Production of pentafluoroethane

Details Production of pentafluoroethane Production of pentafluoroethane

1999-02-04

2000-10-03

Siegel, Alan

Organic compounds -- part of the class 532-570 series

Organic compounds

Halogen containing

570165, 570168, 570169, C07C 1908, C07C 1720, C07C 17093, B01J 2706

Patent

active

061275867

ABSTRACT:
A process for the production of pentafluoroethane which comprises the steps (i) producing a composition comprising a compound of formula C.sub.2 HCl.sub.x F.sub.y in which x=1,2 or 3 and y=2,3 or 4 provided that x+y is 5, contaminated with a compound of formula C.sub.2 Cl.sub.x+1 F.sub.y, (ii) separating the compound of formula C.sub.2 HCl.sub.x F.sub.y from the compound of formula C.sub.2 Cl.sub.x+1 F.sub.y, and (iii) contacting the compound of formula C.sub.2 HCl.sub.x F.sub.y with hydrogen fluoride in the presence of a fluorination catalyst to produce pentafluoroethane is disclosed.

REFERENCES:
patent: 5155082 (1992-10-01), Tung et al.
patent: 5494876 (1996-02-01), Tsuji et al.
patent: 5494877 (1996-02-01), Tsuji et al.

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