Method of purifying hexafluoropropylene oxide
US4134796A · kind A · utility
3Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1977 |
| Grant date | Jan 16, 1979 |
| Priority date | — |
| Expiry date | Nov 17, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D303/48
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for a separation of hexafluoropropylene oxide from hexafluoropropylene by an extractive distillation in the presence of a normally liquid inert compound such as 1,2-dichloroethane, monochlorobenzene, di-isopropyl ether and 1,1,2-trichloroethane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.