JPS5365841A - Preparation of terephthalic acid - Google Patents

Preparation of terephthalic acid

Info

Publication number
JPS5365841A
JPS5365841A JP14204676A JP14204676A JPS5365841A JP S5365841 A JPS5365841 A JP S5365841A JP 14204676 A JP14204676 A JP 14204676A JP 14204676 A JP14204676 A JP 14204676A JP S5365841 A JPS5365841 A JP S5365841A
Authority
JP
Japan
Prior art keywords
terephthalic acid
preparation
solvent
xylene
catalysts
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
JP14204676A
Other languages
Japanese (ja)
Inventor
Maomi Seko
Tetsuya Miyake
Hiroshi Takeuchi
Masatoshi Tauchi
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.)
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Chemical Industry 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 Asahi Chemical Industry Co Ltd filed Critical Asahi Chemical Industry Co Ltd
Priority to JP14204676A priority Critical patent/JPS5365841A/en
Publication of JPS5365841A publication Critical patent/JPS5365841A/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: To prepare highly pure terephthalic acid for direct polymerization with reducing impurities and the loss of a solvent by oxidation of p-xylene with molecular oxygen in acetic acid as a solvent in the presence of catalysts (of low concn.) and specific content of water.
COPYRIGHT: (C)1978,JPO&Japio
JP14204676A 1976-11-26 1976-11-26 Preparation of terephthalic acid Pending JPS5365841A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14204676A JPS5365841A (en) 1976-11-26 1976-11-26 Preparation of terephthalic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14204676A JPS5365841A (en) 1976-11-26 1976-11-26 Preparation of terephthalic acid

Publications (1)

Publication Number Publication Date
JPS5365841A true JPS5365841A (en) 1978-06-12

Family

ID=15306126

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14204676A Pending JPS5365841A (en) 1976-11-26 1976-11-26 Preparation of terephthalic acid

Country Status (1)

Country Link
JP (1) JPS5365841A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5852243A (en) * 1981-09-24 1983-03-28 Mitsubishi Gas Chem Co Inc Preparation of terephthalic acid

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5852243A (en) * 1981-09-24 1983-03-28 Mitsubishi Gas Chem Co Inc Preparation of terephthalic acid
JPS6246533B2 (en) * 1981-09-24 1987-10-02 Mitsubishi Gasu Kagaku Kk

Similar Documents

Publication Publication Date Title
JPS5555138A (en) Preparation of highly pure terephthalic acid
JPS5295609A (en) Preparation of methacrylic acid
JPS535132A (en) Preparation of benzaldehyde
JPS5365841A (en) Preparation of terephthalic acid
JPS5291835A (en) Prepation of terephtalic acid for direct polymerization
JPS5239643A (en) A process for preparing terephtalic acid
JPS52108946A (en) Production of purified terephthalic acid
JPS5359640A (en) Preparation of threphthalic acid of high quality
JPS5382720A (en) Preparation of unsaturated carboxylic acids and their esters
JPS5353634A (en) Preparation of highly pure
JPS5217412A (en) Process for preparation of alkyleneglycolesters
JPS5384931A (en) Preparation of terephthalic acid
JPS52133942A (en) Treatment of reaction mother liquor
JPS5312833A (en) Preparation of dimethylterephthalate
JPS5379836A (en) Preparation of terephthalic acid
JPS5356612A (en) Purification of maleic acid anhydride
JPS52111587A (en) Preparation of 6-aminopenam carboxylic acid-1-oxide or its derivatives
JPS52151115A (en) Preparation of diacetoxybutene
JPS5233614A (en) Process for preparation of acetic acid
JPS5384932A (en) Preparation of terephthalic acid
JPS5398923A (en) Preparation of hydroxyacetic acid
JPS532424A (en) Preparation of p-xylene
JPS5371045A (en) Preparation of benzophenoneazines
JPS52153908A (en) Preparation of allyl acetic acid
JPS5371026A (en) Preparation of purified terephthalic acid