Title:
METHOD FOR RECOVERING SCANDIUM
Document Type and Number:
WIPO Patent Application WO/2024/053596
Kind Code:
A1
Abstract:
(Problem) The purpose of the present invention is to provide a method for recovering rare-earth elements comprising, while recovering scandium from iron and steel slag, crudely separating scandium and a rare-earth element other than scandium. (Solution) The method is characterized by multiple leaching at different pH ranges of rare-earth elements including scandium from iron and steel slag. The present invention is characterized by further combining a leachate obtained by the method with an element separation step to allow highly efficient recovery of scandium.
Inventors:
HIRATA JUNICHI (JP)
ISHIKAWA KYOHEI (JP)
AIMOTO MICHIHIRO (JP)
SHIMADA YUSUKE (JP)
HOSHINO MANABU (JP)
ISHIKAWA KYOHEI (JP)
AIMOTO MICHIHIRO (JP)
SHIMADA YUSUKE (JP)
HOSHINO MANABU (JP)
Application Number:
PCT/JP2023/032202
Publication Date:
March 14, 2024
Filing Date:
September 04, 2023
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
C22B59/00; C22B3/06; C22B3/22; C22B3/24; C22B3/26; C22B3/28; C22B3/32; C22B3/38; C22B7/04
Domestic Patent References:
| WO2020191504A1 | 2020-10-01 |
Foreign References:
| CN101215640A | 2008-07-09 | |||
| JP2021050377A | 2021-04-01 | |||
| JP2016160465A | 2016-09-05 |
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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