Title:
スカンジウムの分離精製方法
Document Type and Number:
Japanese Patent JP5454735
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a separation and purification method of scandium, capable of efficiently separating and purifying scandium from a scandium-containing solution by improving back extraction property while securing separability (selectivity) of scandium and impurity elements from the scandium-containing solution.SOLUTION: A solution containing scandium and an organic solvent containing trioctylphosphine with a concentration of 5 v/v% to 20 v/v% are mixed to extract scandium in the organic solvent and the organic solvent and a back extraction starting solution containing one or more kinds of water, hydrochloric acid, sulfuric acid and oxalic acid are mixed to back extract scandium from the organic solvent.
Inventors:
Satoshi Asano
Application Number:
JP2013220414A
Publication Date:
March 26, 2014
Filing Date:
October 23, 2013
Export Citation:
Assignee:
Sumitomo Metal Mining Co., Ltd.
International Classes:
C22B59/00; C01F17/00; C22B3/26; C22B3/44
Domestic Patent References:
| JP2010270359A | ||||
| JP9208222A | ||||
| JP9294211A | ||||
| JP9184028A | ||||
| JP5147932A | ||||
| JP3115534A |
Attorney, Agent or Firm:
Akira Koike
Seiji Iga
Toshiya Fujii
Seiji Iga
Toshiya Fujii