リチウムの吸着方法

Japanese Patent JP7124508

B2

To effectively use adsorption volume of an ion exchange resin and suppress loss of lithium in a method for adsorbing lithium from a manufacturing process wastewater of a positive electrode material for lithium secondary battery to the ion exchange resin.SOLUTION: There is provided an adsorption method of lithium including: conducting an adsorption process by connecting a part of a plurality of ion exchange resins in series, conducting an elution process by connecting a plurality of remaining ion exchange resins in series, connecting the ion exchange resins in the first step in the adsorption process to an end of the ion exchange resins in the elution process to move them to the elution process, connecting the ion exchange resins in the first step in the elution process to an end of the ion exchange resins in the adsorption process to move them to the adsorption process, conducting the adsorption process and the elution process on the plurality of ion exchange resins repeatedly, and conduction of transition from the adsorption process to the elution process when water conduction in the adsorption process becomes 2.5 to 7.5 by BV (Bed volume) value.SELECTED DRAWING: Figure 5

Osamu Ikeda
Asano Satoshi
Masatoshi Takano
Shinya Matsumoto
Yohei Kudo

JP2018134816A

August 24, 2022

July 18, 2018

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Sumitomo Metal Mining Co., Ltd.

C22B26/12; B01J39/05; B01J49/53; B01J49/60; C01D1/32; C02F1/42; C22B3/42; H01M4/525

JP2009161794A
JP61024548A
JP2017210675A
JP2012030208A
JP58081482A
JP2010285655A

Akira Koike
Takaaki Kono
Hiroyuki Murakami

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