Catalyst/promoter for direct synthesis of dimethyldichlorosilane

Details Catalyst/promoter for direct synthesis of dimethyldichlorosilane Catalyst/promoter for direct synthesis of dimethyldichlorosilane

1991-07-31

1992-05-26

Shaver, Paul F.

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

Organic compounds

Silicon containing

502224, 502225, 502226, 502227, 502302, 502303, 502304, 502343, 502345, 502353, C07F 716

Patent

active

051170302

ABSTRACT:
Dimethyldichlorosilane is selectively and directly synthesized by reacting methyl chloride with silicon in the presence of (.alpha.) a catalytically effective amount of metallic copper or a copper compound and a promoter (.beta.) therefor, such promoter (.beta.) comprising (.beta..sub.1) metallic tin and/or metallic anitmony or a tin and/or antimony compound, optionally, (.beta..sub.2) metallic zinc or a zinc compound, and (.beta..sub.3) at least one lanthanide compound; alternatively, the promoter (.beta.) comprises (.beta..sub.1), optionally, (.beta..sub.2), (.beta..sub.3) and (.beta..sub.4) at least one alkali metal or alkali metal compound.

REFERENCES:
patent: 4656301 (1987-04-01), Prud'Homme et al.
patent: 4661613 (1987-04-01), Prud'Homme et al.
Chemical Abstracts, vol. 112, No. 15, Apr. 9, 1990, p. 667.
Chemical Abstracts, vol. 110, No. 6, 6 fevrier 1989, p. 146.

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