Process for the manufacture of octafluoropropane

Details Process for the manufacture of octafluoropropane Process for the manufacture of octafluoropropane

1978-03-21

1979-06-12

Davis, C.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260653, 2606536, C07C 1702, C07C 1710

Patent

active

041580230

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.

REFERENCES:
patent: 3047640 (1962-07-01), Sweeney et al.
patent: 3962358 (1976-06-01), VON Halasz

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