溶融塩化カルシウム浴を用いた酸化バナジウムの直接還元  [in Japanese] Direct Reduction of Vanadium Oxide in the Molten Calcium Chloride  [in Japanese]

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Abstract

  A new process is proposed to reduce V<sub>2</sub>O<sub>5</sub> by using calcium in molten CaCl<sub>2</sub> for vanadium production. It consists of the calcium reduction in molten CaCl<sub>2</sub> and the electrochemical reaction for the recovery of Ca from CaO in the same bath. V<sub>2</sub>O<sub>5</sub> pellet was placed on cathode in order to react with Ca electrochemically generated near the cathode. V<sub>2</sub>O<sub>5</sub> exists as liquid at the experimental temperature (1123 K), because of the melting point of 963 K for V<sub>2</sub>O<sub>5</sub>. At the initial stage of the reduction, liquid sample is reduced to solid CaV<sub>2</sub>O<sub>4</sub>. As the supplied quantity of electricity increased, the oxygen concentration in the vanadium samples decreased exponentially. Vanadium containing only 1800 ppm oxygen was obtained after the electrolysis for 34.4 ks.<br>

Journal

  • Journal of the Japan Institute of Metals and Materials

    Journal of the Japan Institute of Metals and Materials 72(3), 181-187, 2008-03-01

    The Japan Institute of Metals and Materials

References:  12

Codes

  • NII Article ID (NAID)
    10021149851
  • NII NACSIS-CAT ID (NCID)
    AN00062446
  • Text Lang
    JPN
  • Article Type
    ART
  • ISSN
    00214876
  • NDL Article ID
    9419630
  • NDL Source Classification
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL Call No.
    Z17-314
  • Data Source
    CJP  NDL  IR  J-STAGE 
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