Catalysts and process to manufacture 2,3,3,3-tetrafluoropropene
US8227649B2 · kind B2 · utility
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5References
18Claims
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Key dates
| Filing date | Jul 22, 2011 |
| Grant date | Jul 24, 2012 |
| Priority date | — |
| Expiry date | Jul 22, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C17/25
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Disclosed is a process for the manufacture of 2,3,3,3-tetrafluoropropene comprising: (a) contacting 1,1,1,2,3-pentafluoropropane with a catalyst comprised of chromium (III) oxide and from 0.1% to 2% of an alkali metal disposed on the surface of said catalyst, to produce a product mixture comprising 2,3,3,3-tetrafluoropropene and hydrogen fluoride; and (b) recovering said 2,3,3,3-tetrafluoropropene from the product mixture produced in (a).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.