Electrorefining of nickel from nickel-chromium alloy in molten LiCl-KCl

doi:10.1007/s41365-019-0656-5

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Electrorefining of nickel from nickel-chromium alloy in molten LiCl-KCl
	Zhu, TJ; Huang, W; Li, QN
刊名	NUCLEAR SCIENCE AND TECHNIQUES
	2019
卷号	30 期号:9 页码:-
关键词	LIF-NAF-KF ELECTROCHEMICAL-BEHAVIOR DIFFUSION-COEFFICIENT SEPARATION ELECTRODEPOSITION SILICON OXIDE ELECTROLYSIS RECOVERY DENSITY
ISSN号	1001-8042
DOI	10.1007/s41365-019-0656-5
文献子类	期刊论文
英文摘要	Electrorefining of nickel in LiCl-KCl melt was investigated using electrochemical techniques. Nickel products after electrorefining were characterized by X-ray diffraction, X-ray fluorescence, and scanning electron microscopy. Both cyclic voltammetry and square wave voltammetry results suggested that Ni2+ was directly reduced to Ni metal in LiCl-KCl. Based on a preliminary study on the electrochemical behavior of nickel and chromium, electrorefining was carried out under constant potential, whereupon deposits were formed on the cathode. The purity of nickel increased from 72.62% in the original alloy to 99.83% in cathodic deposits, as determined by inductively coupled plasma atomic emission spectroscopy analysis. Almost all the nickel in the alloy could be recovered during the electrochemical process with >90% current efficiency. A lower concentration of NiCl2 in LiCl-KCl was found to be favorable for nickel electrorefining, as increased NiCl2 concentration caused severe corrosion of the nickel anode at the gas-liquid interface due to the accumulation of Cl-2 gas.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/32043]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	Chinese Acad Sci, Shanghai Inst Appl Phys, Dept Radiochem, Shanghai 201800, Peoples R China
推荐引用方式 GB/T 7714	Zhu, TJ,Huang, W,Li, QN. Electrorefining of nickel from nickel-chromium alloy in molten LiCl-KCl[J]. NUCLEAR SCIENCE AND TECHNIQUES,2019,30(9):-.
APA	Zhu, TJ,Huang, W,&Li, QN.(2019).Electrorefining of nickel from nickel-chromium alloy in molten LiCl-KCl.NUCLEAR SCIENCE AND TECHNIQUES,30(9),-.
MLA	Zhu, TJ,et al."Electrorefining of nickel from nickel-chromium alloy in molten LiCl-KCl".NUCLEAR SCIENCE AND TECHNIQUES 30.9(2019):-.