Electrolytic reduction of V₃S₄ in molten CaCl₂

• Matsuzaki Takahiro

  Faculty of Engineering, Hokkaido University

• Natsui Shungo

  Faculty of Engineering, Hokkaido University

• Kikuchi Tatsuya

  Faculty of Engineering, Hokkaido University

• Suzuki Ryosuke O.

  Faculty of Engineering, Hokkaido University

書誌事項

タイトル別名

• Electrolytic reduction of V₃S₄ in molten CaCl₂

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.

収録刊行物

• MATERIALS TRANSACTIONS

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

  公益社団法人 日本金属学会

キーワード

• molten salt electrolysis
• vanadium sulfide
• metallic vanadium
• calcium chloride

詳細情報

• CRID: 1390282679230780032
• NII論文ID: 130005397742
• NII書誌ID: AA1151294X
• DOI: 10.2320/matertrans.m2016305
• ISSN: 13475320
• ISSN: 13459678
• HANDLE: 2115/73963
• NDL書誌ID: 028017372
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I028017372
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/58/3/58_M2016305/_pdf
• 本文言語コード: en
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