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JPS5515424A - Continuous esterification of terephthalic acid - Google Patents

Continuous esterification of terephthalic acid

Info

Publication number
JPS5515424A
JPS5515424A JP8724278A JP8724278A JPS5515424A JP S5515424 A JPS5515424 A JP S5515424A JP 8724278 A JP8724278 A JP 8724278A JP 8724278 A JP8724278 A JP 8724278A JP S5515424 A JPS5515424 A JP S5515424A
Authority
JP
Japan
Prior art keywords
terephthalic acid
reactors
reactor
compound
series
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
JP8724278A
Other languages
Japanese (ja)
Other versions
JPS6111214B2 (en
Inventor
Yasuhiro Tokiyama
Minoru Nishinohara
Nobuhiro Matsunaga
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.)
Nippon Ester Co Ltd
Original Assignee
Nippon Ester Co 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 Nippon Ester Co Ltd filed Critical Nippon Ester Co Ltd
Priority to JP8724278A priority Critical patent/JPS5515424A/en
Publication of JPS5515424A publication Critical patent/JPS5515424A/en
Publication of JPS6111214B2 publication Critical patent/JPS6111214B2/ja
Granted legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

PURPOSE: To obtain a terephthalic acid ester containing a few insoluble fine particles, by adding a polymerization catalyst before the first reactor and a heat stabilizer after the second one, using a plurality of reactors in series.
CONSTITUTION: Terephthalic acid is esterified with ethylene glycol in a plurality of reactors in series. A polymerization catalyst, e.g. a Sb compound or together with a Co compound, is added to the reaction system before the first reactor; a heat stabilizer, e.g. a triphosphate, to the system after the second one. Esterification is carried out in the first reactor up to a rate of reaction of 60W95%, and then up to 92W98% in the reactors after the second one.
EFFECT: Improved color and good spinning and drawing conditions due to the nearly completely suppressed formation of insoluble fine particles.
COPYRIGHT: (C)1980,JPO&Japio
JP8724278A 1978-07-18 1978-07-18 Continuous esterification of terephthalic acid Granted JPS5515424A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8724278A JPS5515424A (en) 1978-07-18 1978-07-18 Continuous esterification of terephthalic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8724278A JPS5515424A (en) 1978-07-18 1978-07-18 Continuous esterification of terephthalic acid

Publications (2)

Publication Number Publication Date
JPS5515424A true JPS5515424A (en) 1980-02-02
JPS6111214B2 JPS6111214B2 (en) 1986-04-01

Family

ID=13909335

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8724278A Granted JPS5515424A (en) 1978-07-18 1978-07-18 Continuous esterification of terephthalic acid

Country Status (1)

Country Link
JP (1) JPS5515424A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE32765E (en) * 1981-03-20 1988-10-11 The Goodyear Tire & Rubber Company High clarity colorless polyesters
EP4032875A4 (en) * 2020-11-17 2022-12-21 LG Chem, Ltd. Method for preparing diester compound

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE32765E (en) * 1981-03-20 1988-10-11 The Goodyear Tire & Rubber Company High clarity colorless polyesters
EP4032875A4 (en) * 2020-11-17 2022-12-21 LG Chem, Ltd. Method for preparing diester compound
JP2023507542A (en) * 2020-11-17 2023-02-24 エルジー・ケム・リミテッド Method for producing diester compound

Also Published As

Publication number Publication date
JPS6111214B2 (en) 1986-04-01

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