Process to manufacture 2,3,3,3-tetrafluoropropene
US7985884B2 · kind B2 · utility
18Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2010 |
| Grant date | Jul 26, 2011 |
| Priority date | — |
| Expiry date | Jun 3, 2030 |
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) dehydrofluorinating 1,1,1,2,3-pentafluoropropane in the presence of a dehydrofluorination catalyst comprised of chromium (III) oxide, and alkali metal, to produce a product mixture comprising 2,3,3,3-tetrafluoropropene and less than 20 parts per hundred 1,3,3,3-tetrafluoro-1-propene; 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.