JPS5323921A - Preparation of methacrylic acid - Google Patents

Preparation of methacrylic acid

Info

Publication number
JPS5323921A
JPS5323921A JP9906976A JP9906976A JPS5323921A JP S5323921 A JPS5323921 A JP S5323921A JP 9906976 A JP9906976 A JP 9906976A JP 9906976 A JP9906976 A JP 9906976A JP S5323921 A JPS5323921 A JP S5323921A
Authority
JP
Japan
Prior art keywords
methacrylic acid
preparation
methacrolein
gas
long life
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
JP9906976A
Other languages
Japanese (ja)
Inventor
Tatsuo Shiraishi
Hiroshi Ichihashi
Tamio Shirafuji
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.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical 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 Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Priority to JP9906976A priority Critical patent/JPS5323921A/en
Publication of JPS5323921A publication Critical patent/JPS5323921A/en
Pending legal-status Critical Current

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

Abstract

PURPOSE: To prepare methacrylic acid in high yield by the gas-phase oxidation of methacrolein with O2 etc. at a high temperature in the presence of specific catalysts comprising Mo, P, V, Tl, O, Co and/or Al and having a long life.
COPYRIGHT: (C)1978,JPO&Japio
JP9906976A 1976-08-18 1976-08-18 Preparation of methacrylic acid Pending JPS5323921A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9906976A JPS5323921A (en) 1976-08-18 1976-08-18 Preparation of methacrylic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9906976A JPS5323921A (en) 1976-08-18 1976-08-18 Preparation of methacrylic acid

Publications (1)

Publication Number Publication Date
JPS5323921A true JPS5323921A (en) 1978-03-06

Family

ID=14237544

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9906976A Pending JPS5323921A (en) 1976-08-18 1976-08-18 Preparation of methacrylic acid

Country Status (1)

Country Link
JP (1) JPS5323921A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58182440A (en) * 1982-04-15 1983-10-25 Entatsuku Kk Coil for small-sized motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58182440A (en) * 1982-04-15 1983-10-25 Entatsuku Kk Coil for small-sized motor

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