Process for the production of difluoromethane

Details Process for the production of difluoromethane Process for the production of difluoromethane

1995-09-20

1998-06-09

Dees, Jose G.

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

Organic compounds

Halogen containing

C07C 1707

Patent

active

057637083

ABSTRACT:
The present invention provides a vapor phase process for the production of difluoromethane, HFC-32. The process of this invention provides for the preparation of HFC-32 by a process that exhibits both good product yield and selectivity.

REFERENCES:
patent: 2744148 (1956-05-01), Ruh et al.
patent: 2745886 (1956-05-01), Ruh et al.
patent: 2748177 (1956-05-01), Miller et al.
patent: 3862995 (1975-01-01), Martens et al.
patent: 4147733 (1979-04-01), Fiske et al.
patent: 5208395 (1993-05-01), Elsheikh
Derwent WPI Acc No: 85-028985/05 Abstract for Showa Denko JP 59225131 Dec. 18, 1984.
Patent Abstracts of Japan vol. 18, No. 668 (C-1289), 16 Dec. 1994 and JP,A, 06 263657 (Showa Denko KK), 20 Sep. 1994.

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