JPS5545726A - Esterification - Google Patents

Esterification

Info

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
Application number
JP11866078A
Other languages
Japanese (ja)
Inventor
Masataka Inoue
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Teijin Ltd
Original Assignee
Teijin Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Teijin Ltd filed Critical Teijin Ltd
Priority to JP11866078A priority Critical patent/JPS5545726A/en
Publication of JPS5545726A publication Critical patent/JPS5545726A/en
Pending legal-status Critical Current

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
JP11866078A 1978-09-28 1978-09-28 Esterification Pending JPS5545726A (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4892495A (en) * 1972-03-13 1973-11-30
JPS4986496A (en) * 1972-12-23 1974-08-19

Patent Citations (2)

* Cited by examiner, † Cited by third party
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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