JPS5535040A - Esterification process - Google Patents

Esterification process

Info

Publication number
JPS5535040A
JPS5535040A JP10848678A JP10848678A JPS5535040A JP S5535040 A JPS5535040 A JP S5535040A JP 10848678 A JP10848678 A JP 10848678A JP 10848678 A JP10848678 A JP 10848678A JP S5535040 A JPS5535040 A JP S5535040A
Authority
JP
Japan
Prior art keywords
tpa
reaction
slurry
reactor
bis
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.)
Granted
Application number
JP10848678A
Other languages
Japanese (ja)
Other versions
JPS6111215B2 (en
Inventor
Hiroyuki Ikeuchi
Heiroku Suganuma
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.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
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 Toray Industries Inc filed Critical Toray Industries Inc
Priority to JP10848678A priority Critical patent/JPS5535040A/en
Publication of JPS5535040A publication Critical patent/JPS5535040A/en
Publication of JPS6111215B2 publication Critical patent/JPS6111215B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: In the direct polymerization process using TPA as a starting material, the necessary minimum amount of bis-β-hydroxyethyl terephthalate is produced at first, then the excessive EG is removed from the ayatem, and finally the esterification is carried out by supplying the slurry continuously to the system.
CONSTITUTION: Ethylene glycol (EG) is charged into a reactor and heated at 180W250°C. Simultaneously or subsequently to the above, the reactor is fed with a slurry of terephtalic acid (TPA) and EG continuosly, and bis-β-hydroxyethyl terephtalate is produced. Excessive EG is discharged from the reaction mixture to attain the molar ratio of EG/TPA in the reaction mixture at the completion of the reaction from 2W10 to 0.9W1.5. The reaction is continued by supplying a slurry composed of TPA and EG at the molar ratio of EG/TPA of 0.9W1.5, continuously to the reaction system.
EFFECT: The production of diethylene glycol of BHT can be reduced.
COPYRIGHT: (C)1980,JPO&Japio
JP10848678A 1978-09-06 1978-09-06 Esterification process Granted JPS5535040A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10848678A JPS5535040A (en) 1978-09-06 1978-09-06 Esterification process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10848678A JPS5535040A (en) 1978-09-06 1978-09-06 Esterification process

Publications (2)

Publication Number Publication Date
JPS5535040A true JPS5535040A (en) 1980-03-11
JPS6111215B2 JPS6111215B2 (en) 1986-04-01

Family

ID=14485972

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10848678A Granted JPS5535040A (en) 1978-09-06 1978-09-06 Esterification process

Country Status (1)

Country Link
JP (1) JPS5535040A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007077041A (en) * 2005-09-12 2007-03-29 Mitsubishi Chemicals Corp Method for producing terephthalic acid diester

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5019314A (en) * 1973-06-21 1975-02-28

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5019314A (en) * 1973-06-21 1975-02-28

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007077041A (en) * 2005-09-12 2007-03-29 Mitsubishi Chemicals Corp Method for producing terephthalic acid diester

Also Published As

Publication number Publication date
JPS6111215B2 (en) 1986-04-01

Similar Documents

Publication Publication Date Title
JPS5535040A (en) Esterification process
JPS5239643A (en) A process for preparing terephtalic acid
ES8400727A1 (en) Process for making allylic esters of tetrabromophthalic acid.
JPS5351295A (en) Preparation of polyester
JPS51124191A (en) A process for preparing a polyester
JPS5351294A (en) Preparation of polyester
JPS5655193A (en) Production of vinegar
ES476885A1 (en) Process for the preparation of ethylesters.
JPS5614524A (en) Production of polyester low polymer
JPS5640645A (en) Preparation of bis-beta-hydroxyethyl terephthalate and low- molecular condensate of the same and apparatus for preparing the same
JPS5531019A (en) Batch-wise esterification
JPS5283424A (en) Esterification process
GB1405303A (en) Polyester preparation
JPS54157536A (en) Esterification process
JPS5257135A (en) Esterification process
JPS54157535A (en) Batchwise esterification process
JPS57172920A (en) Continuous esterification of terephthalic acid
JPS5229893A (en) Process for producing polyester elastomers
JPS5249292A (en) Process for preparing polyesters
JPS52111531A (en) Continuous process for esterifying terephthalic acid
JPS51127080A (en) A process for preparing quisqualic acid.
JPS5665019A (en) Production of polyester
JPS5476536A (en) Esterification
JPS5479243A (en) Method of continuous esterification
JPS54150495A (en) Production of polyester