Method of manufacturing aluminum in a Hall-Heroult cell
US4379033A · kind A · utility
9Cited by
10References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 9, 1981 |
| Grant date | Apr 5, 1983 |
| Priority date | — |
| Expiry date | Mar 9, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25C3/12
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Aluminum is manufactured in a Hall-Heroult cell employing a non-consumable anode having a substantially flat working surface produced by a process wherein at least the portion of a conductive core that is exposed to the electrolyte bath is coated with a composition of higher resistivity than the core composition to provide uniform current density at all regions of the working surface of the anode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.