Electroextraction of Ytterbium on the Liquid Lead Cathode in LiCl-KCl Eutectic

被引：10

作者：

Li, Zhuyao ^{[1
,2
]}

Zhu, Liandi ^{[2
]}

Tang, Dandan ^{[1
]}

Dai, Ying ^{[2
]}

He, Feiqiang ^{[2
]}

Gao, Zhi ^{[2
]}

Liu, Cheng ^{[2
]}

Liu, Hui ^{[2
]}

Zhou, Limin ^{[2
]}

Liu, Zhirong ^{[1
,2
]}

Ouyang, Jinbo ^{[2
]}

机构：

[1] East China Univ Technol, State Key Lab Nucl Resources & Environm, Nanchang 330013, Jiangxi, Peoples R China

[2] East China Univ Technol, Sch Chem Biol & Mat Sci, Nanchang 330013, Jiangxi, Peoples R China

来源：

CRYSTALS | 2022年 / 12卷 / 10期

基金：

中国国家自然科学基金;

关键词：

electrochemical extraction; ytterbium; liquid Pb electrode; Pb-Yb alloy; electrochemical behavior; ELECTROCHEMICAL-BEHAVIOR; THERMODYNAMIC PROPERTIES; EXTRACTION; ELECTRODE; HOLMIUM; SALT; MELT; CE;

D O I：

10.3390/cryst12101453

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The reduction mechanisms of Yb(III) on W electrodes in molten LiCl-KCl-YbCl3 were explored at 773 K, and the diffusion coefficient of Yb(III) was determined. Then, various electrochemical techniques were employed to investigate the electroreduction of Yb(III) in molten LiCl-KCl on a liquid Pb film and Pb electrode. Electrochemical signals were associated with forming Pb3Yb, PbYb, Pb3Yb5, and PbYb2. The deposition potentials and equilibrium potentials of four Pb-Yb intermetallics were obtained through open-circuit chronopotentiometry. Metallic Yb was extracted by potentiostatic electrolysis (PE) on a liquid Pb electrode, and XRD analyzed the Pb-Yb alloy obtained at different extraction times. The recovered Yb was found in the form of Pb3Yb and PbYb intermetallics. The extraction efficiency of Yb was calculated according to ICP analysis results, and extraction effectivity could attain 94.5% via PE at -1.86 V for 14 h.

引用

页数：11

共 47 条

[1] Life cycle assessment of grocery, perishable, and general merchandise multi-facility distribution center networks [J].