Aluminum smelting temperature selection

专利名称：Aluminum smelting temperature selection发明人：William C. Sleppy,C. Norman Cochran,Perry

A. Foster, Jr.,Warren E. Haupin

申请号：US05/556428申请日：19750307公开号：US03951763A公开日：19760420

摘要：A process for producing aluminum in which alumina is decomposedelectrolytically to aluminum metal in an electrolyte bath between an anode and acathodic interface formed between aluminum metal and the electrolyte bath. The bathconsists essentially of Al.sub.2 O.sub. 3, NaF, and AlF.sub.3, and has a weight ratio NaF toAlF.sub.3 up to 1. 1:1. During decomposition, the bath is maintained at an operatingtemperature greater than 40°C above the cryolite liquidus temperature of the bath andeffective for preventing bath crusting in interfacial areas between bath and aluminummetal.

申请人：ALUMINUM COMPANY OF AMERICA

代理人：Daniel A. Sullivan, Jr.

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