2014-Sustainable Industrial Processing Summit
SIPS 2014 Volume 3: Non-ferrous & Iron_Steel

Editors:Kongoli F
Publisher:Flogen Star OUTREACH
Publication Year:2014
Pages:522 pages
ISBN:978-1-987820-05-8
ISSN:2291-1227 (Metals and Materials Processing in a Clean Environment Series)
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    LEAD ELECTRORECOVERY FROM OXYCHLORIDE MELTS

    Yuliya Khalimullina1; Pavel Pershin1; Pavel Arkhipov1; Yuriy Zaikov1;
    1INSTITUTE OF HIGH TEMPERATURE ELECTROCHEMISTRY OF THE URAL BRANCH OF THE RUSSIAN ACADEMY OF SCIENCES, Ekaterinburg, Russian Federation;
    Type of Paper: Regular
    Id Paper: 281
    Topic: 3

    Abstract:

    The cathode process, which takes place at the indifferent substrate in molten LiCl-KCl-PbCl2 (2,10 mol. %) and LiCl-KCl-PbCl2-PbO (0,54 - 1,78 mol. %) in the temperature range of 723 - 823 K, was studied using voltammetry technique.
    The experiments were carried in the three-electrode electrochemical cell. The molybdenum core served as the working electrode and liquid lead was used as the counter and reference electrodes.
    The cathode voltammograms demonstrate only one current peak indicating lead recovery in the LiCl-KCl-PbCl2 melt. The PbO addition to the chloride melt leads to appearance of one more current peak.
    The proposed mechanism of cathode process in the LiCl-KCl-PbCl2-PbO melt suggests that the consistent reduction of Pb2+ and complex oxide lead-containing ions proceeds at different potentials. The analysis of i-V1/2 showed that the cathode process is controlled by diffusion.

    Keywords:

    lead, melt, oxide, refinement, voltammetry

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    Cite this article as:

    Khalimullina Y, Pershin P, Arkhipov P, Zaikov Y. LEAD ELECTRORECOVERY FROM OXYCHLORIDE MELTS. In: Kongoli F, editors. Sustainable Industrial Processing Summit SIPS 2014 Volume 3: Non-ferrous & Iron_Steel. Volume 3. Montreal(Canada): FLOGEN Star Outreach. 2014. p. 119-126.