Electrolytic reduction of V3S4 in molten CaCl2

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

Electrolytic reduction of V3S4 in molten CaCl2

Matsuzaki, Takahiro; Natsui, Shungo; Kikuchi, Tatsuya et al.

MATERIALS TRANSACTIONS, 2017, 58(3), 371-376

Permalink : https://hdl.handle.net/2115/73963

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アクセス権	open access
URI	https://hdl.handle.net/2115/73963
タイトル	Electrolytic reduction of V3S4 in molten CaCl2
著者	Matsuzaki, Takahiro ; Natsui, Shungo ; Kikuchi, Tatsuya ; Suzuki, Ryosuke O
著者名 Matsuzaki, Takahiro
e-Rad_Researcher 70706879 著者名 Natsui, Shungo
e-Rad_Researcher 60374584 著者名 Kikuchi, Tatsuya
e-Rad_Researcher 80179275 著者名 Suzuki, Ryosuke O
言語	英語
キーワード	molten salt electrolysis
	vanadium sulfide
	metallic vanadium
	calcium chloride
発行日	2017-03-01
出版者	日本金属学会
収録物名	MATERIALS TRANSACTIONS
巻(号)	58(3)
ページ	371-376
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.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
PISSN	1345-9678
EISSN	1347-5320
NCID	AA1151294X
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.2320/matertrans.M2016305