Title:
METHOD FOR ELECTROCHEMICAL EXTRACTION OF URANIUM FROM SEAWATER USING OXYGEN VACANCY-CONTAINING METAL OXIDE
Document Type and Number:
WIPO Patent Application WO/2021/121167
Kind Code:
A1
Abstract:
Disclosed is a method for electrochemical extraction of uranium from seawater using an oxygen vacancy-containing metal oxide. The method comprises: adding propanetriol to a solution of indium nitrate in isopropanol, then transferring the resulting solution to a high-temperature high-pressure reaction vessel for reaction to obtain spherical indium hydroxide solids; dissolving the spherical indium hydroxide solids in deionized water, then transferring the resulting solution to a high-temperature high-pressure reaction vessel for reaction to obtain flake-like indium hydroxide solids; calcining the flake-like indium hydroxide solids to obtain calcined oxygen vacancy-containing In 2O 3-x; adding the In 2O 3-x to ethanol, then adding a membrane solution; applying the resulting solution to a carbon paper evenly and allowing to dry naturally; clamping the dried carbon paper using a gold electrode, which is to be used as the working electrode in a three-electrode system, wherein a platinum wire is used as the counter electrode and a calomel electrode is used as the reference electrode; and adding simulated seawater to an electrolytic cell, placing the three-electrode system in the simulated seawater in the electrolytic cell, stirring the simulated seawater to allow elctrolysis so as to achieve the extraction of uranium.
Inventors:
ZHU WENKUN (CN)
HE RONG (CN)
LI YI (CN)
DUAN TAO (CN)
LEI JIA (CN)
CHEN TAO (CN)
YANG FAN (CN)
HE RONG (CN)
LI YI (CN)
DUAN TAO (CN)
LEI JIA (CN)
CHEN TAO (CN)
YANG FAN (CN)
Application Number:
PCT/CN2020/135832
Publication Date:
June 24, 2021
Filing Date:
December 11, 2020
Export Citation:
Assignee:
UNIV SW SCI & TECH SWUST (CN)
International Classes:
C01G15/00; C25B1/00
Foreign References:
| CN110952107A | 2020-04-03 | |||
| CN109999779A | 2019-07-12 | |||
| JPS55124503A | 1980-09-25 | |||
| CN109867333A | 2019-06-11 | |||
| CN109942076A | 2019-06-28 |
Other References:
CHONG LIU;PO-CHUN HSU;JIN XIE;JIE ZHAO;TONG WU;HAOTIAN WANG;WEI LIU;JINSONG ZHANG;STEVEN CHU;YI CUI: "A half-wave rectified alternating current electrochemical method for uranium extraction from seawater", NATURE ENERGY, vol. 2, 17007, 17 February 2017 (2017-02-17), pages 1 - 8, XP055451830, DOI: 10.1038/nenergy.2017.7
Attorney, Agent or Firm:
CHINA FARFIR INTELLECTUAL PROPERTY AGENCY (CN)
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