Preparation of organohalosilanes

Organic compounds -- part of the class 532-570 series – Organic compounds – Silicon containing

Reexamination Certificate

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Reexamination Certificate

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11081691

ABSTRACT:
Organohalosilanes are prepared by reacting metallic silicon particles with an organohalide in the presence of a copper catalyst. A contact mass composed of the metallic silicon and the copper catalyst contains an effective amount of a catalyst alloy containing 0.2–8 wt % of tin and 4–20 wt % of phosphorus which is powdered by atomization.

REFERENCES:
patent: 2380995 (1945-08-01), Rochow et al.
patent: 4500724 (1985-02-01), Ward, III et al.
patent: 4602101 (1986-07-01), Halm et al.
patent: 5059706 (1991-10-01), Degen et al.
patent: 6005130 (1999-12-01), Lewis et al.
patent: 6025513 (2000-02-01), Nakanishi et al.
patent: 6215012 (2001-04-01), Ueno et al.
patent: 6218562 (2001-04-01), Aramata et al.
patent: 6242629 (2001-06-01), Ueno et al.
patent: 6288258 (2001-09-01), Aramata et al.
patent: 6365766 (2002-04-01), Aramata et al.
patent: 6395917 (2002-05-01), Ishizaka et al.
patent: 6506923 (2003-01-01), Inukai et al.
patent: 6686312 (2004-02-01), Aramata et al.
patent: 5-51596 (1993-08-01), None
patent: 6-92421 (1994-11-01), None
patent: 2000-254506 (2000-09-01), None
patent: 2000-296334 (2000-10-01), None
patent: 2001-122880 (2001-05-01), None
patent: 2002-241384 (2002-08-01), None
Komitsky et al., “The influence of promotoer levels on the direct synthesis”, Silicon for the Chemical Industry IV, Geiranger, Norway (1998), pp. 217-225.
Rosch et al., “The starting phase of the MCS-direct synthesis, some experimental observations”, Silicon for the Chemical Industry III, Sandefjord, Norway (1996), pp. 269-273.
Lainer et al., “A method for obtaining dimethyldichlorosilane”, USSR Application Specification No. 617,569, Certificate of inventorship No. 122,749, Jan. 24, 1959.
Lobusovich et al., “A method to produce methylchlorosilanes”, USSR Application Specification No. 903,369, Certificate of inventorship No. 178,817, Mar. 11, 1966.
Lobusovich et al., “Method for prodcution of alkylchlorsilanes”, USSR Application Specification No. 1,152,943, Certificate of inventorship No. 237,892, Nov. 20, 1969.

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