Process for manufacture of 1,1,1,2-tetrafluoroethane

Details Process for manufacture of 1,1,1,2-tetrafluoroethane Process for manufacture of 1,1,1,2-tetrafluoroethane

1989-02-24

1993-01-05

Stoll, Robert L.

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

Organic compounds

Halogen containing

C07C 1700

Patent

active

H00011290

ABSTRACT:
An improved process is disclosed for the manufacture of 1,1,1,2-tetrafluoroethane by the vapor-phase reaction of 2-chloro-1,1,1-trifluoroethane with hydrogen fluoride in the presence of an inorganic chromium (III) catalyst which includes co-feeding molecular chlorine to extend catalyst activity.

REFERENCES:
patent: 4052470 (1977-10-01), Nychka et al.
patent: 4129603 (1978-12-01), Bell
Hudlicky in Chemistry of Organic Fluoride Compounds, MacMillan Co., New York, NY (1962), p. 98.
Sheppard and Sharts in Organic Fluorine Chemistry, W. A. Benjamin, Inc., New York, NY (1969), pp. 76-77.

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