Title:
METHOD FOR ENRICHING SCANDIUM
Document Type and Number:
WIPO Patent Application WO/2020/063035
Kind Code:
A1
Abstract:
A method for enriching scandium, comprising the following steps: S1, extracting scandium from a scandium-containing inorganic acid solution using an organic extractant or an organic solvent solution containing an organic extractant to obtain an organic phase containing scandium; and S2, back-extracting and precipitating the organic phase containing scandium using a precipitant solution, followed by separation to obtain a precipitate containing scandium, a precipitation mother liquor, and a no-load organic phase. The precipitant solution plays a role in back-extraction and precipitation at the same time, thereby shortening the operation process and reducing the consumption of raw materials.
Inventors:
WANG WEIWEI (CN)
SUN NINGLEI (CN)
FU GUOYAN (CN)
LIU ZHAOBO (CN)
LIU GUO (CN)
DU SHANGCHAO (CN)
LI NUO (CN)
SUN NINGLEI (CN)
FU GUOYAN (CN)
LIU ZHAOBO (CN)
LIU GUO (CN)
DU SHANGCHAO (CN)
LI NUO (CN)
Application Number:
PCT/CN2019/095692
Publication Date:
April 02, 2020
Filing Date:
July 12, 2019
Export Citation:
Assignee:
CHINA ENFI ENG CORP (CN)
International Classes:
C22B59/00; C01F17/00; C22B3/38; C22B3/40; C22B3/44
Foreign References:
| CN101602519A | 2009-12-16 | |||
| CN109022839A | 2018-12-18 | |||
| CN109266870A | 2019-01-25 | |||
| CN109179480A | 2019-01-11 | |||
| CN101824555A | 2010-09-08 | |||
| US20120207656A1 | 2012-08-16 |
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
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