Process for the preparation of silicon tetrachloride

Details Process for the preparation of silicon tetrachloride Process for the preparation of silicon tetrachloride

C - Chemistry, Metallurgy

01

B

23/179

C01B 33/08 (2006.01) C01B 33/107 (2006.01)

Patent

CA 1230465

PROCESS FOR THE PREPARATION OF SILICON TETRACHLORIDE ABSTRACT OF THE DISCLOSURE The invention relates to the preparation of silicon tetrachloride by reacting material containing SiO2 with chlorine in the presence of carbon and metal halides and especially chlorides of the fifth main or subsidiary group of the Periodic Table at temperatures in the range of from 500 to 1200°C. The material containing SiO2 has a BET surface area of at least 0.1 m2/g and the carbon has a BET surface area of at least 0.5 m2/g.

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