Electrolytic metal recovery method
US5783060A · kind A · utility
3Cited by
4References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 4, 1996 |
| Grant date | Jul 21, 1998 |
| Priority date | — |
| Expiry date | Dec 4, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25C1/20
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The cell controller 18 responds to a number of specific conditions including a flow switch 24 output signal 34 which indicates that fresh solution flows from a reservoir 14 into the metal solution tank 12. The cell will be caused to operate in the plating mode in response to the detection of fresh solution flow, and cell performance can be monitored by comparing an estimate of metal released into the solution based on flow of fresh solution and a measurement of metal recovered. The invention is particularly advantageous for controlling the electrolytic recovery of silver from photographic processing solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.