Title:
A separation method of a rare earth element
Document Type and Number:
Japanese Patent JP6256875
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for separating rare earth elements capable of separating, from rare earth elements, radioactive substances included within a raw ingredient based on a simple method.SOLUTION: In a method for mutually separating, from a source liquid including multiple types of rare earth elements and a radioactive substance(s) based on the solvent extraction method, the rare earth elements, the radioactive substance(s) is separated and removed from the rare earth elements by using an organic solvent including an acidic phosphoric acid ester-based, carboxylic acid-based, or diglycolamic acid-based extracting agent in accompaniment of the organic solvent concomitantly with the separation of the multiple types of rare earth elements.
Inventors:
Yumi Mochida
Takahiro Chikazawa
Takuma Yamamoto
Takuhiro Miyamoto
Daisuke Iijima
Takahiro Chikazawa
Takuma Yamamoto
Takuhiro Miyamoto
Daisuke Iijima
Application Number:
JP2014053215A
Publication Date:
January 10, 2018
Filing Date:
March 17, 2014
Export Citation:
Assignee:
Mitsubishi Materials Corporation
Mitsubishi Materials Techno Co., Ltd.
Mitsubishi Materials Techno Co., Ltd.
International Classes:
C22B59/00; C22B3/38; C22B60/02
Domestic Patent References:
| JP45002818B1 | ||||
| JP7034151A |
Foreign References:
| US3154500 |
Attorney, Agent or Firm:
Chiharu Shimizu