JPS5479243A - Method of continuous esterification - Google Patents

Method of continuous esterification

Info

Publication number
JPS5479243A
JPS5479243A JP14507977A JP14507977A JPS5479243A JP S5479243 A JPS5479243 A JP S5479243A JP 14507977 A JP14507977 A JP 14507977A JP 14507977 A JP14507977 A JP 14507977A JP S5479243 A JPS5479243 A JP S5479243A
Authority
JP
Japan
Prior art keywords
esterification
terephthalic acid
dicarboxylic acids
type reactor
mainly consisting
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
JP14507977A
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 JP14507977A priority Critical patent/JPS5479243A/en
Publication of JPS5479243A publication Critical patent/JPS5479243A/en
Pending legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE: The continuous esterification reaction between dicarboxylic acids mainly containing terephthalic acid and glycols is effected through a specific two-stage process, thereby producing esterification products with less DEG content in high productivity even in large scale production.
CONSTITUTION: The continuous esterification reaction between dicarboxylic acids mainly consisting of terephthalic acid and gylcols mainly consisting of ethylene glycol is carried out to produce the glycol esters of carboxylic acids and/or their oligomers, wherein first the slurry is esterified in completely mixing type reactor 4 to an extent of 80W92% esterification degree, then the esterification is continued using horizontal multistage cascade type reacror 9. The horizontal multistage cascade type reactor is provided with stirring shafts in the longitudinal direction to lift the reaction mixture to renew surfaces always, thereby expanding the evaporation area.
COPYRIGHT: (C)1979,JPO&Japio
JP14507977A 1977-12-05 1977-12-05 Method of continuous esterification Pending JPS5479243A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14507977A JPS5479243A (en) 1977-12-05 1977-12-05 Method of continuous esterification

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14507977A JPS5479243A (en) 1977-12-05 1977-12-05 Method of continuous esterification

Publications (1)

Publication Number Publication Date
JPS5479243A true JPS5479243A (en) 1979-06-25

Family

ID=15376887

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14507977A Pending JPS5479243A (en) 1977-12-05 1977-12-05 Method of continuous esterification

Country Status (1)

Country Link
JP (1) JPS5479243A (en)

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