Electrochemical studies based on the extraction of Zr on Cu electrode in the LiCl-KCl molten salt

被引：26

作者：

Ding, Li ^{[1
,2
]}

Yan, Yongde ^{[1
,2
,5
]}

Smolenski, Valeri ^{[3
,4
]}

Novoselova, Alena ^{[3
,4
]}

Xue, Yun ^{[1
,2
]}

Ma, Fuqiu ^{[1
,2
]}

Zhang, Milin ^{[1
,2
,5
]}

机构：

[1] Harbin Engn Univ, Yantai Res Inst, Yantai 264006, Shandong, Peoples R China

[2] Harbin Engn Univ, Grad Sch, Yantai 264006, Shandong, Peoples R China

[3] Inst High Temp Electrochem UB RAS, Ekaterinburg 620990, Russia

[4] Ural Fed Univ, Inst Phys & Technol, Dept Rare Met & Nanomat, Ekaterinburg 620990, Russia

[5] Heihe Univ, Coll Sci, Heihe 164300, Heilongjiang, Peoples R China

来源：

SEPARATION AND PURIFICATION TECHNOLOGY | 2021年 / 279卷

基金：

中国国家自然科学基金;

关键词：

Zirconium; Spent nuclear fuel; Electrorefining; Molten salt; Nucleation; ANODIC-DISSOLUTION; ZIRCONIUM BEHAVIOR; ALLOY; REDUCTION; CHLORIDE; OXIDE; CODEPOSITION; LIF-KF-ZRF4; TEMPERATURE; PRODUCT;

D O I：

10.1016/j.seppur.2021.119683

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The electrochemical behaviour of Zr(IV) ions in LiCl-KCl molten salt solutions was investigated via different electrochemical techniques on W-inert and Cu-active electrodes. It was established that the electrochemical reduction process on inert electrode proceeds in two consecutive stages. The composition of Cu-Zr intermetallic compounds formed on an active copper electrode was determined, and the specific thermodynamic characteristics of the formed intermetallic compounds were calculated. The progressive nucleation of Zr was determined based on the comparison between experimental results and theoretical values of the two nucleation models. Finally, the metallic Zr and Cu5Zr alloy were successfully extracted from the molten salt via potentiostatic electrolysis.

引用

页数：7

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