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 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...

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Hauptverfasser:	DAFINGER, WILLI, SCHMIDHAMMER, LUDWIG
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
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 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 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.