PROCESS FOR THE HYDROGENATION OF CHLOROMETHANES

A process is provided for the hydrogenation of chloromethanes of the formula CHnClm, where n=0 to 3 and m=4-n, with hydrogen at a temperature of 150 DEG to 250 DEG 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 s...

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Hauptverfasser: SCHMIDHAMMER, LUDWIG, DAFINGER, WILLI
Format: Patent
Sprache:eng
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Zusammenfassung:A process is provided for the hydrogenation of chloromethanes of the formula CHnClm, where n=0 to 3 and m=4-n, with hydrogen at a temperature of 150 DEG to 250 DEG 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 m2/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.