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Inert anode containing base metal and noble metal useful for the electrolytic production of aluminum

United States Patent

December 19, 2000
View the Complete Patent at the US Patent & Trademark Office
An inert anode for production of metals such as aluminum is disclosed. The inert anode comprises a base metal selected from Cu and Ag, and at least one noble metal selected from Ag, Pd, Pt, Au, Rh, Ru, Ir and Os. The inert anode may optionally be formed of sintered particles having interior portions containing more base metal than noble metal and exterior portions containing more noble metal than base metal. In a preferred embodiment, the base metal comprises Cu, and the noble metal comprises Ag, Pd or a combination thereof.
Ray; Siba P. (Murrysville, PA), Liu; Xinghua (Monroeville, PA)
Alcoa Inc. (Pittsburgh, PA)
09/ 428,004
October 27, 1999
GOVERNMENT CONTRACT This invention was made with Government support under Contract No. DE-FC07-98ID13666 awarded by the Department of Energy. The Government has certain rights in this invention.