Process for recovering lithium from brine by salting out lithium sulfate monohydrate
US4287163A · kind A · utility
33Cited by
6References
17Claims
0Family size
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Inventors
Key dates
| Filing date | May 29, 1979 |
| Grant date | Sep 1, 1981 |
| Priority date | — |
| Expiry date | May 29, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S159/903
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A salting-out process for recovering lithium from brines which have been concentrated by solar or thermal evaporation. Soluble sulfate salts are added to the strong brine solutions containing lithium to yield lithium sulfate monohydrate. Subsequent treatment of some residual brines with a strong acid will crystallize quantities of boron present as boric acid. Depending on the time of year and type of brine being used, a brine solar heating or plant evaporation system is provided to enhance the recovery processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.