process used concentrate chalcopyrite ore
Hydrometallurgical Processing of Chalcopyrite by
The paper focuses on demonstrating the impact of the so-called attrition-leaching phenomenon on the leaching rate of a chalcopyrite concentrate and provides a first understanding of the underlying mechanisms.
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Low-grade chalcopyrite ore, heap leaching or smelting
2022.5.1 Chalcopyrite, the major mineral source of copper, is commonly treated pyrometallurgically, using froth flotation, smelting, converting and electrorefining
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The Extraction of Copper from Chalcopyrite Concentrate
2023.10.27 The effect of the solid/liquid ratio on copper extraction from chalcopyrite concentrate was studied by leaching 2, 4, 8, and 20 g of chalcopyrite concentrate with
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Solvometallurgical process for extraction of copper from
In this study, a solvometallurgical process for the extraction of copper from suldic ore minerals. fi. (chalcopyrite, bornite, chalcocite and digenite) was developed by using an
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A conceptual process for copper extraction from chalcopyrite
2017.7.1 Abstract. A conceptual flowsheet is proposed and the main processing steps are evaluated for the alkaline processing of chalcopyrite where glycine is the complexing
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Low-grade chalcopyrite ore, heap leaching or smelting
2022.5.1 Chalcopyrite, the most common copper mineral, is typically concentrated through froth flotation followed by the extraction of copper metal pyrometallurgically,
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Optimization of sulfuric acid leaching of roasted chalcopyrite ...
2020.8.26 Copper extraction from chalcopyrite by hydrometallurgical methods can be classified according to used type of solvent such as chloride/chlorine systems, nitric acid,
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Solvometallurgical process for extraction of
2019.12.13 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
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Improving of copper extraction from chalcopyrite by
2023.12.28 Copper is generally produced from its sulfide concentrate by using pyrometallurgical route. Pyrometallurgical production route mainly consists of the
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Electrolytic production of copper from chalcopyrite
2020.8.1 Molten sulfide electrolysis is promising not only for the single-step extraction of copper but also to selectively extract other elements contained in the ore concentrate. Sahu et al. [50] used a BaS-based electrolyte (with La 2 S 3 addition to improve the faradaic efficiency) and showed the selective reduction of copper, molybdenum, and ...
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The Extraction of Copper from Chalcopyrite Concentrate
2023.10.27 Chalcopyrite is of great economic importance since approximately 70% of global copper reserves are present in this mineral [].Traditionally, the main technology for copper extraction from its ores and concentrates was pyrometallurgy, but the gradual depletion of rich ore deposits and growing environmental concerns over pyrometallurgical
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Flowsheet development for selective Cu-Pb-Zn recovery at
2018.6.15 Consistent ore characteristics over many years have demanded only minor process changes; this is set to change with ore being sourced from two new ore zones, namely the WF3 Zone 2 characterized by low Cu grades (0.09% Cu, 2.5% Pb, 6–7% Zn), and WF3 Zone 1 which is characterized by high Cu and low Pb grades (0.48% Cu,
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Liquid Copper and Iron Production from Chalcopyrite, in the
2022.8.29 Clean energy infrastructure depends on chalcopyrite: the mineral that contains 70% of the world’s copper reserves, as well as a range of precious and critical metals. Smelting is the only commercially viable route to process chalcopyrite, where the oxygen-rich environment dictates the distribution of impurities and numerous upstream
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Minerals Free Full-Text Extraction of Copper from Chalcopyrite ...
2022.11.25 Chalcopyrite is well known as being refractory to conventional leaching approaches at atmospheric pressure. The current study investigated a hybrid approach using aqueous ammonia as a pH modifier for glycine-based lixiviant systems to leach copper from chalcopyrite while maintaining surface refreshment using ceramic media at room
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Behavior and Kinetics of Copper During Oxygen Pressure
2023.2.15 In this paper, a novel process leaching complex chalcopyrite without acid under oxygen pressure is proposed, and the leaching behavior and kinetic characteristics of copper in the complex chalcopyrite is studied. The results show that in the process of oxygen pressure leaching of complex chalcopyrite the oxidation dissolution of FeS2
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Optimization of sulfuric acid leaching of roasted chalcopyrite ...
2020.8.26 Chalcopyrite (CuFeS2) 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. In this study, in order to overcome drawbacks of the passivation layers, the concentrate supplied from Eti Bakır A.Ş. Küre Plant in Turkey was roasted at
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Extraction of copper from chalcopyrite with potassium
2021.10.1 The leaching process of chalcopyrite in [EMIm]HSO 4-K 2 Cr 2 O 7 aqueous solution follows an empirical kinetic model 1-2/3 x-(1-x) 2/3 = k d t with the apparent ... Effect of temperature on the copper extraction from chalcopyrite concentrate (Stirring speed: 200 rpm; S/L ... Leaching of chalcopyrite ore agglomerated with high chloride ...
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Improving of copper extraction from chalcopyrite by
2023.12.28 Chalcopyrite concentrate was obtained from Ber-Oner Flotation Plant, Elazig, Turkey. This concentrate was sieved through 75 μm mesh. The fraction passed through this sieve was used in all experiments. This fraction was dried at 353 K for 12 h and sample was stored in a closed vessel for later use.
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Copper extraction from low-grade chalcopyrite in a
2022.1.20 In previous work, the chalcopyrite concentrate and the mixed ore have been bioleached with the assistance of MFCs, respectively achieving the copper extraction efficiencies of 0.19% and 0.15% (Huang et al. 2019a). By comparison, a much higher copper extraction efficiency (3.62%) was obtained in the current study.
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Minerals Free Full-Text A Comprehensive
2022.3.19 A comprehensive recovery process for the selective separation and enrichment of copper, zinc and iron minerals from a polymetallic ore was developed, which consisted of copper flotation, zinc
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Silver Metal Extraction from Refractory Silver Ore Using
2021.1.28 Puvvada GVK, Murthy DSR (2000) Selective precious metals leaching from a chalcopyrite concentrate using chloride/ hypochlorite media. Hydrometallurgy 58:185–191. Article Google Scholar Rath RK, Hiroyoshi N, Tsunekawa M, Hirajima T (2003) Ammoniacal thiosulphate leaching of gold ore. Eur J Miner Process Environ Prot 3:344–352
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Low-grade chalcopyrite ore, heap leaching or smelting
2022.5.1 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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Froth Flotation of Chalcopyrite/Pyrite Ore: A Critical Review
2022.9.21 The results showed that an aerated system is the most effective factor in chalcopyrite concentrate leaching. ... The mixed ore contains 2.18% Cu, 1.46% Zn, (Cu/Zn ratio 1.49) 38.35% Fe, and 41.6% ...
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Impact of mechanochemical effect on chalcopyrite leaching
2015.3.10 Stirred milling is an enabling technology to process low grade finely disseminated ore bodies. Besides size reduction, stirred mill has the ability to deliver high energy to particles which facilitate crystal structure distortion. High energy stirred milling experiments (up to 300 kWh/t) were carried out on chalcopyrite concentrate. The media ...
MoreEnhancing flotation separation of chalcopyrite and
2021.3.18 It will enter the concentrate product along with the foam during the flotation process, affecting the concentrate grade 8,9,10,11. In the flotation process of Copper-Nickel Sulfide Ores, reducing ...
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Effect of Roasting Temperature on the Leaching of
2022.10.4 In this work, chalcopyrite concentrate supplied by bene-ciation of Cu ore from Kure/Kastamonu, Turkey, was used. The concentrate was grey-green coloured and granulated; however, it seemed lumpy due to its humidity. Its elemental analysis was by a semi-quantitative scanning of X-ray uo-rescence (XRF) spectrometer from boron (B) to
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Minerals Free Full-Text The Mechanism of the Effect of Pre
2022.2.6 In this work, we applied the technology of magnetic treatment to the flotation of chalcopyrite. The mechanism of the effect of pre-magnetized butyl xanthate on chalcopyrite flotation was studied using monomineral flotation tests, adsorption tests, conductivity tests, Fourier transform infrared spectroscopy (FTIR), etc. The monomineral
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Froth Flotation of Chalcopyrite/Pyrite Ore: A Critical Review
2022.9.21 In the present work an intense bibliographic search is developed, with updated information on the microscopic fundamentals that govern the behavior of flotation operations of chalcopyrite, the main copper mineral in nature. In particular, the effect caused by the presence of pyrite, a non-valuable mineral, but challenging for the operation due
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Superconducting pulsating high gradient magnetic separation
2018.9.1 In this investigation, the superconducting PHGMS (SPHGMS) process was theoretically described and a cyclic pilot-scale SLon-CD100 superconducting PHGMS (SPHGMS) separator with magnetic induction reaching 9.0 T was briefly introduced, and then the separator was used to purify an ultrafine kaolin ore and separate a low-grade
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Chalcopyrite hydrometallurgy at atmospheric pressure: 2.
2014.5.1 Hydrometallurgical process developments for the extraction of copper from chalcopyrite tend to target complex concentrates, dirty concentrates that would incur penalties if smelted or low-grade ores that are thus far an uneconomic source of copper. Perceived advantages of chloride systems are the higher solubilities of copper and iron,
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A case study of flotation of chalcopyrite-molybdenite ore
2023.6.1 As presented in Table 2, the useful minerals in this ore are mainly chalcopyrite (CuFeS 2) ... Compared with ccp-mlb concentrate obtained by conventional process, concentrate obtained by instant PGA-Z200 flotation required significantly lower dosages of Na 2 S to reach the same separation efficiency. The closed-circuit setup was
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Chalcopyrite Leaching with Hydrogen Peroxide in Formic
2020.2.20 Abstract This study is concerned with the leaching process of copper with hydrogen peroxide (H2O2) and formic acid (HCOOH) from the Küre chalcopyrite concentrate. All experiments were carried out in a leaching system equipped with an adjustable temperature shaker under atmospheric pressure. The needed oxygen was
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Mineral Processing SpringerLink
2017.8.24 The treatment of the ore is carried out in process plants ( Fig. 6.1) generally located at the mine site to reduce costs of long transportation. It is important to note that the grade of valuable minerals in host rocks is usually very low. ... For example, the copper grade of a pure chalcopyrite concentrate would be 34.6%, the remaining 65.4% ...
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Kinetic Evolution of Chalcopyrite Thermal Degradation under
2020.3.26 2.1 Raw Materials. Chalcopyrite is the most widely occurring copper-bearing mineral, and it is the major ore mineral of copper. The composition of the chalcopyrite is usually pure, although on some occasions there may be substitutions of metallic elements such as Co, Ni, Mn, Zn and Sn replacing the Cu or Fe, and As
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Ferric chloride leaching of a mechanically activated
1999.6.1 In this study we examine the feasibility of applying the process to a complex ore concentrate containing both pentlandite and chalcopyrite through the use of a horizontal ball mill for the mechanical activation of chalcopyrite, using a concentrated (∼5 M Cl −) ferric chloride solution for the leaching. The kinetics of dissolution are ...
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Attachment of Acidithiobacillus ferrooxidans and Leptospirillum ...
2012.3.14 The attachment of Acidithiobacillus ferrooxidans and Leptospirillum ferriphilum spp. grown on ferrous medium or adapted to a pyrite mineral concentrate to four mineral substrata, namely, chalcopyrite and pyrite concentrates, a low-grade chalcopyrite ore (0.5 wt%) and quartzite, was investigated. The quartzite represented a typical
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Sulfide Smelting SpringerLink
2021.6.23 Noranda submerged-tuyere process produced copper directly from chalcopyrite concentrate for several years but currently it produces only high-grade matte (72–75% Cu). In order to reduce the cost of recovery of copper from the slag, chalcocite (Cu 2 S) and bornite (Cu 5 FeS 6 ) concentrates having lesser iron as compared to
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Mixed Copper and Gold Ore Concentrates Processing
2023.4.22 In the study of Langa et al., (2014) , Sceresini, (2005), and Dunne, (2016), The collector used for gold and copper ore is usually sodium isobutyl xanthate (SIBX) or potassium amyl xanthate (PAX ...
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