Bulk catalysts based on chromium and on nickel for the gas-phase fluorination of halogenated hydrocarbons
US6649560B2 · kind B2 · utility
10Cited by
4References
12Claims
0Family size
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Key dates
| Filing date | Mar 28, 2002 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | Mar 28, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C17/21
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Catalysts which are useful in the fluorination of halogenated hydrocarbons by HF in the gas phase are obtained by simple impregnation of a bulk chromium oxide with a solution of a nickel derivative, the chromium oxide used exhibiting a BET specific surface of greater than 150 m2/g and a pore volume of greater than 0.15 ml/g.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.