JPS5334738A - Continuous preparation of terephthalic acid - Google Patents

Continuous preparation of terephthalic acid

Info

Publication number
JPS5334738A
JPS5334738A JP10724376A JP10724376A JPS5334738A JP S5334738 A JPS5334738 A JP S5334738A JP 10724376 A JP10724376 A JP 10724376A JP 10724376 A JP10724376 A JP 10724376A JP S5334738 A JPS5334738 A JP S5334738A
Authority
JP
Japan
Prior art keywords
terephthalic acid
continuous preparation
specific
polyesters
accelerator
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
JP10724376A
Other languages
Japanese (ja)
Other versions
JPS5645897B2 (en
Inventor
Hajime Torigata
Hiroshi Morimoto
Hiroaki Eguchi
Kenji Nakaoka
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 JP10724376A priority Critical patent/JPS5334738A/en
Publication of JPS5334738A publication Critical patent/JPS5334738A/en
Publication of JPS5645897B2 publication Critical patent/JPS5645897B2/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: In a continuous process for producing terephthalic acid, useful as raw material for polyesters, by oxidation of p-xylene with oxygen in liquid phase in the presence of a cobalt catalyst and an accelerator of aldehyde series, higher product purity can be achieved by using raw materials in a specific ratio in a specific reactor under a specific reaction condition.
COPYRIGHT: (C)1978,JPO&Japio
JP10724376A 1976-09-09 1976-09-09 Continuous preparation of terephthalic acid Granted JPS5334738A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10724376A JPS5334738A (en) 1976-09-09 1976-09-09 Continuous preparation of terephthalic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10724376A JPS5334738A (en) 1976-09-09 1976-09-09 Continuous preparation of terephthalic acid

Publications (2)

Publication Number Publication Date
JPS5334738A true JPS5334738A (en) 1978-03-31
JPS5645897B2 JPS5645897B2 (en) 1981-10-29

Family

ID=14454097

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10724376A Granted JPS5334738A (en) 1976-09-09 1976-09-09 Continuous preparation of terephthalic acid

Country Status (1)

Country Link
JP (1) JPS5334738A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54160330A (en) * 1978-06-05 1979-12-19 Kuraray Yuka Kk Preparation of high-purity terephthalic acid of stable quality
WO2001038279A1 (en) * 1999-11-26 2001-05-31 Chemintel (India) Private Limited Process for preparation of benzene dicarboxylic acids

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54160330A (en) * 1978-06-05 1979-12-19 Kuraray Yuka Kk Preparation of high-purity terephthalic acid of stable quality
JPS6236024B2 (en) * 1978-06-05 1987-08-05 Kuraray Co
WO2001038279A1 (en) * 1999-11-26 2001-05-31 Chemintel (India) Private Limited Process for preparation of benzene dicarboxylic acids

Also Published As

Publication number Publication date
JPS5645897B2 (en) 1981-10-29

Similar Documents

Publication Publication Date Title
JPS5555138A (en) Preparation of highly pure terephthalic acid
JPS523030A (en) Process for manufacturing high purity terephthalic acid
JPS5726627A (en) Preparation of p-xylene
JPS5295609A (en) Preparation of methacrylic acid
JPS51145488A (en) Reclaiming method of catalyst for liquid phase oxidation
JPS5334738A (en) Continuous preparation of terephthalic acid
JPS5351295A (en) Preparation of polyester
YU35967B (en) Process for the preparation of a catalyst for the reaction of ethylene,oxygen and oxygen containing gases and carboxylic acids into vinyl esters
JPS52108946A (en) Production of purified terephthalic acid
IE45896L (en) Preparation of aromatic dicarboxylic acids
GB1419977A (en) Preparation of dimethylterephthalate
JPS5334739A (en) Preparation of terephthalic acid
JPS5291835A (en) Prepation of terephtalic acid for direct polymerization
JPS5351294A (en) Preparation of polyester
JPS55153741A (en) Improved preparation of carboxylic acid ester
JPS51136640A (en) Process for continuous preparation of high purity terephthalic acid
JPS53125495A (en) Preparation of polyester
JPS51127195A (en) Process for manvfactvring polyesters
GB2019395A (en) Production of Terephthalic Acid from p-Xylene
JPS5293734A (en) Continuous preparation of hig-purity terephthalic acid
JPS51136639A (en) Process for continuous preparation of terephthalic acid
JPS55111442A (en) Preparation of terephthalic acid
JPS53112830A (en) Production of terephthalic acid
JPS52133942A (en) Treatment of reaction mother liquor
JPS5312833A (en) Preparation of dimethylterephthalate