effects of gypsum on copper flotation

  • The interaction of clay minerals with gypsum and its ...

    In the previous study, the interaction of two clay minerals, kaolinite and bentonite with gypsum and its effects on the flotation of a copper-gold ore were investigated (Cruz et al., 2015). It was ...

  • The interaction of clay minerals with gypsum and its ...

    The interaction of two clay minerals, kaolinite and bentonite with gypsum and its effects on the flotation of a copper–gold ore was investigated in this study. It was found that bentonite increased the viscosity more than kaolinite when mixed with the copper–gold ore at low shear rates.

  • Impact of gypsum supersaturated water on the uptake of ...

    2013-8-1 · Gypsum supersaturated process water has been shown to have an adverse effect on the flotation of sphalerite minerals. This study probes the mechanism of such effect by determining the uptake of copper and xanthate on sphalerite in gypsum supersaturated water using zeta potential distribution measurement, atomic absorption spectroscopy, UV–visible

  • Impact of gypsum supersaturated water on the uptake of ...

    The effect of Ca (500 ppm) and Mg (50 ppm) ions on the uptake of copper and xanthate on sphalerite and flotation of Cu-activated sphalerite was investigated as a function of pH.

  • The interaction of clay minerals with gypsum and its ...

    2015-6-1 · Six flotation tests were conducted using the copper–gold ore and its mixtures with quartz, clay minerals and gypsum. Fig. 1 shows the mass recovery as a function of water recovery from these tests. As can be seen, flotation of the ore or baseline resulted in a 5% mass recovery and 31% water recovery at the completion of flotation.

  • Effect of calcium, sulphate and gypsum on copper

    2014-1-1 · Effect of sodium carbonate addition on the contact angle of copper activated sphalerite in 0.021 M CaSO 4 and 10 mg/L of gypsum. pH 9 and 30 °C. Fig. 8 shows SEM micrographs supporting the observations obtained in the contact angle measurements presented in Fig. 7 .

  • (PDF) Copper Flotation: Effects of Particle Size, Grinding ...

    In order to study the influence of particle size on the copper flotation, the initial sample. divided in to five size fractions including -38, +38-63, +63-90, +90-125, and +125 µm. These ...

  • The effect of sea water on copper and gold flotation in ...

    In this study, the flotation of a copper–gold ore in the presence of 10% bentonite in tap water and sea water was investigated. It was found that bentonite had a deleterious effect on copper and ...

  • Copper Flotation - Mineral Processing & Metallurgy

    2016-5-16 · Copper Flotation Process Summary. Flotation of Copper Ores. Although basic porphyry copper flotation and metallurgy has remained virtually the same for many years, the processing equipment as well as design of the mills

  • The Effect of Oxidation on the Flotation Behaviour of ...

    2016-6-14 · The Effect of Oxidation on the Flotation Behaviour of Nickel-CopperOres S Kelebek 1 ABSTRACT ... In this paper, the flotation behaviour of nickel-copper ores processed in the Sudbury area is discusse~ with emphasis on the effect of oxidation on individual minerals, pnmarily pyrrhOlite. In general, moderate oxidation of a freshly ground ore

  • Professor Yongjun Peng - School of Chemical Engineering ...

    2022-1-4 · The interaction of clay minerals with gypsum and its effects on copper-gold flotation. Minerals Engineering , 77 , 121 - 130 . doi: 10.1016/j.mineng.2015.03.010 Liu, Di and Peng, Yongjun ( 2015 ).

  • The different effects of bentonite and kaolin on copper ...

    In this study, the effect of different cations, Na+, K+, Mg2+ and Ca2+ with the same anion, Cl−, on the rheology of a copper-gold ore in the presence of bentonite and copper flotation was ...

  • Copper Flotation - Mineral Processing & Metallurgy

    2016-5-16 · Copper Flotation Process Summary. Flotation of Copper Ores. Although basic porphyry copper flotation and metallurgy has remained virtually the same for many years, the processing equipment as well as design of the mills

  • THE EFFECT OF COPPER SULPHATE ON FROTH STABILITY

    2020-12-8 · A special mention goes to the Flotation Research Group for technical advice throughout my studies and to the CMR laboratory staff for their assistance with my ... 4.3.6 Effect of copper sulphate on the zeta potential of pure minerals ..... 79 Activation products analysis ...

  • The Effect of Oxidation on the Flotation Behaviour of ...

    2016-6-14 · The Effect of Oxidation on the Flotation Behaviour of Nickel-CopperOres S Kelebek 1 ABSTRACT ... In this paper, the flotation behaviour of nickel-copper ores processed in the Sudbury area is discusse~ with emphasis on the effect of oxidation on individual minerals, pnmarily pyrrhOlite. In general, moderate oxidation of a freshly ground ore

  • (PDF) The effect of process water salinity on flotation of ...

    The effect of process water salinity on the processes of copper flotation from the Lubin mine area was described. The results of laboratory flotation experiments conducted in tap water and in ...

  • Control of clay minerals effect in flotation. A review

    2018-3-29 · flotation performance and ore quality the negative effect of the clay minerals on flotation should be identified. The presence of clay minerals leads to problems, such as changing the froth stability, which are related to swelling behaviour, increase in pulp viscosity, overconsumption of reagents, slime coating and mechanical entrainment.

  • Effects of Soluble Metals Flotation

    2016-4-11 · In order further to study the effects of copper sulphate on flotation, a solution containing 0.01% CuS04 was employed in another series of tests. When this solution was used alone the separation was extremely poor, the tailing assaying 32 oz. and the concentrate 100 oz. When sufficient quicklime was added to produce a slight alkalinity, the ...

  • Review of Potential Microbial Effects on Flotation - MDPI

    2020-6-12 · The effect of disrupted cells on flotation was studied by Liu et al. . The disrupted cells had a more negative effect on the copper flotation compared to the intact cells of E. coli. Microbial cells can be disrupted in grinding mills and flotation circuits due to

  • Effect of Collector & Frother Concentration on Copper ...

    2018-5-26 · The flotation process may be considered an interactive system consisting of many chemical, operational, and equipment variables. Changing any one of these variables causes an overall system response change. This study examines the effects of simultaneously changing the operating variables of: (1) frother concentration and air flow rate, and (2) frother concentration

  • Professor Yongjun Peng - School of Chemical Engineering ...

    2022-1-4 · The interaction of clay minerals with gypsum and its effects on copper-gold flotation. Minerals Engineering , 77 , 121 - 130 . doi: 10.1016/j.mineng.2015.03.010 Liu, Di and Peng, Yongjun ( 2015 ).

  • Yanhong Wang BEng and MEng in Chemical Engineering

    2019-10-9 · effect of bentonite on copper flotation through reducing the high pulp viscosity. It was found that with Cl-2+or SO 4 2− being an anion, Na +, K , Mg and Ca2+ cations had a different effect on pulp viscosity and copper flotation. At the same salt

  • Copper Flotation - Mineral Processing & Metallurgy

    2016-5-16 · Copper Flotation Process Summary. Flotation of Copper Ores. Although basic porphyry copper flotation and metallurgy has remained virtually the same for many years, the processing equipment as well as design of the mills

  • Effects of Soluble Metals Flotation

    2016-4-11 · In order further to study the effects of copper sulphate on flotation, a solution containing 0.01% CuS04 was employed in another series of tests. When this solution was used alone the separation was extremely poor, the tailing assaying 32 oz. and the concentrate 100 oz. When sufficient quicklime was added to produce a slight alkalinity, the ...

  • Effects of fine–coarse particles interaction on flotation ...

    2018-12-6 · effects with coarse particles of other minerals through which the other mineral is concealed by masking of the fine particles. Such an interactive effect between minerals has widely been reported in slime coating (Forbes, Davey, and Smith 2014), carrier flotation, or flocculation flotation (Yang et al. 2013;

  • A study on the effect of active pyrite on flotation of ...

    2018-6-27 · evaluated the effect of three chemical reagent configuration on selective flotation in low and high pyritic copper sulphide ores. They showed that the collector of isopropyl-n-ethyl thionocarbamate creates the highest copper grade and the lowest iron recovery (Hassanzadeh and Hasanzadeh, 2016).

  • Control of clay minerals effect in flotation. A review

    2018-3-29 · flotation performance and ore quality the negative effect of the clay minerals on flotation should be identified. The presence of clay minerals leads to problems, such as changing the froth stability, which are related to swelling behaviour, increase in pulp viscosity, overconsumption of reagents, slime coating and mechanical entrainment.

  • Review of Potential Microbial Effects on Flotation - MDPI

    2020-6-12 · The effect of disrupted cells on flotation was studied by Liu et al. . The disrupted cells had a more negative effect on the copper flotation compared to the intact cells of E. coli. Microbial cells can be disrupted in grinding mills and flotation circuits due to

  • Depressant Action of Ca and Mg on Flotation of Cu ...

    2013-7-18 · Abstract. Calcium and magnesium are commonly present in flotation process waters in the order of 500 and 50 ppm, respectively. The effect of Ca (500 ppm) and Mg (50 ppm) ions on the uptake of copper and xanthate on sphalerite and flotation of Cu-activated sphalerite was investigated as a function of pH.

  • Effect of pH on the Recovery and Grade of Base Metal ...

    2016-2-26 · flotation of base metal sulphides mainly focused on reagent optimization to achieve optimum recovery and grade [2]. In this study the effect of pH and its balance with reagent dosages is examined with the intention of improving flotation performance. The Bushveld complex which is the world’s largest known source of PGMs with very complex