An Investigation into the bacterial leaching of a gold-bearing pyrite/arsenopyrite ore

Master Thesis

1986

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http://hdl.handle.net/11427/21903
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thesis_sci_1986_norman_philippa_fernandes.pdf (2.43 MB)
Authors
Norman, Philippa Fernandes
Supervisors
Rawlings , Douglas E
Woods, David R
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University of Cape Town

Department
Department of Molecular and Cell Biology
Faculty
Faculty of Science
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Abstract
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.
Description

Bibliography : pages 157-173.

Keywords
Microbiology

Reference:

Norman, P. 1986. An Investigation into the bacterial leaching of a gold-bearing pyrite/arsenopyrite ore. University of Cape Town.

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