Recovery of nickel
US7534407B2 · kind B2 · utility
0Cited by
17References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2006 |
| Grant date | May 19, 2009 |
| Priority date | — |
| Expiry date | Nov 21, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for recovering nickel from a solid feed material containing nickel in the form of millerite is disclosed. The process includes treating a slurry of the solid feed material and a process solution so that all or at least part of the nickel in the millerite forms an acid leachable solid form. The process also includes pressure acid leaching the treated slurry and leaching nickel in solids in the slurry into solution. Finally, the process includes recovering nickel from solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.