Halide-containing silicon, method for producing the same and use of the same in the purification of metallurgical silicon

摘要

The invention relates to silicon containing halogenide obtained by thermal disintegration of halogenized polysilane, and a method for producing the silicon. The silicon has a halogenide content of 1 at %-50 at %. The invention further relates to the use of the silicon containing halogenide for purifying metallurgical silicon.