AlCl3-aided extraction of praseodymium from Pr6O 11 in LiCl-KCl eutectic melts

Hao Tang; Yong De Yan; Mi Lin Zhang; Xing Li; Ying Huang; Yan Lu Xu; Yun Xue; Wei Han; Zhi Jian Zhang

doi:10.1016/j.electacta.2012.10.045

AlCl₃-aided extraction of praseodymium from Pr₆O ₁₁ in LiCl-KCl eutectic melts

Hao Tang, Yong De Yan, Mi Lin Zhang, Xing Li, Ying Huang, Yan Lu Xu, Yun Xue, Wei Han, Zhi Jian Zhang

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

65 Scopus citations

Abstract

Gibbs energy showed that AlCl₃ can chloridize Pr ₆O₁₁ and release Pr(III) ions in the LiCl-KCl-Pr ₆O₁₁-AlCl₃ melts. The co-reduction process of Al(III), Pr(III) and Li(I) ions was investigated in the LiCl-KCl-Pr ₆O₁₁-AlCl₃ melts. Three signals, corresponding to different Al-Pr intermetallic compounds, were observed by cyclic voltammetry, square wave voltammetry and open circuit chronopotentiometry. Potentiostatic and galvanostatic electrolysis were conducted to extract Pr element from LiCl-KCl eutectic melts by forming Al-Pr and Al-Li-Pr alloys, respectively. X-ray diffraction (XRD) indicated that both Al-Pr and Al-Li-Pr alloys comprised Al₂Pr phase. The composition of Al-Li-Pr alloys was analyzed by inductive coupled plasma atomic emission spectrometer (ICP-AES). The proportion of Pr element in Al-Li-Pr alloys exceeded 40 wt.% when the concentration of AlCl₃ reached 8 wt.% in the LiCl-KCl-Pr₆O₁₁(1 wt.%) melts.

Original language	English
Pages (from-to)	457-462
Number of pages	6
Journal	Electrochimica Acta
Volume	88
DOIs	https://doi.org/10.1016/j.electacta.2012.10.045
State	Published - 15 Jan 2013
Externally published	Yes

Keywords

Al-Li-Pr alloys
Electrodeposition
Extraction of Pr
Molten chlorides

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10.1016/j.electacta.2012.10.045

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@article{069b95a242b24612a1d3f5eb6dfe29d7,

title = "AlCl3-aided extraction of praseodymium from Pr6O 11 in LiCl-KCl eutectic melts",

abstract = "Gibbs energy showed that AlCl3 can chloridize Pr 6O11 and release Pr(III) ions in the LiCl-KCl-Pr 6O11-AlCl3 melts. The co-reduction process of Al(III), Pr(III) and Li(I) ions was investigated in the LiCl-KCl-Pr 6O11-AlCl3 melts. Three signals, corresponding to different Al-Pr intermetallic compounds, were observed by cyclic voltammetry, square wave voltammetry and open circuit chronopotentiometry. Potentiostatic and galvanostatic electrolysis were conducted to extract Pr element from LiCl-KCl eutectic melts by forming Al-Pr and Al-Li-Pr alloys, respectively. X-ray diffraction (XRD) indicated that both Al-Pr and Al-Li-Pr alloys comprised Al2Pr phase. The composition of Al-Li-Pr alloys was analyzed by inductive coupled plasma atomic emission spectrometer (ICP-AES). The proportion of Pr element in Al-Li-Pr alloys exceeded 40 wt.% when the concentration of AlCl3 reached 8 wt.% in the LiCl-KCl-Pr6O11(1 wt.%) melts.",

keywords = "Al-Li-Pr alloys, Electrodeposition, Extraction of Pr, Molten chlorides",

author = "Hao Tang and Yan, {Yong De} and Zhang, {Mi Lin} and Xing Li and Ying Huang and Xu, {Yan Lu} and Yun Xue and Wei Han and Zhang, {Zhi Jian}",

year = "2013",

month = jan,

day = "15",

doi = "10.1016/j.electacta.2012.10.045",

language = "英语",

volume = "88",

pages = "457--462",

journal = "Electrochimica Acta",

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publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - AlCl3-aided extraction of praseodymium from Pr6O 11 in LiCl-KCl eutectic melts

AU - Tang, Hao

AU - Yan, Yong De

AU - Zhang, Mi Lin

AU - Li, Xing

AU - Huang, Ying

AU - Xu, Yan Lu

AU - Xue, Yun

AU - Han, Wei

AU - Zhang, Zhi Jian

PY - 2013/1/15

Y1 - 2013/1/15

N2 - Gibbs energy showed that AlCl3 can chloridize Pr 6O11 and release Pr(III) ions in the LiCl-KCl-Pr 6O11-AlCl3 melts. The co-reduction process of Al(III), Pr(III) and Li(I) ions was investigated in the LiCl-KCl-Pr 6O11-AlCl3 melts. Three signals, corresponding to different Al-Pr intermetallic compounds, were observed by cyclic voltammetry, square wave voltammetry and open circuit chronopotentiometry. Potentiostatic and galvanostatic electrolysis were conducted to extract Pr element from LiCl-KCl eutectic melts by forming Al-Pr and Al-Li-Pr alloys, respectively. X-ray diffraction (XRD) indicated that both Al-Pr and Al-Li-Pr alloys comprised Al2Pr phase. The composition of Al-Li-Pr alloys was analyzed by inductive coupled plasma atomic emission spectrometer (ICP-AES). The proportion of Pr element in Al-Li-Pr alloys exceeded 40 wt.% when the concentration of AlCl3 reached 8 wt.% in the LiCl-KCl-Pr6O11(1 wt.%) melts.

AB - Gibbs energy showed that AlCl3 can chloridize Pr 6O11 and release Pr(III) ions in the LiCl-KCl-Pr 6O11-AlCl3 melts. The co-reduction process of Al(III), Pr(III) and Li(I) ions was investigated in the LiCl-KCl-Pr 6O11-AlCl3 melts. Three signals, corresponding to different Al-Pr intermetallic compounds, were observed by cyclic voltammetry, square wave voltammetry and open circuit chronopotentiometry. Potentiostatic and galvanostatic electrolysis were conducted to extract Pr element from LiCl-KCl eutectic melts by forming Al-Pr and Al-Li-Pr alloys, respectively. X-ray diffraction (XRD) indicated that both Al-Pr and Al-Li-Pr alloys comprised Al2Pr phase. The composition of Al-Li-Pr alloys was analyzed by inductive coupled plasma atomic emission spectrometer (ICP-AES). The proportion of Pr element in Al-Li-Pr alloys exceeded 40 wt.% when the concentration of AlCl3 reached 8 wt.% in the LiCl-KCl-Pr6O11(1 wt.%) melts.

KW - Al-Li-Pr alloys

KW - Electrodeposition

KW - Extraction of Pr

KW - Molten chlorides

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U2 - 10.1016/j.electacta.2012.10.045

DO - 10.1016/j.electacta.2012.10.045

M3 - 文章

AN - SCOPUS:84870675350

SN - 0013-4686

VL - 88

SP - 457

EP - 462

JO - Electrochimica Acta

JF - Electrochimica Acta

ER -

AlCl₃-aided extraction of praseodymium from Pr₆O ₁₁ in LiCl-KCl eutectic melts

Abstract

Keywords

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