JPS52122333A - Preparation of highly pure terephthalic acid by reoxidation process - Google Patents

Preparation of highly pure terephthalic acid by reoxidation process

Info

Publication number
JPS52122333A
JPS52122333A JP3949276A JP3949276A JPS52122333A JP S52122333 A JPS52122333 A JP S52122333A JP 3949276 A JP3949276 A JP 3949276A JP 3949276 A JP3949276 A JP 3949276A JP S52122333 A JPS52122333 A JP S52122333A
Authority
JP
Japan
Prior art keywords
terephthalic acid
highly pure
preparation
reoxidation process
pure terephthalic
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
JP3949276A
Other languages
Japanese (ja)
Inventor
Katsuya Murakami
Takanori Tsugiya
Tetsuo Mizukami
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.)
Kuraray Yuka Co Ltd
Original Assignee
Kuraray Yuka 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 Kuraray Yuka Co Ltd filed Critical Kuraray Yuka Co Ltd
Priority to JP3949276A priority Critical patent/JPS52122333A/en
Publication of JPS52122333A publication Critical patent/JPS52122333A/en
Pending 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 the continuous preparation of terephthalic acid by the air oxidation of p-xylene in the presence of Co etc. in acetic acid, highly pure terephthalic acid is manufactured with one stage oxidation reaction by carrying out the reoxidation process in the presence of small amount of aliphatic ketones, aldehydes, etc.
COPYRIGHT: (C)1977,JPO&Japio
JP3949276A 1976-04-06 1976-04-06 Preparation of highly pure terephthalic acid by reoxidation process Pending JPS52122333A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3949276A JPS52122333A (en) 1976-04-06 1976-04-06 Preparation of highly pure terephthalic acid by reoxidation process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3949276A JPS52122333A (en) 1976-04-06 1976-04-06 Preparation of highly pure terephthalic acid by reoxidation process

Publications (1)

Publication Number Publication Date
JPS52122333A true JPS52122333A (en) 1977-10-14

Family

ID=12554539

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3949276A Pending JPS52122333A (en) 1976-04-06 1976-04-06 Preparation of highly pure terephthalic acid by reoxidation process

Country Status (1)

Country Link
JP (1) JPS52122333A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0265137A2 (en) * 1986-10-20 1988-04-27 Mitsui Petrochemical Industries, Ltd. Purifying terephthalic acid

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0265137A2 (en) * 1986-10-20 1988-04-27 Mitsui Petrochemical Industries, Ltd. Purifying terephthalic acid

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