A study of the behaviour of free gold in flash flotation and gravity recovery
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Gravity and flash flotation are used to recover free gold within the milling circuit, however, this arrangement is poorly understood and consequently, it is difficult to predict circuit performance. Identifying the impact that changes in mineralogy, reagent use, operational factors, and physical variables (size, shape, surface area and elemental composition) will have upon the behaviour of free gold particles will lead to an improved understanding of the behaviour of free gold within the milling circuit.
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McGrath, Teresa; Eksteen, Jacques; Heath, J. (2015)A reliable laboratory method to characterize the response of free gold particles to flash flotation conditions has been developed. The test has been performed on free milling gold ores as well as synthetic ores, using ...
Oraby, E.; Eksteen, Jacques (2015)© 2015 Elsevier B.V. Abstract In the cyanidation of copper-gold ores, the presence of copper minerals can lead to soluble gold losses, the production of weak acid dissociable (WAD) cyanide, as well as a number of operational ...
Gold and copper leaching from gold-copper ores and concentrates using a synergistic lixiviant mixture of glycine and cyanideOraby, E.; Eksteen, Jacques; Tanda, B. (2017)© 2017 Elsevier B.V.The presence of cyanide soluble copper in the cyanidation of gold-copper ores and concentrates significantly increases the cyanide consumption in order to achieve sufficient gold recovery. In addition, ...