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Extraction of copper from chalcopyrite concentrates

A low temperature chlorination selective oxidation followed by aqueous chloride leaching and SX EW for producing electrolytic copper elemental sulfur and ferric oxide was investigated for hydrometallurgical processing of a chalcopyrite concentrate In this article the selective oxidation phase of the process is described The selective oxidation requires a temperature well above the CuCl

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Solvometallurgical process for extraction of copper from

2020 2 10   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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PDF Improving of copper extraction from chalcopyrite by

Copper Cu extraction rate from chalcopyrite CuFeS2 is normally slowed down by the passivation layers formed on CuFeS2 surface Cost effective CuFeS2 extraction strategies are therefore

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Extraction of copper from bacterial leach liquor of a low

2012 6 1   Highlights Selective extraction of Copper by LIX 984N C from Low grade Chalcopyrite Test Heap Cu extraction was quantitative in 2 stages by 1 5 LIX 984N C at A O 1 2 pH e 1 85 Stripping CCS study was carried out at with 180 g/L of H 2 SO 4 in 2 stages A O 1 4 The final strip solution contains 3 6g/L confirming Cu enrichment up to 8 folds

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Extraction of copper from chalcopyrite with potassium

2021 9 7   Extraction of copper from chalcopyrite with potassium dichromate in 1 ethyl 3 methylimidazolium hydrogen sulfate ionic liquid aqueous Minerals Engineering IF 4 765 Pub Date 2021 09 06 Junxian Hu Futing Zi Guocai Tian

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BACTERIAL LEACHING OF COPPER FROM LOW GRADE …

Keywords Bacterial 1eaching chalcopyrite ore copper INTRODUCTION IN certain parts of the world large quantities of low grade chalcopyrite ores containing 0 2 to 0 8 per cent copper occur The customary chemical and other methods of extraction of copper from such ores are not econo­

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Extraction Of Copper Mining Concentration Smelting

2021 11 10   Copper Mining The commonest ore used in the extraction of copper is Chalcopyrite CuFeS 2 also known as Copper Pyrites and other such sulphides The percentage of copper in the actual ore is too low for direct extraction of copper to be …

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inorganic chemistry

2021 8 26   Chalcopyrite ce CuFeS2 is the most common copper bearing mineral on earth Approximately 70 of the world's copper reserves are contained in the mineral chalcopyrite but also the most stable minerals because of its structural configuration face centered tetragonal lattice Ref 1 At present there are basically two main methods

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PDF Separation of Copper from Chalcopyrite – …

The extraction and purification of copper by dithizone in kerosene from an aqueous chloride chalcopyrite leach liquor containing 934 44 mg/L Cu 2326 73 mg/L Fe 92 14 mg/L Mn 0 65 mg/L Mg 0 22

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Solvometallurgical process for extraction of copper from

Extraction of copper from sufidic ores either by pyrometallurgy or hydrometallurgy has various limit ations 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 oxi

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Extraction of copper from copper bearing sulfide ores

2017 6 1   The extraction of copper from chalcopyrite using hydrogen peroxide H2O2 ferric sulphate Fe2 SO4 3 potassium permanganate KMnO4 and potassium dichromate K2Cr2O7 oxidizing agents in acid solutions was studied using the 63 90 µm particle size fraction of chalcopyrite The effect of temperature ranging

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BACTERIAL LEACHING OF COPPER FROM LOW GRADE …

Keywords Bacterial 1eaching chalcopyrite ore copper INTRODUCTION IN certain parts of the world large quantities of low grade chalcopyrite ores containing 0 2 to 0 8 per cent copper occur The customary chemical and other methods of extraction of copper from such ores are not econo­

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COPPER SOLVENT EXTRACTION FROM CHALCOPYRITE …

2006 11 28   Copper solvent extraction from chalcopyrite concentrate J Min Met 42 B 2006 7 3 2 Re extraction of copper from loaded organic phases Copper stripping was studied on organic phase Lix 984 20 v/v charged by contact with the aqueous phase at pH of 1 7 Øo/Øa 1 1 15 minutes of

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extraction of copper from chalcopyrite

Copper leaching from chalcopyrite concentrates SpringerLink For more than 30 years a significant number of processes have been developed to leach copper from chalcopyrite concentrates These processes recover copper via hydrometallurgical leaching of the copper component of chalcopyrite concentrates followed by solvent extraction and electrowinning A number of demonstration plant …

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Extraction of copper from chalcopyrite concentrates

2000 11 1   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 article the chlorination phase of the process is

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Improving of copper extraction from chalcopyrite by using

2018 5 5   A nitric acid route in combination with solvent extraction for hydrometallurgical treatment of chalcopyrite C // Extractive Metallurgy of Copper USA New York AIME 1976 2 …

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COPPER SOLVENT EXTRACTION FROM CHALCOPYRITE …

2006 11 28   Copper solvent extraction from chalcopyrite concentrate J Min Met 42 B 2006 7 3 2 Re extraction of copper from loaded organic phases Copper stripping was studied on organic phase Lix 984 20 v/v charged by contact with the aqueous phase at pH of 1 7 Øo/Øa 1 1 15 minutes of

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Copper extraction from chalcopyrite Comparison of three

2016 1 1   Three oxidants hypochlorous acid chlorate and nitrate were assessed for their ability to oxidise chalcopyrite CuFeS 2 Hypochlorous acid was the most aggressive oxidant trialled with copper extraction reaching a plateau after 1–5 h Extraction in this system was complete at room temperature when reagent concentrations of 0 3–0 4 M were supplied

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PDF Copper solvent extraction from chalcopyrite

Copper is present in the solid product as chalcopyrite and its amount is 28 1 by weight Leaching stage allows to dissolve more than 90 of copper witch is accompanied in the same averages by

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Comparison of various extractants for recovery of …

2021 11 10   copper using all the three extractants The copper extraction of 100 was obtained using 2 5 LIX984N a higher amount 7 5 of CP 150 and Kelex100 was required to reach a 100 copper extraction 3 2 Kinetics of copper extraction The effect of contact time on copper extraction from ammoniacal leach liquor was studied Figure 2

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Chapter 6 Copper Production Technology

1996 11 20   Pyrite chalcopyrite etc Copper ore other minerals waste rock gangue Copper minerals iron and other metallic pyrites byproducts and gangue cementation or solvent extraction Remove copper from pregnant Ieachate and remove some impurities Remove copper from pregnantIeachate and

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Extraction of copper from chalcopyrite concentrates

2000 11 1   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 article the chlorination phase of the process is

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EXTRACTION OF COPPER

2018 1 28   COPPER Copper pyrite or chalcopyrite CuFeS 2 Chalocite Cu 2 S or copper glance Malachite green CuCO 3 Cu OH 2 Azurite blue 2CuCO 3 Cu OH 2 Bornite 3Cu 2 S Fe2S 3 or peacock ore Melaconite CuO etc EXTRACTION OF COPPER FROM SULPHIDE ORE Large amount of copper are obtained from copper pyrite CuFeS2 by smelting Ores

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PDF Solvometallurgical process for extraction of copper

2019 11 5   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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Extracting Copper From Chalcopyrite In South Africa

Retreatability Analysis Of The Musina Copper Mine Tailings In In Most Of These Operations Extraction Of Copper 90 Was Achieved By Bioleaching The Primary Ore Is Chalcopyrite With Quartz And Albite Gangue 40 The Geological Society Of South Africa Johannesburg 2 1673

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COPPER SOLVENT EXTRACTION FROM CHALCOPYRITE …

2006 11 28   Copper solvent extraction from chalcopyrite concentrate J Min Met 42 B 2006 7 3 2 Re extraction of copper from loaded organic phases Copper stripping was studied on organic phase Lix 984 20 v/v charged by contact with the aqueous phase at pH of 1 7 Øo/Øa 1 1 15 minutes of

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Comparison of various extractants for recovery of …

2021 11 10   copper using all the three extractants The copper extraction of 100 was obtained using 2 5 LIX984N a higher amount 7 5 of CP 150 and Kelex100 was required to reach a 100 copper extraction 3 2 Kinetics of copper extraction The effect of contact time on copper extraction from ammoniacal leach liquor was studied Figure 2

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Extraction of copper from copper bearing sulfide ores

2017 6 1   The extraction of copper from chalcopyrite using hydrogen peroxide H2O2 ferric sulphate Fe2 SO4 3 potassium permanganate KMnO4 and potassium dichromate K2Cr2O7 oxidizing agents in acid solutions was studied using the 63 90 µm particle size fraction of chalcopyrite The effect of temperature ranging

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A conceptual process for copper extraction from

2017 7 1   The copper extraction and pH changes are shown in Fig 9 It can be seen that the rate of initial copper extraction after pre oxidation is quite rapid after which there is a change in rate due to iron hydroxide precipitate on the chalcopyrite surface Download Download high res image 108KB Download Download full size image Fig 9

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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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