Title:
スカンジウムの精製方法
Document Type and Number:
Japanese Patent JP6852599
Kind Code:
B2
Abstract:
To provide a simple purification method of scandium that can separate both elements of thorium and uranium from an acidic solution containing scandium in one step.SOLUTION: The purification method of scandium comprises subjecting an acidic solution containing scandium to solvent extraction with use of a mixed extractant containing an isomer mixture of 16-22C tertiary alkyl primary amines and a tri-normal-octyl-amine to be separated into an extraction residual liquid containing scandium and an extractant after the extraction. As a mixed extractant, one containing the tri-normal-octyl-amine in a ratio of 20 vol% to less than 100 vol% based on the isomer mixture of 16-22C tertiary alkyl primary amines is particularly preferred.SELECTED DRAWING: Figure 1
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Inventors:
Hiroshi Shoji
Tatsuya Higaki
Kobayashi Sora
Go Ohara
Osamu Nakai
Tatsuya Higaki
Kobayashi Sora
Go Ohara
Osamu Nakai
Application Number:
JP2017131782A
Publication Date:
March 31, 2021
Filing Date:
July 05, 2017
Export Citation:
Assignee:
Sumitomo Metal Mining Co., Ltd.
International Classes:
C22B59/00; C22B1/02; C22B3/28; C22B3/40; C22B3/42; C22B3/44
Domestic Patent References:
| JP2016108664A | ||||
| JP2016065273A |
Attorney, Agent or Firm:
Masayuki Masabayashi
Hayashi Ichiyoshi
Hayashi Ichiyoshi