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Calciothermic Reduction of TiCl4 Gas during the Electrolysis of CaCl2 Melt

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Title: Calciothermic Reduction of TiCl4 Gas during the Electrolysis of CaCl2 Melt
Authors: Suzuki, Ryosuke O. Browse this author →KAKEN DB
Naito, Takayuki Browse this author
Issue Date: 2009
Publisher: The Electrochemical Society
Journal Title: ECS Transactions
Volume: 16
Issue: 49
Start Page: 265
End Page: 270
Publisher DOI: 10.1149/1.3159331
Abstract: The calciothermic reduction of TiCl4 gas was studied firstly by using Ca-CaCl2 melt, to whose surface the gas was blown. The fine Ti particles settled down in the crucible, when the concentration of dissolved Ca was > 2 mol% at 1173 K. When < 2mol%Ca, a part of TiCl4 gas was dissolved probably as TiCl3 or TiCl2 into the CaCl2 melt, and it precipitated as the lower Ti oxides. When TiCl4 gas was blown to the molten CaCl2, which was electrochemically decomposed into Cl2 gas at the carbon anode and Ca at the Ti cathode, TiCl4 gas was reduced to the dendritic Ti on the cathode surface. Because the electrolyzed Ca reacted preferentially with the oxide crucibles, most of the oxygen ions combined with Ti(II) and Ti(III), and they formed TiO and Ti2O3.
Rights: © The Electrochemical Society, Inc. 2009. 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. 2009 volume 16, issue 49, 265-270.
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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