Process for preparing methylchlorosilanes

Details Process for preparing methylchlorosilanes Process for preparing methylchlorosilanes

2007-09-18

2009-06-23

Price, Elvis O (Department: 1621)

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

Organic compounds

Silicon containing

C556S466000, C556S469000, C556S472000, C556S476000, C556S477000

Reexamination Certificate

active

07550620

ABSTRACT:
The invention relates to a process for the direct synthesis of methylchlorosilanes by reaction of chloromethane with a contact composition comprising silicon and copper catalyst, wherein the concentration of oxygen in the chloromethane used is reduced by mixing a) chloromethane which contains oxygen, and b) chloromethane which contains a gaseous boron compound.

REFERENCES:
patent: 0348902 (1990-01-01), None
patent: 0893448 (1999-01-01), None
patent: 0893448 (1999-01-01), None
Catalyzed Direct Reactions of Silicon; K.M. Lewis, D.G. Rethwisch; Elsevier 1993, pp. 1 to 66.
Silicon for the Direct Process to Methylchlorosilanes; Harry Mortem Rong; Dissertation, University of Trondheim, Norway; 1992, p. 53.
Ullmann's Encyclopedia of Industrial Chemistry; Release 2006, 7th Edition.
Handbook of Heterogeneous Catalysis; VCH Verlagsgesellschaft mbH, Weinheim, 1997; vol. 4 “The Direct Process to Methylchlorosilanes”, B. Pachaly, pp. 1791-1793.
Harry Morten Rong: “Silicon for the Direct Process to Methylchlorosilanes”, 1992, Norges Tekniske Hogskole, Trondheim.

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