Direct reduction of vanadium oxide in molten CaCl2

被引：0
作者：
Suzuki, Ryosuke O. [1 ]
Ishikawa, Hiroyuki [1 ]
机构：
[1] Hokkaido Univ, Dept Mat Sci, Kita Ku, N13W8, Sapporo, Hokkaido 0608628, Japan
来源：
SOHN INTERNATIONAL SYMPOSIUM ADVANCED PROCESSING OF METALS AND MATERIALS, VOL 3: THERMO AND PHYSICOCHEMICAL PRINCIPLES: SPECIAL MATERIALS AND AQUEOUS AND ELECTROCHEMICAL PROCESSING | 2006年
关键词：
calciothermic reduction; vanadium oxide; molten salt electrolysis; deoxidation;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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.
引用
收藏
页码：597 / +
页数：4
相关论文
共 50 条
  • [31] Electrolytic Reduction of ZnO in the CaCl2-NaCl Molten Salt
    Ji, Nan
    Peng, Hao
    JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2023, 170 (06)
  • [32] An Electro-Assisted Powder Metallurgical Route for the Preparation of Porous Ti and NiTi in Molten CaCl2
    Ma, Xue
    Xie, Hongwei
    Qu, Jiakang
    Song, Qiushi
    Ning, Zhiqiang
    Zhao, Haijia
    Yin, Huayi
    METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 2019, 50 (02): : 940 - 949
  • [33] Investigation on direct electrolytic reduction of the CaTiO3 compounds in molten CaCl2-NaCl for the production of Ti
    Lang, X. C.
    Xie, H. W.
    Zou, X. Y.
    Kim, P. H.
    Zhai, Y. C.
    MATERIALS AND DESIGN, PTS 1-3, 2011, 284-286 : 2082 - 2085
  • [34] Synthesis of Ti-6Al-4V Alloy by the Electrolysis of Molten CaCl2 + CaO
    Sakai, Hiroshi
    Oka, Yuichi
    Suzuki, Ryosuke O.
    JOURNAL OF THE JAPAN INSTITUTE OF METALS, 2008, 72 (12) : 921 - 927
  • [35] Characterization of the Cathodic Thermal Behavior of Molten CaCl2 and Its Hygroscopic Chloride Mixture During Electrolysis
    Shibuya, Ryota
    Natsui, Shungo
    Nogami, Hiroshi
    Kikuchi, Tatsuya
    Suzuki, Ryosuke O.
    JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2020, 167 (10)
  • [36] Synthesis of micro-FeTi powders by direct electrochemical reduction of ilmenite in CaCl2-NaCl molten salt
    Zhongren Zhou
    Yixin Hua
    Cunying Xu
    Jian Li
    Yan Li
    Qibo Zhang
    Yadong Zhang
    Wenhao Kuang
    Ionics, 2017, 23 : 213 - 221
  • [37] Synthesis of micro-FeTi powders by direct electrochemical reduction of ilmenite in CaCl2-NaCl molten salt
    Zhou, Zhongren
    Hua, Yixin
    Xu, Cunying
    Li, Jian
    Li, Yan
    Zhang, Qibo
    Zhang, Yadong
    Kuang, Wenhao
    IONICS, 2017, 23 (01) : 213 - 221
  • [38] Towards a sustainable technology for production of extra-pure Ti metal: Electrolysis of sulfurized Ti(C,N) in molten CaCl2
    Ahmadi, Eltefat
    Suzuki, Ryosuke O.
    Kikuchi, Tatsuya
    Kaneko, Takumi
    Yashima, Yuta
    INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS, 2020, 27 (12) : 1635 - 1643
  • [39] Electrochemical Preparation of Ti2CrV Alloy in CaCl2 Melt
    Khan, Mohd. Sufiyan
    Mukherjee, Anwesha
    Ghosh, Pabitra
    Kumaresan, R.
    JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2024, 171 (07)
  • [40] Investigation of electrochemical reduction of GeO2 to Ge in molten CaCl2- NaCl
    Rong, Liangbin
    He, Rui
    Wang, Zhiyong
    Peng, Junjun
    Jin, Xianbo
    Chen, George Z.
    ELECTROCHIMICA ACTA, 2014, 147 : 352 - 359
12345