Metal recovery by leaching agglomerates of metal-containing material/pyrite
US11236407B1 · kind B1 · utility
2Cited by
14References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2020 |
| Grant date | Feb 1, 2022 |
| Priority date | — |
| Expiry date | Jul 31, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of recovering a metal, such as copper or nickel or zinc or cobalt, from a metal-containing material, such as a metal-containing material that has been categorized by a mine operator as being “non-economic” from the perspective of recovering the metal from the material. Mixing (i) the metal-containing material and (ii) pyrite and forming agglomerates. Leaching agglomerates with a leach liquor, with pyrite generating acid and heat that facilitate recovering the metal from the metal-containing material, and forming a pregnant leach liquor containing metal. Recovering the metal from the pregnant leach liquor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.