• Electrowinning of cerium group metals from fused chloride bath

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    • Keywords


      Electrowinning; fused chloride; cerium; lanthanum

    • Abstract


      Cerium group metals, namely, misch metal, lanthanum and cerium have been electrowon from their vacuum-dehydrated chlorides in fused sodium chloride-potassium chloride and lithium chloride-potassium chloride solvent. Temperature, cathode current density and composition of bath were optimised for high current efficiency and metal yield. In the case of lanthanum, current efficiency of 88% was achieved. The metals were free from inclusions and voids and analysed 99%+. The major non-rare earth metallic impurities were Fe, Mg and Al. The total gaseous impurities for lanthanum and misch metal were not more than 0·017%.

    • Author Affiliations


      Sohan Singh1 A L Pappachan1

      1. Metallurgy Division, Bhabha Atomic Research Centre, Trombay, Bombay - 400 085, India
    • Dates

  • Bulletin of Materials Science | News

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      Posted on July 25, 2019

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