The effect of dissolved manganese on anode activity in electrowinning

Lauri Pajunen, Jari Aromaa, Olof Forsén

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

    15 Citations (Scopus)


    DSA-anodes are widely used in metal electrowinning. In zinc electrowinning the electrolyte solution contains manganese ions, and the deposition of manganese dioxide happens on the anode. This manganese dioxide layer cannot be removed without losing the active coating of the DSA-anode. The same problem can be found with hybrid anodes. In hybrid anodes mixed metal oxide coated titanium mesh is attached to a lead base material. In this study, the effect of dissolved manganese on anode behaviour is studied with three different anodes. These anodes are lead anode with 0.6% silver, hybrid anode and DSA-mesh. Methods of study include polarization, galvanostatic and potential mapping experiments.
    Original languageEnglish
    Title of host publicationHydrometallurgy 2003 - Fifth international Conference in Honor of Professor Ian Ritchie, Vancouver, Canada
    EditorsCourtney Young, Akram Alfantazi, Corby Anderson, Amy James, David Dreisinger, Bryn Harris
    Place of PublicationWarrendale, Pennsylvania
    PublisherThe minerals, metals & materials society (TMS)
    Publication statusPublished - 2003
    MoE publication typeA4 Article in a conference publication


    • anode
    • electrowinning
    • manganese deposition
    • oxygen evolution
    • zinc

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