This technology is a hydrometallurgical method of extracting copper from chalcopyrite. The technology reduces chalcopyrite using aqueous ions and is effective across a broad concentration range (0.01 M–10 M). This method is more cost-effective and less polluting than existing hydrometallurgical processes and may be competitive with ...
Keywords: glycine; chalcopyrite; ammonia; copper; leaching 1. Introduction Chalcopyrite, as the most abundant source of sulfide copper in the Earth's crust and one of the most refractory sulfide copper minerals, has been investigated intensively for copper extraction in past decades. Typically, copper from chalcopyrite …
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 …
The main copper minerals worldwide correspond to primary sulfides chalcopyrite and bornite, so it is crucial to understand the microbial variations affecting their efficient copper extraction. In this sense, this work shows that the standard approaches of bioleaching tests under stirring conditions prevent biofilm formation on …
Copper can be extracted from various types of ores, most of which belong to the sulfidic ores such as chalcopyrite, bornite, covellite, digenite and chalcocite. Chalcopyrite is the …
Extracting copper from chalcopyrite involves complex metallurgical processes. Occurrence: Chalcopyrite can be found in various geological settings, including porphyry copper deposits, hydrothermal veins, sedimentary rocks, and skarn deposits. It can occur in a wide range of environments and is a common mineral in many parts of …
1. Introduction1.1. Background to chalcopyrite leaching. The objective of this research was to evaluate a proposed conceptual flowsheet for the leaching of chalcopyrite using aqueous glycine in an alkaline environment with a suitable oxidant, and to identify potentially feasible routes for copper recovery from such a pregnant leach solution with …
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 …
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. Waste matter ...
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 …
Various reported works on the dissolution kinetics and solvent extraction of copper from chalcopyrite ores are discussed thus. It is important to note that limited data in this area of research from Nigeria origin has been documented (Olubambi et al. 2006). These authors did not address some kinetic parameters such as activation energy (Ea ...
A conceptual flowsheet is proposed, where chalcopyrite concentrate can be extracted by a leaching–grinding process and copper can be recovered by a solvent extraction–electrowinning circuit. Chalcopyrite is well known as being refractory to …
Getting copper from chalcopyrite, CuFeS2. Chalcopyrite (also known as copper pyrites) and similar sulphide ores are the commonest ores of copper. The ores typically contain …
Numerous pyro- and hydro-metallurgical processes were developed to extract copper from such sulfide minerals. However, due to dwindling grades of copper …
1. Introduction. Chalcopyrite (CuFeS 2) is the most important copper source in the world, which accounts for approximately 70% of the known copper reserves in the lithosphere (Wang, 2005).However, the mineral is also known to be the most refractory copper-bearing sulfide. Bioleaching as an emerging alternative to other conventional …
In this study, a solvometallurgical process for the extraction of copper from sulfidic ore minerals (chalcopyrite, bornite, chalcocite and digenite) was developed by …
The copper(II) ions in the chalcopyrite are reduced to copper(I) sulfide (which is reduced further to copper metal in the final stage). The iron in the chalcopyrite ends up converted into an iron(II) silicate slag which is removed. Most of the sulfur in the chalcopyrite turns into sulfur dioxide gas.
Minerals 2022, 12, 1507 3 of 15 was too high. A study that focused on extracting copper from waste-printed circuit boards (WPCBs) using alkaline glycine solutions has also shown that Cu extraction ...
Here, we investigate electrolytic alternatives, reviewing the background and recent developments for four classes of electrolytes to directly decompose the most …
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 …
Getting copper from chalcopyrite, CuFeS 2. Chalcopyrite (also known as copper pyrites) and similar sulphide ores are the commonest ores of copper. The ores typically contain low percentages of copper and have to be concentrated by, for example, froth flotation before refining. ... Extracting copper from other ores. Copper can be extracted from ...
Research on chalcopyrite leaching represents a great challenge, given its importance as one of the most abundant copper minerals and its significant role in global copper extraction.
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 …
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 ...
A conceptual flowsheet is proposed, where chalcopyrite concentrate can be extracted by a leaching–grinding process and copper can be recovered by a solvent extraction–electrowinning circuit.
The dissolution of copper and iron from chalcopyrite concentrate in the presence of ammonium persulfate (APS) and ammonium hydroxide was investigated under atmospheric leaching conditions. Experiments were designed by central composite design (CCD). Under the optimum leaching conditions ((NH4)2S2O8 concentration = 328 g/L; …
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.
Key words: copper, extraction, electrowinning, chalcopyrite, aqueous solutions, hydrometallurgy, ionic liquids, molten salts, sulfides, electrochemical engineering, renewable energy Abstract The transition to renewable energy infrastructure necessitates rapid growth in copper production, averaging at least 3.5% annually to 2050.
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 ...
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 …
