Title:
リチウムの回収方法
Document Type and Number:
Japanese Patent JP7003507
Kind Code:
B2
Abstract:
To provide a recovery method of lithium capable of recovering lithium by eluting the same at high elution rate while suppressing chemical cost.SOLUTION: There is provided a recovery method of lithium for recovering lithium from a manufacturing process waste water of a positive electrode material for lithium secondary battery, having an adsorption process S2 for adsorbing a lithium ion to a strong acidic cation exchange resin by supplying a solution containing a lithium ion to the strong acidic cation exchange resin containing a sodium sulfonate group as a functional group and contacting them, and an elution process S3 for eluting the lithium ion adsorbed to the strong acidic cation exchange resin by supplying the strong acidic cation exchange resin to an adsorption liquid containing sodium salt and contacting them.SELECTED DRAWING: Figure 2
Inventors:
Masatoshi Takano
Toshiro Tan
Kenji Takeda
Asano Satoshi
Toshiro Tan
Kenji Takeda
Asano Satoshi
Application Number:
JP2017171052A
Publication Date:
January 20, 2022
Filing Date:
September 06, 2017
Export Citation:
Assignee:
Sumitomo Metal Mining Co., Ltd.
International Classes:
C22B26/12; B01J39/05; B01J47/011; B01J49/53; C02F1/42; C22B3/42; H01M10/54
Domestic Patent References:
| JP50033007B1 | ||||
| JP2002167626A | ||||
| JP2009161794A |
Attorney, Agent or Firm:
Akira Koike
Takaaki Kono
Hiroyuki Murakami
Takaaki Kono
Hiroyuki Murakami