Copper Sulphide Leaching Process

  • Optimization of parameters affecting recovery of copper

    In this work, the bioleaching process for the extraction of copper from low-grade sulfide ores was evaluated in a sample taken from Sarcheshmeh Copper Mine. The aim of this work was to evaluate the parameters affecting the recovery of copper from low-grade sulfide ores such as temperature, pH, and bacterial population during bioleaching. The copper content of the sample was 0.25%, and about 65

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  • Mining and Extraction: Oxide Ores - processes for

    The process used to treat sulfide copper ores begins at the mine site, where the copper-bearing minerals are physically separated from the rest of the rock. The flow diagram below shows how the percentage of copper increases as the ore is refined, first physically by froth flotation, then chemically by smelting and finally electrolytic refining.

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  • Leaching of Primary Copper Sulfide Ore in Chloride-Ferrous

    Actually, the current heap leaching process at mining companies involves a curing stage with the addition of 12 kg of sulfuric acid per ton of ore and a determined amount of Intermediate Pregnant

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  • Acid Leaching - Copper Ore Treatment Method

    Metallurgical ContentAcid Leaching Process FlowsheetCHEMISTRY OF COPPER DISSOLUTIONPREPARATION OF THE COPPER ORESTORAGE AND FEEDING THE ORECOPPER LEACHINGCHARGING THE TANKSCOPPER PRECIPITATIONACID SUPPLYPRODUCTION OF SULPHURIC ACID The treatment of copper ores, both oxides and sulfides by means of flotation, hydrometallurgy or other processes

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  • Leaching of Primary Copper Sulfide Ore in Chloride-Ferrous

    Actually, the current heap leaching process at mining companies involves a curing stage with the addition of 12 kg of sulfuric acid per ton of ore and a determined amount of Intermediate Pregnant

    Get Price
  • Leaching of Copper Sulphides - SAIMM

    Three copper sulphide leaching and refining processes are discussed: total pressure oxidation, ferric sulphate leaching and copper chloride leaching. Ferric sulphate leaching and copper chloride leaching are carried out at atmospheric pressure while total pressure oxidation takes place at

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  • (PDF) Leaching of Copper Sulphides - ResearchGate

    Three copper sulphide leaching and refining processes are d iscussed: total pressure oxidation, ferric sulphate leaching and copper chloride leaching. Ferric sulphate leaching and copper ch loride

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  • 2.1 Hydrometallurgy

    2.3 Sulphide minerals containing nickel, copper and cobalt 2.4 Familiar extracting and refining processes for nickel sulphides 2.5 Fundamentals of sulphide leaching 2.6 Previous investigation on nickel, copper and cobalt sulphide leachinig 2:7 Moss spectroscopy 2.1 Hydrometallurgy LITERATURE SURVEY Hydrometallurgy will have an increasing role to play in the future regarding

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  • A BACTERIAL HEAP LEACHING APPROACH FOR THE TREATMENT

    Copper is primarily produced by smelting and refining (80% of worldwide production), followed by oxide heap leaching (13%), secondary copper sulphide heap leaching (5%), and other hydrometallurgical routes such as concentrate pressure leaching and bacterial leaching.

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  • Copper leaching from primary sulfides: Options

    The Mt. Gordon copper process and the Sepon copper process both use autoclave processes in the overall metallurgical circuit. In the Mt. Gordon circuit, the autoclave was used to leach copper while at Sepon the autoclave is used to produce acid and ferric sulfate to meet the requirements of an atmospheric leach.

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  • Copper Sulfide - an overview | ScienceDirect Topics

    The leaching of copper sulfide and copper oxide ores entails partial dissolution to cupric sulfate with sulfuric acid and iron sulfate. The presence of pyrites in many ore deposits, and its reaction with water and oxygen to form iron sulfate and sulfuric acid, creates an important source of acid.

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  • Copper Mining and Extraction Sulfide Ores

    The ore is treated with dilute sulfuric acid. This trickles slowly through the ore dissolving copper to form copper sulfate. The copper is recovered by electrolytic refining. Advantages of this process are: See for further information on the leaching process.

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  • First Chalcopyrite Copper Concentrate Leaching using

    the region and wanted to prove up the concept of sulphide copper leaching at a commercial scale using the Albion Process TM. A very cheap retrofit was undertaken on the existing oxide leach circuit and then fed a predominantly chalcopyrite/bornite concentrate (28- 30% Cu). After a very short commissioning stage of around ~6 weeks, it achieved recoveries in excesses of 99% out of the leach

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  • First Chalcopyrite Copper Concentrate Leaching using

    the region and wanted to prove up the concept of sulphide copper leaching at a commercial scale using the Albion Process TM. A very cheap retrofit was undertaken on the existing oxide leach circuit and then fed a predominantly chalcopyrite/bornite concentrate (28- 30% Cu). After a very short commissioning stage of around ~6 weeks, it achieved recoveries in excesses of 99% out of the leach

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  • What is the best method for sulfide copper

    Copper sulphides normally concentrates obtained by flotation, were leached with acidic ferric chloride solutions at temperatures above 90 o C maintaining molar ratio for the time varying from 6 to

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  • Copper leaching from primary sulfides: Options

    The Mt. Gordon copper process and the Sepon copper process both use autoclave processes in the overall metallurgical circuit. In the Mt. Gordon circuit, the autoclave was used to leach copper while at Sepon the autoclave is used to produce acid and ferric sulfate to meet the requirements of an atmospheric leach.

    Get Price
  • Chloride heap leaching - BHP Billiton SA Limited

    The invention provides a method of recovering copper from a material, in a heap, that contains a copper sulphide mineral, which includes the steps of leaching the material in an acidic chloride or a mixed chloride/sulphate solution in the presence of dissolved oxygen, maintaining the mineral's surface potential below 600 mV (vs. SHE) to cause dissolution of the copper sulphide, and recovering copper from the

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  • The selective leaching of copper from a gold–copper

    (40–60 °C), as patented by the authors, or using a cyanidation process. Copper selective leaching will reduce the gold losses due to a cementa-tion mechanism of gold in the presence of metallic copper as all of the metallic copper will dissolve in the pre-leaching stage. Nguyen et al. (1997a, 1997b) found that, at ambient conditions and pH 11, all gold in a solution containing 1000 mg/L

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  • Heap leaching - Wikipedia

    Both oxide and sulfide ores can be leached, though the leach cycles are much different and sulfide leaching requires a bacterial, or bio-leach, component. In 2011 leaching, both heap leaching and in-situ leaching, produced 3.4 million metric tons of copper, 22 percent of world production.

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  • PRESSURE LEACHING - RPMGlobal

    Under medium temperature pressure leaching, at least some of the sulfur is converted to elemental sulfur (So). As temperature is increased and acid is optimized, copper extraction increases and a greater percentage of the sulfur is converted to acid.

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  • Acid Leaching - Copper Ore Treatment Method

    Metallurgical ContentAcid Leaching Process FlowsheetCHEMISTRY OF COPPER DISSOLUTIONPREPARATION OF THE COPPER ORESTORAGE AND FEEDING THE ORECOPPER LEACHINGCHARGING THE TANKSCOPPER PRECIPITATIONACID SUPPLYPRODUCTION OF SULPHURIC ACID The treatment of copper ores, both oxides and sulfides by means of flotation, hydrometallurgy or other processes

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  • Copper extraction - Wikipedia

    In the FL ROL process, a simple way has been found to leach copper sulphide concentrates, with chalcopyrite as the predominant copper-bearing mineral, at 85 to 95°C and under atmospheric pressure.

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  • Copper ore leaching processing - agnqtech.com

    The coarser ore goes to the heap leach, where the copper is subjected to a dilute sulfuric acid solution to dissolve the copper. Then the leach solution containing the dissolved copper is subjected to a process called solvent extraction (SX).

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  • WO2007042604A1 - A method for leaching

    The invention relates to a method for the sulphate-based leaching of metal sulphide minerals, such as chalcopyrite, CuFeS2, containing ore in atmospheric conditions. It is beneficial for the leaching of metal sulphides that the sulphide to be leached is treated before leaching or at the beginning of leaching with a sulphide salt that is more noble than the sulphide or the components it includes.

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