Title:
METHOD FOR ELECTROMIGRATION SEPARATION AND ENRICHMENT OF ISOTOPE 6LI
Document Type and Number:
WIPO Patent Application WO/2021/159673
Kind Code:
A1
Abstract:
A method for electromigration separation and enrichment of an isotope 6Li, comprising: uniformly mixing an ionic liquid, a diluent, and a complexing agent to form an organic phase and using the organic phase as an intermediate stage bath liquid; next, enabling an anode, a cathode, an anolyte, a catholyte, the intermediate stage bath liquid, a first isolation film, and a second isolation film to together constitute an electromigration system; and then powering on the electromigration system to obtain the catholyte of the enriched 6Li, wherein the intermediate stage bath liquid is the obtained organic phase; the anolyte comprises a lithium salt solution; the first isolation film is provided between the anolyte and the intermediate stage bath liquid; the second isolation film is provided between the intermediate stage bath liquid and the catholyte. The method is simple to operate, the separation process only involves an electromigration process, can achieve continuous production, greatly improves the separation efficiency, and simultaneously uses a three-stage method for performing electromigration, which avoids the ionization and decomposition of the organic phase. All the solution phases can be recycled, the process is clean and environmentally friendly, and there is no special requirement for the temperature, humidity, air, etc.
Inventors:
SUN JINHE (CN)
WANG MINGYONG (CN)
HUANG CHAOCHI (CN)
JIA YONGZHONG (CN)
ZHANG PENGRUI (CN)
JING YAN (CN)
SHAO FEI (CN)
ZHANG QIAN (CN)
WANG MINGYONG (CN)
HUANG CHAOCHI (CN)
JIA YONGZHONG (CN)
ZHANG PENGRUI (CN)
JING YAN (CN)
SHAO FEI (CN)
ZHANG QIAN (CN)
Application Number:
PCT/CN2020/106555
Publication Date:
August 19, 2021
Filing Date:
August 03, 2020
Export Citation:
Assignee:
QINGHAI INST SALT LAKES CAS (CN)
International Classes:
B01D59/42; C22B26/12
Domestic Patent References:
| WO2014127977A1 | 2014-08-28 |
Foreign References:
| CN102373341A | 2012-03-14 | |||
| CN105536536A | 2016-05-04 | |||
| CN108060308A | 2018-05-22 | |||
| CN109200822A | 2019-01-15 | |||
| CN110106369A | 2019-08-09 | |||
| JP2010029797A | 2010-02-12 | |||
| JPS5371796A | 1978-06-26 |
Attorney, Agent or Firm:
TIANJIN CZTC IP FIRM (CN)
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