GB500382A - Improvements in the manufacture and production of olefine oxides - Google Patents
Improvements in the manufacture and production of olefine oxidesInfo
- Publication number
- GB500382A GB500382A GB2859837A GB2859837A GB500382A GB 500382 A GB500382 A GB 500382A GB 2859837 A GB2859837 A GB 2859837A GB 2859837 A GB2859837 A GB 2859837A GB 500382 A GB500382 A GB 500382A
- Authority
- GB
- United Kingdom
- Prior art keywords
- treated
- catalyst
- ethylene
- nitric acid
- air
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
500,382. Olefine oxides; catalytic agents. JOHNSON, G. W. (I. G. Farbenindustrie Akt.-Ges.) Oct. 20, 1937, Nos. 28598/37 and 902/38. [Class 2 (iii)] [Also in Group III] Olefine oxides are produced by the oxidation of olefines with oxygen in the presence of catalysts obtained by reducing solutions or suspensions of silver compounds with or without the presence of compounds of other metals such as gold or copper. Suitable reducing agents are hydrazine, formaldehyde, glucose, hydroxylamine and phenylhydrazine. The catalysts may be etched with dilute nitric acid. In examples : (1) a catalyst is prepared by precipitating a silver nitrate solution with potassium carbonate and reducing with potassium hydroxide and formaldehyde; 200 parts of air and 5 of ethylene are passed over this catalyst at 240-260‹ C., or 62À5 parts of ethylene, 80 of steam and 10-20 of air may be used at 210-240‹ C.; (3) silver nitrate solution is treated with hydrazine hydrate and the washed precipitate is treated for some minutes with nitric acid of 2 per cent; (4) a solution of silver nitrate containing a little copper nitrate and gold chloride is treated with hydrazinc hydrate while cooling with ice; the mixture is boiled till nitrogen is no longer evolved and the washed precipitate treated with nitric acid of 4 per cent; this catalyst is used with a mixture of ethylene, air and steam ; (7) a solution of silver nitrate containing copper nitrate and gold chloride is precipitated with potassium hydroxide and reduced with glucose, the washed precipitate being treated with nitric acid of 4 per cent; this catalyst is used with a mixture of ethylene, air and steam in the ratio 1 : 10 : 30 at 250-350‹ C. The process may be effected in a porcelain or silver tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2859837A GB500382A (en) | 1937-10-20 | 1937-10-20 | Improvements in the manufacture and production of olefine oxides |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2859837A GB500382A (en) | 1937-10-20 | 1937-10-20 | Improvements in the manufacture and production of olefine oxides |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB500382A true GB500382A (en) | 1939-02-08 |
Family
ID=10278136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2859837A Expired GB500382A (en) | 1937-10-20 | 1937-10-20 | Improvements in the manufacture and production of olefine oxides |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB500382A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2424086A (en) * | 1943-08-11 | 1947-07-15 | Shell Dev | Production of olefin oxides |
| US2424084A (en) * | 1943-08-11 | 1947-07-15 | Shell Dev | Process for the manufacture of olefin oxides |
| US2585479A (en) * | 1949-01-13 | 1952-02-12 | Ici Ltd | Production of olefin oxides |
| SG125946A1 (en) * | 2003-03-25 | 2006-10-30 | Sumitomo Chemical Co | Process for producing oxide |
| CN108607555A (en) * | 2016-12-09 | 2018-10-02 | 中国石油化工股份有限公司 | A kind of silver catalyst and its preparation method and application |
-
1937
- 1937-10-20 GB GB2859837A patent/GB500382A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2424086A (en) * | 1943-08-11 | 1947-07-15 | Shell Dev | Production of olefin oxides |
| US2424084A (en) * | 1943-08-11 | 1947-07-15 | Shell Dev | Process for the manufacture of olefin oxides |
| US2585479A (en) * | 1949-01-13 | 1952-02-12 | Ici Ltd | Production of olefin oxides |
| 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 |
| CN108607555A (en) * | 2016-12-09 | 2018-10-02 | 中国石油化工股份有限公司 | A kind of silver catalyst and its preparation method and application |
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