Non-carbon anodes
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United States of America Patent
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Dec 7, 2010
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app pub date -
Mar 18, 2005
filing date -
Mar 18, 2004
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Abstract
An anode for electrowinning of aluminium from alumina comprises a cobalt-containing metallic outer part that is covered with an integral oxide layer containing predominantly cobalt oxide CoO. The integral oxide layer can be formed by surface oxidation of cobalt from the metallic outer part before use.
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