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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
Issue Date: 2007
Publisher: The Electrochemical Society
Journal Title: ECS Transactions
Volume: 3
Issue: 35
Start Page: 347
End Page: 356
Publisher DOI: 10.1149/1.2798678
Abstract: A process consisted of CaO electrolysis and calciothermic reduction in the molten CaCl2 was applied to prepare metallic vanadium directly from V2O3. The fine metallic powder containing 1860 mass ppm oxygen was successfully obtained using 0.5mol%CaO-CaCl2 melt for 10.8 ks at 1173 K. The oxygen level from the oxide fitted with the demand for hydrogen storage application, but it remained nearly constant even when twice the electricity was supplied. The commercial grade powder containing 1.48% oxygen was, however, well deoxidized to 10 ppm. The large amount of by-product, CaO, due to reduction and the large surface area of the fine particles are the possible reasons of high oxygen content in the reduced powder.
Rights: © The Electrochemical Society, Inc. 2007. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS). The archival version of this work was published in ECS Trans. 2007 volume 3, issue 35, 347-356.
Type: article
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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