Selective recovery of manganese, lead and zinc
US9249478B2 · kind B2 · utility
7Cited by
24References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2013 |
| Grant date | Feb 2, 2016 |
| Priority date | — |
| Expiry date | Jan 25, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
This invention relates to a method for the selective recovery of manganese and zinc from brines that includes the steps of contacting a brine with an ionic liquid in order to selectively extract manganese and zinc from the brine into the ionic liquid; and treating the ionic liquid containing extracted manganese and zinc with an aqueous solution to selectively precipitate manganese, producing a manganese depleted, zinc rich ionic liquid. The method can further include the steps of treating the manganese depleted, zinc rich ionic liquid with an aqueous solution to selectively precipitate zinc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.