Title:
A recovery method of scandium
Document Type and Number:
Japanese Patent JP6004023
Kind Code:
B2
Abstract:
Provided is a method for recovering scandium with which scandium can be efficiently recovered as high purity scandium oxide from a scandium-containing solution containing impurities such as iron without causing problems such as increased cost and safety problems. According to the method for recovering scandium according to the present invention, the pH of a solution containing scandium and iron (scandium-containing solution) is adjusted within the range of not less than -0.5 and less than 1, then scandium oxalate is obtained by adding the pH adjusted solution to an oxalic acid solution, and the scandium oxalate is roasted into scandium oxide.
Inventors:
Ryoma Yamakuma
Tatsuya Higaki
Hidemasa Nagai
Satoshi Asano
Kobayashi Sora
Tatsuya Higaki
Hidemasa Nagai
Satoshi Asano
Kobayashi Sora
Application Number:
JP2015018427A
Publication Date:
October 05, 2016
Filing Date:
February 02, 2015
Export Citation:
Assignee:
Sumitomo Metal Mining Co., Ltd.
International Classes:
C22B59/00; C22B3/44
Domestic Patent References:
| JP8232026A | ||||
| JP2014218719A | ||||
| JP9248463A |
Attorney, Agent or Firm:
Masayuki Masabayashi
Hayashi Ichiyoshi
Hayashi Ichiyoshi