Process for the hydrogenation of chloromethanes

Details Process for the hydrogenation of chloromethanes Process for the hydrogenation of chloromethanes

1992-07-09

1993-08-03

Lone, Werren B.

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

Organic compounds

Halogen containing

C07C 1724, C07C 1902

Patent

active

052331067

ABSTRACT:
A process is provided for the hydrogenation of chloromethanes of the formula CH.sub.n Cl.sub.m, where n=0 to 3 and m=4-n, with hydrogen at a temperature of 150.degree. to 250.degree. C. and under an absolute pressure of 1 to 10 bar, by means of a supported catalyst comprising an activated charcoal support with a BET surface area of more than 500 m.sup.2 /g, 0.5 to 20% by weight of copper in elemental or chemically bonded form and 0.01 to 1.0% by weight of rhodium or palladium in elemental or chemically bonded form, and with 0.1 to 10.0% by weight of a water-soluble phosphonium halide.

REFERENCES:
patent: 2992280 (1961-07-01), Olstawski et al.
patent: 3579596 (1971-05-01), Mullin et al.

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