Continuous silver refining cell
US5100528A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 1990 |
| Grant date | Mar 31, 1992 |
| Priority date | — |
| Expiry date | Mar 14, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25C7/007
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A continuous silver refining cell comprises a tank containing an electrolyte, at least one vertical cathode disk mounted on a rotating horizontal shaft placed above the tank so that slightly less than half of the disk is immersed in the electrolyte, at least one anode basket containing impure silver anodes immersed in the electrolyte adjacent the cathode disk, and a diaphragm separating the cathode disk from the anode basket to form cathode and anode compartments. A scraper is provided for continuously removing pure silver crystals from the cathode and directing it to the side of the cell. A chain tubular conveyor may be provided for continuously or semi-continuously withdrawing a mud containing gold and other precious metals from the bottom of the cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.