Electrolytic metal recovery
US4762598A · kind A · utility
2Cited by
0References
8Claims
0Family size
Inventor
Key dates
| Filing date | Jan 12, 1987 |
| Grant date | Aug 9, 1988 |
| Priority date | — |
| Expiry date | Jan 12, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25C1/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Electrolytic recovery of silver metal is accomplished by application of a direct current with controlled ripple such that for any concentration of silver in the electrolyte, the instantaneous magnitude of the electrical potential across the electrodes is sufficient to sustain deposition of silver on the cathode while the peak values of said electrical potential are below the critical potential at and above which silver sulphide is precipitated from solution and/or hydrogen sulphide gas is generated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.