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Minerals 2018, 8(7), 295; https://doi.org/10.3390/min8070295

Reprocessing of a Southern Chilean Zn Tailing by Flotation—A Case Study

1
Helmholtz Institute Freiberg for Resource Technology, Helmholtz-Zentrum Dresden-Rossendorf, 09599 Freiberg, Germany
2
Department of Mineralogy of the Technische Universität Bergakademie Freiberg, 09599 Freiberg, Germany
These authors contributed equally to the study.
*
Authors to whom correspondence should be addressed.
Received: 1 June 2018 / Revised: 6 July 2018 / Accepted: 9 July 2018 / Published: 11 July 2018
(This article belongs to the Special Issue Geometallurgy)
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Abstract

The reprocessing of tailings can have economic and environmental benefits compared to the processing of primary ore deposits. In this paper we present the characterization of a tailings dam in southern Chile by means of mineralogical and geochemical investigations, focusing on sphalerite and trace elements with the aim to investigate a potential reprocessing. The assessment is followed by a flotation study, focusing on the recovery of sphalerite with a high selectivity towards sulfidic and non-sulfidic gangue minerals. An in-depth analysis of a selected test based on mineral liberation analysis data is used to refine the liberation, concentration and flotation weighting function for future investigations. View Full-Text
Keywords: geometallurgy; flotation; sphalerite; tailings; reprocessing geometallurgy; flotation; sphalerite; tailings; reprocessing
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Babel, B.; Penz, M.; Schach, E.; Boehme, S.; Rudolph, M. Reprocessing of a Southern Chilean Zn Tailing by Flotation—A Case Study. Minerals 2018, 8, 295.

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