Title:
A recovery method and a recovery subsystem of a rare metal
Document Type and Number:
Japanese Patent JP6080070
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for recovering rare metals which allows for utilizing input materials without waste, and regenerating the input materials easily so as to recycle, and to provide a device for recovering rare metals which can be easily downsized or enlarged according to an amount of the input materials to be treated.SOLUTION: A method for recovering rare metals comprising: a first process for mixing a rare metal chelate complex and copper ions, replacing at least a part of the rare metals which are coordinated in the rare metal chelate complex, by the copper ions, and obtaining a copper chelate complex and rare metal ions; a second process for separating and recovering the rare metal ions obtained through the first process by electrodialysis using a first cation-exchange membrane; and a third process for recovering copper from the copper chelate complex obtained through the first process by electrolysis and regenerating a chelate agent.
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Inventors:
Hiroshi Takahashi
Application Number:
JP2012248157A
Publication Date:
February 15, 2017
Filing Date:
November 12, 2012
Export Citation:
Assignee:
Akita University
International Classes:
C22B23/00; B01D61/44; B01D61/52; B09B3/00; B09C1/02; B09C1/08; C22B3/24; C22B19/20; C22B26/20; C22B59/00
Domestic Patent References:
| JP3097874A | ||||
| JP53089268A | ||||
| JP56090939A | ||||
| JP60264325A |
Attorney, Agent or Firm:
Noriyuki Yamamoto