Dow Global Technolgoies LLC

Simon G Podkolzin

Robert G Bowman

Richard Michael Wehmeyer

Brien A Stears

Dean M Millar

Albert Edward Schweizer

Mark E Jones

Eric E Stangland

Oxidatively halogenate methane by placing a feedstream that comprises methane, a source of halogen, a source of oxygen and, optionally, a source of diluent gas in contact with a first catalyst (e.g. a solid super acid or a solid super base) that has greater selectivity to methyl halide and carbon monoxide than to methylene halide, trihalomethane or carbon tetrahalide. Improve overall selectivity to methyl halide by using a second catalyst that converts at least part of the feedstream to a mixture of methyl halide, methylene halide, trihalomethane, carbon tetrahalide and unreacted oxygen, and placing that mixture in contact with the first catalyst which converts at least a portion of the methylene halide, trihalomethane and carbon tetrahalide to carbon monoxide, hydrogen halide and water.

Oxidative mono-halogenation of methane

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Midland, MI, United States of America

Simon G Podkolzin