Study on the electrodeposition of tungsten from LiCl-NaF-Na2WO4 molten salts

Abstract

The processes of electrochem. reduction of tungstate in LiCl-NaF (8O-20 mol%) at 680?by use of cyclic voltammetry has been studied. The cathodic products obtained by potentiostatic electrolysis were examined by x-ray diffraction. The results indicate that the tungstate is reduced in two steps, undergoes a two electron reduction to W(IV) followed by a four electron reduction to W(0).

Key words: SODIUM COMPOUNDS, X-RAY DIFFRACTION ANALYSIS, TUNGSTEN, ELECTRO-DEPOSITION, FUSED SALTS, ELECTROCHEMICAL REACTION, SODIUM FLUORIDE, TUNGSTATE, LITHIUM HYDRIDE, CYCLOVOLTAMGRAPH

CLC Number:

O646

Cite this article

WU ZHONGDA. Study on the electrodeposition of tungsten from LiCl-NaF-Na2WO4 molten salts[J]. Acta Chimica Sinica, 1990, 48(9): 894-897.

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LiCl-NaF-Na2WO4熔盐体系中电沉积钨的研究