Bacterial Leaching of Manganese Ores

  • Henry L. Ehrlich
Conference paper

Abstract

The most important ores of manganese are oxides, although they may also include manganous carbonate (rhodochrosite) and silicate (rhodonite). Some of the oxide minerals of manganese are shown in Table 1. Since the manganese with oxidation states of +3 and +4 in these minerals is insoluble, its hydrometallurgical extraction requires its reduction to the divalent state. Industrially, this can generally be achieved by roasting with a suitable reductant such as gas, oil, or solid fuel, CO and H2 being other examples of effective reducing agents (Sully, 1955). It can also be achieved by treatment with strong reductants such as SO2 or acid ferrous sulfate which often involves a heating step (Henn et al., 1968).

Keywords

Manganese Oxide Marine Bacterium Rensselaer Polytechnic Institute Enterobacter Aerogenes Manganese Nodule 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© Australian Academy of Science 1980

Authors and Affiliations

  • Henry L. Ehrlich
    • 1
  1. 1.Department of BiologyRensselaer Polytechnic InstituteTroyUSA

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