Title:
リチウム抽出方法
Document Type and Number:
Japanese Patent JP6644314
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a lithium extraction method which can efficiently extract lithium in a lithium ion battery with a simple operation.SOLUTION: A lithium extraction method comprises a calcining step of calcining a lithium ion battery to obtain a calcined product, a crushing step of crushing the calcined product to obtain a crushed product, a sieving step of sieving the crushed product to obtain granules of a predetermined diameter, and a hydrothermal treatment step of heating an alkali metal salt aqueous solution having a specified quantity of granules added thereto.SELECTED DRAWING: None
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Inventors:
Kazuhiko Tozeda
Tetsuya Ishimoto
Ryo Sasai
Tetsuya Ishimoto
Ryo Sasai
Application Number:
JP2016040140A
Publication Date:
February 12, 2020
Filing Date:
March 02, 2016
Export Citation:
Assignee:
Taiheiyo Cement Co., Ltd.
Shimane University
Shimane University
International Classes:
C22B26/12; C22B1/02; C22B3/04; C22B7/00
Domestic Patent References:
| JP2014055312A | ||||
| JP2014156648A |
Other References:
宮永洋 他,水熱処理法によるリチウムイオン二次電池からの有価・有害元素の回収プロセスの開発,第18回秋季シンポジウム 第1回アジア-オセアニアセラミック連盟国際会議 講演予稿集,社団法人 日本セラミックス協会,2005年 9月27日,p.152, 2E08
Attorney, Agent or Firm:
Creation International Patent Office