Process for extracting gold from gold-bearing ore
US7985277B2 · kind B2 · utility
3Cited by
20References
24Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 5, 2007 |
| Grant date | Jul 26, 2011 |
| Priority date | — |
| Expiry date | Mar 5, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for extracting gold from a gold-bearing ore. The process includes, first, providing a leaching liquor with thiosulfate anion and ethylenediamine. Next, the leaching liquor is contacted with the gold-bearing ore to form a pregnant leach solution including gold dissolved from the gold-bearing ore. Finally, at least part of the gold in the pregnant leach solution is recovered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.