Method for the electrolytic refining of copper
US6511591B1 · kind B1 · utility
4Cited by
1References
5Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 28, 2000 |
| Grant date | Jan 28, 2003 |
| Priority date | — |
| Expiry date | Nov 28, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25C1/12
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present invention concerns a method for the prevention of anode passivation in the electrolytic refining of copper, when periodic reversal current technology is used in electrolysis. The method is particularly suitable for the electrolytic refining of copper at high current densities. Irregular periodic reversal current technology is used in the present method, whereby current reversal is adjusted on the basis of an increase in electrolysis cell voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.