Browsing Theses and Dissertations (University of Pretoria) by Supervisor "Vermaak, M.K.G. (Matthys Karel Gerhardus)"
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Browsing Theses and Dissertations (University of Pretoria) by Supervisor "Vermaak, M.K.G. (Matthys Karel Gerhardus)"
Now showing items 1-8 of 8
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(University of Pretoria, 2008-07-07)Extensive research has been performed on the interaction of dithiocarbonates (xanthate) with a wide variety of substrates. This study the focuses on the interaction of trithiocarbonates (TTC) with pyrite and copper. The ...
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(University of Pretoria, 2005)The effects SIBX/C10 (or C12) TTC mixtures on flotation response of pyrite, gold and uranium from Anglogold Ashanti’s No 2 Gold Plant feed were investigated. In batch flotation tests where TTC was dosed from aged 1% wt ...
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(University of Pretoria, 2008-09-09)This project investigates the optimisation of platinum-group metals recovery at the Mimosa Mine in Zimbabwe. The first part of this research investigates how collector performance can be improved by using collector ...
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(University of Pretoria, 2010-09-17)Previous research indicates compositional variation of pentlandite [(Fe,Ni)9S8] and the effect this variation may have on the electrochemical behaviour of pentlandite is poorly understood. Pentlandite is the primary source ...
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(University of Pretoria, 2010-09-13)Extensive research has shown that electrochemistry is one of the factors that govern the flotation of sulfide minerals. Flotation is often adversely affected by uncontrolled oxidation, which is also an electrochemical ...
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Investigation into froth flotation for the beneficiation of printed circuit board comminution fines (University of Pretoria, 2010-06-14)In resource recovery from end-of-life printed circuit board (PCB), the physical processing route is considered most environmentally friendly. The −75 µm fraction generated during the comminution assays well above many ...
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(University of Pretoria, 2006)The aim of this study was to arrive at a fundamental understanding of kimberlite weathering and of factors which affect the rate and extent of weathering. Weathering was evaluated by measuring the change in size distribution ...
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(University of Pretoria, 2015)In this study, a collector combination between xanthate and a fatty acid collector (Betacol 364) is tested on an ore containing chalcopyrite, pentlandite and pyrrhotite. An increase in the rate of pentlandite and pyrrhotite ...
Now showing items 1-8 of 8