Title:
リチウムの回収方法
Document Type and Number:
Japanese Patent JP7031263
Kind Code:
B2
Abstract:
To provide a method for more easily recovering lithium from a manufacturing process wastewater of a positive electrode material for lithium secondary battery containing lithium and aluminum, and reducing recovery cost.SOLUTION: There is provided a recovery method of lithium for recovering lithium from manufacturing process wastewater containing lithium and aluminum of a positive electrode material for lithium secondary battery, having an adsorption process S2 for selectively adsorbing a lithium ion to an ion exchange resin by contacting the ion exchange resin with the manufacturing process wastewater, and an elution process S3 for making a solution containing acid or sodium salt in contract with the ion exchange resin to which the lithium ion is selectively adsorbed in the adsorption process S2 to elute the lithium ion from the ion exchange resin, in which the ion exchange resin is a weakly acidic cation exchange resin having a sulfonic acid group or a sodium salt type functional group thereof.SELECTED DRAWING: Figure 2
Inventors:
Masatoshi Takano
Shinya Matsumoto
Hodo Yonezato
Kenji Takeda
Asano Satoshi
Shinya Matsumoto
Hodo Yonezato
Kenji Takeda
Asano Satoshi
Application Number:
JP2017232984A
Publication Date:
March 08, 2022
Filing Date:
December 04, 2017
Export Citation:
Assignee:
Sumitomo Metal Mining Co., Ltd.
International Classes:
C22B26/12; B01J39/05; B01J49/53; C01D15/06; C02F1/42; C22B3/42; C22B7/00; H01M4/525
Domestic Patent References:
| JP50033007B1 | ||||
| JP2011006275A | ||||
| JP2003157913A |
Attorney, Agent or Firm:
Akira Koike
Takaaki Kono
Hiroyuki Murakami
Takaaki Kono
Hiroyuki Murakami
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