Electrochemical extraction of neodymium by co-reduction with aluminum in LiCl-KCl molten salt

Yong De Yan; Yan Lu Xu; Mi Lin Zhang; Yun Xue; Wei Han; Ying Huang; Qiong Chen; Zhi Jian Zhang

doi:10.1016/j.jnucmat.2012.09.008

Electrochemical extraction of neodymium by co-reduction with aluminum in LiCl-KCl molten salt

Yong De Yan, Yan Lu Xu, Mi Lin Zhang, Yun Xue, Wei Han, Ying Huang, Qiong Chen, Zhi Jian Zhang

Harbin Engineering University

Research output: Contribution to journal › Article › peer-review

52 Scopus citations

Abstract

The electrochemical behavior of Nd(III) ions in LiCl-KCl and LiCl-KCl-AlCl₃ melts on a Mo electrode at 723 K was studied by various electrochemical techniques. The results showed that Nd(III) ions are reduced to Nd(0) through two consecutive steps, and the underpotential deposition of neodymium on pre-deposited Al electrode formed two kinds of Al-Nd intermetallic compounds in LiCl-KCl-AlCl₃ solutions. The electrochemical extraction of neodymium was carried out in LiCl-KCl-AlCl ₃ melts on a Mo electrode at 873 K by potentiostatic and galvanostatic electrolysis. The extraction efficiency was 99.25% after potentiostatic electrolysis for 30 h. Al-Li-Nd bulk alloy was obtained by galvanostatic electrolysis. X-ray diffraction (XRD) suggested that Al ₂Nd and Al₃Nd phases were formed in Al-Li-Nd alloy. The microstructure and micro-zone chemical analysis of Al-Li-Nd alloy were characterized by scanning electron microscopy (SEM) with energy dispersive spectrometry (EDS), respectively.

Original language	English
Pages (from-to)	152-159
Number of pages	8
Journal	Journal of Nuclear Materials
Volume	433
Issue number	1-3
DOIs	https://doi.org/10.1016/j.jnucmat.2012.09.008
State	Published - 2013
Externally published	Yes

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@article{6baeb2c7791a444ead77fe4709f2ca83,

title = "Electrochemical extraction of neodymium by co-reduction with aluminum in LiCl-KCl molten salt",

abstract = "The electrochemical behavior of Nd(III) ions in LiCl-KCl and LiCl-KCl-AlCl3 melts on a Mo electrode at 723 K was studied by various electrochemical techniques. The results showed that Nd(III) ions are reduced to Nd(0) through two consecutive steps, and the underpotential deposition of neodymium on pre-deposited Al electrode formed two kinds of Al-Nd intermetallic compounds in LiCl-KCl-AlCl3 solutions. The electrochemical extraction of neodymium was carried out in LiCl-KCl-AlCl 3 melts on a Mo electrode at 873 K by potentiostatic and galvanostatic electrolysis. The extraction efficiency was 99.25% after potentiostatic electrolysis for 30 h. Al-Li-Nd bulk alloy was obtained by galvanostatic electrolysis. X-ray diffraction (XRD) suggested that Al 2Nd and Al3Nd phases were formed in Al-Li-Nd alloy. The microstructure and micro-zone chemical analysis of Al-Li-Nd alloy were characterized by scanning electron microscopy (SEM) with energy dispersive spectrometry (EDS), respectively.",

author = "Yan, {Yong De} and Xu, {Yan Lu} and Zhang, {Mi Lin} and Yun Xue and Wei Han and Ying Huang and Qiong Chen and Zhang, {Zhi Jian}",

year = "2013",

doi = "10.1016/j.jnucmat.2012.09.008",

language = "英语",

volume = "433",

pages = "152--159",

journal = "Journal of Nuclear Materials",

issn = "0022-3115",

publisher = "Elsevier B.V.",

number = "1-3",

}

TY - JOUR

T1 - Electrochemical extraction of neodymium by co-reduction with aluminum in LiCl-KCl molten salt

AU - Yan, Yong De

AU - Xu, Yan Lu

AU - Zhang, Mi Lin

AU - Xue, Yun

AU - Han, Wei

AU - Huang, Ying

AU - Chen, Qiong

AU - Zhang, Zhi Jian

PY - 2013

Y1 - 2013

N2 - The electrochemical behavior of Nd(III) ions in LiCl-KCl and LiCl-KCl-AlCl3 melts on a Mo electrode at 723 K was studied by various electrochemical techniques. The results showed that Nd(III) ions are reduced to Nd(0) through two consecutive steps, and the underpotential deposition of neodymium on pre-deposited Al electrode formed two kinds of Al-Nd intermetallic compounds in LiCl-KCl-AlCl3 solutions. The electrochemical extraction of neodymium was carried out in LiCl-KCl-AlCl 3 melts on a Mo electrode at 873 K by potentiostatic and galvanostatic electrolysis. The extraction efficiency was 99.25% after potentiostatic electrolysis for 30 h. Al-Li-Nd bulk alloy was obtained by galvanostatic electrolysis. X-ray diffraction (XRD) suggested that Al 2Nd and Al3Nd phases were formed in Al-Li-Nd alloy. The microstructure and micro-zone chemical analysis of Al-Li-Nd alloy were characterized by scanning electron microscopy (SEM) with energy dispersive spectrometry (EDS), respectively.

AB - The electrochemical behavior of Nd(III) ions in LiCl-KCl and LiCl-KCl-AlCl3 melts on a Mo electrode at 723 K was studied by various electrochemical techniques. The results showed that Nd(III) ions are reduced to Nd(0) through two consecutive steps, and the underpotential deposition of neodymium on pre-deposited Al electrode formed two kinds of Al-Nd intermetallic compounds in LiCl-KCl-AlCl3 solutions. The electrochemical extraction of neodymium was carried out in LiCl-KCl-AlCl 3 melts on a Mo electrode at 873 K by potentiostatic and galvanostatic electrolysis. The extraction efficiency was 99.25% after potentiostatic electrolysis for 30 h. Al-Li-Nd bulk alloy was obtained by galvanostatic electrolysis. X-ray diffraction (XRD) suggested that Al 2Nd and Al3Nd phases were formed in Al-Li-Nd alloy. The microstructure and micro-zone chemical analysis of Al-Li-Nd alloy were characterized by scanning electron microscopy (SEM) with energy dispersive spectrometry (EDS), respectively.

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U2 - 10.1016/j.jnucmat.2012.09.008

DO - 10.1016/j.jnucmat.2012.09.008

M3 - 文章

AN - SCOPUS:84867896159

SN - 0022-3115

VL - 433

SP - 152

EP - 159

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

IS - 1-3

ER -

Electrochemical extraction of neodymium by co-reduction with aluminum in LiCl-KCl molten salt

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