Electrolytic production of high purity aluminum using ceramic inert anodes

Patent · Tue Jan 01 00:00:00 EST 2002

OSTI ID:874566

Ray, Siba P ^[1]; Liu, Xinghua ^[2]; Weirauch, Douglas A ^[1]; DiMilia, Robert A ^[3]; Dynys, Joseph M ^[4]; Phelps, Frankie E ^[5]; LaCamera, Alfred F ^[6]

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1. Murrysville, PA
2. Monroeville, PA
3. Baton Rouge, LA
4. New Kensington, PA
5. Apollo, PA
6. Trafford, PA

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.

• Research Organization: Alcoa Technical Center/Aluminum Company of America (US)
• DOE Contract Number: FC07-98ID13666
• Assignee: Alcoa Inc. (Pittsburgh, PA)
• Patent Number(s): US 6416649
• OSTI ID: 874566
• Country of Publication: United States
• Language: English

Related Subjects

electrolytic
production
purity
aluminum
ceramic
inert
anodes
method
producing
commercial
reduction
cell
comprising
disclosed
produces
acceptable
levels
impurities
process
oxides
containing
metals
andor
dopants
inert anode
reduction cell
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