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Browsing by UP Author "Sandenbergh, Roelf"
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Schoeman, Liezl; Nsiengani, Emmanuel Nsanda; Sole, K.C. (Kathryn); Sandenbergh, Roelf (Elsevier, 2020-06)Impurities present in the sulfate electrolyte during nickel electrodeposition influence the electrowinning process and morphology of deposited nickel metal in various ways. The presence of aluminium can be either detrimental ...
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Wei, Y.; Sandenbergh, Roelf (Elsevier, 2007-03)The Rosh Pinah orebody is a complex lead–zinc sulphide system with pyrite gangue and minor amounts of copper. Laboratory scale milling and flotation testing of ore samples taken from this operation was performed. Different ...
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Van Schoor, Jan Cornelius Rudolph; Sandenbergh, Roelf (Southern African Institute of Mining and Metallurgy, 2012-03)In this study the applicability of a batch press to predict the energy consumption and particle size distributions for medium-pressure roller presses was investigated. The relationships between energy consumption, feed ...
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Claassen, Johann Ockert; Sandenbergh, Roelf (Elsevier, 2007-05)The hydrolysis of ferric iron at elevated temperatures and pH values between 1.5 and 3.5 was characterized by determining the stability regions for schwertmannite, 6-line ferrihydrite and 2-line ferrihydrite, and linking ...
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Tichapondwa, Shepherd Masimba; Focke, Walter Wilhelm; Sandenbergh, Roelf; Fabbro, O.D.; Muller, E. (Taylor & Francis, 2014)Silicon powder reacts with water, liberating hydrogen gas, which poses an explosion risk. Adding metal ions with a high reduction potential suppresses hydrogen generation. Copper (II) ions are particularly effective in ...
Now showing items 1-5 of 5