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A gaseous chlorination process for the hydrometallurgical treatment of a chalcopyrite concentrate was investigated. The overall process is visualized to consist of low-temperature chlorination-selective oxidation, followed by aqueous chloride leaching and SX-EW for producing electrolytic copper, elemental sulfur and ferric oxide. In this …
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Extraction process of copper from chalcopyrite concentrate by low-temperature chlorination and selective oxidation in fluidized-bed reactors was studied.
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Copper Recovery from Chalcopyrite Concentrate by Oxidative Roasting and Acid Leaching ... roast-leach-electrowin" route, an attempt was made to optimize cost, energy and product quality for metal extraction process route. The use of microwaves was the alternative process route selected for the optimisation. Pyrite concentrate (0.17% …
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A novel integrated alkaline process for the extraction of copper from chalcopyrite has been proposed and the chemistry of the main steps in the process including reagent recirculation has been demonstrated. At ambient temperatures, copper extractions of up to 52% are achievable after 580 h in solutions of glycine and air as …
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DOI: 10.1039/c9gc02983d Corpus ID: 210154020; Solvometallurgical process for extraction of copper from chalcopyrite and other sulfidic ore minerals @article{Li2020SolvometallurgicalPF, title={Solvometallurgical process for extraction of copper from chalcopyrite and other sulfidic ore minerals}, author={Xiaohua Li and …
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increase the copper extractions.37–40 Methanesulfonic acid, an organic acid was used as an alternative for mineral acid for extraction of copper from chalcopyrite.41,42 However, these systems were in general water-rich processes. In this paper, we describe a green solvometallurgical process for the extraction of copper from sulfidic ore minerals,
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The method used to extract copper from its ores depends on the nature of the ore. Sulphide ores such as chalcopyrite are converted to copper by a different method from silicate, carbonate or sulfate ores. ... The copper(II) ions in the chalcopyrite are reduced to copper(I) sulfide (which is reduced further to copper metal in the final stage ...
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In this context, the hydrometallurgical process has received widespread attention as an effective and environmentally benign method of extracting copper from chalcopyrite, which consists of leaching, solvent extraction, and electro-winning (Velásquez-Yévenes et al., 2018, Wu et al., 2020, Zhao et al., 2019a, Zhao et al., 2019b).
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1. Introduction. Chalcopyrite (CuFeS 2) is economically the most important Cu-sulfide mineral in the world, and unlike many other sulfide minerals, it is known to be recalcitrant in hydrometallurgical processing (Bobadilla-Fazzini et al., 2014, Zhang et al., 2014).In recent years, due to depleting high-grade copper resources, the processing of …
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A novel integrated alkaline process for the extraction of copper from chalcopyrite has been proposed and the chemistry of the main steps in the process including reagent …
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A conceptual flowsheet is proposed, where chalcopyrite concentrate can be extracted by a leaching–grinding process and copper can be recovered by a solvent …
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The commonest ore used in the extraction of copper is Chalcopyrite (CuFeS 2) also known as Copper Pyrites and other such sulphides. The percentage of copper in the actual ore is too low for direct extraction of copper to be viable. ... The copper extracted from this process is mixed with the slag and is called Matte Copper due to its texture ...
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In this paper, we describe a green solvometallurgical process for the extraction of copper from sulfidic ore minerals, with the emphasis on chalcopyrite. The preferred organic …
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During the extraction of copper, Chalcopyrite is concentrated using the froth flotation process. The product from this froth flotation process is known as copper concentrate.
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In this study, SDS is used to enhance the sulfuric acid leaching of chalcopyrite in aqueous and isopropanol media. The presence of SDS increased copper extraction into the solution in both solvents. However, it was the "isopropanol–sulfuric acid–SDS" system that proved to be particularly effective for copper recovery from …
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Solvometallurgical process for extraction of copper from chalcopyrite and other sulfidic ore minerals. Xiaohua Li, Wouter Monnens, +2 authors. K. Binnemans. Published in …
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The process of extraction of copper from its ores and preparing copper metal or chemical compounds for use in various goods is known as copper processing. ... chalcopyrite, bornite, cuprite, malachite, and azurite. It can be found in seaweed ashes, many marine corals, human liver, and many mollusks and arthropods. Copper metal …
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Chalcopyrite is the main mineral source of copper ore for extracting and producing copper. However, with the continuous mining of copper ore, the grade of chalcopyrite decreases year by year and its composition becomes more and more complex. The traditional pyrometallurgical extraction process has been unable to make efficient use …
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extraction of major constituents such as copper and iron in chalcopyrite concentrate. Copper and iron dissolution yields from original concentrate could be obtained as about 20% and 22% respectively under the conditions of 0.25 kg/L of APS concentration, 333 K of leaching temperature, 240 min of leaching time, 0.25 mol/L of H2SO4
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A low-temperature-chlorination selective oxidation followed by aqueous chloride leaching and SX-EW for producing electrolytic copper, elemental sulfur and ferric oxide was investigated for hydrometallurgical processing of a chalcopyrite concentrate. In this article, the selective oxidation phase of the process is described. The selective …
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The percentage extraction of copper was determined using the following equation: (5) ε Cu 2 + = C 1 V C 2 m × 100 % where C 1 represents the Cu 2+ concentration in the leaching solution (g/L), V stands for the volume of the leaching solution (L), C 2 signifies the copper grade in the chalcopyrite concentrate (wt%), and m is the mass of ...
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This paper elaborated on the sustainability of the copper extraction process. In fact, an alternative copper extraction route from mixed sulphide ores, chalcopyrite and chalcocite using mesophilic biomass consortium at 33.3 °C and ferric leaching process were attempted. Bioleaching experiments were settled with a fraction size of −75+53 µm.
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Copper extraction along with electricity generation from the low-grade chalcopyrite was achieved in the column bioleaching process assisted by MFCs. Results showed that after 197 days bioleaching of low-grade chalcopyrite, 423.9 mg copper was extracted from 200 g low-grade chalcopyrite and the average coulomb production reached 1.75 C/d.
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Getting copper from chalcopyrite, CuFeS 2. Chalcopyrite (also known as copper pyrites) and similar sulphide ores are the commonest ores of copper. ... Extracting copper from other ores. ... (II) ions are deposited as copper on the cathode (for the electrode equation, see under the purification of copper below). The anodes for this process were ...
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Copper is a valuable metal used in various industries, including electronics, construction, and plumbing. Extracting copper from chalcopyrite involves complex metallurgical processes. Occurrence: Chalcopyrite can be found in various geological settings, ... which is the process of rock transformation due to high temperature and …
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However, the copper extraction e ciency in chalcopyrite bioleaching process is low due to some reasons: high lattice energy of chalcopyrite (Wang, 2005; Zhang et al., 2016), and easy to form ...
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The addition of NaCl in the ammonium persulfate-APS (as an oxidant) leaching was investigated. APS has some advantages compared with conventional oxidants and its standard redox potential (E°) is 2.0 V. Effect of six parameters such as NaCl concentration, APS concentration, temperature, time, liquid–solid ration (L/S), and …
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Extraction of copper from sufidic ores, either by pyrometallurgy or hydrometallurgy, has various limitations. In this study, a solvometallurgical process for the extraction of copper from sulfidic ore minerals (chalcopyrite, bornite, chalcocite and digenite) was developed by using an organic lixiviant (FeCl 3 as oxidizing agent and ethylene glycol (EG) as organic …
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In this study, a solvometallurgical process for the extraction of copper from sulfidic ore minerals (chalcopyrite, bornite, chalcocite and digenite) was developed by using an organic lixiviant (FeCl 3 as oxidizing agent and ethylene glycol (EG) as organic solvent).
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2.2.2.1.1. Intec Copper Process The intec copper process is a proven, patented hydrometallurgical process for the extraction of pure copper and precious metal from sulphide concentrates. The process is based on the electrolytic deposition at the cathode of LME (London Metal Exchange).
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A certain mine produces 2.0x10^8 kg of copper from chalcopyrite (CuFeS2) each year. The ore contains only 0.80 percent Cu. (a) Calculate the mass in tons of ore processed. (b) Calculate the mass in tons of SO2 produced by the copper extraction process.
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Copper is an essential metal in today's economy, due to its superior electrical and thermal conductivities, alloying properties, and chemical uses. Most copper is produced viamining and refining, and most copper is found in the earth's crust as chalcopyrite, CuFeS2. Typically, chalcopyrite is concentrated and fed to a high …
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In this study, we propose a novel temperature-programmed ammonium chloride (NH4Cl) roasting–water-leaching process to extract nickel (Ni), cobalt (Co), and copper (Cu) from polymetallic sulfide ...
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In this study, a hydrometallurgical process for copper extraction from chalcopyrite in [EMIm]HSO 4 aqueous solution with potassium dichromate was developed. The most …
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The primary focus lies in uncovering the optimal conditions for oxidation, which will facilitate the dissolution of chalcopyrite. Simultaneously, this undertaking provides vital data that …
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Hydrometallurgical techniques are in industrial operation to extract copper from oxide and secondary sulfide ores, but the treatment of chalcopyrite remains challenging. …
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The commonest ore used in the extraction of copper is Chalcopyrite (CuFeS 2) also known as Copper Pyrites and other such sulphides. The percentage of copper in the actual ore is too low for direct extraction of …
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Extracting copper from its ores. The method used to extract copper from its ores depends on the nature of the ore. Sulfide ores such as chalcopyrite ((CuFeS_2)) are converted to copper by a different method from silicate, carbonate or sulfate ores. Chalcopyrite (also known as copper pyrites) and similar sulfide ores are the …
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