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US 12,467,152 B2Granted
Lithium recovery from lithium salts dissolved in ionic liquids
AssigneeThe Board of Regents of the Nevada System of Higher Education On Behalf of the University of Nevada, Las Vegas
InventorsDavid W. Hatchett, Cassara J. Higgins
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Abstract
Described herein are methods for recovering lithium metal, lithium hydride, or lithium hydroxide from lithium salts by dissolving the lithium salt in ionic liquids and applying a current to the solution.
Claims16
A method for recovering lithium, comprising:
- combining a lithium salt and a nonaqueous acid in water and then dehydrating to form a dehydrated composition comprising the lithium salt and the nonaqueous acid;
- sparging an ionic liquid with an inert gas to remove water and CO2 and adding the sparged an ionic liquid to the dehydrated composition comprising the lithium salt and the nonaqueous acid to form an ionic liquid composition;
- and
- applying a potential to the ionic liquid composition to deposit lithium onto an electrode.
1 more element
Dependencies are inferred from the claim text.