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Showing 1 to 11 of 11 for “"Platinum Group Mineral"”.
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Relationship between froth behaviour and the properties of particles
… affect the performance of the froth phase. In platinum group mineral (PGM) flotation, gangue minerals are known to have a stabilizing effect on the froth phase; in this project, their hydrophobicity was changed by the addition of depressant and the performance of the froth phase was measured in …
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The thermochemical behaviour of thiol collectors and collector mixtures with sulphide minerals
… to dominate the base metal sulphide (BMS) and platinum group mineral (PGM) flotation industry. The behaviour of thiol collectors and collector mixtures with sulphide mineral surfaces has been extensively studied using different techniques such as XPS, ToF-SIMS, UV-VIS, etc. However, most of …
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An electrochemical investigation on the mechanisms of interfacial interactions of a xanthate collector on PGM surfaces in the presence of ions
… is a vital transport and process medium used in mineral processing. Fresh water is substantially utilized as an ideal flotation media in the froth flotation process (Rao et al., 2016). However, the mining sector is impelled to save on the consumption of fresh water and reduce waste discharge …
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An investigation into chemical factors that affect the behaviour of Gangue minerals in the flotation of PGM ores
… is one of the key steps in the beneficiation of Platinum Group Elements (PGE) from the Bushveld Complex in South Africa. This process aims to optimise the recovery of valuable PGE and sulphide minerals and the rejection of unwanted gangue minerals. The major reefs are exploited in South Africa …
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The use of mixed thiol collectors in the flotation of Nkomati sulphide ore
… of collectors are widely used in sulfide and platinum group mineral (PGM) flotation, and a range of performance benefits have been reported for many different systems. An increase in paymetal recovery and grade as well as increased rates of recovery at lower collector dosages has been observed …
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Investigation of the effect of different frother blends on the flotation of selected PGM bearing ores
Concentrators processing platinum group mineral (PGM) bearing ores use polysaccharide depressants to reduce the recovery of the naturally floatable gangue minerals (mainly silicates) present in the ores. Recent work has shown that high depressant dosage can completely depress the naturally …
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The effect of copper sulphate on froth stability
Froth flotation is a mineral beneficiation process implemented in the recovery of valuable minerals from unwanted gangue material. Copper sulphate is used as an activator in the flotation of base metal sulphides (BMS) as it promotes interaction of collector molecules with the mineral surfaces. It …
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The development and demonstration of a practical methodology for fine particle shape characterisation in minerals processing
… to continually declining ore grades, increasing mineralogical complexity, and increasing metal demand, models for the design and optimisation of minerals processing operations are of critical importance. These models do not currently incorporate particle shape, which, although rarely quantified, …
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Performance of the vertical roller mill in a mineral processing application when coupled with internal and external classifiers
Comminution is applied in all mineral processing plants where mineral liberation is needed for separation and concentration of valuable minerals. The process is energy intensive and is predominantly carried out in tumbling mills which are known to be highly inefficient. Comminution technologies …
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Investigating the role of dithiophosphate in the flotation of base metal sulfides
… in flotation systems is of major interest to the Platinum Group Mineral (PGM) and Base Metal Sulphide (BMS) industry. Operationally, SEDTP has proved to be a point of contention as there are conflicting views regarding the role of collector with regard to its behaviour at the air-water and …
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An investigation into the flotation response of sperrylite (PtAs2) by comparative evaluation of crystal structure and bonding atoms
… Bushveld Complex in South Africa is the biggest platinum group elements reserve in the world. One of the major platinum group mineral (PGM) components in this ore is sperrylite (PtAs2), which has been found to be slow floating compared to the other PGMs and often reports to the tailings stream. …