GB674412A - An improved catalyst for the oxidation of olefines - Google Patents
An improved catalyst for the oxidation of olefinesInfo
- Publication number
- GB674412A GB674412A GB26626/50A GB2662650A GB674412A GB 674412 A GB674412 A GB 674412A GB 26626/50 A GB26626/50 A GB 26626/50A GB 2662650 A GB2662650 A GB 2662650A GB 674412 A GB674412 A GB 674412A
- Authority
- GB
- United Kingdom
- Prior art keywords
- silver
- support
- spherical
- oxidation
- catalyst
- 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
-
- 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
- B01J23/48—Silver or gold
- B01J23/50—Silver
-
- 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)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Catalysts (AREA)
Abstract
Olefine oxides are prepared by reacting the olefine, e.g ethylene, with oxygen at 150-400 DEG C. in the presence of a catalyst comprising silver or a silver compound deposited on the surface, preferably roughened surface, of a spherical support, e.g. fused alumina, aluminium silicate, magnesia, silicon carbide, zirconia or beryllium porcelain (see Group III).ALSO:A catalyst for the oxidation of olefines comprises silver or a silver compound deposited on the surface of a spherical support. The support is preferably non-porous and its surface is preferably roughened so as to have iregularities of an approximate depth of 0.005 to 0.05 inch. The support may comprise fused alumina, aluminium silicate, magnesia, silicon carbide, zirconia or beryllium-porcelain. The spherical supports may be prepared by shaping the material into cylinders, then tumbling them into a spherical shape, then tumbling with a volatilizable powder, e.g. naphthalene, and finally roasting to drive off the powder and to leave a roughened surface. Impregnation of the support with silver may be effected by precipitating silver oxide thereon, roasting and then reducing with hydrogen.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US674412XA | 1949-11-08 | 1949-11-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB674412A true GB674412A (en) | 1952-06-25 |
Family
ID=22076002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB26626/50A Expired GB674412A (en) | 1949-11-08 | 1950-11-01 | An improved catalyst for the oxidation of olefines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB674412A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE971452C (en) * | 1952-06-28 | 1959-01-29 | Huels Chemische Werke Ag | Process for the production of ethylene oxide |
-
1950
- 1950-11-01 GB GB26626/50A patent/GB674412A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE971452C (en) * | 1952-06-28 | 1959-01-29 | Huels Chemische Werke Ag | Process for the production of ethylene oxide |
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