Process for the manufacture of pentafluoroethane
US8058487B2 · kind B2 · utility
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8References
9Claims
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Assignee
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Key dates
| Filing date | Nov 30, 2006 |
| Grant date | Nov 15, 2011 |
| Priority date | — |
| Expiry date | Nov 30, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C17/21
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a continuous process for the fluorination of perchloroethylene (PER) in the gas phase in a single stage with hydrofluoric acid (HF) in the presence of a catalyst to give, as major product, pentafluoroethane. The process is characterized in that it is carried out at a temperature of between 280 and 430° C. and with an HF/PER molar ratio of greater than or equal to 20.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.