JPS5392726A - Preparation of terephthalic acid - Google Patents

Preparation of terephthalic acid

Info

Publication number
JPS5392726A
JPS5392726A JP743877A JP743877A JPS5392726A JP S5392726 A JPS5392726 A JP S5392726A JP 743877 A JP743877 A JP 743877A JP 743877 A JP743877 A JP 743877A JP S5392726 A JPS5392726 A JP S5392726A
Authority
JP
Japan
Prior art keywords
preparation
terephthalic acid
tolualdehyde
soln
yield
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
JP743877A
Other languages
Japanese (ja)
Other versions
JPS609018B2 (en
Inventor
Makoto Komatsu
Ryoichi Oda
Toru Tanaka
Tazuo Oota
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.)
Mitsubishi Gas Chemical Co Inc
Original Assignee
Mitsubishi Gas Chemical Co 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 Mitsubishi Gas Chemical Co Inc filed Critical Mitsubishi Gas Chemical Co Inc
Priority to JP52007438A priority Critical patent/JPS609018B2/en
Publication of JPS5392726A publication Critical patent/JPS5392726A/en
Publication of JPS609018B2 publication Critical patent/JPS609018B2/en
Expired 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 telephthalic acid in ≥ 90 yield by continuous oxidation of p-tolualdehyde in an aq. soln. at 180-240°C in the presence of specific amt. of bromine ion.
COPYRIGHT: (C)1978,JPO&Japio
JP52007438A 1977-01-26 1977-01-26 Production method of terephthalic acid Expired JPS609018B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52007438A JPS609018B2 (en) 1977-01-26 1977-01-26 Production method of terephthalic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52007438A JPS609018B2 (en) 1977-01-26 1977-01-26 Production method of terephthalic acid

Publications (2)

Publication Number Publication Date
JPS5392726A true JPS5392726A (en) 1978-08-15
JPS609018B2 JPS609018B2 (en) 1985-03-07

Family

ID=11665856

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52007438A Expired JPS609018B2 (en) 1977-01-26 1977-01-26 Production method of terephthalic acid

Country Status (1)

Country Link
JP (1) JPS609018B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2411171A1 (en) * 1977-12-07 1979-07-06 Mitsubishi Gas Chemical Co PROCESS FOR PREPARING HIGH PURE TEREPHTHALIC ACID
JPS5626839A (en) * 1979-08-13 1981-03-16 Mitsubishi Gas Chem Co Inc Preparation of aromatic polycarboxylic acid

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH064416Y2 (en) * 1990-10-04 1994-02-02 パイオニア株式会社 Optical recording information reader

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3678106A (en) * 1970-04-02 1972-07-18 Fmc Corp OXIDATION OF p-XYLENE AND p-TOLUIC ACID TO TEREPHTHALIC ACID IN AQUEOUS MEDIUM

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3678106A (en) * 1970-04-02 1972-07-18 Fmc Corp OXIDATION OF p-XYLENE AND p-TOLUIC ACID TO TEREPHTHALIC ACID IN AQUEOUS MEDIUM

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2411171A1 (en) * 1977-12-07 1979-07-06 Mitsubishi Gas Chemical Co PROCESS FOR PREPARING HIGH PURE TEREPHTHALIC ACID
JPS5626839A (en) * 1979-08-13 1981-03-16 Mitsubishi Gas Chem Co Inc Preparation of aromatic polycarboxylic acid
JPS582222B2 (en) * 1979-08-13 1983-01-14 三菱瓦斯化学株式会社 Production method of aromatic polycarboxylic acid

Also Published As

Publication number Publication date
JPS609018B2 (en) 1985-03-07

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