effect of ph on copper flotation

    EFFECT OF GRINDING CHEMISTRY ON THE SULPHIDISATION ,, The recovery of copper by sulphidisation and flotation from a mixed ore has been studied in detail in this thesis Particular focus was given to the effect of pulp chemistry on the sulphidisation mechanism and subsequent flotation response of oxidised sulphide minerals, both ,Effect of pH on the flotation performance of incinerator ,, ABSTRACT Flotation was proved to be effective for decarburization and removal of dioxins from hospital solid waste (HSW) incinerator fly ash, but weathering makes it difficult The effects of three types of surfactants including nonionic (Tween 80), anionic (SDS), and cationic (CTAB) at different pulp pH values on the flotation performance of weathered HSW incinerator fly ash were investigatedEffects of major ions in recycled water on sulfide ,, MINERAS & METAURGICA PROCESSING 137 Vol 33 No 3 August 2016 Effects of major ions in recycled water on sulfide minerals flotation G Bulut and Ü Yenial* Professor and research assistant ,EFFECT OF pH ON SURFACE CHARACTERISTICS AND ,, Effect of pH on surface characteristics and flotation of sulfidized cerussite 677 2003; Rashchi et al, 2005; Kuchar et al, 2006) Unfortunately, difficulties in controlling the dosage of sulfidizing agents are a common issue An excessive amount may cause the depression of oxidized minerals, whereas an insufficient amount resultsInfluence of Ferric and Ferrous Iron on Chemical and ,, The effects of ferrous and ferric iron as well as redox potential on copper and iron extraction from the copper flotation concentrate of Sarcheshmeh, Kerman, Iran, were evaluated using shake flask leaching examinations Experiments were carried out in the presence and absence of a mixed culture of moderately thermophile microorganisms at 50C.

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    [PDF] A study on the effect of active pyrite on flotation ,, DOI: 105277/PPMP1894 Corpus ID: 55290176 A study on the effect of active pyrite on flotation of porphyry copper ores @article{Molaei2018ASO, title={A study on the effect of active pyrite on flotation of porphyry copper ores}, author={Nahid Molaei and F S Hoseinian and B Rezai}, journal={Physicochemical Problems of Mineral Processing}, year={2018}, volume={54}, pages={922 ,Low pH trial in the Ernest Henry Mining Copper Rougher ,, At high pH values (above 105), 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 responseFlotation of copper residues with high oxidation and ,, Jan 01, 2011· Because the pH value of the solution is a very important factor influencing the HS- concentration, it is highly critical to control the pulp pH in the sulphidisation of the copper residu Effects of the pulp's pH value on the flotation results are shown in Figure 4 Figure 4 Effects of the pulp's pH value on flotation of the copper residuThe Effect of Sulfurization Process on Flotation of Copper ,, The effect of pH on the flotation yield , was designed for the acoustic vibration conditioning of xanthate solutions and was tested at a section of an industrial copper flotation plant Results ,Effect of pH, concentration and temperature on copper and ,, Understanding the effect of temperature on the speciation of multivalent metals in solution is essential for many applications in industry The results of the present Cu(II) and Zn(II) solutions speciation studies in tandem with thermodynamic calculations have shown that Cu2+ or Zn2+ ions proliferate in acidic solutions whilst in alkaline medium, solid Cu(OH)2 or Zn(OH)2 colloidal particles form.

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    Decoupling the Effects of Pulp Potential and pH on the ,, 22 Effect of pH and Collector Concentration on Flotation To determine the effects of pulp pH on the flotation recovery of the pyrite mineral, representative subsamples were conditioned and floated at pH 4, 64, 8, 92 and 11 Conditioning of the pulp was carried out at the set pH ,Chapter 6 Improving Flotation of Sphalerite, The effect of pH and electrochemical potential on copper uptake, xanthate adsorption and the hydrophobicity of sphalerite were studied from flotation practice point of view using electrochemical and micro-flotation techniqu Voltammetric studies conducted using the combination of carbon matrix composite (CMC) electrode and surface conduction (SC) electrode show that the kinetics of ,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 (eg 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 (eg lime) and recycled organics (eg ,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 Dow-250 was used as frother Key Words: Sulfurization, flotation, copper, gold, silver 1 INTRODUCTION Flotation has been utilized in the mineral processing industry to concentrate baseEffect 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 95 as pH ,.

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    Effect of collectors, conditioning pH and gases in the ,, Feb 01, 1998· RESULTS Flotation results Figure 1 demonstrates that in the conditions used in this study, ethyl xanthate provides a good separation between sphalerite and pyrite only at high pH valu The flotation of copper-activated sphalerite is not or weakly affected by a change in pH with strong flotation in the pH range 55 to 12(PDF) Redox potential control during flotation of sulphide ,, In this study the effect of pH on potential in solution and sulphur minerals flotation is discussed with various electrod The electrodes were platinum, gold, chalcopyrite, pyrite and galena(PDF) EFFECT OF CLAY MINERALS ON FROTH STABILITY IN ,, Figure 3Effect of serpentine addition on the copper flotation recovery of a prophyry copper ore; Replotted from (Patra, Nagaraj and Somasundaran, 2010) Bulatovic and his co-workers (1999) have also studied the effect of amount and type of clay minerals (present in the ore) on copper flotation recoveryFlotation of Nickel, 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 parameters for the flotation of base metals from a nickel-copper sulphide ore 2 Materials and Methods 2 1Effect of pH on ion and precipitate flotation systems ,, May 01, 2002· Effect of Al(III) as an Activator for Adsorbing Colloid Flotation Separation Science and Technology 1984, 19 (13-15) , 1061-1072 DOI: 101080/01496398408058348 Witold A Charewicz, Sergiusz Basak A kinetic study of precipitate flotation of Zinc(II), Cobalt(II) and Copper(II) hydroxid.

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    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 56% zinc as marmatite; and was treated in a circuit made alkaline with lime, using pine oil as a frother and ,Lime use and functionality in sulphide mineral flotation ,, Nov 01, 2019· A first flotation stage is carried out at low pH (pH 6), in which the copper sulphide is floated while both galena and sphalerite are depressed As shown in Fig 13 , at low pH both lead and zinc float poorly, while copper can still be recovered at high valuEffects Of Gypsum On Copper Flotation | The Interaction Of ,, Modelling Of Pyrite Depression Process By Lime In Copper Effect of ph value on the required concentration moll of ethyl xanthate x ensuring maximum pyrite 1 pyrrhotite 2 and chalcopyrite 3 flotation floatability of copper and iron sulphides in the absence of lime can be explained by taking into account the composition of natural sulphides oxidation productsEffect of pH on Pulp Potential and Sulphide Mineral Flotation, Control of pH is one of the most widely applied methods for the modulation of mineral flotation In this study the effect of pH on potential in solution and sulphur minerals flotation is discussed with various electrod The electrodes were platinum, gold, chalcopyrite, pyrite and galena In solution, potentials were linearly dependent on pH with a different slope for each electrodeConcentrator Process Development Phase IV Flotation Bench ,, Figure 16: Effect of pH and Aero 5100 Promoter Dosage on Flotation Kinetics for Alternative Reagent , required for definitive design of a copper flotation circuit proposed for the Rambler copper - gold property located near Baie Verte, Newfoundland and Labrador The ,.

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    Combined Effect of Operating Parameters on Separation ,, Sep 24, 2018· This study aims to investigate the effects of operational variables on concentrate grade, recovery, separation efficiency, and kinetic parameters of the copper flotation process For this purpose, the effects of the pulp solids content, collector and frother dosage, and preparation and concentrate collection time were studied using a Taguchi experimental designEffect of copper ions on the flotation separation of ,, Jan 01, 2018· Flotation recovery of chalcopyrite (a) and molybdenite (b) as a function of the concentration of copper ions and sulfide ions at pH 8 The separation performance of chalcopyrite and molybdenite using Na 2 S as a depressant was investigated at different Cu 2+ concentrationsEffect of pH on Copper Cleaner Flotation (after Regrind ,, In the study, batch cleaner tests were conducted to confirm the target regrind size and select the cleaner pH conditions The objective of the high pH, collector-starved environment in the cleaners is: To liberate and reject attached silicates, Depress the previously-floated pyrite If the floatability imparted on the pyrite in rougher flotation ,CHAPTER 7 EFFECT OF CONDITIONING pH ON SULPHUR, ,, CHAPTER 7 EFFECT OF CONDITIONING PH ON FLOTATION 96 flotation pH of 72 At this point, the pulp potential was 03V Flotation was then carried out using the reagent suite of the standard 72 Results and Discussion 721 Sulphur Table 71 shows sulphur flotation initial rates and corresponding final recoveries for the two conditioning pHsThe 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 CuSO.

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