Processes for purification and production of fluorocarbons
US7060165B2 · kind B2 · utility
2Cited by
12References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2002 |
| Grant date | Jun 13, 2006 |
| Priority date | — |
| Expiry date | May 7, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C17/386
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention involves processes that utilize an olefinic compound, in particular, hexafluoropropene (HFP) or chlorotrifluoroethene (CFC-1113) as extracting agents in the purification of pentafluoroethane (HFC-125). These processes can utilize recovered HFP as a precursor for the production of heptafluoropropane (HFC-227) or other derivatives.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.