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extraction process of copper from chalcopyrite

extraction process of copper from chalcopyrite

inorganic chemistry - Extraction of copper from ...

Aug 26, 2021 · Most of the sulfur in the chalcopyrite turns to sulfur dioxide gas. This is used to make sulfuric acid via the contact process (copper extraction and purification). Overall equations for these series of steps are: (1) 2 C u F e S X 2 + 2 S i O X 2 + 4 O X 2 C u X 2 S + 2 F e S i O X 3 + 3 S O X 2. (2) 2 C u F e S X 2 + 3 O X 2 2 C u S + 2 F e O ...

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A conceptual process for copper extraction from ...

Jul 01, 2017 · 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 oxidant. Ambient ...

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Extraction Of Copper | Mining, Concentration, Smelting ...

Iron in Chalcopyrite is removed as iron silicate slag. Most of the sulphur in Chalcopyrite turns into Sulphur dioxide (SO 2). The reaction of these processes can be written as: 2CuFeS 2 +2SiO 2 +4O 2 → Cu 2 S+2FeSiO 3 +3SO 2. The copper extracted from this process is mixed with the slag and is called Matte Copper due to its texture and ...

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Why the Extraction of Copper from Chalcopyrite is so ...

Sulphide ores such as chalcopyrite are converted to copper by a different method from silicate, carbonate or sulphate ores. So, extraction of Copper from it becomes very difficult & it is a lengthy process because-. (i) It contains many impurities in such a high amount that the percentage of Copper in it becomes only 2-3%.

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US6503293B1 - Process for the extraction of copper ...

A process for the extraction of copper from a copper sulphide containing concentrate such as chalcopyrite, involves dispersing the finely divided copper sulphide containing concentrate in an aqueous sulphuric acid solution to form a slurry; providing an effective amount of a suitable surfactant such as lignosol or quebracho; reacting with agitation the slurry and surfactant with free oxygen ...

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(PDF) Solvometallurgical process for extraction of copper ...

Nov 05, 2019 · 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 ...

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A conceptual process for copper extraction from ...

A process is proposed for the extraction of Cu from chalcopyrite with alkaline glycine. • The leach conditions are at pH > 10 at atmospheric pressure and the reagents are recycled. • Cu leaching is evaluated under ambient and elevated temperatures. • Cu

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Why the Extraction of Copper from Chalcopyrite is so ...

Sulphide ores such as chalcopyrite are converted to copper by a different method from silicate, carbonate or sulphate ores. So, extraction of Copper from it becomes very difficult & it is a lengthy process because-. (i) It contains many impurities in such a high amount that the percentage of Copper in it becomes only 2-3%.

Read More
US6503293B1 - Process for the extraction of copper ...

A process for the extraction of copper from a copper sulphide containing concentrate such as chalcopyrite, involves dispersing the finely divided copper sulphide containing concentrate in an aqueous sulphuric acid solution to form a slurry; providing an effective amount of a suitable surfactant such as lignosol or quebracho; reacting with agitation the slurry and surfactant with free oxygen ...

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Solvometallurgical process for extraction of copper from ...

Dec 13, 2019 · 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 solvent).

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Innovations in Copper: Mining & Extraction: Producing ...

Three of the processes introduced above have made great strides in solving these problems for the extraction of copper from chalcopyrite: The GEOCOAT™ Process - A heap leaching process that is capable of bioleaching copper concentrates. It does this by coating the concentrate slurry onto a support rock, or substrate material, and stacking this coated material in a bioxidation heap.

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Hydrometallurgical process for extracting copper from ...

What is claimed is: 1. A process for the extraction of copper from copper containing minerals such as chalcopyrite and bornite comprising the steps of: comminuting the concentrate, having a particle size of at least 40 μm, in a conventional attrition grinder and in the presence of a liquid dispersing agent, selected from the class consisting of ammonium hydroxide, potassium hydroxide and ...

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EXTRACTION OF COPPER

EXTRACTION OF COPPER FROM SULPHIDE ORE Large amount of copper are obtained from copper pyrite (CuFeS2) by smelting. Ores containing 4% or more copper are treated by smelting process. Very poor ores are treated by hydro-metallurgical process. EXTRACTION OF COPPER BY SMELTING PROCESS Following steps are involved in the extraction of copper.

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copper extraction process from copper ore

The most common found copper ore in nature is chalcopyrite which is a mixed ore of CuFeS 2. It contains only 0.5% Cu by mass. AN INTRODUCTION TO COPPER EXTRACTION. 20101221&ensp·&ensp2.2 OVERVIEW OF COPPER EXTRACTION The copper extraction process begins at an open cut mine where Copper Ore is blasted and removed via Excavators and Tip Trucks ...

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Chapter 6 Copper Production Technology

discovered that heat made copper more malle-able. Casting and smelting of copper began around 4000-3500 B.C. (see figure 6-2). About 2500 B. C., copper was combined with tin to make bronze—an alloy that allowed stronger weapons and tools. Brass, an alloy of copper and zinc, probably was not developed until 300 A.D.

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Thermophilic Bioheap Leaching of Chalcopyrite Concentrates

The extraction of copper from chalcopyrite has for centuries been limited to pyrometallurgical methods. Smelting of chalcopyrite is an efficient process but costly both in terms of capital investment, operating costs and environmental compliance. Biological extraction appeared

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A Review on Novel Techniques for Chalcopyrite Ore Processing

Jan 01, 2012 · 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 to sulfur dioxide gas. This is used to make sulfuric acid via the contact process (copper extraction and purification). Overall equations for

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Solved A certain mine produces 2.0x10^8 kg of copper from ...

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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Dissolution of Chalcopyrite in Presence of Chelating Agent ...

Oct 06, 2021 · In hydrometallurgical copper extraction from chalcopyrite, strong oxidants and acidic leaching conditions are required. Leaching studies of chalcopyrite have been carried out using various leaching agents such as sulfuric acid [ 2 , 3 , 4 ], hydrochloric acid and chlorite medium [ 5 , 6 ], ammonia [ 7 ], and various salts [ 8 , 9 , 10 ].

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Extraction of Copper from Chalcopyrite Concentrates ...

A gaseous chlorination process for 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.

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A conceptual process for copper extraction from ...

A conceptual process for copper extraction from chalcopyrite in alkaline glycinate solutions J.J. Eksteena,⇑, E.A. Orabya,b, B.C. Tandaa a Department of Mining Engineering and Metallurgical Engineering, Western Australian School of Mines, Curtin University, GPO Box U1987, Perth, WA 6845, Australia bMining and Metallurgical Engineering, Faculty of Engineering, Assiut University, Egypt

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An Exergetic Comparison of Copper Extraction from ...

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 temperature pyrometallurgical process which produces >99.99% purity ...

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EXTRACTION OF COPPER

EXTRACTION OF COPPER FROM SULPHIDE ORE Large amount of copper are obtained from copper pyrite (CuFeS2) by smelting. Ores containing 4% or more copper are treated by smelting process. Very poor ores are treated by hydro-metallurgical process. EXTRACTION OF COPPER BY SMELTING PROCESS Following steps are involved in the extraction of copper.

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copper extraction process from copper ore

The most common found copper ore in nature is chalcopyrite which is a mixed ore of CuFeS 2. It contains only 0.5% Cu by mass. AN INTRODUCTION TO COPPER EXTRACTION. 20101221&ensp·&ensp2.2 OVERVIEW OF COPPER EXTRACTION The copper extraction process begins at an open cut mine where Copper Ore is blasted and removed via Excavators and Tip Trucks ...

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Chlorate-based oxidative hydrometallurgical extraction of ...

Mar 01, 2009 · The extraction of such metals from their ores has commonly been performed using mainly pyrometallurgical, hydrometallurgical, and biochemical processes (Habashi, 2003, Han, 2003, Bosecker, 1997, B, 2001, Pradhan et al., 2008). Among the copper sulfides used to produce copper, chalcopyrite is the predominant mineral (Padilla et al., 2007).

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Enhancing the kinetics of pyrite catalyzed leaching of ...

In this study, the use of silver-enhanced pyrite in the Galvanox™ process to improve the extraction of copper from chalcopyrite was investigated. The catalytic properties of pyrite have been improved such that all pyrite samples accelerate the rate of copper extraction regardless of their sources. Under appropriate conditions, complete copper ...

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Copper extraction - Wikipedia

Copper extraction refers to the methods used to obtain copper from its ores.The conversion of copper consists of a series of physical and electrochemical processes. Methods have evolved and vary with country depending on the ore source, local environmental regulations, and other factors.. As in all mining operations, the ore must usually be beneficiated (concentrated).

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WO2000011228A1 - Hydrometallurgical extraction of copper ...

A hydrometallurgical process for extracting copper and any one or more than one of zinc, silver and gold from a sulphide ore or concentrate is disclosed. The process includes a range of mineral species that contain copper and one or more than one of zinc, silver and gold, which process includes two or more than two leach steps using each liquors of different composition, each leach step ...

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Innovations: Introduction to Copper: Mining & Extraction

The process yields concentrates containing roughly 30% copper, which are sequentially fed to a smelter, a furnace in which most of the some iron and sulfur are removed, then to a converter or converting furnace, where most of the remaining iron and other impurities are removed. (Depending on the type of smelting and converting furnace used, as ...

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Which process is used to purify blister copper during the ...

(i) Given below are the steps for extraction of copper from its ore. Write the reaction involved. (a) Roasting of copper (I) sulphide. (b) Reduction of copper (I) oxide with copper (I) sulphide. (c) Electrolytic refining. (ii) Draw a neat and well-labelled diagram for electrolytic refining of copper.

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Metals | Free Full-Text | Leaching Chalcopyrite ...

Feb 06, 2019 · This article presents a copper leaching process from chalcopyrite concentrates using a low-pressure reactor. The experiments were carried out in a 30 L batch reactor at an oxygen pressure of 1 kg/cm2 and solid concentration of 100 g/L. The temperature, particle size and initial acid concentration were varied based on a Taguchi L9 experimental design.

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Sulfuric Acid-Oxygen Leaching for In-Situ Extraction of ...

May 02, 2018 · Sulfuric Acid-Oxygen Leaching for In-Situ Extraction of Copper Chalcopyrite. Hydrometallurgical treatment of chalcopyrite by sulfuric acid based systems for primary recovery of copper is limited by the refractory nature of the mineral (Bartlett, 1973; Gerlach et al, 1973; Vizsolyi et al, 1967). At ambient temperatures and pressures, leaching of ...

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Solvometallurgical process for extraction of copper from ...

May 04, 2020 · A new solvometallurgical process. In this new SIM² KU Leuven study, a solvometallurgical process for the extraction of copper from sulphidic ore minerals (chalcopyrite, bornite, chalcocite and digenite) was developed by using an organic lixiviant (FeCl 3 as oxidising agent and ethylene glycol (EG) as organic solvent) (see Figure 1). Figure 1.

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