Electrolytic reduction of V3S4 in molten CaCl2

Takahiro Matsuzaki, Shungo Natsui, Tatsuya Kikuchi, Ryosuke O. Suzuki

研究成果: Article査読

13 被引用数 (Scopus)

抄録

Metallic vanadium was successfully produced starting from vanadium sulfide by applying electrolysis in molten CaCl2. Vanadium sulfide filled in a cathodic Ti basket and a graphite anode were immersed in the melt of CaCl2-CaS at 1173 K in Ar, and the electrolysis was conducted at a cell voltage of 3.0 V. Sulfide electrolysis did not form carbon deposit and was free from carbon contamination, while carbon powder was formed on the cathode in the oxide electrolysis using the melt of CaCl2-CaO. When the CaS content in the molten CaCl2 increased, electrolysis current increased resulting in fast smelting while the oxygen and sulfur contents in metallic vanadium increased. Oxygen and sulfur contents as low as 3390 ppm and 210 ppm, respectively, were achieved by supplying about four times more electrical charge than stoichiometry.

本文言語English
ページ(範囲)371-376
ページ数6
ジャーナルMaterials Transactions
58
3
DOI
出版ステータスPublished - 2017
外部発表はい

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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