Systems and methods for metal recovery
US8920773B2 · kind B2 · utility
1Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2012 |
| Grant date | Dec 30, 2014 |
| Priority date | — |
| Expiry date | Mar 13, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Various embodiments provide a process roasting a metal bearing material under oxidizing conditions to produce an oxidized metal bearing material, roasting the oxidized metal bearing material under reducing conditions to produce a roasted metal bearing material, leaching the roasted metal hearing material in a basic medium to yield a pregnant leach solution, conditioning the pregnant leach solution to thrill a preprocessed metal bearing material; and leaching the preprocessed metal bearing material in acid medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.