Chemical treatment of aluminum cathodes in zinc electrowinning
US5019172A · kind A · utility
0Cited by
3References
5Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 30, 1990 |
| Grant date | May 28, 1991 |
| Priority date | — |
| Expiry date | Apr 30, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25C7/02
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A chemical treatment of an aluminum cathode used in zinc electrowinning consists of contacting the affected areas of the aluminum cathode or the entire surface of the cathode with a dilute hydrochloric acid aqueous solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.