Method for purifying pentafluoroethane
US6307115A · kind A · utility
4Cited by
2References
4Claims
0Family size
Inventors
Key dates
| Filing date | Nov 13, 1997 |
| Grant date | Oct 23, 2001 |
| Priority date | — |
| Expiry date | Nov 13, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C17/38
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to the purification of pentafluoroethane (F125) containing chloropentafluoroethane (F115) by liquid/liquid extraction or by extractive distillation. Perchloroethylene is used as extraction agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.