Methods and systems for the extraction of lithium and production of lithium compounds

The integrated process of lithium-selective ion exchange and pH adjustment with anion-selective membranes improves lithium extraction efficiency and purity, producing high-quality lithium products.

WO2026111968A1PCT designated stage Publication Date: 2026-05-28LILAC SOLUTIONS INC
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
LILAC SOLUTIONS INC
Filing Date
2025-11-14
Publication Date
2026-05-28

AI Technical Summary

Technical Problem

The extraction of lithium from resources is challenging due to low concentration and the presence of other predominant ions, making selective extraction difficult.

Method used

An integrated process involving lithium-selective ion exchange, pH adjustment, and metathesis to produce lithium sulfate intermediates, followed by conversion to lithium products such as lithium carbonate and lithium hydroxide, utilizing anion-selective membranes and ion exchange materials.

Benefits of technology

Enhances lithium extraction efficiency and purity, addressing the challenges of low concentration and impurities, and meets the growing demand for lithium in battery-grade products.

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Abstract

The present disclosure relates to integrated systems and processes to produce lithium products, including battery grade lithium carbonate and lithium hydroxide.
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Citation Information

Patent Citations

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  • Processes for producing lithium compounds using reverse osmosis

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  • Removal of impurities from lithium eluate

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  • Methods and systems for processing lithium compounds

    WO2024220812A1