Organic compounds -- part of the class 532-570 series – Organic compounds – Halogen containing
Patent
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.
Anthony Joseph D.
E. I. Du Pont de Nemours and Company
Stoll Robert L.
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