Electrolytic production of high purity aluminum using ceramic inert anodes
US6416649B1 · kind B1 · utility
26Cited by
36References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2001 |
| Grant date | Jul 9, 2002 |
| Priority date | — |
| Expiry date | Apr 16, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2998/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method of producing commercial purity aluminum in an electrolytic reduction cell comprising ceramic inert anodes is disclosed. The method produces aluminum having acceptable levels of Fe, Cu and Ni impurities. The ceramic inert anodes used in the process may comprise oxides containing Fe and Ni, as well as other oxides, metals and/or dopants.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.