Non-consumable anode and lining for aluminum electrolytic reduction cell
US5284562A · kind A · utility
73Cited by
7References
31Claims
0Family size
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Key dates
| Filing date | Apr 17, 1992 |
| Grant date | Feb 8, 1994 |
| Priority date | — |
| Expiry date | Apr 17, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25C3/08
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An oxidation resistant, non-consumable anode, for use in the electrolytic reduction of alumina to aluminum, has a composition comprising copper, nickel and iron. The anode is part of an electrolytic reduction cell comprising a vessel having an interior lined with metal which has the same composition as the anode. The electrolyte is preferably composed of a eutectic of AlF.sub.3 and either (a) NaF or (b) primarily NaF with some of the NaF replaced by an equivalent molar amount of KF or KF and LiF.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.