"ELECTROLYTIC PRODUCTION OF HIGH PURITY ALUMINUM USING CERAMIC INERT ANODES"

Application 1631/DELNP/2003 published 2007-09-28, filed 2003-10-09
A method of producing commercial purity aluminum in an electrolytic reduction cell comprising ceramic inert anodes is disclosed. The method produces aluminum having acceptable levels of Fe, Cu and Ni impurities. The ceramic inert anodes used in the process may comprise oxides containing Fe and Ni, as well as other oxides, metals and/or dopants.

Applicant

1)ALCOA INC.,
:ALCOA CORPORATE CENTER, 201 ISABELLA STREET, PITSBURGH, PENNSYLVANIA 15212-5858, U.S.A. U.S.A.

Inventor

1)SIBA P. RAY, 2)ROBERT A. DIMILIA 3)JOSEPH M. DYNYS, 4) XINGHUA LIU, 5)DOUGLAS A. WEIRAUCH 6)FRANKIE E. PHELPS 7)ALFRED F. LACAMERA

International Info

Classification: C25C 3/12
Publication Number: WO 02/083992
Application Date: 2002-04-12

Priority Information

09/835,595 U.S.A. 2001-04-16