METHOD OF PREPARING LITHIUM HYDROXIDE Russian patent published in 1997 - IPC

Abstract RU 2071819 C1

FIELD: electrochemical methods. SUBSTANCE: lithium hydroxide is prepared by electrodialysis in a three-cell electrodialyzer from carbonate- containing wastes. The latter are dissolved, settled, decanted, filtered, and resultant solution is recycled through central cell of electrodialyzer, in cathode cell of which lithium hydroxide is formed. Solution in central cell is partially desalted and used to dissolve wastes. Electrodialyzer is also provided with cationite and anionite membranes. EFFECT: inexpensive method of lithium hydroxide production proposed.

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RU 2 071 819 C1

Authors

Permjakov V.A.

Mukhin V.V.

Bogomolov V.G.

Dates

1997-01-20—Published

1993-06-10—Filed