Method and device for extracting and enriching lithium

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United States of America Patent

PATENT NO 9062385
APP PUB NO 20130186760A1
SERIAL NO

13798043

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Abstract

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A method for extracting and enriching lithium, including: (a) providing an electrodialysis device including an electrodialysis cell; (b) dividing the electrodialysis cell into a lithium salt chamber and a brine chamber using an anion exchange membrane; (c) filling the brine chamber with salt lake brine; (d) filling the lithium salt chamber with a Mg2+ free supporting electrolyte solution; (e) placing a conductive substrate coated with an ion sieve in the brine chamber to operate as a cathode; (f) placing a conductive substrate coated with a lithium-intercalated ion sieve in the lithium salt chamber to operate as an anode; and (g) carrying out an electrodialysis.

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Patent Owner(s)

Patent OwnerAddress
CENTRAL SOUTH UNIVERSITY172 TONGZIPO RD HUNAN PROVINCE CHANGSHA CITY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Liu, Xuheng Changsha, CN 6 8
Zhao, Zhongwei Changsha, CN 22 13

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