GB1234080A - - Google Patents
Info
- Publication number
- GB1234080A GB1234080A GB1234080DA GB1234080A GB 1234080 A GB1234080 A GB 1234080A GB 1234080D A GB1234080D A GB 1234080DA GB 1234080 A GB1234080 A GB 1234080A
- Authority
- GB
- United Kingdom
- Prior art keywords
- metals
- alumina
- member selected
- boria
- chlorides
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/04—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides onto unsaturated carbon-to-carbon bonds
- C07C67/05—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides onto unsaturated carbon-to-carbon bonds with oxidation
- C07C67/055—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides onto unsaturated carbon-to-carbon bonds with oxidation in the presence of platinum group metals or their compounds
Abstract
1,234,080. Oxidation catalysts. ASAHI KASEI KOGYO K.K. 7 June, 1968 [12 June, 1967], No. 27279/68. Heading B1E. [Also in Division C2] A catalyst composition comprises a carrier upon which are supported (A) at least one member selected from the metals ruthenium, rhodium, palladium, iridium and platinum, (B) at least one member selected from the fluorides, chlorides and bromides of the metals lithium, potassium, rubidium and caesium and, optionally but preferably, (C) at least one member selected from the metals copper, silver, zinc, cadmium, tin, lead, chromium, molybdenum, tungsten, iron, cobalt and nickel and the oxides and chlorides thereof. The carrier may be active carbon, silicon carbide, silica, silica-alumina, alumina, alumina-boria, boria or titania. The atomic ratio (A):(B), expressed in terms of the metals, preferably is 1:0.1 to 100; if and when (C) is present, the atomic ratio (A):(C), expressed in terms of the metals, preferably is 1:0.01 to 100. Numerous catalysts compositions, together with methods for the preparation thereof, are disclosed in the Specification in which reference also is made to various prior-art catalyst compositions. The catalyst composition may be used in the preparation of vinyl acetate by a process which comprises subjecting a gas mixture containing ethylene, acetic acid and a molecular oxygencontaining gas to a catalytic gas phase reaction at a temperature of from 50‹C to 300‹C.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3711267 | 1967-06-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1234080A true GB1234080A (en) | 1971-06-03 |
Family
ID=12488500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1234080D Expired GB1234080A (en) | 1967-06-12 | 1968-06-07 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE716338A (en) |
| DE (1) | DE1768643C3 (en) |
| FR (1) | FR1583900A (en) |
| GB (1) | GB1234080A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114289024A (en) * | 2022-01-11 | 2022-04-08 | 万华化学集团股份有限公司 | Maleic anhydride hydrogenation catalyst and preparation method thereof |
| CN114957195A (en) * | 2022-06-23 | 2022-08-30 | 中国五环工程有限公司 | Preparation method of fluoroethylene carbonate with high yield |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3421148A1 (en) * | 1984-06-07 | 1985-12-12 | M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach | DEVICE FOR HOLDING THE LOWER LIFT |
| DE10064084B4 (en) * | 2000-12-21 | 2005-09-29 | Wacker-Chemie Gmbh | Process for the preparation of vinyl acetate |
-
1968
- 1968-06-07 GB GB1234080D patent/GB1234080A/en not_active Expired
- 1968-06-10 BE BE716338D patent/BE716338A/xx unknown
- 1968-06-11 DE DE19681768643 patent/DE1768643C3/en not_active Expired
- 1968-06-12 FR FR1583900D patent/FR1583900A/fr not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114289024A (en) * | 2022-01-11 | 2022-04-08 | 万华化学集团股份有限公司 | Maleic anhydride hydrogenation catalyst and preparation method thereof |
| CN114289024B (en) * | 2022-01-11 | 2023-12-19 | 万华化学集团股份有限公司 | Maleic anhydride hydrogenation catalyst and preparation method thereof |
| CN114957195A (en) * | 2022-06-23 | 2022-08-30 | 中国五环工程有限公司 | Preparation method of fluoroethylene carbonate with high yield |
| CN114957195B (en) * | 2022-06-23 | 2023-12-01 | 中国五环工程有限公司 | Preparation method of high-yield fluoroethylene carbonate |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1768643B2 (en) | 1973-12-20 |
| DE1768643C3 (en) | 1974-07-18 |
| BE716338A (en) | 1968-11-04 |
| FR1583900A (en) | 1969-12-05 |
| DE1768643A1 (en) | 1971-10-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |