Liquid zinc assisted electro-extraction of molybdenum

Cheng Lv, Handong Jiao, Shaolong Li, Yusi Che, Shengxi Li, Chen Liu, Jilin He, Jianxun Song*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Improvements of the direct electro-desulfurization of molybdenum disulfide in NaCl-KCl eutectic molten salt by employing a liquid zinc electrode was studied in this work. According to the previous studies, one of the rate controlling step of the MoS2 desulfurization process is the sulfur ions’ diffusion through solid MoS2 pellet, and a decreasing reaction rate is considered to result from the poor conductivity between the loosely connected partial reduced molybdenum particles. Based on these facts, liquid zinc electrode, along with a graphite crucible as the container, was employed to collect the reduced molybdenum particles as long as keep providing a fresh three-phase interline (3PI) as the current collector. Transient electrochemical technologies were introduced to study the electrochemical behavior of molybdenum ions with and without the appearance of zinc ions. Zn-Mo alloy was obtained through the potentiostatic electrolysis process, and molybdenum powders mainly sank into the bottom of liquid zinc due to the gravity. Metallic molybdenum shall be obtained by distilling the electrolysis product.

Original languageEnglish
Article number119651
JournalSeparation and Purification Technology
Volume279
DOIs
Publication statusPublished - 15 Dec 2021

Keywords

  • Electrolysis
  • Liquid electrode
  • Molten salt
  • Molybdenum extraction

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