Process for the manufacture of octafluoropropane
US4158023A · kind A · utility
30Cited by
2References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 21, 1978 |
| Grant date | Jun 12, 1979 |
| Priority date | — |
| Expiry date | Mar 21, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C17/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Octafluoropropane, C.sub.3 F.sub.8, is prepared by a two-step process. In the first step hexafluoropropene is reacted with hydrogen fluoride in the presence of a chromium oxyfluoride catalyst. The 2H-heptafluoropropane obtained is reacted with fluorine in the presence of a catalyst which contains a subgroup element of the Periodic System as a free metal or as a fluoride. Octafluoropropane is isolated from the resulting gas mixture. Hydrogen fluoride also obtained may be recycled to the first reaction step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.