Process for preparing methylchlorosilanes

Details Process for preparing methylchlorosilanes Process for preparing methylchlorosilanes

2006-12-26

2006-12-26

Barts, Samuel (Department: 1621)

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

Organic compounds

Silicon containing

Reexamination Certificate

active

07153992

ABSTRACT:
The invention relates to a process for the direct synthesis of methylchlorosilanes by reaction of chloromethane with a contact composition comprising silicon, copper catalyst and a total proportion of sodium and potassium of from 10 to 400 ppm.

REFERENCES:
patent: 4661613 (1987-04-01), Prud'Homme et al.
patent: 5306328 (1994-04-01), Streckel et al.
patent: 38 41 417 (1990-06-01), None
patent: 43 42 910 (1994-09-01), None
patent: 0 470 020 (1992-02-01), None
patent: WO 2004/063206 (2004-07-01), None
Derwent Abstract Corresponding to DE 42 42 910 A1 [AN 1994-295714].
Derwent Abstract corresponding to EP 0 470 020 [AN 1992-043362].
Derwent Abstract corresponding to DE 38 41 417 [AN 1990-180207].
Derwent Abstract corresponding to WO 2004/063206 [AN 2004-462269].
Lewis, K.M. et al., “Catalyzed Direct Reactions of Silicon,” Elsevier, Studies in Organic Chemistry 49, 1993, pp. 1-22.
Øye, H.A. et al., “Silicon for Chemical Industry—Geiranger—Norway,” Institute of Inorganic Chemistry, The Norwegian Institute of Technology, Jun. 16-18, 1992; pp. 11-23.
Rong, H.M. Dr.—Thesis, “Silicon for the Direct Process to Methylchlorosilanes,” Institutt for Uorganisk Kjemi, 1992, Norway.

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