Apparatus for the electrolytic production of metals
US5254232A · kind A · utility
52Cited by
8References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 7, 1992 |
| Grant date | Oct 19, 1993 |
| Priority date | — |
| Expiry date | Feb 7, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25C7/025
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Improved electrolytic cells for producing metals by the electrolytic reduction of a compound dissolved in a molten electrolyte are disclosed. In the improved cells, at least one electrode includes a protective layer comprising an oxide of the cell product metal formed upon an alloy of the cell product metal and a more noble metal. In the case of an aluminum reduction cell, the electrode can comprise an alloy of aluminum with copper, nickel, iron, or combinations thereof, upon which is formed an aluminum oxide protective layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.