Manufacture of fluoroethylenes and chlorofluoroethylenes

Details Manufacture of fluoroethylenes and chlorofluoroethylenes Manufacture of fluoroethylenes and chlorofluoroethylenes

1991-11-06

1994-05-24

Siegel, Alan

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

Organic compounds

Halogen containing

570156, C07C 1702, C07C 1734

Patent

active

053150457

ABSTRACT:
The invention relates to hydrogenolysis of a chlorofluoroethane XYClC--CClX'Y' or of a chlorofluoroethylene XClC.dbd.CX'Y (where at least one of the symbols X, X', Y and Y' is a fluorine atom and the others are hydrogen or chlorine atoms) which is performed on a mixed catalyst based on copper or silver and on at least one platinum group metal (Ru, Rh, Pd, Os, Ir, Pt), these metals being deposited on a support.

REFERENCES:
patent: 2697124 (1954-12-01), Mantell
patent: 2802887 (1957-08-01), Miller
patent: 3564064 (1971-02-01), Nakagawa
patent: 4876405 (1989-10-01), Gervasutti
Bi-Pd Catalyst for Selective Hydrodechlorination of 1,1,2-Trichlorotrifluoroethane to Trifluoroethene, a Key Intermediate to 1,1,1,2-Tetrafluoroethane as a CFC Replacement for Refrigeration, Ohnishi, et al., The Chemical Society of Japan, Chemistry Letters, pp. 841-844, 1991.

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