Aluminum purification system

Details Aluminum purification system Aluminum purification system

C - Chemistry, Metallurgy

22

B

53/246

C22B 21/06 (2006.01) C22B 21/02 (2006.01) F27B 1/08 (2006.01)

Patent

CA 1141170

ALUMINUM PURIFICATION SYSTEM Abstract of the Disclosure A method for extracting aluminum of substantial purity from furnace products resulting from carbothermic reduction of alumina-bearing ores and contaminated with up to about 30 weight percent of aluminum carbide is disclosed. The method involves contacting the furnace product with a high alumina containing molten slag in the substantial absence of reactive carbon, so as to cause the alumina-containing slag to react with the aluminum carbide, thereby diminishing the aluminum carbide content of the furnace product.

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