Catalyst and process for 1,1,1,2-tetrafluoroethane by vapor phas

Details Catalyst and process for 1,1,1,2-tetrafluoroethane by vapor phas Catalyst and process for 1,1,1,2-tetrafluoroethane by vapor phas

1987-06-16

1988-12-20

Evans, J. E.

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

Organic compounds

Halogen containing

570134, C07C 1720, C07C 1704, C07C 1700, C07C 1902

Patent

active

047926430

ABSTRACT:
A novel catalyst is prepared by codepositing hexavalent chromium oxide and a transition metal compound, preferably titanium trichloride, on alumina, followed by fluorinating the resulting combination. The catalyst is useful in the fluorination of a haloethylene of the formula CX.sub.2 .dbd.CHX (where the X's are chlorine or bromine or a combination of the two) in the vapor phase to form 1,1,1,2-tetrafluoroethane.

REFERENCES:
patent: 2744148 (1956-05-01), Ruh et al.
patent: 2885427 (1959-05-01), Ruh et al.
patent: 3431067 (1969-03-01), Kato et al.
patent: 3752850 (1973-08-01), Scherer et al.
patent: 3803241 (1974-04-01), Stolkin et al.

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