Purification of silicon halides

Details Purification of silicon halides Purification of silicon halides

1985-03-18

1988-07-05

Cooper, Jack

Chemistry of inorganic compounds

Silicon or compound thereof

Halogen containing

423341, C01B 33107

Patent

active

047553707

ABSTRACT:
A method for the selective removal of boron halides and other Lewis acid-type impurities from silicon halides is disclosed. Treatment of contaminated silicon halides with siloxanes, which react with the impurities, allow the distillation of silicon halide which is virtually free from contamination within extremely low limits of detectability.

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V. E. Wiberg and U. Kruerke, Uber die Spaltung der Silicium-Sauerstoff-Bindung durch Borhalogenide, Z. Naturforschg., 8 b, 610-611 [1953], eingeg. am 11, Sep. 1953.
P. A. McCusker and T. Ostdick, O.S.B., Reactions of Haloboranes with Organocyclosiloxanes. I. Boron Chloride with Methyl and Ethyl Trimer and Tetramer, J. of Amer. Chem. Soc. 80:1103-1106 (1958), paper presented to ACS meeting, Sep. 30, 1957.
P. A. McCusker and T. Ostdick, O.S.B., Reactions of Haloboranes with Organocyclosiloxanes. II. Boron Fluoride with Methyl and Ethyl Trimer and Tetramer, J. of Amer. Chem. Soc. 81:5550-5553 (1959).

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