LITHIUM RECOVERY DEVICE AND LITHIUM RECOVERY METHOD

Abstract: this lithium recovery device c is provided with a processing tank that is partitioned into a supply tank and a recovery tank by a lithium ion-conducting electrolyte membrane . in order to selectively move li+ to an aqueous solution rs in the recovery tank from an aqueous solution sw in the supply tank , the aqueous solution sw containing li+ and other metal ions mn+, this lithium recovery device c is also provided with: a first power supply which is connected between a first electrode that has a porous structure and is arranged so as to be in contact with a supply tank -side surface of the electrolyte membrane and a second electrode a that is arranged within the recovery tank , in such a manner that the first electrode functions as the positive electrode; and a sub power supply which is connected in series to the positive electrode of the first power supply , while having the positive electrode thereof connected to a sub electrode that is arranged within the supply tank at a distance from the electrolyte membrane

Inventor(s): Kazuya SASAKI, Kiyoto SHINMURA

CPC Classification: B01D61/461 (SEPARATION (separating solids from solids by wet methods , ; by pneumatic jigs or tables ; by other dry methods ; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields ; centrifuges, vortex apparatus ; presses per se for squeezing-out liquid from liquid-containing material ; treatment of water , e.g. softening by ion-exchange ; {arrangements of air intake cleaners in gas turbine plants } ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation ))

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