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Direct reduction of vanadium oxide in molten CaCl2

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Title: Direct reduction of vanadium oxide in molten CaCl2
Authors: Suzuki, Ryosuke O. Browse this author →KAKEN DB
Ishikawa, Hiroyuki Browse this author
Keywords: Calciothermic Reduction
Vanadium Oxide
Molten Salt Electrolysis
Deoxidation
Issue Date: 2008
Publisher: Maney Publishing
Journal Title: Mineral Processing and Extractive Metallurgy
Volume: 117
Issue: 2
Start Page: 108
End Page: 112
Publisher DOI: 10.1179/174328508X290894
Abstract: A combined process of electrolysis of CaO in the molten CaCl2 and of calciothermic reduction, so-called OS process, was applied to prepare metallic vanadium directly from V2O3. The fine metallic powder containing 1860 mass ppm oxygen was obtained using 0.5mol%CaO-CaCl2 melt for 10.8 ks at 1173 K. The oxygen level did not decrease further even when twice electricity was applied. Because the metallic vanadium could be electrochemically deoxidized to the level of 10 ppm oxygen from 1.48 %, the large amount of by-product, CaO, due to reduction and the large surface area of the fine particles are the reasons of high oxygen content in the reduced powder.
Type: article (author version)
URI: http://hdl.handle.net/2115/50036
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)

Submitter: 鈴木 亮輔

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