Title:
SCANDIUM SEPARATION METHOD
Document Type and Number:
WIPO Patent Application WO/2015/122397
Kind Code:
A1
Abstract:
This scandium separation method comprises: a step (step S1) in which an acidic water-soluble solution having a pH of less than 4 and containing scandium is prepared; a step (step S2) in which a first acidic water-soluble fluid is generated by mixing the acidic water-soluble solution and an alkali and adjusting the pH to a range of 4-7; a step (step S3) in which a scandium-containing organic solvent is generated by bringing into contact with each other the first acidic water-soluble fluid and an organic solvent including, as an extracting agent, carboxylic acid and/or carboxylate, and transferring the scandium in the first acidic water-soluble fluid to the organic solvent; and a step (step S4) in which a scandium-containing water-soluble fluid is generated by brining into contact with each other the scandium-containing organic solvent and a second acidic water-soluble fluid and transferring the scandium in the scandium-containing organic solvent to the second acidic water-soluble fluid.
Inventors:
SHIBATA JUNJI (JP)
UESUSUKI YUSUKE (JP)
UESUSUKI YUSUKE (JP)
Application Number:
PCT/JP2015/053606
Publication Date:
August 20, 2015
Filing Date:
February 10, 2015
Export Citation:
Assignee:
SCHOOL CORP KANSAI UNIV (JP)
ISHIHARA SANGYO KAISHA (JP)
ISHIHARA SANGYO KAISHA (JP)
International Classes:
C22B59/00; C22B3/06; C22B3/32; C22B3/44; C22B7/00
Foreign References:
| JP2000313928A | 2000-11-14 | |||
| CN1397653A | 2003-02-19 | |||
| JP2014001430A | 2014-01-09 | |||
| JPH08232026A | 1996-09-10 | |||
| JPS6161688A | 1986-03-29 | |||
| JP3428292B2 | 2003-07-22 | |||
| JPH01133920A | 1989-05-26 | |||
| JP2013189675A | 2013-09-26 |
Attorney, Agent or Firm:
IMY INTERNATIONAL PATENT OFFICE, P. C. (JP)
Patent business corporation eye I international patent firm (JP)
Patent business corporation eye I international patent firm (JP)
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