JPS57130949A - Preparation of methacrolein and methacrylic acid - Google Patents
Preparation of methacrolein and methacrylic acidInfo
- Publication number
- JPS57130949A JPS57130949A JP56014944A JP1494481A JPS57130949A JP S57130949 A JPS57130949 A JP S57130949A JP 56014944 A JP56014944 A JP 56014944A JP 1494481 A JP1494481 A JP 1494481A JP S57130949 A JPS57130949 A JP S57130949A
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- vapor phase
- molecular oxygen
- high temperature
- catalytically
- 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
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
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To obtain the titled compounds in high yield at a long catalytic life, by reacting a tertiary alcohol catalytically with molecular oxygen in the vapor phase at a high temperature in the presence of a catalyst containing an Mo- Bi-Fe-Co system and further Cs and V or Pd in combination.
CONSTITUTION: Tertiary butyl alcohol is catalytically reacted with molecular oxygen in the vapor phase at a high temperature in the presence of a catalyst expressed by the general composition formula (X is V and/or Pd; (aWg) represent the number of atoms, (b) is 2W12; (c) is 0.5W7; (d) is 0.1W5; (e) is 0.0005W 0.5; (f) is 0.01W2 when (a) is fixed at 12; (g) is a numerical value determined by the valences of the respective elements, and usually 78W142), preferably at 300W450°C for a contact time of 0.5W15sec to give the aimed compounds. The catalyst is easily prepared by a well-known preparing method of an oxidation catalyst, and preferably calcined at a temperature of 650W750°C, which is higher than that in the conventional method, in the final stage for 2W10hr.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56014944A JPS57130949A (en) | 1981-02-05 | 1981-02-05 | Preparation of methacrolein and methacrylic acid |
| DE8282300541T DE3260477D1 (en) | 1981-02-05 | 1982-02-03 | Process for producing methacrolein and methacrylic acid |
| EP19820300541 EP0058046B1 (en) | 1981-02-05 | 1982-02-03 | Process for producing methacrolein and methacrylic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56014944A JPS57130949A (en) | 1981-02-05 | 1981-02-05 | Preparation of methacrolein and methacrylic acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57130949A true JPS57130949A (en) | 1982-08-13 |
Family
ID=11875066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56014944A Pending JPS57130949A (en) | 1981-02-05 | 1981-02-05 | Preparation of methacrolein and methacrylic acid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57130949A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5349092A (en) * | 1992-02-27 | 1994-09-20 | Mitsubishi Rayon Co., Ltd. | Process for producing catalysts for synthesis of unsaturated aldehydes and unsaturated carboxylic acids |
| US5532199A (en) * | 1992-06-19 | 1996-07-02 | Mitsubishi Rayon Co., Ltd. | Carrier-supported catalyst for the synthesis of unsaturated aldehydes and unsaturated carboxylic acids and process for preparing the same |
-
1981
- 1981-02-05 JP JP56014944A patent/JPS57130949A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5349092A (en) * | 1992-02-27 | 1994-09-20 | Mitsubishi Rayon Co., Ltd. | Process for producing catalysts for synthesis of unsaturated aldehydes and unsaturated carboxylic acids |
| US5532199A (en) * | 1992-06-19 | 1996-07-02 | Mitsubishi Rayon Co., Ltd. | Carrier-supported catalyst for the synthesis of unsaturated aldehydes and unsaturated carboxylic acids and process for preparing the same |
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