Leaching of a zinc ore and concentrate using the Geocoat™ technology
Journal Article
2011
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Minerals Engineering
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Elsevier
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University of Cape Town
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Abstract
In this study, the Geocoat™ technology was used for the extraction of zinc from a mineral concentrate obtained from the Kooshk mine (Yazd, Iran) by a culture dominated by the mesophilic bacterium Acidithiobacillusferrooxidans in a packed column bioreactor. A low grade sphalerite ore was used as support for the concentrate coating. During the 100 days of leaching pH, Fe3+, Fetotal, microbial population density and zinc extraction were measured. The final zinc extraction from concentrate and low grade support was 97% and 78%, respectively, and it was found that leaching from the support does not proceed significantly before leaching from the coating is completed.
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Reference:
Soleimani, M., Petersen, J., Roostaazad, R., Hosseini, S., Mousavi, S. M., Najafi, A., & Vasiri, A. K. (2011). Leaching of a zinc ore and concentrate using the Geocoat™ technology. Minerals Engineering, 24(1), 64-69.