Recycling of solids in oxidative pressure leaching of metals using halide ions
US9039806B2 · kind B2 · utility
3Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 11, 2007 |
| Grant date | May 26, 2015 |
| Priority date | — |
| Expiry date | May 15, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention provides a recycling step in an oxidative pressure leaching process for recovery of metals using halide ions, in which a portion of the leached solids are recycled back to the feed to the autoclave, to allow two or more passes through the high temperature leaching step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.