Method for recovering lithium from sea water
US4243641A · kind A · utility
5Cited by
3References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1978 |
| Grant date | Jan 6, 1981 |
| Priority date | — |
| Expiry date | Sep 22, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J39/04
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for recovering lithium from sea water in which sea water is repeatedly concentrated at specific gravities between 1.13 and 1.24 to thereby separate salts including common salt from the concentrate, removing the salts which separate from the concentrate, diluting the final concentrate so obtained with water, subjecting the diluted concentrate containing lithium and magnesium to a resin exchange treatment in which lithium and magnesium are absorbed on the resin, and treating the resin with an aqueous hydrochloric acid solution to elute lithium from said resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.