Method for preparing 1,1,1,3,3-pentafluoropropane
US7786335B2 · kind B2 · utility
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21Claims
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Key dates
| Filing date | Nov 3, 2008 |
| Grant date | Aug 31, 2010 |
| Priority date | — |
| Expiry date | Nov 3, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C19/08
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the production of C2-C4 hydrofluorocarbon, such as 1,1,1,3,3-pentafluoropropane, by contacting a non-fluorinated hydrochlorocarbon with a fluorinating agent, such as hydrogen fluoride, in a liquid catalyst system preferably comprising fluorinated superacid catalyst prepared from SbF5, NbF5, TaF5 or TaF5/SnF4 and HF.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.