Title:
METHOD FOR COLLECTING LITHIUM
Document Type and Number:
WIPO Patent Application WO/2013/153692
Kind Code:
A1
Abstract:
Provided is a method for collecting only lithium from a lithium-containing solid selectively and with high yield. The method is an electrodialytic method, in which lithium ions, which are monovalent metal ions, are permeation-concentrated selectively from a solution containing lithium ions and at least one kind of bivalent transition metal ion selected from the group consisting of iron ions, cobalt ions, nickel ions and manganese ions using an electrodialytic apparatus equipped with a cation exchange membrane through which monovalent metal ions can pass selectively and an anion exchange membrane, wherein the solution contains polyvalent metal ions having a valency of 3 or more.
Inventors:
KIGUCHI AKIRA (JP)
ARITO YUICHI (JP)
ARITO YUICHI (JP)
Application Number:
PCT/JP2012/078215
Publication Date:
October 17, 2013
Filing Date:
October 31, 2012
Export Citation:
Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
C01D15/02; B01D61/44; C02F1/469; C22B26/12; H01M10/54
Foreign References:
| JPH1197076A | 1999-04-09 | |||
| JP2009269810A | 2009-11-19 | |||
| JP2003157913A | 2003-05-30 | |||
| JP2012234732A | 2012-11-29 |
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
Aoki 篤 (JP)
Aoki 篤 (JP)
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