Electrode coated with lead or a lead alloy and method of use
US4459189A · kind A · utility
10Cited by
2References
12Claims
0Family size
Inventors
Key dates
| Filing date | Feb 16, 1983 |
| Grant date | Jul 10, 1984 |
| Priority date | — |
| Expiry date | Feb 16, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D5/44
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An electrode in particular an oxygen-evolving anode for metal electrowinning from an acid electrolyte comprises a body of aluminum or other metal coated with lead or a lead alloy by electroplating preferably from a non-aqueous electrolyte. The substrate can be a sheet of aluminium or compacted particles of aluminium plated with lead or a lead alloy. A sheet of lead or lead alloy is clad to the electroplated substrate and advantageously an electrocatalytic material such as surface-activated valve metal sponge is applied to the surface of the lead or lead alloy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.