effect of ph on copper flotation

  • The impact of water quality on flotation performance

    The impact of water quality on flotation performance pH Eh DO and dissolved species in recycle water streams (e.g. thickener overflow decant (tailings) dam return) contributing to a circuit water are also shown in Table I. TDS and TOC levels may also be raised by reagent addition for pH control (e.g. lime) and recycled organics (e.g

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  • Review of the effect of grinding media on flotation of

    Thornton E. The effect of grinding media on flotation selectivity Canadian Mineral Processors Annual General Meeting p. 223 (1973). Petruk W. and Hughson M.R. Image analysis evaluation of the effect of grinding media on the selective flotation of two lead-zinc-copper CIM Bulletin p. 128 (1977).

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  • 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 chemical substance called a BASE. This is very important. The ore may be either alkaline or Acidic. To have a positive control over flotation it is necessary to be

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  • The interaction of clay minerals with gypsum and its

    The objective of this study was to assess the effect of lime and soda ash as pH modifiers on the flotation of a copper-gold ore mixed with kaolinite at different concentrations.

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  • The effect of underground mine water on performance of the

    is shown that the underground mine water has a deleterious effect on flotation performance. The adverse effect of the underground water was successfully negated by adding lime into the primary ball mills and increasing the pH of the slurry from a natural pH of 8 to the flotation pH of 10.5. Traditionally the pH

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  • Effect of Rinkalore Mixture on the Flotation of Mupine

    Copper and cobalt present in the ore were concentrated with optimal doses of sodium silicate Rinkalore mixture of 500 g/t 1500 g/t respectively and optimum tall oil and pH of 23 and 9.5 respectively. The influence of Rinkalore Bioex Rinkalore Booster Q pH and sodium silicate on optimum operating conditions were studied.

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  • RECOVERY OF COPPER FROM OXIDE COPPER ORE BY

    ground particles under microscope. During the flotation tests the effects of type and dosage of collectors pH and dosage of activator Na 2 S were examined. Results of flotation tests were unsuccessful in terms of both recovery and grade of concentrate product. The highest copper recovery of concentrate was found as 61.35 with

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  • Dissolved-Air Flotation of Metal Ions

    PH FIG. 1. Effect of sodium sulfide and pH on the removal of copper ions by dissolved-air precipitate flotation. Cu2 1 50 rng/L. Sodium sulfide expressed as percentage equivalent to copper. Dissolvcd-air flotation recycle 10 .

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  • Effect of alkalinity of a pulp on selective flotation of

    We study the effect of one of the main parameters of flotation ore-dressing specifically alkalinity of the pulp on the selective flotation of sulfide and oxide minerals of copper from the Udokan deposition ores (Chita oblast). It is found that the optimum values are pH = 9 for sulfide minerals of copper and pH = 10 for the oxide ones.

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  • The effect of underground mine water on performance of the

    is shown that the underground mine water has a deleterious effect on flotation performance. The adverse effect of the underground water was successfully negated by adding lime into the primary ball mills and increasing the pH of the slurry from a natural pH of 8 to the flotation pH of 10.5. Traditionally the pH

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  • EFFECT OF pH ON SURFACE CHARACTERISTICS AND

    EFFECT OF pH ON SURFACE CHARACTERISTICS AND FLOTATION OF SULFIDIZED CERUSSITE The effect of pH on surface characteristic and flotation of sulfidized cerussite was studied by micro-flotation tests dissolution experiments scanning electron microscopy (SEM) energy dispersive sulfidization flotation method. Oxidized lead zinc and copper

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  • Effect of pH and Temperature on the Biosorption of Heavy

    Effect of pH on biosorption by . Bacillus licheniformis. 4.3 Effect of Incubation Temperature Figure 2 shows the effect of incubation temperature on metal biosorption. Maximum removal of metal ions was observed at 30⁰C for Iron and 45⁰C for Copper ions with efficacy of

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  • Dissolved-Air Flotation of Metal Ions

    PH FIG. 1. Effect of sodium sulfide and pH on the removal of copper ions by dissolved-air precipitate flotation. Cu2 1 50 rng/L. Sodium sulfide expressed as percentage equivalent to copper. Dissolvcd-air flotation recycle 10 .

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  • THE EFFECT OF COPPER SULPHATE ON FROTH STABILITY

    THE EFFECT OF COPPER SULPHATE ON FROTH STABILITY Wadzanai Nyabeze BSc(Eng) in Chemical Engineering University of Cape Town The decrease in froth stability could have an effect on the overall flotation performance as a result of possible activation of gangue minerals by copper sulphate . Page v 4.3.1 Effect of pH on the zeta potential

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  • Effect of Seawater on Sulfide Ore Flotation A Review

    In parallel the secondary ions present in seawater cause a colloidal precipitation and a strong buffering effect which difficult the operation at high alkaline condition. The objective of this review is to present a summary of the current knowledge on the subject of seawater flotation processes highlighting the copper sulphide ores flotation.

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  • 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).

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  • The Adsorption of Cu Species onto Pyrite Surface and Its

    The adsorption of Cu species onto pyrite surface and its effect on flotation were investigated by using microflotation tests first-principle calculations and XPS surface analysis. The results indicated that the flotation of pyrite appears to be activated with CuSO4 only at alkaline pH while being depressed at acidic and neutral pH. The adsorption of copper ions on pyrite surface

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  • Copper-Cobalt oresDanafloat

    Differential flotation sequence A differential copper-cobalt flotation separation which begins with selective copper flotation by raising the slurry pH to 10 with lime and using a dithiophosphate copper collector. The tails produced in the first differential flotation step is followed by a pyrite and pyrrhotite flotation stage using xanthate

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  • EFFECTS OF EDTA ON SELECTIVE FLOTATION OF SULPHIDE

    minimize the negative effect of oxidation on flotation. Clarke et al. (1995) has suggested some techniques to remove oxidation products particularly metal hydroxides from mineral surface. These techniques can be either chemical (dissolution by changing the pH extraction by EDTA) or mechanical (sonification and attrition with quartz).

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  • Effects of pH and pulp potential on selective separation

    flotation the effects of pH pulp potential aeration by nitrogen and air during the Mo- Cu flotation were investigated. 2. Materials and Methods Through a systematic sampling program a representative Cu-Mo concentrate sample was collected from the Sungun Cu-Mo concentrate thickener underflow which is

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  • Flotation of Nickel-Copper Sulphide Ore Optimisation of

    the flotation recovery of Ni Cu and Co from a nickel-copper sulphide ore. The effect on flotation performance of various parameters such as pH collector dosage solids and depressant dosage at different levels was investigated. Therefore the main objective of the study was to optimize the process

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  • Effect of Copper and Iron Ions on the Sulphidizing

    In order to study the influence of S 2− Cu 2 and Fe 3 ions on the flotation of copper oxide the flotation experiments with various pH values and different amount of Na 2 S CuSO 4 and FeCl 3 were conducted. The results of copper oxide flotation are shown in Figure 3. The recovery of CuO under different pH conditions is shown in Figure 3(a).

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  • 1. Introduction

    Flotation behavior of copper and nickel from mine tailing was investigated under varying concentrations of PAX ranging from 0 g/t to 200 g/t when other flotation parameters were fixed at 200 g/t of MIBC concentration 50 g/t of pulp density slurry pH of 5400 rpm of stirring speed and 6 minutes flotation time.

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  • Effect Of Ph To Iron Bearing Copper In Flotation

    Flotation of iron-bearing tungsten minerals and mica from gravity tailings of rare-metal ores processingeffect of ph on the depression of iron oxides in the presence of complex gangue silicate mineralsaid42an atomic force microscopy in the study of the flotation of copper sulfide mineralsaid25henyang zhanghina.

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  • scirp

    Therefore PAX dosage was selected as 50 g/t in further flotation studies. 3.1.3. Effect of pH. To study the effect of pH on the flotation of mine tailing Ca (OH) 2 was used as a pH regulator through flotation experiments. The flotation tests were carried out at fixed conditions such as 50 g/t PAX 200 g/t MIBC 50 g/t pulp density for 6

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  • effect of ph on bornite flotationPozemnihokejcb

    effect of ph on bornite flotation citiclubin. Home gt effect of ph on bornite flotation Copper extraction techniques refers to the methods for pper from its ores nversion nsists of a series of chemical >>Chats . Live Chat extraction of copper from chalcopyrite. (PDF) Control of grinding conditions in the flotation of

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  • Low pH trial in the Ernest Henry Mining Copper Rougher

    At high pH values (above 10.5) the forged media is passivated so as the pH of the system drops the media corrosion rate increases and floods the system with the corrosion products affecting flotation. As the high chrome media is much more inert pH has less of an effect on copper flotation response.

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  • Water Quality in PGM Ore Flotation The effect of Ionic

    This study investigates the interactive effect of plant water ionic strength and pH in the flotation of a sulphidic PGM bearing ore. Results suggest that water quality variations may have effects at both the air-water interface as well as the mineral air interface. Key words Froth stability Ionic strength pH Water quality Water recovery

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  • (PDF) A Review of the Flotation of Copper Minerals

    ore or when the copper flotation is carried out at lower pH 7 . Another important parameter whic h has a remarkable effect on the flotation of sulphide minerals is pH. It is

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  • Combined Effect of Operating Parameters on Separation

    Sep 24 2018 · Although copper flotation and the effect of key parameters and operational conditions have been studied previously 2 3 10 31 the main focus of these studies have been the impact of each individual operational condition on the recovery of the flotation process. The combined effect of these factors on each other and on the efficiency and

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  • Effect of Copper and Iron Ions on the Sulphidizing

    The treatment of smelting slag has attracted much attention nowadays. This study investigates the influence of Na 2 S CuSO 4 and FeCl 3 on sulphidizing flotation of copper oxide. The results show that a proper Cu 2 concentration can increase the sulphidizing effect of copper oxide while Fe 3 #x2b inhibits the sulphidizing effect.

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  • 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

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  • THE EFFECT OF COPPER SULPHATE ON FROTH STABILITY

    THE EFFECT OF COPPER SULPHATE ON FROTH STABILITY Wadzanai Nyabeze BSc(Eng) in Chemical Engineering University of Cape Town The decrease in froth stability could have an effect on the overall flotation performance as a result of possible activation of gangue minerals by copper sulphate . Page v 4.3.1 Effect of pH on the zeta potential

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  • Application of Aeration to Complex Sulphide Ore and its

    3418A(90g/t) 10 min flotation 3.1.2. Effects ofpHduring aeration The effects of aeration pH on metallurgy are given in Figure 1. In these tests the aeration pH was adjusted at the beginning of aeration with lime 3.1.3. Effects of aeration time The effects of the duration of aeration on copper and zinc recovery are given in Figure 2. Copper

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  • effect of ph on copper flotation

    The Effect of Sulfurization Process on Flotation of Copper . The effect of the parameters such as pH pulp density particle size and collector amount were investigated. KAX was used as collector and Dow250 was used as frother. Key Words Sulfurization flotation copper gold silver 1. INTRODUCTION Flotation has been utilized in the mineral

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