Browsing by Author "Norman, Philippa Fernandes"

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    An Investigation into the bacterial leaching of a gold-bearing pyrite/arsenopyrite ore
    (1986) Norman, Philippa Fernandes; Rawlings , Douglas E; Woods, David R
    The main aim of this study was to develop an economically viable bacterial leaching process for a gold-containing pyrite/arsenopyrite ore. The effect of various parameters on, and the mechanism of, bacterial leaching were investigated. Initially milled run-of-mine ore was examined. Batch tests and a continuous bacterial leach were carried out. Bacterial leaching was successful and 91-93% gold dissolution was attained in four days. The process was not economically feasible when compared to the standard flotation-roasting process.