Hydrometallurgical processing of precious metal-containing materials
US4615731A · kind A · utility
21Cited by
12References
39Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 9, 1985 |
| Grant date | Oct 7, 1986 |
| Priority date | — |
| Expiry date | Feb 9, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22B11/04
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A hydrometallurgical process is provided for separating heavy metal nuisance elements such as As, Sb, Bi, Sn and Pb from precious metals and/or selenium. The process can be used as a step in an overall hydrometallurgical process for treating refinery residues such as anode slimes for the separation and recovery of valuable metal values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.