Method for preparing organohalosilanes

Details Method for preparing organohalosilanes Method for preparing organohalosilanes

1990-01-02

1990-10-23

Shaver, Paul F.

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

Organic compounds

Silicon containing

C07F 716

Patent

active

049653881

ABSTRACT:
The present invention provides a method for reducing the concentration of methyltrichlorosilane obtained during the reaction of silicon metal with methyl chloride without substantially decreasing the combined yield of methyldichlorosilane, dimethylchlorosilane and dimethyldichlorosilane. The methyl chloride is blended with from 0.05 up to about 44 mole percent of hydrogen, based on combination of methyl chloride and hydrogen. At hydrogen concentrations above about 12 mole percent there is a substantial increase in the methyldichlorosilane content of the reaction product while the concentration of methyltrichlorosilane in the reaction product is maintained below about 4 percent by weight.

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Elsevier (1967), Chpt. 4, "General Principles of the Direct Synthesis of Methylhalosilanes and Other Organohalosilanes", pp. 120-185.
Csakvari, et al, Acta Chim. Acad. Sci. Hung. 39 (1), 33-7 (1963).
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