Metal value recovery from carbonaceous ores
US4801329A · kind A · utility
46Cited by
3References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 12, 1987 |
| Grant date | Jan 31, 1989 |
| Priority date | — |
| Expiry date | Mar 12, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S423/13
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for recovering a first metal, e.g., gold, from a carbonaceous ore comprising contacting the ore with an added metal component other than an alkali metal or alkaline earth metal component in an amount effective to at least promote the oxidation of carbonaceous material in the ore, the contacting occurring at conditions effective to (1) chemically oxidize at least a portion of the carbonaceous material, and (2) at least partially liberate the first metal from the ore; and recovering the first metal from the ore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.