | A process for the continuous polycondensation of dimethyl terephthalate with ethylene glycol |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE553307A (en) |
| CH (1) | CH353174A (en) |
| DE (1) | DE1207083B (en) |
| FR (1) | FR1163791A (en) |
| GB (1) | GB832088A (en) |
| NL (1) | NL108542C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003042278A1 (en) * | 2001-11-12 | 2003-05-22 | Inventa-Fischer Gmbh & Co. Kg | Method for the continuous production of high-molecular polyester and device for carrying out the method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9346C (en) * | H. ALBERS in Hannover | Innovations in rotating castors with a fixed table top and a roller loaded to and fro | ||
| BE530190A (en) * | ||||
| US2647885A (en) * | 1951-09-28 | 1953-08-04 | Du Pont | Production of polyethylene terephthalate using antimony trioxide as polymerization catalyst |
| US2727882A (en) * | 1952-10-14 | 1955-12-20 | Du Pont | Process and apparatus for the continuous polymerization of bis-2-hydroxyethyl terephthalate |
-
0
- BE BE553307D patent/BE553307A/xx unknown
- NL NL108542D patent/NL108542C/xx active
-
1956
- 1956-01-25 DE DEV10086A patent/DE1207083B/en active Pending
-
1957
- 1957-01-08 FR FR1163791D patent/FR1163791A/en not_active Expired
- 1957-01-10 CH CH353174D patent/CH353174A/en unknown
- 1957-01-25 GB GB280357A patent/GB832088A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003042278A1 (en) * | 2001-11-12 | 2003-05-22 | Inventa-Fischer Gmbh & Co. Kg | Method for the continuous production of high-molecular polyester and device for carrying out the method |
| US7115701B2 (en) | 2001-11-12 | 2006-10-03 | Inventa-Fischer Gmbh & Co. Kg | Method for the continuous production of high-molecular polyester and device for carrying out the method |
| KR100776859B1 (en) | 2001-11-12 | 2007-12-12 | 인벤타-피셔 게엠베하 운트 캄파니 카게 | Method for the continuous production of high-molecular polyester and device for carryung out the method |
Also Published As
| Publication number | Publication date |
|---|---|
| CH353174A (en) | 1961-03-31 |
| BE553307A (en) | |
| FR1163791A (en) | 1958-09-30 |
| DE1207083B (en) | 1965-12-16 |
| NL108542C (en) |
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