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flotation of copper by using sulphuric acid

  • RECOVERY OF COPPER FROM OXIDE COPPER ORE BY

    RECOVERY OF COPPER FROM OXIDE COPPER ORE BY FLOTATION AND LEACHING Kiraz Emirhan M.S. Department of Mining Engineering Supervisor Prof. Dr. Mustafa Ümit Atalay December 2014 65 pages The aim of this study was the recovery of copper from the oxide copper ore by froth flotation and agitating sulphuric acid (H 2 SO 4) leaching.

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  • Leaching characteristics and mechanism of copper flotation

    The copper deposit in Yangla zone of China is large and its recovery is low only using flotation process. Therefore the copper in the flotation tailings is leached by sulfuric acid can improve copper recovery. The factors affecting leaching process and the leaching mechanism were investigated in this study. Copper is leached at a rate of 53.8 when initial H2SO4 concentration is 0.428 mol/L

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  • Selective impurity removal and Cu upgrading of copper

    Aug 01 2020 · 2.2. Leaching experiments. Sulphuric acid leaching tests were conducted by adding 150 g/L H 2 SO 4 solution (200 ml) to the copper concentrate samples (40 g) in a sealed glass flask kept maintained at the desired temperature (30 60 or 90 °C). The slurry was stirred at 800 rpm for 24 h. The redox potentials of the slurries were measured by a Pt vs. Ag/AgCl reference electrode cell.

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  • Acid leaching of oxide–sulfide copper ore prior the

    453 Acid leaching of oxide–sulfide copper ore prior the flotationA way for an increased metal recovery Miroslav D. Sokić1 Vladan D. Milošević1 Velizar D. Stanković2 Vladislav Lj.Matković1 Branislav R. Marković1 1Institute for Technology of Nuclear and Other Mineral Raw Materials Belgrade Serbia 2University of Belgrade Technical Faculty Bor Serbia

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  • Selective Acid Leaching of Copper and Zinc from Old

    The goal of the present work was to develop hydrometallurgical method based on acid leaching which makes it possible to perform selective extraction of non-ferrous metals from old flotation tailings. Leaching was performed with sulfuric acid solutions (from 0.5 to 10 ) and distilled water. Leaching was carried out using percolators and bottle agitator.

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  • Recovery Cu from a Copper Oxide Ore by Flotation and

    The copper oxide ore is high oxidation ratio and the high combination ratio with a low grade of Cu 0.71 . Copper concentrate of Cu 15.02 with a recovery of 38.55 was obtained by flotation. The optimum acid leaching conditions were investigated. Effects of lixiviant concentration solid-to-liquid ratio leaching time were investigated. The acid leaching efficiency was 78.75 relative to

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  • A STUDY OF FLOTATION AND LEACHING BEHAVIOUR OF

    Mar 17 2011 · sulphuric acid provided the best results with 90 copper extraction from the mixtures in 6 hours. Observed copper extractions suggested increased copper extraction from chalcopyrite with this approach. The introduction of cupric and ferrous ions into solution together with variation of

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  • (PDF) Extraction of Cobalt From a Flotation Tailings in

    This study investigated leaching of metals i.e. Cu Co and Zn from flotation tailings of a copper smelter slag using sulphuric acid solutions in the absence/presence of hydrogen peroxide.

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  • Copper extractionWikipedia

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  • RECOVERY OF COPPER FROM OXIDE COPPER ORE BY

    RECOVERY OF COPPER FROM OXIDE COPPER ORE BY FLOTATION AND LEACHING Kiraz Emirhan M.S. Department of Mining Engineering Supervisor Prof. Dr. Mustafa Ümit Atalay December 2014 65 pages The aim of this study was the recovery of copper from the oxide copper ore by froth flotation and agitating sulphuric acid (H 2 SO 4) leaching.

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  • Recovery of Copper from Reverberatory Copper Slag and

    has reduced flotation recoveries and requires high flotation reagent consumption. The present work shows that digestion of the milled copper slag slurry with concentrated sulphuric acid at a temperature of 250oC forms a solid cake and leaching of the solid cake with water is a possible option. However the consumption of sulphuric acid can have a

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  • FLOTATION OF COPPER ORESWESTON D CA

    What I claim as my invention is 1. A process for the flotation recovery of copper values from ores containing copper values in the form of at least one sulphide copper mineral and at least one sulphuric acid soluble copper mineral using a sulfhydryl anionic collector comprising subjecting a pulp of the ore to acid treatment by conditioning the pulp with addition of an acid agent the acid

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  • Copper Leaching from Refractory Flotation Tailings

    Instead the flotation tailings are extracted using concentrated sulfuric acid under high temperature conditions 13 14 . Table 1. Analysis results of copper phase in the flotation tailings ( ). Name Free Oxide Copper Combination Oxide Copper Sulfides and Others Total Copper Content 0.26 0.59 0.06 0.91 Proportion 28.57 64.84 6.59 100 Figure 1.

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  • LEACHING OF A Cu-CoORE FROM CONGO USING

    oxidised copper (2-4 Cu) and cobalt (1-3 Co) 1 2 . The lack of response of Cu-Co oxide minerals during flotation 3 implies that heap or vat leaching should be considered for these ores. In industrial heap or vat operations sulphuric acid is commonly used to leach copper from oxide minerals such as malachite (CuCO 3.Cu(OH) 2) azurite

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  • Flotation Reagents Types and Working Principles CNFREE

    Among the flotation reagents commonly used activators for flotation are sulfuric acid sulfurous acid sodium sulfide copper sulfate and so on. Inhibitors It is a kind of reagents mainly used to increase the hydrophilicity of minerals and to form a hydrophilic film on the surface of the ore particles in flotation

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  • Acid leaching of oxide–sulfide copper ore prior the

    453 Acid leaching of oxide–sulfide copper ore prior the flotationA way for an increased metal recovery Miroslav D. Sokić1 Vladan D. Milošević1 Velizar D. Stanković2 Vladislav Lj.Matković1 Branislav R. Marković1 1Institute for Technology of Nuclear and Other Mineral Raw Materials Belgrade Serbia 2University of Belgrade Technical Faculty Bor Serbia

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  • Flotation Reagents Types and Working Principles CNFREE

    Among the flotation reagents commonly used activators for flotation are sulfuric acid sulfurous acid sodium sulfide copper sulfate and so on. Inhibitors It is a kind of reagents mainly used to increase the hydrophilicity of minerals and to form a hydrophilic film on the surface of the ore particles in flotation

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  • Selective Flotation of Elemental Sulfur from Pressure Acid

    An efficient flotation process was developed to selectively recover elemental sulfur from a high-sulfur pressure acid leaching residue of zinc sulfide concentrate. The process mineralogy analysis showed that the sulfur content reached 46.21 and 81.97 of the sulfur existed as elemental sulfur which was the major mineral in the residue and primarily existed as pellet aggregate and biconical

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  • Sulphuric acid leaching of zinc and copper from Nigerian

    Sulphuric acid leaching of zinc and copper from Nigerian Complex sulphide ore also be catalyzed into hydroxyl radicals which are extremely reactive. The dissolution of ores using sulphuric acid in conjunction with hydrogen peroxide has been studied and successful results were obtained. Jiang et

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  • Recovery of PGMs from an oxide ore by flotation and leaching

    that had the highest PGM recovery with sulphuric acid in order to target the base metals and further concentrate the PGMs in the residue. The base metal recovery from flotation concentrate using sulphuric acid was only efficient for copper and nickel while poor iron recoveries were achieved.

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  • Inhibition of acid mine drainage and immobilization of

    G. Tozsin Inhibition of acid mine drainage and immobilization of heavy metals from copper flotation tailings using 3 tests were also conducted. The amended CFT mixtures were diluted with deionized water to achieve a 2 1 water (L) to solid (kg) ratio consistent with the standard analytical pro-

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  • RECOVERY OF COPPER FROM SMELTING SLAG BY

    flotation of slag tailings using sulphuric acid solutions without or with the addition of either ferric sulphate or hydrogen peroxide. However the maximum copper extraction attained with the slag was modest at about 63 whereas that obtained with the slag flotation tailings was as low as 33 (Urosevic et al. 2015). Accordingly the objective

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  • Treatment of the acidic effluent from a copper smelter by

    Copper can be easily leached from cuprite by using sulphuric acid. The RTB Bor copper smelter generates 8.7 m 3 h -1 of extremely acidic waste effluent (142.4 kgm -3 of sulphuric acid pH -0.464) with relatively high concentrations of dissolved metals and metalloids (Cu Fe Zn Pb and As). The effluent is currently treated with hydrated lime.

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  • Leaching characteristics and mechanism of copper flotation

    The copper deposit in Yangla zone of China is large and its recovery is low only using flotation process. Therefore the copper in the flotation tailings is leached by sulfuric acid can improve copper recovery. The factors affecting leaching process and the leaching mechanism were investigated in this study. Copper is leached at a rate of 53.8 when initial H2SO4 concentration is 0.428 mol/L

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  • Flotation Reagents Types and Working Principles CNFREE

    Among the flotation reagents commonly used activators for flotation are sulfuric acid sulfurous acid sodium sulfide copper sulfate and so on. Inhibitors It is a kind of reagents mainly used to increase the hydrophilicity of minerals and to form a hydrophilic film on the surface of the ore particles in flotation

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  • metallurgy and hydrometallurgy copperIndustrial

    residual effluent produced by strong acid leaching the factory s industrial waste effluents (granulates various pickling processes electrolysis residues). They undergo several different types of treatment (figure 60) gas scrubbing products are processed by the plant producing valuable sulphuric acid for use in lixiviation.

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  • Recovery of PGMs from an oxide ore by flotation and leaching

    that had the highest PGM recovery with sulphuric acid in order to target the base metals and further concentrate the PGMs in the residue. The base metal recovery from flotation concentrate using sulphuric acid was only efficient for copper and nickel while poor iron recoveries were achieved.

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  • Treatment of the acidic effluent from a copper smelter by

    Copper can be easily leached from cuprite by using sulphuric acid. The RTB Bor copper smelter generates 8.7 m 3 h -1 of extremely acidic waste effluent (142.4 kgm -3 of sulphuric acid pH -0.464) with relatively high concentrations of dissolved metals and metalloids (Cu Fe Zn Pb and As). The effluent is currently treated with hydrated lime.

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  • LEACHING OF A Cu-CoORE FROM CONGO USING

    oxidised copper (2-4 Cu) and cobalt (1-3 Co) 1 2 . The lack of response of Cu-Co oxide minerals during flotation 3 implies that heap or vat leaching should be considered for these ores. In industrial heap or vat operations sulphuric acid is commonly used to leach copper from oxide minerals such as malachite (CuCO 3.Cu(OH) 2) azurite

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  • Bioleaching of copper from samples of old flotation

    As copper sulfides are acid soluble copper from flotation tailings can be leached by sulfuric acid solutions.4–6 Another approach for the recovery of copper from tailings would include the use of acidophilic iron oxidizing micro-organisms. This process is

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  • Atmospheric leaching of copper flotation concentrate with

    keywords leaching copper sulphuric acid industrial concentrate galvanic interactions 1. Introduction process for processing of copper flotation concentrate in order to elevate the recovery

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  • The Role of Sulphuric Acid in Copper Plating

    Dec 11 2009 · The sulfuric acid in a copper electrolyte is there for two reasons one is to keep the copper in solution you only used a 0 1 m solution if you use higher concentrations your copper sulfate will partially get Cu (OH) 2. Also the sulfuric acid gives you a better conductivity and with this comes a better throwing power.

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  • A STUDY OF FLOTATION AND LEACHING BEHAVIOUR OF

    Mar 17 2011 · sulphuric acid provided the best results with 90 copper extraction from the mixtures in 6 hours. Observed copper extractions suggested increased copper extraction from chalcopyrite with this approach. The introduction of cupric and ferrous ions into solution together with variation of

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  • The Recovery of Copper from Smelting Slag by Flotation

    Abstract. Aiming at the recovery of copper from smelting slag a flotation approach was studied. It was found that this slag composed of fine particles with complex association and distribution in which bornite was the main copper-bearing mineral after a detailed mineralogy analysis via

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  • RECOVERY OF COPPER FROM OXIDE COPPER ORE BY

    RECOVERY OF COPPER FROM OXIDE COPPER ORE BY FLOTATION AND LEACHING Kiraz Emirhan M.S. Department of Mining Engineering Supervisor Prof. Dr. Mustafa Ümit Atalay December 2014 65 pages The aim of this study was the recovery of copper from the oxide copper ore by froth flotation and agitating sulphuric acid (H 2 SO 4) leaching.

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  • copper extraction and purificationchemguide

    The copper (II) ions are removed again from the organic solvent by reaction with fresh sulphuric acid producing a much more concentrated copper (II) sulphate solution than before. Electrolysis of the new solution. Copper (II) ions are deposited as copper on the cathode (for the electrode equation see under the purification of copper below).

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