Title:
Co,Ni,Mn含有リチウム電池滓からの有価金属回収方法
Document Type and Number:
Japanese Patent JP4865745
Kind Code:
B2
Abstract:
Valuable metals such as Mn, Co, Ni and Li are recycled from ternary system Li metal salt of lithium battery residues. The lithium battery residues containing generally equivalent lithium acid metal salt of Co, Ni and Mn are stirred and dipped with hydrochloric acid solution in the concentration of more than 250g/l, or stirred and dipped with sulfuric acid solution in the concentration of more than 200g/l while heating till the temperature of 65 to 80 DEG C, or stirred and dipped for processing with the solution mixed with sulfuric acid solution in the concentration of more than 200g/l and hydrogen peroxide solution in the concentration of more than 20g/l. More than 98% of the three metals of Mn, Co and Ni are extracted with acidic extractant solvent from leach liquor so that the solution containing each metal is produced; therefore, the valuable metals such as Mn, Co, Ni and Li are recycled from these solutions and remaining liquid containing Li after extraction.
Inventors:
Yousuke Yamaguchi
Junzo Hino
Junzo Hino
Application Number:
JP2008031800A
Publication Date:
February 01, 2012
Filing Date:
February 13, 2008
Export Citation:
Assignee:
jx Nippon Mining & Metals Co., Ltd.
International Classes:
H01M10/54; B09B3/00; C02F1/62; C02F1/64; C22B3/04; C22B3/20; C22B3/44; C22B7/00; C22B23/00; C22B26/12; C22B47/00
Domestic Patent References:
| JP10287864A | ||||
| JP2005149889A | ||||
| JP10310436A | ||||
| JP2008231522A | ||||
| JP2002198103A | ||||
| JP2006024482A |
Attorney, Agent or Firm:
Takuo Murai