JPS55111442A - Preparation of terephthalic acid - Google Patents

Preparation of terephthalic acid

Info

Publication number
JPS55111442A
JPS55111442A JP1907079A JP1907079A JPS55111442A JP S55111442 A JPS55111442 A JP S55111442A JP 1907079 A JP1907079 A JP 1907079A JP 1907079 A JP1907079 A JP 1907079A JP S55111442 A JPS55111442 A JP S55111442A
Authority
JP
Japan
Prior art keywords
pref
xylene
terephthalic acid
economically
raw material
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
JP1907079A
Other languages
Japanese (ja)
Other versions
JPS6130649B2 (en
Inventor
Koichi Matsubara
Shintaro Tsuruta
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.)
Mitsui Petrochemical Industries Ltd
Original Assignee
Mitsui Petrochemical Industries 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 Mitsui Petrochemical Industries Ltd filed Critical Mitsui Petrochemical Industries Ltd
Priority to JP1907079A priority Critical patent/JPS55111442A/en
Publication of JPS55111442A publication Critical patent/JPS55111442A/en
Publication of JPS6130649B2 publication Critical patent/JPS6130649B2/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 prepare a high quality terephthalic acid suitable as the raw material for the direct polymerization process, economically, in one step, by the liquid phase catalytic oxidation of p-xylene in the presence of a specific catalyst and a specific amount of a 4W8C aliphatic carboxylic acid alkyl ester.
CONSTITUTION: High quality terephthalic acid useful as the raw material of polyethylene terephthalate by direct polymerization process, economically, in one step, under mild conditions, by the liquid phase catalytic oxidation of p-xylene with molecular oxygen, in acetic acid, in the presence of a catalyst containing a cobalt compound, a manganese compound and a bromine compound, under high pressure, pref. at 170W230°C adding 0.005W10mol%, pref. 0.01W1mol%, based on the p-xylene, of a 4W8C aliphatic carboxylic acid alkyl ester, pref. a 5W7C alkyl acetate, esp. butyl acetate, to the reaction system.
COPYRIGHT: (C)1980,JPO&Japio
JP1907079A 1979-02-22 1979-02-22 Preparation of terephthalic acid Granted JPS55111442A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1907079A JPS55111442A (en) 1979-02-22 1979-02-22 Preparation of terephthalic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1907079A JPS55111442A (en) 1979-02-22 1979-02-22 Preparation of terephthalic acid

Publications (2)

Publication Number Publication Date
JPS55111442A true JPS55111442A (en) 1980-08-28
JPS6130649B2 JPS6130649B2 (en) 1986-07-15

Family

ID=11989163

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1907079A Granted JPS55111442A (en) 1979-02-22 1979-02-22 Preparation of terephthalic acid

Country Status (1)

Country Link
JP (1) JPS55111442A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0719754A1 (en) * 1994-12-26 1996-07-03 Mitsui Petrochemical Industries, Ltd. Method for producing aromatic carboxylic acids

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0719754A1 (en) * 1994-12-26 1996-07-03 Mitsui Petrochemical Industries, Ltd. Method for producing aromatic carboxylic acids

Also Published As

Publication number Publication date
JPS6130649B2 (en) 1986-07-15

Similar Documents

Publication Publication Date Title
JPS5555138A (en) Preparation of highly pure terephthalic acid
JPS523030A (en) Process for manufacturing high purity terephthalic acid
GB1344383A (en) Monomethyl and dimethyl terephthalate
JPS54103819A (en) Production of unsaturated carboxylic acid
JPS57188543A (en) Preparation of terephthalic acid
JPS55111442A (en) Preparation of terephthalic acid
EP0877012A3 (en) Process for the production of high-purity dimethyl 2,6-naphthalenedicarboxylate and naphthalenedicarboxylic acid
JPS54119427A (en) Preparation of benzenecarboxylic acid
IE45896L (en) Preparation of aromatic dicarboxylic acids
JPS5382720A (en) Preparation of unsaturated carboxylic acids and their esters
GB1419977A (en) Preparation of dimethylterephthalate
JPS55142543A (en) Method for prevention of decomposition of catalyst
GB1423042A (en) Preparation of monomethyl terephthalate and dimethyl tereph thalate
JPS55145637A (en) Preparation of aromatic carboxylic acid or its methyl ester
JPS5334738A (en) Continuous preparation of terephthalic acid
JPS51136640A (en) Process for continuous preparation of high purity terephthalic acid
JPS5476539A (en) Preparation of terephthalic acid
JPS51133242A (en) Process for preparation of p-toluic acid and/or terephthalic acid mono methyl ester
JPS5735544A (en) Preparation of terephthalic acid
JPS5384932A (en) Preparation of terephthalic acid
JPS55154939A (en) Preparation of benzenecarboxylic acid
GB1462317A (en) Process for the production of 2,6-naphthalene dicarboxylic acid dimethyl ester
JPS56104846A (en) Preparation of benzylidine compound
JPS51127033A (en) Process for preparation of aromatic carboxylic acids
JPS54103817A (en) Continuous production of oxalic ester