Catalyst of chromium oxide microspheres and process for its preparation
US4439534A · kind A · utility
12Cited by
4References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 24, 1981 |
| Grant date | Mar 27, 1984 |
| Priority date | — |
| Expiry date | Nov 24, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2982
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
This invention relates to catalysts for gaseous phase fluorination of aliphatic chlorinated derivatives by hydrofluoric acid. The catalysts comprise chromium oxide microspheres obtained by a sol-gel process. This invention also relates to gaseous phase fluorination processes for aliphatic chlorinated derivatives utilizing these catalysts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.