GB517333A - Improvement in catalyst and process for olefine oxidation - Google Patents
Improvement in catalyst and process for olefine oxidationInfo
- Publication number
- GB517333A GB517333A GB21873/38A GB2187338A GB517333A GB 517333 A GB517333 A GB 517333A GB 21873/38 A GB21873/38 A GB 21873/38A GB 2187338 A GB2187338 A GB 2187338A GB 517333 A GB517333 A GB 517333A
- Authority
- GB
- United Kingdom
- Prior art keywords
- silver
- per cent
- barium
- hydroxides
- catalysts
- 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
- C07D—HETEROCYCLIC COMPOUNDS
- C07D301/00—Preparation of oxiranes
- C07D301/02—Synthesis of the oxirane ring
- C07D301/03—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds
- C07D301/04—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen
- C07D301/08—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen in the gaseous phase
- C07D301/10—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen in the gaseous phase with catalysts containing silver or gold
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/66—Silver or gold
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
517,333. Preparation of catalysts. CARBIDE & CARBON CHEMICALS CORPORATION. July 23, 1938, Nos. 21873 and 21874. Convention dates, Aug. 7, 1937, and July 12, 1938. [Class 1 (i)] [Also in Group IV] In the direct oxidation of olefines to olefine oxides at temperatures between 150‹C. and 400‹C., the catalyst consists essentially of silver together with one or more of the peroxides, hydroxides or oxides of barium, strontium or lithium. The catalyst may be in the form of pellets, small rods, or supported on granular material, e.g., silica filter stone, sandstone or an alumina refractory material, and the promoting material is used in amounts of 2-40 per cent. by weight of the silver present, preferably about 10 per cent. In the examples given, the catalysts are prepared by stirring a mixture of a suitable support, silver oxide and water, with or without a suitable amount of promoter, and heating until all the water is evaporated. The examples describe the oxidation of ethylene to ethylene oxide, and compare the results obtained with (1) silver alone (2) silver and 10 per cent. of barium peroxide (3) silver and 10 per cent. of strontium hydroxide (4) silver and 10 per cent. of lithium hydroxide (5) silver and 10 per cent. of potassium or caesium hydroxides (6) silver and 10 per cent. of calcium hydroxide. Also catalysts containing magnesium or aluminium hydroxides are referred to. Catalysts containing promoters other than barium, strontium or lithium are stated to give low yields or become rapidly poisoned. If desired, hydrogen peroxide may be added with the metal hydroxides, and also barium carbonate or'chloride in the presence of sufficient ethylene oxide and moisture become active as promoters.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US517333XA | 1937-08-07 | 1937-08-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB517333A true GB517333A (en) | 1940-01-26 |
Family
ID=21973060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB21873/38A Expired GB517333A (en) | 1937-08-07 | 1938-07-23 | Improvement in catalyst and process for olefine oxidation |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB517333A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2752362A (en) * | 1949-11-08 | 1956-06-26 | Chempatents Inc | Process for the oxidation of ethylene |
| SG125946A1 (en) * | 2003-03-25 | 2006-10-30 | Sumitomo Chemical Co | Process for producing oxide |
| CN116237057A (en) * | 2023-02-08 | 2023-06-09 | 山西大河生态环境科学研究院有限公司 | Catalyst and preparation method and application thereof |
-
1938
- 1938-07-23 GB GB21873/38A patent/GB517333A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2752362A (en) * | 1949-11-08 | 1956-06-26 | Chempatents Inc | Process for the oxidation of ethylene |
| SG125946A1 (en) * | 2003-03-25 | 2006-10-30 | Sumitomo Chemical Co | Process for producing oxide |
| US7319156B2 (en) | 2003-03-25 | 2008-01-15 | Sumitomo Chemical Company, Limited | Process for producing olefin oxide |
| US7585987B2 (en) | 2003-03-25 | 2009-09-08 | Sumitomo Chemical Company, Limited | Process for producing olefin oxide |
| CN116237057A (en) * | 2023-02-08 | 2023-06-09 | 山西大河生态环境科学研究院有限公司 | Catalyst and preparation method and application thereof |
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