effects of gypsum on copper flotation
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.
effects of gypsum on copper flotation
effects of gypsum on copper flotation - Crusher … effects of gypsum on copper flotation. ... Pyrite Kyanite At the same time, the effects of mining and processing were proving to be . Effect of pH on the Recovery and Grade of Base Metal ...
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 ...
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 spectroscopy and quartz crystal …
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.
Effect of calcium, sulphate and gypsum on copper-activated ...
This situation prevails in Pb/Cu flotation of a sequential circuit. However, the presence of gypsum during copper activation of sphalerite in the Zn circuit does result into heterocoagulation since activated sphalerite gets positively charged and therefore interacts with negatively charged gypsum (Fig. 4b). Dissolution of gypsum prior to activation is therefore imperative.
froth flotation with gypsum - haidyhome.cz
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.
The interaction of clay minerals with gypsum and its ...
In this study, the effect of bentonite and kaolinite minerals with low and high crystallinity on pulp rheology and the flotation of copper and gold minerals was investigated. It was found that clay minerals modified the pulp rheology depending on the type of clay minerals present.
Effects of Soluble Metals Flotation
The effect of copper sulphate may be overcome by the use of hydrogen sulphide or sodium sulphide in an alkaline solution. The use of sodium carbonate, though aiding materially in flotation, is of doubtful utility in plants where the pulp must be dewatered.
The Importance of pH in Flotation
In flotation, pH control is a vital method to control selective mineral separation. A standard depressant that is used is an Alkali. An Alkali is any substance that when mixed with Acid will neutralize each other and form a new stone substance called a BASE. This is very important. The ore may be either alkaline or Acidic.
Flotation Reagents - Mineral Processing & Metallurgy
Flotation Frothers What is the Function of Frothers. The function of frothers in flotation is that of building the froth which serves as the buoyant medium in the separation of the floatable from the non-floatable minerals. Frothers accomplish this by lowering the surface tension of the liquid which in turn permits air rising through the pulp to accumulate at the surface in bubble form.
The effect of biopolymer dispersants on copper flotation ...
Copper recovery increased from 85% to 90%, 94% and 93% at the end of flotation, in the presence of DP-1777, DP-1775 and DP-1778, respectively. DP-1775 and DP-1778 had a better effect on copper recovery than DP-1777. The presence of biopolymers also led to an increase in flotation rate, seen as the higher copper recoveries in the first concentrate.
Effect of Copper Sulfate on Zinc Sphalerite Flotation
As an example of the beneficial effect of copper sulfate in the activation of zinc sphalerite toward flotation, the series of results shown in Fig. 1 is of interest. These represent rougher tests on a sample of heavy pyritic ore. The particular sample in question contained about 5.6% zinc as marmatite; and was treated in a circuit made alkaline with lime, using pine oil as a frother and ...
Effect of calcium, sulphate and gypsum on copper-activated ...
In this study, effect of calcium and gypsum on scheelite and fluorite was investigated using sodium oleate as collector. Micro-flotation and contact angle results showed that the adsorption of calcium could inhibit the hydrophobicity of scheelite and fluorite. Moreover, sulfate could enhance the inhibition.
The effect of copper sulphate addition on the recovery of ...
The effect of copper sulphate addition on the recovery of chromite generally neutral in charge. As a result of this charged nature, CMC adsorption can induce particle dispersion in addition to having a depressant effect which can influence flotation performance (Shortridge et al. 1999; Dalvie et al. 2000).
(PDF) A Review of the Flotation of Copper Minerals
The recovery of these copper minerals by flotation or hydrometallurgy from ores, typically containing 0.5%TCu (open pit mines) and 1-2%TCu (underground mines) is of great commercial importance ...
Ultrasonic Effects on Precipitation and Froth Flotation ...
Ultrasonic Effects on Precipitation and Froth Flotation. ... sonification also promoted the mechanical removal of the zinc hydroxide from the surfaces of the gypsum particles. Froth Flotation and Ultrasonic Conditioning. ... zinc and copper from acid mining drainages and other metal effluents.
Effect of pH on Copper Flotation Recovery VS Mass Pull
An example of testing the effect of pH on rougher flotation on pit samples and the results are presented. Since this is only an example, it needs reminding that not all ores will respond the same. Here, rougher flotation is most Selective at a pH of 9.5 as pH levels in the 9 to 10 range yielded 1% to 2% better recoveries. Mineralogy data also supports this and shows between 3% and 10% of the ...
Impact of gypsum supersaturated water on the ... - DeepDyve
Aug 01, 2013 · In sulphide mineral flotation operations that practice tailings water recycle, for instance, the process water with the recycle water from the tailings treatment could be often saturated or supersaturated with gypsum. Impact of gypsum supersaturated water on the uptake of copper and xanthate on sphalerite.
Minerals | Free Full-Text | Interaction Mechanism between ...
This stone aims to understand the fundamental interaction mechanism between molybdenite and kaolinite in gypsum solution using kerosene as collector. Micro-flotation tests were conducted to study the effect of gypsum solution on the flotation performance of mixed −74 μm molybdenite and −10 μm kaolinite mineral. The results showed that the recovery of molybdenite decreased from 86% to 74% ...