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Abstract

The present application belongs to the technical field of aluminum metallurgy, and specifically relates to a method for producing metallic aluminum and polysilicon with a high-silicon aluminum-containing resource. The method includes: pretreating the high-silicon aluminum-containing resource to obtain an aluminum-silicon oxide material; the aluminum-silicon oxide material is used to produce a metallic aluminum product and a copper-aluminum-silicon alloy with silicon enriched by molten salt electrolysis in a double-chamber electrolytic cell; and the copper-aluminum-silicon alloy is used to produce an aluminum-silicon alloy and/or polysilicon by molten salt electrolysis in a single-chamber electrolytic cell, and further separating the aluminum-silicon alloy by physical methods to obtain polysilicon. The present application has characteristics such as low production cost, continuous electrolysis operations, high product quality, and environmental friendliness.

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First Claim