Oxidative pressure leach recovery using halide ions
US6315812A · kind A · utility
13Cited by
16References
41Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 28, 1999 |
| Grant date | Nov 13, 2001 |
| Priority date | — |
| Expiry date | Apr 28, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for recovering a precious metal from a host material, comprises the steps of subjecting the host material to an oxidative pressure leach process, in the presence of a halide ion constituent which is reactive with the precious metal, and at a temperature sufficient to cause at least a portion of the precious metal to be extracted by a leach solution; and recovering the precious metal from the leach solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.