Hydrometallurgische Recyclingverfahren von Alkali-Mangan-Zellen

Translated title of the contribution: Hydrometallurgical recycling process of alkali-manganese cells

Norbert Schmidbauer

Research output: ThesisMaster's Thesis


Batteries play an important role in our daily lives, the most commonly used batteries being alkaline manganese cells. These can be used in e.g. remote controls, toys, flashlights, etc. Apart from the steel casing, alkaline manganese cells contain relatively large quantities of black mass, mainly consisting of zinc and manganese. Currently, pyrometallurgical procedures are primarily used to recover these valuable materials, but hydrometallurgical procedures also offer promising opportunities. The first part of this master thesis provides an overview of the pyrometallurgical and hydrometallurgical methods for the recycling of black mass from alkaline manganese cells. On the one hand, procedures are described that are already used extensively, on the other hand, innovative procedures are presented that were previously only described in literature or patents. Furthermore, current areas of application of various zinc and manganese compounds are described. In the second part of the master thesis, a black mass from the treatment of alkaline manganese batteries was subjected to hydrometallurgical treatment with the aim of regaining zinc and manganese. Various acids for leaching zinc and manganese were applied in order to optimize the process. Other significant influencing factors and conditions such as the solid-liquid ratio, the concentration of acids and the temperature were also varied during several test series. Precipitation tests for selective recovery of zinc and manganese were performed on the obtained leachable solution. The experiments showed that the hydrometallurgical treatment of the black mass is well suited for recovering zinc and manganese.
Translated title of the contributionHydrometallurgical recycling process of alkali-manganese cells
Original languageGerman
Awarding Institution
  • Montanuniversität
  • Tischberger-Aldrian, Alexia, Co-Supervisor (internal)
  • Pomberger, Roland, Supervisor (internal)
Award date23 Mar 2018
Publication statusPublished - 2018

Bibliographical note

embargoed until 18-01-2023


  • Alkali manganese cells
  • black mass
  • hydrometallurgical processes
  • recycling
  • spent batteries

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