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US 11,964,876 B2Granted
Lithium extraction in the presence of scalants
AssigneeLilac Solutions, Inc.
InventorsDavid Henry Snydacker, Amos Indranada, Alysia Lukito
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Abstract
The present invention relates to recovery of lithium from liquid resources to produce lithium solutions while limiting impurity precipitation in the lithium solutions.
Claims20
A system for extracting lithium from a liquid resource, the system comprising:
- a) a lithium-selective ion exchange material, wherein the lithium-selective ion exchange material absorbs lithium from the liquid resource to form a first lithium-enriched ion exchange material;
- b) an optional wash component configured to remove the liquid resource from said first lithium-enriched ion exchange material;
- c) a protonation component configured to contact an acidic solution to the first lithium-enriched ion exchange material, wherein lithium and impurities are eluted from said first lithium-enriched ion exchange material to form a first impurities-enriched lithiated acidic solution and a first partially-eluted ion exchange material;
- and
- d) a purification component configured to remove at least some of the impurities from said first impurities-enriched lithiated acidic solution to form a lithium-enriched acidic solution;
- and
- e) a fluid connection configured to either
- i. contact the lithium-enriched acidic solution with the first partially-eluted ion exchange material such that lithium and impurities are further eluted from the first partially-eluted ion exchange material to form a second impurities-enriched lithiated acidic solution having an accumulated amount of lithium and the first partially-eluted ion exchange material, or
- ii. contact the lithium-enriched acidic solution to a second lithium-enriched ion exchange material, wherein lithium and impurities are eluted from said second lithium-enriched ion exchange material to form a second impurities-enriched lithiated acidic solution having an accumulated amount of lithium and a second partially-eluted ion exchange material.
6 more elements
Dependencies are inferred from the claim text.