Process for preparing a silver catalyst
US4342667A · kind A · utility
21Cited by
8References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 26, 1979 |
| Grant date | Aug 3, 1982 |
| Priority date | — |
| Expiry date | Mar 26, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A supported silver catalyst for oxidation of ethylene to ethylene oxide is prepared by impregnation of the support, activation, and solvent washing, with each step being carried out at a relatively low temperature. Silver so deposited has an average particle diameter of about 0.5-0.7 microns and is capable of being promoted by post-deposition of alkali metals such as cesium, rubidium, and potassium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.