copper extraction from cu2s

Copper Mining and Extraction Sulfide Ores

This KS3 education resource looks at copper mining, extraction and pyroprocessing of sulfide ores

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Electrochemistry of Molten Sulfides: Copper Extraction from BaS-Cu

Dec 31, 2015 The electrolytic extraction of liquid copper at 1105C from a molten sulfide electrolyte composed of 57 wt BaS and 43 wt Cu2S was investigated DC cyclic voltammetry, Fourier transformed AC voltammetry, and galvanostatic electrolysis revealed that the electrodeposition of copper is possible in the

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EXTRACTION OF COPPER

IMPORTANT ORES OF COPPER Copper pyrite or chalcopyrite (CuFeS2) Chalocite (Cu2S) or copper glance Malachite green CuCO3 Cu(OH)2 Azurite blue 2CuCO3 Cu(OH)2 Bornite (3Cu2S Fe2S3) or peacock ore Melaconite (CuO) etc EXTRACTION OF COPPER FROM SULPHIDE ORE Large amount of copper

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Electrochemistry of Molten Sulfides: Copper Extraction from BaS-Cu2S

Dec 31, 2015 Sulfide-containing ores are the main raw material for copper extraction The conventional chemical principle underlying metal extraction from such ore (smelting) is the selective oxidation of sulfide ions (S2) by oxygen The reaction 1 forms copper metal and sulfur dioxide (SO2) as products, as written here

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dspace cover page - Research Collection

Consequently, modern smelting processes have restricted abilities of impurity removal Another inherent disadvantage of conventional copper extraction is the generation (Cu2S), chalcopyrite (CuFeS2), and enargite (Cu3AsS4)) and two commercial copper concentrates It was demonstrated that the absence of oxygen,in

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Thermochemical properties of the system Cu-S at elevated

in solid copp'--er,sulphur dissolved in liquid copper and liquid copper- sulphide; the standard free energy of formation of CU2S -- i \ ,:,': Detailed knowledge of the chemical behaviour of the systems Cu-S, Cu-o and Cu-S-Ois vital to understanding and improvement of processes for extraction of copper from its ores

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Electrochemistry of Molten Sulfides: Copper Extraction from BaS-Cu

Dec 31, 2015 The electrolytic extraction of liquid copper at 1105C from a molten sulfide electrolyte composed of 57 wt BaS and 43 wt Cu2S was investigated DC cyclic voltammetry, Fourier transformed AC voltammetry, and galvanostatic electrolysis revealed that the electrodeposition of copper is possible in the

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Metallurgy of copper - SlideShare

Dec 6, 2017 Copper pyrite or chalcopyrite CuFeS2 2 Chalcocite or copper glance Cu2S 3 Malachite green CuCO3 Cu(OH)2 4 Azurite blue 2CuCO3 Cu(OH)2 5 Bornite or Peacock ore 3Cu2S Fe2S3 6 Cuprite Cu2O; 3 EXTRACTION OF COPPER Copper is mainly extracted from its sulfide ores by smelting

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Why is the extraction of copper from pyrite more difficult than

G of formation of Cu2S is greater than that of CS2 and H2S Hence, neither carbon nor hydrogen can reduce Cu2S to Cu metal G of formation of Cu2O is much less than CO2 Therefore, carbon can easily reduce Cu2O to Cu Cu2O + C(s) Cu(s) + CO(g)

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copper extraction and purification - Chemguide

COPPER This page looks at the extraction of copper from its ores, its purification by electrolysis, and some of its uses Before you get too bogged down in the extraction of copper, make sure that you need it for whatever syllabus you are using Extracting copper from its ores The method used to extract copper from its ores

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Copper - Great Mining Company

The concentration of copper in ores averages only 0 6 , and most profitable ores are sulfides, especially chalcopyrite (CuFeS2) and to a lesser extent chalcocite (Cu2S) These minerals are intense from crushed ores to the level of 10 to 15 copper by froth flotation or bioleaching Heating this material with silica in flash

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GCSE Chemistry 2 Higher 4472-02 - Amazon AWS

Cu2S + O2 2Cu + SO2 (a) Use the above equation to calculate the mass of copper produced on reacting 20 5 tonnes of copper(I) sulfide with an excess of oxygen 3 Ar(Cu) = 64 Ar(S) = 32 Mass of copper = tonnes (b) When the extraction was carried out with 20 5 tonnes of chalcocite only 12 3

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Mineralogical Changes within Polish Weissliegend - IMWA

chalcocite (Cu2S, 1 3 wt ), covellite (CuS, 1 0 wt ) and bornite (Cu5FeS4, 0 9 wt ) After 18 days the copper extraction was 84 for biotic samples and therefore significantly higher compared to abiotic controls (52 ) MLA data showed that biotic dissolution was faster for all three copper ore minerals The results of

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Copper , Lead , Magnesium , Aluminium Extraction Metallurgy

Jan 29, 2013 Extraction of Copper: Copper is mainly extracted from the copper pyrites After the concentration of its ore by froth floatation process, the ore is roasted in a current of air to remove arsenic , antimony and much of sulphur The reaction occurring are : 1) 2CuFeS2 + O2 ----> Cu2S + 2FeS + SO2 ^ (major reaction)

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The Extraction of Copper - Chemistry LibreTexts

Jun 11, 2017 The method used to extract copper from its ores depends on the nature of the ore Sulfide ores such as chalcopyrite ( C u F e S 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 commonest

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The Extraction of Copper - Chemistry LibreTexts

Jun 11, 2017 The method used to extract copper from its ores depends on the nature of the ore Sulfide ores such as chalcopyrite ( C u F e S 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 commonest

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Synthesis of Uniform Cu2S Nanowires from CopperThiolate

Uniform hexagonal Cu2S nanowires with 26 nm diameters, 0 1 to several μm in length, were made by precipitation and thermolysis at 155 °C for 120 min from a Cuthiolate colloid with a viscosity of 93 5 mPa/s The morphologies of the final nanoproducts are governable through control of the coordination chemistry of Cu

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Copper Mining and Extraction Sulfide Ores

This KS3 education resource looks at copper mining, extraction and pyroprocessing of sulfide ores

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copper extraction and purification - Chemguide

COPPER This page looks at the extraction of copper from its ores, its purification by electrolysis, and some of its uses Before you get too bogged down in the extraction of copper, make sure that you need it for whatever syllabus you are using Extracting copper from its ores The method used to extract copper from its ores

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EXTRACTION OF COPPER

IMPORTANT ORES OF COPPER Copper pyrite or chalcopyrite (CuFeS2) Chalocite (Cu2S) or copper glance Malachite green CuCO3 Cu(OH)2 Azurite blue 2CuCO3 Cu(OH)2 Bornite (3Cu2S Fe2S3) or peacock ore Melaconite (CuO) etc EXTRACTION OF COPPER FROM SULPHIDE ORE Large amount of copper

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Copper - Princeton University

Copper ore, other minerals, waste rock (gangue) Copper minerals, iron and other metallic pyrites, byproducts, and gangue Same as mining but in the form of fine particles Copper minerals, iron pyrites, miscellaneous minerals (including valuable byproducts), and water (8-10 ) Copper sulfide (CU2S), iron sulfide (FeS),

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Copper(I) sulfide powder, 325 mesh Sigma-Aldrich

Nanoscale copper sulfide hollow spheres with phase-engineered composition: covellite (CuS), digenite (Cu1 8S), chalcocite (Cu2S) Peter Leidinger et al Nanoscale, 3(3) Speciation and leachability of copper in mine tailings from porphyry copper mining: influence of particle size Henrik K Hansen et al Chemosphere

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Copper metallurgy at the crossroads - doiSerbia

Jul 14, 2007 Cu2S + O2 = 2Cu + SO2 1 1 4 The horizontal furnace When rich massive copper sulfide deposits became scarce, mining engineers turned to low-grade ores This move coincided with the invention of the flotation process at the beginning of the twentieth century Hence it became possible to obtain rich

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Oxidation of Copper Sulfides in Aqueous Ammonia I Formation of

Western Mining Corporation, Kwinana Nickel Refinery, Kwinana, W A 6167 Abstract Elemental sulfur, rather than sulfate or thiosulfate ions, is the major sulfur-containing product when CuS or Cu2S are oxidized at temperatures below 40" with oxygen in a large excess of aqueous ammonia containing ammonium sulfate at

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Copper - Great Mining Company

The concentration of copper in ores averages only 0 6 , and most profitable ores are sulfides, especially chalcopyrite (CuFeS2) and to a lesser extent chalcocite (Cu2S) These minerals are intense from crushed ores to the level of 10 to 15 copper by froth flotation or bioleaching Heating this material with silica in flash

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METALLURGY OF COPPER-EXTRACTION OF COPPER-BLISTER

METALLURGY OF COPPER IMPORTANT ORES OF COPPER Copper pyrite or chalcopyrite (CuFeS2) Chalocite (Cu2S) or copper glance Malachite green CuCO3 Cu(OH)2 Azurite blue 2CuCO3 Cu(OH)2 Bornite (3Cu2S Fe2S3) or peacock ore Melaconite (CuO) etc EXTRACTION OF

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Phase relations in the Cu2S-FeS-ZnS and Cu2S-PbS-ZnS Ternary

The use of liquid copper as a medium for zinc extraction has been used in the Warner Process as a method of processing zinc-lead sulphide ore The recovery of zinc metal is based on the reaction: ZnS(s) + 2Cu(l) = Zn(g) + Cu2S(l) In this method, thermodynamic and phase equilibria investigations of the Cu2S-FeS-ZnS

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What is the best method for sulfide copper leaching? - ResearchGate

Cement copper is extracted from leachete with sulphuric acid using scrap iron as Iron replaces Cu The process usually takes time up to 18 days and has been tried in Cyprus Just check the process in the articles Wangzhong Mu 3 years ago Wangzhong Mu McMaster University Based on my experience, CuS could be

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Why is the extraction of copper from pyrite more difficult than

G of formation of Cu2S is greater than that of CS2 and H2S Hence, neither carbon nor hydrogen can reduce Cu2S to Cu metal G of formation of Cu2O is much less than CO2 Therefore, carbon can easily reduce Cu2O to Cu Cu2O + C(s) Cu(s) + CO(g)

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Electrochemistry of Molten Sulfides: Copper Extraction from BaS-Cu2S

Dec 31, 2015 Sulfide-containing ores are the main raw material for copper extraction The conventional chemical principle underlying metal extraction from such ore (smelting) is the selective oxidation of sulfide ions (S2) by oxygen The reaction 1 forms copper metal and sulfur dioxide (SO2) as products, as written here

read more +

Metallurgy of Copper - Applied Chemistry - Lecture Slides - Docsity

Dec 31, 2013 FeO + SiO2 FeSiO3 Cu2O + FeS Cu2S + FeO FeSiO3 (slag) floats over the molten matte of copper docsity com BESSEMERIZATION Copper metal is extracted from molten matte through bessemerization The matte is introduced in to Bessemer converter which uphold by tuyers The air is blown

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Cu Leaching Using Regenerated Ferric Sulphate - SGS

Secondary copper minerals such as chalcocite (Cu2S) and covellite (CuS) are known to dissolve in acidic ferric Cu2S + 2 Fe2(SO4)3 2 CuSO4 + 4 FeSO4 Table I: Chemical Analyses of the Samples Tested TEST # TEMP (ºC) DURATION (HRS) INITIAL FE3+ (g/L) ACID ADDED (kg/t) CU EXTRACTED ( ) 1 80

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List of copper ores - Wikipedia

Following is a list of minerals that serve as copper ores in the copper mining process: Name, Formula, Copper when pure Min chalcopyrite.jpg Chalcopyrite CuFeS2 34 5 Chalcocite.jpg · Chalcocite · Cu2S 79 8 Covellite-USA.jpg · Covellite · CuS 66 5 Bornite.jpg · Bornite 2Cu2S·CuS·FeS 63 3 Tetraedrite.jpg

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Extraction Of Copper Mining, Concentration, Smelting Chemistry

Jan 11, 2018 The copper extracted from this process is mixed with the slag and is called Matte Copper due to its texture and appearance This mainly consists of Cu2S which is reduced to pure metal by blasting Matte Copper with air The sulphur dioxide escapes the copper and this causes bubbles to appear and burst

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Sources of Copper Ore Copper Development Association of South

Sulfur dioxide gas, for example, is captured and turned into sulfuric acid which is then used in the extraction process Mining Dissolved copper from deep underground cools to form the primary orebody To a large extent, copper oxide and sulfides are naturally separated in nature Chalcocite Cu2S; Covellite CuS

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Blast Furnace For The Extraction Of Copper - YouTube

May 3, 2010 Follow us at: https://plus google com/+tutorvista/ Check us out at Blast Furnace For The

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Cu Leaching Using Regenerated Ferric Sulphate

Secondary copper minerals such as chalcocite (Cu2S) and covellite (CuS) are known to dissolve in acidic ferric Cu2S + 2 Fe2(SO4)3 2 CuSO4 + 4 FeSO4 Table I: Chemical Analyses of the Samples Tested TEST # TEMP (ºC) DURATION (HRS) INITIAL FE3+ (g/L) ACID ADDED (kg/t) CU EXTRACTED ( ) 1 80

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METALLURGY OF COPPER-EXTRACTION OF COPPER-BLISTER

METALLURGY OF COPPER IMPORTANT ORES OF COPPER Copper pyrite or chalcopyrite (CuFeS2) Chalocite (Cu2S) or copper glance Malachite green CuCO3 Cu(OH)2 Azurite blue 2CuCO3 Cu(OH)2 Bornite (3Cu2S Fe2S3) or peacock ore Melaconite (CuO) etc EXTRACTION OF

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thermodynamic properties of cuprous sulphide - RSC Publishing

The Nuffield Research Group in Extraction Metallurgy, Royal School of Mines, London, S W aiid Hz + H2S + Cu + (Cu2S + Na2S) in the temperature range 527" C to 1152" C The results have been used for Analyses of the copper and the Cu2S after all the equilibrium measurements had been made on the Cu + Cu2S

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Extraction Of Copper Mining, Concentration, Smelting Chemistry

Jan 11, 2018 The copper extracted from this process is mixed with the slag and is called Matte Copper due to its texture and appearance This mainly consists of Cu2S which is reduced to pure metal by blasting Matte Copper with air The sulphur dioxide escapes the copper and this causes bubbles to appear and burst

read more +