Inert electrode composition having agent for controlling oxide growth on electrode made therefrom
US4582585A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 18, 1984 |
| Grant date | Apr 15, 1986 |
| Priority date | — |
| Expiry date | Dec 18, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25C3/12
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An improved inert electrode composition is suitable for use as an inert electrode in the production of metals such as aluminum by the electrolytic reduction of metal oxide or metal salt dissolved in a molten salt bath. The composition comprises one or more metal alloys and metal compounds which may include oxides of the metals comprising the alloy. The alloy and metal compounds are interwoven in a network which provides improved electrical conductivity and mechanical strength while preserving the level of chemical inertness necessary for such an electrode to function satisfactorily. The electrode composition further includes a metal compound dopant which will aid in controlling the thickness of a protective oxide layer on at least the bottom portion of an electrode made therefrom during use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.