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Electrolytic reduction of V3S4 in molten CaCl2
| Title: | Electrolytic reduction of V3S4 in molten CaCl2 |
| Authors: | Matsuzaki, Takahiro Browse this author | | Natsui, Shungo Browse this author →KAKEN DB | | Kikuchi, Tatsuya Browse this author →KAKEN DB | | Suzuki, Ryosuke O Browse this author →KAKEN DB |
| Keywords: | molten salt electrolysis | | vanadium sulfide | | metallic vanadium | | calcium chloride |
| Issue Date: | 1-Mar-2017 |
| Publisher: | 日本金属学会 |
| Journal Title: | MATERIALS TRANSACTIONS |
| Volume: | 58 |
| Issue: | 3 |
| Start Page: | 371 |
| End Page: | 376 |
| Publisher DOI: | 10.2320/matertrans.M2016305 |
| Abstract: | 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. |
| Type: | article |
| URI: | http://hdl.handle.net/2115/73963 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 鈴木 亮輔
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