Abstract

In the treatment of sulphide ores, the reactions occurring in several processes like wet grinding, flotation, collectorless flotation, leaching/bioleaching and in adsorption mechanisms, for example the interaction of thiol collectors with oxidation-reduction reactions, play a dominant role. To optimize the conditions for metallurgical yield (grinding, flotation, leaching) or to combat a problem (acid mine drainage) understanding of the mechanisms involved in the process is needed. In broad terms this is mineral/solution interface chemistry. These mechanisms are discussed in this paper with emphasis on galvanic interactions.

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