Metal value recovery from metal sulfide containing ores
US4740243A · kind A · utility
66Cited by
6References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1986 |
| Grant date | Apr 26, 1988 |
| Priority date | — |
| Expiry date | Apr 30, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S423/17
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for recovering at least one first metal from a metal sulfide-containing ore comprising contacting the ore with an aqueous, acidic composition and at least one reducible manganese-containing material at conditions effective (1) to chemically reduce the manganese, (2) solubilize at least a portion of the metal from the sulfide, and (3) at least partially liberate the first metal from the ore; and recovering the first metal from the ore. The use of added ferric ion and/or Thiobacillus ferrooxidans bacteria in the above-noted contacting is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.