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Minerals 2018, 8(7), 295;

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

Helmholtz Institute Freiberg for Resource Technology, Helmholtz-Zentrum Dresden-Rossendorf, 09599 Freiberg, Germany
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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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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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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