Chalcopyrite: A copper iron sulfide mineral (CuFeS 2) that is the most important copper ore. Lixiviant: A solvent used to extract metals from ores through leaching. Leaching: The process of...
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a technology of chalcopyrite and beneficiation process, which is applied in the direction of flotation, solid separation, grain treatment, etc., can solve the problems of difficult to obtain a steady metallurgical performance, adverse to the sequential tailing treatment and the environment, and extremely toxic sodium cyanide reagents, etc., to reduce the consumption of …
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Recently, non-polar organic solvents have been employed to enhance the efficiency of chalcopyrite leaching [21,22]. Ethylene glycol has demonstrated its prowess as an exceptional medium for this ...
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A detailed review of chalcopyrite deposits, production and consumption, mining, ore processing, steps involved in the pyrometallurgical and hydrometallurgical processing of copper as well as the dissolution kinetics and microbial studies …
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Copper can be directly extracted from the chalcopyrite and concentrated ore. Chalcopyrite-associated minerals contain copper (Cu), iron (Fe), zinc (Zn), and Sulphur (S). …
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Today, around 20% of copper-bearing ores are treated with the hydrometallurgical process, which stands out as a process with low pollutant emissions and lower energy consumption [1,2].
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Pyrometallurgy: This high-temperature process involves crushing, grinding, and flotation to concentrate the chalcopyrite. The concentrate is then smelted to convert it into a copper matte (a mixture of copper and sulfur). Finally, refining …
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In this study, a combined process consisting of salt roasting and acid leaching was conducted to recover copper per sulphide concentrate with 43.5% of chalcopyrite. The chalcopyrite concentrate ...
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Albion ProcessTM o Sable received a parcel of sulphide copper concentrate containing approximately: 30% Copper (predominantly Chalcopyrite, Bornite and lesser amounts of Chalcocite) 19% Total Sulphur 14% Iron o Being originally designed as whole ore leach tanks, their sizing was excessive compared to the planned feed rate and selected equipment.
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Schematic process flow for treating chalcopyrite, from raw ore to copper wire rod. Each vertical black line is a process step with the material inputs represented by horizontal flows on the left ...
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The dynatec process involves oxidative leaching of chalcopyrite concentrate at 150 o C using coal at a modest dosage (25 kg/t of concentrate) as an effective anti-agglomerant (Collins and Kofluk, 1998). Sulfide oxidation …
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ore can be converted to metal in a reducing atmosphere (Bachmann, 1993; Lechtman and Klein, 1999). However, a complete roasting of the ore is nearly impossible when working under reconstructed prehistoric conditions, es-pecially if the ore pieces are several millimetres to centi-metres in size: as the size of the pieces increases, the dif-
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The chalcopyrite primary ore used in the present invention mainly contained 0.94% Cu, 23.20% TFe, 14.38% S, 3.9% MgO, 28.03% SiO 2, and the principal mineralogical composition were sulfide minerals (including 24.75% pyrhotite, 10.71% pyrite, 3.07% chalcopyrite, 0.01% galena, etc), 8.07% iron oxide (mainly comprising magnetite), and gangue ...
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A detailed review of chalcopyrite deposits, production and consumption, mining, ore processing, steps involved in the pyrometallurgical …
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Valuable mineral in an ore such as chalcopyrite ore can be separated from each other and from worthless gauge minerals by the froth flotation process.reThe process was developed in Australia at the start of the 20. th. Century to treat the primary sulfidic silver/lead/zinc ore at Broken Hill (Woods and Doyle, 2000). Many approaches were pursued
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Chalcopyrite (CuFeS 2) is commonly used ore in production of copper, but leaching of this ore is very slow and inefficient due to "passivation" during leaching at atmospheric conditions. ... salt roasting is an effective technique in extracting various metals from sulphide minerals or concentrates. The roasting process with chloride salts ...
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A detailed review of chalcopyrite deposits, production and consumption, mining, ore processing, steps involved in the pyrometallurgical and hydrometallurgical processing of copper as well as the ...
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A series of leaching tests were carried out to investigate the effect of the solid/liquid ratio, stirring speed, temperature, oxidant and acid concentrations, and lixiviant …
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The economic viability of a process varies depending on the operating cost, capital cost and the revenue from sales. In this study, technical and economic feasibility of treating 3000,000 t/year low grade chalcopyrite ore (CuFeS 2 content >90%) through pyrometallurgical and hydrometallurgical routes were investigated. It is expected that at ...
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ground and floated to concentrate the chalcopyrite and other sulfide fraction (containing 25-35 wt% Cu). These comminution and floating processes are costly and energy-intensive, and this energy intensity increases exponentially as ore grades deplete below 0.5% [3]. Meanwhile,
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Results of these investigations were used in designing a plant for the economic evaluation presented in this report. Process Description. A plant is designed to produce 165 tons of copper per day from a chalcopyrite concentrate having the chemical analysis shown in table 1. The concentrate is assumed to be dry.
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International Journal of Mining Engineering and Mineral Processing 2012, 1(1): 1-16 DOI: 10.5923/j.mining.20120101.01 A Review on Novel Techniques for Chalcopyrite Ore
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This work deals with the process of chalcopyrite concentrate roasting in a fluidized-bed reactor. The roasting ... transformations of primary ore minerals during roasting.
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treatment of sulfide minerals, and today, it is used for the treatment of zinc concentrate and gold ore [13]. Hence, its application to chalcopyrite concentrate is of interest for this research work. Various chemical reactions have been proposed for leaching of chalcopyrite in sulfate solution with dissolved oxygen as the oxidant.
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process route to recover uranium, rare earth elements, and heavy metals from residues of mining exploitation of the gibbsite-bearing shales []. Moreover, the copper tailings 2 are the uneconomic fraction leftover of the otation process used to separate the valuable co …
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Studying the process of chalcopyrite concentrates roasting, many researchers concluded that the chalcopyrite oxidation is not developed by its disintegration into simple copper and iron sulfides, but by the formation of bornite stage.3–11 The chalcopyrite transformation into bornite is theoretically explained by reaction diffusion that could ...
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The present invention relates to a mineral processing technology and method for refractory chalcopyrite ores, particularly to a mineral processing technology and method for the separation of chalcopyrite from multiple natural types of copper ores containing chalcopyrite, pyrrhotite, talc and serpentine, which belongs to the technical field of mineral processing.
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The grade and recovery of the concentrates were respectively 26.87% and 82.85% Pb for lead concentrate, 14.40% and 82.34% Cu for copper concentrate, 9.43% and 21.51% Fe for iron concentrate. The ...
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the chalcopyrite concentrate was evaluated by the X'Pert High Score Plus program (2theta=14-80°, step=0.05(2´). The chemical compositions of the chalcopyrite concentrate determined using atomic absorption spectrometry (AAS) and chemical analysis were 24.8% Cu, 19.6% Fe, and 32.4% S (Table 1). Analytical grade KCl and H2SO4 were used in this ...
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