New method for producing silicon

摘要

Producing silicon, preferably solar silicon, comprises reducing silicon dioxide with carbon in an arc furnace. The parts of the furnace or the electrodes are made of a graphite material, which in turn are obtained from a carbon material. The carbon material is obtained by pyrolysis of at least one carbohydrate, preferably at least one sugar. An independent claim is also included for a graphite molded part, preferably molded part of the arc furnace, preferably graphite electrode, which is doped with silicon oxide, preferably silicon dioxide and/or silicon carbide.