Process for fluorination of perchloroethylene or of pentachloroethane
US5932776A · kind A · utility
4Cited by
12References
16Claims
0Family size
Inventors
Key dates
| Filing date | Nov 6, 1996 |
| Grant date | Aug 3, 1999 |
| Priority date | — |
| Expiry date | Nov 6, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C17/21
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to catalytic fluorination of perchloroethylene or of pentachloroethane in the gas phase by means of hydrofluoric acid. A mixed catalyst is employed, made up of nickel and chromium oxides, halides and/or oxyhalides deposited on a support consisting of aluminium fluoride or of a mixture of aluminium fluoride and alumina.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.