Process for increasing the percentage of silicon tetrachloride
AssigneeHuels Aktiengesellschaft
InventorKlaus Ruff
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Abstract
A process is described for increasing the percentage of silicon tetrachloride during the reaction of hydrogen chloride or a mixture of hydrogen chloride and chlorine with substances containing metallic silicon. In this process the chlorosilanes are exposed to a temperature ranging between 300.degree. C. and 1400.degree. C.
Claims2
The method of increasing the percentage content of silicon tetrachloride in the gaseous reaction product mixture obtained by reacting hydrogen chloride or a mixture of hydrogen chloride and chlorine with a substance containing metallic silicon at a reaction temperature ranging from 300.degree. C. to 1400.degree. C., which consists essentially of introducing a chlorosilane of the formula
- SiH.sub.4-n Cl.sub.n
- wherein n is an integer from 1 to 3, inclusive, together with the hydrogen chloride or the mixture of hydrogen chloride and chlorine reactants.
Dependencies are inferred from the claim text.