Process for the recovery of gold from an ore in chloride medium with a nitrogen species
US8894740B2 · kind B2 · utility
4Cited by
19References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2011 |
| Grant date | Nov 25, 2014 |
| Priority date | — |
| Expiry date | Aug 24, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process and system for recovery of gold from an ore having the steps of i) providing the ore containing the gold to be recovered, ii) leaching the ore in an oxidative chloride medium, including a nitrogen species to produce a solution comprising gold; and iii) recovering the gold from the solution. The gold in a preferred embodiment is recovered from refractory and carbonaceous ores.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.