Process for the preparation of vinyl acetate
US5567839A · kind A · utility
26Cited by
26References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 18, 1994 |
| Grant date | Oct 22, 1996 |
| Priority date | — |
| Expiry date | Nov 18, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C67/055
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In a process for the preparation of palladium and palladium/gold shell type catalysts for vinyl acetate production, the improvement comprises using a barium salt to precipitate water-insoluble palladium and optional gold compounds onto a support prior to reduction with a reducing agent. A barium salt additive may also be introduced to the catalyst after reduction to reduce the tendency of the catalyst to deactivate with use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.