Process for recovering gold
US4397690A · kind A · utility
4Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 20, 1982 |
| Grant date | Aug 9, 1983 |
| Priority date | — |
| Expiry date | Sep 20, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Gold is recovered from a material including gold and molybdenum or tungsten by contacting the material with an aqueous solution of hydrogen iodide and iodine to solubilize the gold without solubilizing the molybdenum or tungsten and recovering the gold from the solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.