JPS5545726A - Esterification - Google Patents
EsterificationInfo
- Publication number
- JPS5545726A JPS5545726A JP11866078A JP11866078A JPS5545726A JP S5545726 A JPS5545726 A JP S5545726A JP 11866078 A JP11866078 A JP 11866078A JP 11866078 A JP11866078 A JP 11866078A JP S5545726 A JPS5545726 A JP S5545726A
- Authority
- JP
- Japan
- Prior art keywords
- esterification
- bhet
- slurry
- quality
- reaction
- 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.)
- Pending
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
PURPOSE: To manufacture high-quality polyethylene terephthalate free from any variation of the quality among each batch, by carrying out the esterification in the presence of bis-β-hydroxyethyl terephthalate (BHET) using a specific vertical type mixing reactor.
CONSTITUTION: For the title esterification, a vertical type mixing reactor with an inner diameter ≥1m (pref. 1.5W3m) is used. With this reactor, a slurry consisting of 1mol of ferephthalic acid (TA) and 1.05W1.6mol of ethylene glycol (EG) are subjected to esterification to start up the reaction and the resulting BHET (or its oligomer) is supplied for the next reaction where a TA-EG slurry of the same composition as said slurry is fed in the presence of the BHET produced above to perform esterification. Thus, each subsequent batch can be subjected to efficient reaction, leading to a high-quality polyester.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11866078A JPS5545726A (en) | 1978-09-28 | 1978-09-28 | Esterification |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11866078A JPS5545726A (en) | 1978-09-28 | 1978-09-28 | Esterification |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5545726A true JPS5545726A (en) | 1980-03-31 |
Family
ID=14742059
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11866078A Pending JPS5545726A (en) | 1978-09-28 | 1978-09-28 | Esterification |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5545726A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4892495A (en) * | 1972-03-13 | 1973-11-30 | ||
JPS4986496A (en) * | 1972-12-23 | 1974-08-19 |
-
1978
- 1978-09-28 JP JP11866078A patent/JPS5545726A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4892495A (en) * | 1972-03-13 | 1973-11-30 | ||
JPS4986496A (en) * | 1972-12-23 | 1974-08-19 |
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