• Copper Flotation

     · PROCESS CONTROLS. Automatic controls are usually provided throughout modern plants to measure and control pulp flow, pH and density at various points in the circuit. Feed and density controls are relatively common and the newer installations are using automatic pulp level controls on flotation machines and pump sumps.

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  • Statistical investigation of flotation parameters for ...

     · This study is focused on the froth flotation reprocessing of a copper mineral from flotation tailings. The effects of flotation parameters including pulp density, collector dosage, frother dosage, and dispersant dosage were statistically examined to obtain an effective approach for concentrating copper minerals.

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  • ALLOGY: Froth Flotation

     · Froth flotation is a highly versatile method for physically separating particles based on. differences in the ability of air bubbles to selectively adhere to specific mineral surfaces in a. mineral/water slurry. The particles with attached air bubbles are then carried to the surface and. removed, while the particles that remain completely ...

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  • 7 Factors Affecting Froth Flotation Process

     · Froth Flotation machine plays an indispensable role in the mineral beneficiation process, flotation is susceptible to a number of factors during the process, including grinding fineness, slurry concentration, pulp pH, pharmaceutical system, aeration and agitation, flotation time, water quality and other process factors. The factors that affect ...

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  • Considering the effect ofm pulp Chemistry during flotation ...

    froth obtained in a batch flotation cell as each pulp factor was changed. This study has shown that careful control of the pulp chemistry, namely increasing IS, increasing pH, decreasing DO and decreasing Eh, resulted in improved froth stability.

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  • US4268380A

    An improvement in the froth flotation separation of metallic sulfide mineral ores, particularly those ores bearing copper and molybdenum, in which a mercaptan collector is used in an earlier primary flotation stage, the improvement comprising the addition of activated carbon to achieve deactivation of the mercaptan collector prior to the component mineral separation stage, thereby providing ...

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  • The Critical Role of Pulp Density on Flotation Separation ...

     · minerals Article The Critical Role of Pulp Density on Flotation Separation of Nickel-Copper Sulfide from Fine Serpentine Yawen Gao 1, Guofan Zhang 1,2,*, Mengtao Wang 1 and Dezhi Liu 1 1 Department of Mineral Engineering, School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; [email protected] (Y.G.); [email protected] .cn …

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  • Estimated Water Requirements for the Conventional ...

    Froth flotation is part of a copper beneficiation process in which finely ground ore is placed in ... This flotation slurry, also referred to as pulp, contains from 25 to 40 percent solids. After the series of concentration steps, the ... the amount of water required to process copper sulfide ore through a conventional crush-grind-flotation-

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  • How to Solve the Common Problems of Froth Flotation Process?

     · As the common mineral processing process, the froth flotation process is widely used in the concentrator. Because the froth flotation process is strict with grinding fineness, pulp density, flotation reagent, the flotation plant operators must inspect the flotation conditions during the operation of the flotation machine.

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  • A NEW PARADIGM IN SULFIDE PROCESSING ...

    buoyancy to float to the pulp/froth interface, but too little buoyancy to transfer up through the froth phase. The lower curve plotted in Figure 4a effectively illustrates the impact of this phenomenon for a case in which the froth density at the base is assumed to be 90% gas by volume (ρ f =0.1 gm/cm3).

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  • Development of copper recovery process from flotation ...

     · The effect of pulp density on copper and iron HPL from the concentrate of flotation tailings was investigated under the following conditions: H 2 SO 4 concentration of 0 M and a total pressure of 2.0 MPa at a temperature of 180 °C for 60 min, while varying the pulp density …

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  • Development of a Combined Flotation and High Pressure ...

    The present study focused on the re-processing of copper and nickel from mine tailings. In this work, recovery of copper and nickel from mine tailing by combined process of flotation and high pressure oxidative leaching were considered. In the first stage, effects of flotation parameters including collector type, collector dosage, and pH and pulp density were examined.

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  • Froth Flotation Copper Ore Processing Plant View Froth

    The Link Between Particle Size And Froth Stability. In this work air recovery was used as a measure of froth stability to determine the flotation response of a copper tailings ore to changes in particle size distribution and superficial gas velocity The system exhibited a maximum in air recovery which correlates well with the local peak in dynamic froth stability presented in previous work

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  • Blog: Measuring density in the flotation process (2/4 ...

     · Pulp and froth phases. The effect of flotation feed density on metallurgical performance has been investigated. Results of test work have shown that the pulp density affects key parameters of the flotation process in both the pulp and froth phases (Runge et al, 2012). One of the findings was that froth phase recovery presumably improves because ...

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  • Basic Principles & Variables Affecting Froth Flotation

     · The purpose of the oil in froth-flotation is (1) to form, together with the water and solid of the pulp and the gas introduced into the pulp, a froth; and (2), to aid in the selection of the particles of mineral of metallic, resinous or adamantine luster in the pulp from the gangue minerals. Not all oils will perform both of these functions ...

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  • Mineral processing

    Froth flotation is an important concentration process. This process can be used to separate any two different particles and operated by the surface chemistry of the particles. In flotation, bubbles are introduced into a pulp and the bubbles rise through the pulp. In the process, hydrophobic particles become bound to the surface of the bubbles.

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  • DENSITY IN THE FLOTATION PROCESS WHITEPAPER

    The effect of flotation feed density on metallurgical performance has been investigated. Results of test work have shown that the pulp density affects key parameters of the flotation process in both the pulp and froth phases (Runge et al., 2012). One of the findings was that froth …

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  • CHAPTER-9 FROTH FLOTATION AND ITS APPLICATION TO ...

    Fig. 9.1: Schematic representation of flotation process. In flotation concentration, the mineral is usually transferred to the froth leaving the gangue in the pulp or tailing. This is direct flotation as opposed to reverse flotation, in which the gangue is separated in to the float fraction

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  • Optimization of Chalcopyrite Froth Flotation Process by ...

    The particle size of the particle and the froth stability, viscosity and pulp density during the process relevant factors during the process in the copper concentration process by flotation [2-5] Generally, flocculants and peptizes during flotation are applied to allow clays to be included into the pulp in suspended form. This reagent can ...

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  • Cao Binfang et al. Metallurgy and materials

    the actual flotation process. The current methods for the detection of flotation indicators mainly integrate the field experience of operating workers, expert knowledge and statistical modeling rules. In González et al. (2003), feed grade, feed rate, pulp density and pulp level obtained during the copper flotation process were

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  • OPTIMIZATION OF FLOTATION PARAMETERS FOR …

    depressing copper and iron sulfides (Wills, 1997). In addition, it should be noted that conditioning time, pulp density, and reagent additions are the most important parameters in the separation of copper-molybdenum (Bulatovic, 2007). The floatability of molybdenum in porphyry copper ores depends on …

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  • TECHNICAL NOTES 9 FLOTATION

    through the pulp. 8.1.3 Froth phase Particles enter the froth phase when a bubble carrying the particles crosses the pulp-froth interface. The froth phase floats on top of the pulp phase and is formed by the bubbles that break through the surface of the pulp phase. The water in the flotation cell is conditioned to promote the formation of

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  • (PDF) Froth recovery of industrial flotation cells ...

    Froth recovery of industrial flotation cells. Felipe Contreras. Introduction Flotation process modellingMetallurgical performance in flotation-related processes has been typically evaluated by two key indexes: mineral recovery and concentrate grade om a practical point of view three approaches are commonly used to characterize the overall ...

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  • COPPER Copper production

    are stirred into the pulp, rise with them to the surface of the pulp, and are skimmed off as a froth of fine concentrate. The hydrophilic gangue minerals remain in the pulp. Organic reagents with sulfur-containing groups at their polar end, such as xanthates, are used as collectors in the flotation process.

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  • pulp density flotation tailings

    Statistical investigation of flotation parameters for . Mar 01, 2021 This study is focused on the froth flotation reprocessing of a copper mineral from flotation tailings The effects of flotation parameters including pulp density, collector dosage, frother dosage, and dispersant dosage were statistically examined to obtain an effective approach for concentrating copper minerals

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  • pulp density of copper ores

    Pulp Density Of Copper Ores. common & basic formulas for mineral processing calculations,pulp densities; calculation of circulating load in a classifier; calculation of as used in these formulas the specific gravity of the ore is obtained simply by test i—ratio of concentration 30, recovery of copper 89.bioleaching for copper extraction of marginal ores,to the processing of low-grade copper ...

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  • Fundamentals of Flotation

     · Froth flotation, is a physicochemical method of concentrating fine minerals and coal. It can be stated that Flotation is a physiochemical separation process that utilises the difference in surface properties of the valuable minerals and the gangue minerals. E.g. …

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  • The Critical Role of Pulp Density on Flotation Separation ...

    A nickel-copper sulfide system usually coexists with serpentine in deposits. Low nickel-copper recovery and high content of serpentine in concentration adversely affects subsequent metallurgical processes. In this study, test data showed different rheological results at various densities. When the solid ratio of sulfide to serpentine was 1:1, lower pulp density (20 wt %) contributed to better ...

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  • Combined Effect of Operating Parameters on Separation ...

    flotation chemical and equipment operating conditions [40]. They can be effectively used to evaluate variables affecting the flotation process [16]. Particle size, reagent type and dosage, air flow rate, pulp density, and wash water rate are some of the influential pa-rameters on flotation process efficiency [8, 28, 33, 34, 39]. Although copper ...

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  • US Patent for Froth flotation process Patent (Patent ...

    Froth flotation process Nov 9, 1983 - Hercules Incorporated The froth flotation of ore and coal is significantly improved in recovery and grade of valuable minerals and coal when a depressant combination of an inorganic sulfite and the salts of certain sulfonated compounds are employed.

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  • The Effect of Particle Size and Shape on Transport through ...

    transient froth that is produced in the froth flotation process for mineral separation. In this system, hydrophilic non-value particles present in the interstitial liquid phase do not attach to air bubbles, and their removal is desirable. The original hypothesis was that as particles become

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  • Froth flotation process

    More specifically, the improved process is a method for recovery of metal values by froth flotation from metallic sulfide mineral ores comprising copper and molybdenum, including the steps of: (A) forming an aqueous mineral pulp from the ore:

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