JPS5511516A - Preparation of terephthalic acid - Google Patents

Preparation of terephthalic acid

Info

Publication number
JPS5511516A
JPS5511516A JP8297178A JP8297178A JPS5511516A JP S5511516 A JPS5511516 A JP S5511516A JP 8297178 A JP8297178 A JP 8297178A JP 8297178 A JP8297178 A JP 8297178A JP S5511516 A JPS5511516 A JP S5511516A
Authority
JP
Japan
Prior art keywords
xylene
terephthalic acid
preparation
heat
oxidation product
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
JP8297178A
Other languages
Japanese (ja)
Inventor
Hiroshi Morimoto
Hajime Torigata
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 JP8297178A priority Critical patent/JPS5511516A/en
Publication of JPS5511516A publication Critical patent/JPS5511516A/en
Pending legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE: To obtain high-grade terephthalic acid industrially advantageously, by heat-treating an oxidation product slurry, prepared through oxidizing p-xylene with O2 in acetic acid, in the presence of the row p-xylene.
CONSTITUTION: p-Xylene is oxidized with an oxygen-containing gas in the presence of a Co compound catalyst and paraformaldehyde or acetaldehyde as a reaction promotor in acetic acid at 110W140°C to give an oxidation product slurry, which is heat-treated at a temperature higher than the reaction temperature in the presence of p-xylene in an amount of 0.05W0.4 that of the solvent at 140W180°C to isolate terephtalic acid.
COPYRIGHT: (C)1980,JPO&Japio
JP8297178A 1978-07-10 1978-07-10 Preparation of terephthalic acid Pending JPS5511516A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8297178A JPS5511516A (en) 1978-07-10 1978-07-10 Preparation of terephthalic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8297178A JPS5511516A (en) 1978-07-10 1978-07-10 Preparation of terephthalic acid

Publications (1)

Publication Number Publication Date
JPS5511516A true JPS5511516A (en) 1980-01-26

Family

ID=13789095

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8297178A Pending JPS5511516A (en) 1978-07-10 1978-07-10 Preparation of terephthalic acid

Country Status (1)

Country Link
JP (1) JPS5511516A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58192551A (en) * 1982-05-06 1983-11-10 テルモ株式会社 Package container for preserving medical container

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58192551A (en) * 1982-05-06 1983-11-10 テルモ株式会社 Package container for preserving medical container
JPH0137954B2 (en) * 1982-05-06 1989-08-10 Terumo Corp

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