Method and system for pressure oxidation of sulfide gold ores involving enhanced oxygen-sulfide contact
US6395063B1 · kind B1 · utility
11Cited by
4References
42Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 29, 2000 |
| Grant date | May 28, 2002 |
| Priority date | — |
| Expiry date | Sep 29, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A system and method for recovering gold using pressure oxidation is disclosed. In one embodiment, a feed slurry is introduced into multiple compartments or stages of a multi-stage autoclave. In another embodiment, an agitator pump is disposed in each compartment or stage of an autoclave to draw the feed slurry and oxygen into a pump cavity for intimate mixing. Preferably these embodiments are used in combination, and each is believed to contribute to enhanced utilization of the oxygen within the autoclave.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.