Conversion of low-boiling constituents from alkyl-chlorosilane s

Details Conversion of low-boiling constituents from alkyl-chlorosilane s Conversion of low-boiling constituents from alkyl-chlorosilane s

1980-11-24

1981-10-27

Shaver, Paul F.

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

Organic compounds

Silicon containing

556478, C07F 708

Patent

active

042975000

ABSTRACT:
A process for converting the low-boiling constituents formed in the preparation of methylchlorosilane to the Muller-Rochow process and which consist essentially of tetramethylsilane, dimethylmonochlorosilane and 2-methylbut-2-ene into a product mixture consisting essentially of trimethylchlorosilane, dimethylchlorosilane and C.sub.2 -.sub.20 alkyldimethylchlorosilanes or C.sub.6-10 -aryldimethylchlorosilanes, comprising contacting the low-boiling product mixture with AlCl.sub.3, AlOCl and/or AlBr.sub.3, together with hydrogen chloride, in the liquid phase at about 40.degree. to +25.degree. C. The mixture prior to conversion may be contacted with HCl and either ZnCl.sub.2 or active charcoal and/or an olefin may be added thereto.

REFERENCES:
patent: 2500652 (1950-03-01), Barry et al.
patent: 2628243 (1953-02-01), Barry et al.
patent: 2752379 (1956-06-01), Wagner et al.

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