Process for preparing an ethylene oxide catalyst
US4207210A · kind A · utility
28Cited by
2References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 8, 1976 |
| Grant date | Jun 10, 1980 |
| Priority date | — |
| Expiry date | Apr 8, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
When supported silver materials are being prepared, deposits of ionic, higher alkali metals, i.e., ionic potassium, rubidium, cesium or combinations thereof on porous supports with surface areas ranging from 0.1 to 7 square meters per gram prior to the deposit of silver improves the selectivity of these materials as catalysts for ethylene oxide. Optimal concentrations of the ionic, higher alkali metals are directly proportional to the surface area of the support.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.