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Title:
METHOD FOR RECOVERING HIGH-PURITY SCANDIUM
Document Type and Number:
WIPO Patent Application WO/2016/084830
Kind Code:
A1
Abstract:
Provided is a method for recovering scandium, with which it is possible to easily and efficiently recover high-purity scandium from nickel oxide ores. This method for recovering scandium involves passing a solution containing scandium through an ion exchange resin, then subjecting the eluant eluted from the ion exchange resin to solvent extraction and separating the extraction residual liquid and the extraction agent after extraction, then performing an oxalation process on the extraction residual liquid to obtain a scandium oxalate precipitate, and roasting the precipitate to obtain scandium oxide, wherein the method is characterized in that an amine-based extraction agent is used as the extraction agent for solvent extraction.

Inventors:
MATSUOKA ITSUMI (JP)
NAGAI HIDEMASA (JP)
KUDO KEIJI (JP)
MATSUMOTO SHIN-YA (JP)
HIGAKI TATSUYA (JP)
OZAKI YOSHITOMO (JP)
SHOUJI HIROFUMI (JP)
KOBAYASHI HIROSHI (JP)
Application Number:
PCT/JP2015/083020
Publication Date:
June 02, 2016
Filing Date:
November 25, 2015
Export Citation:
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Assignee:
SUMITOMO METAL MINING CO (JP)
International Classes:
C22B59/00; C01F17/212; C22B1/02; C22B3/08; C22B3/42; C22B3/44
Domestic Patent References:
WO2014181721A12014-11-13
Foreign References:
JP2004256470A2004-09-16
Other References:
See also references of EP 3208352A4
Attorney, Agent or Firm:
SHOBAYASHI, Masayuki et al. (JP)
Right wood Masayuki (JP)
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