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copper extraction from sulphide ores by chloride

The cuprex metal extraction process Recovering copperCited by 94

The cuprex metal extraction process Recovering copper

Up to10%cash back· The Cuprex metal extraction process produces cathodegrade copper using a hydrometallurgical process based on chloride leaching of sulfide ore concentrates. The process incorporates several novel steps to overcome the major problems associated with earlier chloridebased processes, including mild leaching conditions using ferric chloride as leachant and solvent extraction of copper

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Hydrometallurgical method of extraction of copper from

Hydrometallurgical method of extraction of copper from

1. A method for extraction of copper from sulphide ores or concentrates by leaching the ore or concentrates by means of iron (III) chloride and copper (II) chloride containing leach solution, characterized in that the leaching process is regulated in order to keep the redox potential between 430 mV and 460 mV whereby iron (III) chloride is reduced to iron (II) chloride while copper (II

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Chloride Leaching Sulfide Concentrates

Chloride Leaching Sulfide Concentrates

Aug 13, 2018· Recent work has dealt with the understanding of chloride extraction thermodynamics by modelling the behavior of metal chloride complexes. BHAS initially developed a chloride/sulfate leach for processing a copper sulfide byproduct from lead smelting. A 5 k ton per year copper production plant is being installed to handle the copper/lead matte.

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Process Development Alaska

Process Development Alaska

the sulfide ore and the recovery of its valuable metals. Nerco has provided funding on an annual basis. Information contained in this publication is a result of this research. Within the research program, complex sulfide ores are treated by ferric chloride leaching to dissolve zinc, lead, copper and silver.

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Leaching of Primary Copper Sulfide Ore in ChlorideFerrous

Leaching of Primary Copper Sulfide Ore in ChlorideFerrous

copper extraction, 50.23%, was achieved at 32.9 C with the addition of 0.6 kg of H 2SO4 per ton of ore, 0.525 kg of NaCl per ton of ore, and 0.5 kg of FeSO4 per ton of ore. In respect to copper

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The method of selection, extraction and recovery of nickel

The method of selection, extraction and recovery of nickel

The method of selection, extraction and recovery of nickel, cobalt and copper from sulphide flotation concentrate, stimulated by chlorine, by oxidative leaching with sulfuric acid under pressure C22B3/08

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LEACHING OF LOWGRADE COPPER ORES A CASE STUDY

LEACHING OF LOWGRADE COPPER ORES A CASE STUDY

Key words lowgrade ores; copper minerals; column leaching. 1. Introduction The highest quantities of copper, lead and zinc in the world are obtained by sulphide ore treatment. The reserves of highgrade ores from which the extraction of nonferrous, rare and noble metals is technologically and economically feasible are

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Leaching of Primary Copper Sulfide Ore in ChlorideCited by 7

Leaching of Primary Copper Sulfide Ore in Chloride

Copper extraction from primary copper sulfide ore from a typical porphyry copper deposit from Antofagasta, Chile, was investigated after leaching with a chlorideferrous media at two temperatures. The study focused on whether this chemical leaching system could be applied at an industrial scale. Leaching tests were conducted in columns loaded with approximately 50 kg of agglomerated ore; the

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Process for recovering precious metals from sulfide ores

Process for recovering precious metals from sulfide ores

Feb 28, 1990· 23. A process for extracting precious metals from sulfide ore, comprising contacting an ore, which contains elemental and sulfidic metals selected from the group of platinum group metals, gold, silver, iron, or copper, with salt, which contains greater than 60% potassium chloride, in the substantial absence of added promoter metal chlorides to produce an ore/salt mixture having a salt to

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COPPER HYDROMETALLURGY AND EXTRACTION

COPPER HYDROMETALLURGY AND EXTRACTION

By using chloride solutions, copper extraction with hydroxyoximes is easier to accomplish. It takes place at a lower pH and is more pronounced than from sulphate media. In chloride systems, extraction isotherms are steeper than in sulphate systems and even at pH 1 a relatively high loading of

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Copper Mining and Processing Processing Copper Ores

Copper Mining and Processing Processing Copper Ores

Copper processing is a complicated process that begins with mining of the ore (less than 1% copper) and ends with sheets of 99.99% pure copper called cathodes, which will ultimately be made into products for everyday use.The most common types of ore, copper oxide and copper sulfide, undergo two different processes, hydrometallurgy and pyrometallurgy, respectively, due to the different

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Biologically Assisted Copper Secondary Sulfide Ore

Biologically Assisted Copper Secondary Sulfide Ore

Copper recovery in solution, along with a high redox potential, was established faster in the mesophilic column but leveled off quickly over time. Copper extraction showed that the 6 g/l chloride column has the highest metallurgical performance (83% CuT) with 4 extra points of copper recovery over the 1.5 g/L and 3 g/l Cl

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Primary copper sulfides bioleaching vs. chloride leachingCited by 18

Primary copper sulfides bioleaching vs. chloride leaching

Mar 01, 2017· Primary copper sulfides are the most economically relevant due to their abundance. Therefore, several technologies have been developed in order to achieve an efficient copper extraction from these types of copper sulfides. Among these developments, the hydrometallurgical options of bioleaching as well as chemical chloride leaching are prevailing for copper sulfides due to their good results at lab, pilot and

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Important Sulphite Minerals Of Copper

Important Sulphite Minerals Of Copper

The minerals from the copper mines of Arizona, USA specifically the great mines of Bisbee, Tiger, Tombstone, Morenci, Mammoth and Ajo, Arizona, are the result of the supergene enrichment and hydrothermal alteration of a porphyry copper sulfide intrusion.Copper extraction from primary copper sulfide ore from a typical porphyry copper

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Important Sulphite Minerals Of Copper

Important Sulphite Minerals Of Copper

The minerals from the copper mines of Arizona, USA specifically the great mines of Bisbee, Tiger, Tombstone, Morenci, Mammoth and Ajo, Arizona, are the result of the supergene enrichment and hydrothermal alteration of a porphyry copper sulfide intrusion.Copper extraction from primary copper sulfide ore

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Leaching of Primary Copper Sulfide Ore in Chloride

Leaching of Primary Copper Sulfide Ore in Chloride

copper extraction, 50.23%, was achieved at 32.9 C with the addition of 0.6 kg of H 2SO4 per ton of ore, 0.525 kg of NaCl per ton of ore, and 0.5 kg of FeSO4 per ton of ore. In respect to copper

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Explain the steps for extraction of copper from its

Explain the steps for extraction of copper from its

Oct 29, 2017· 484 views. asked Oct 29, 2017 in Class X Science by priya12 (12,165 points) Explain the steps for extraction of copper from its sulphide ore. Write the balanced equations involved in the process.

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 Leaching of Primary Copper Sulfide Ore in ChlorideEstimated Reading Time 5 mins

Leaching of Primary Copper Sulfide Ore in Chloride

Jul 25, 2018· Copper extraction from primary copper sulfide ore from a typical porphyry copper deposit from Antofagasta, Chile, was investigated after leaching with a chlorideferrous media at two temperatures.

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Liquidliquid extraction of copper (II) from chloride

Liquidliquid extraction of copper (II) from chloride

The extraction of 0.0011 M copper(II) with 0.05 M to 1.0 M Cyanex 921 in kerosene from 5 M HCl solution was carried out. The percentage extraction of copper increased with increasing extractant concentration. At 0.05 M, the extraction of copper was only 23.05 per cent, whereas it rose

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Extraction Of Silver Mineral Processing Metallurgy

Extraction Of Silver Mineral Processing Metallurgy

Jan 10, 2017· The roasted ore contains chloride of silver, which does not dissolve in water, but generally there are also base chlorides in it, as the chlorides of copper, zinc, lead, iron, antimony, etc., which are soluble. It is the purpose of the first leaching to extract these base metals by means of hot water.

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Solvometallurgical process for extraction of copper from

Solvometallurgical process for extraction of copper from

Abstract. 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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Leaching of Copper Sulphides SAIMMFile Size 274KB

Leaching of Copper Sulphides SAIMM

9 rows· copper sulphide leaching options as alternatives to the more conventional pyrometallurgical

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Leaching of Primary Copper Sulfide Ore in ChlorideCited by 7

Leaching of Primary Copper Sulfide Ore in Chloride

Abstract. Copper extraction from primary copper sulfide ore from a typical porphyry copper deposit from Antofagasta, Chile, was investigated after leaching with a chlorideferrous media at two temperatures. The study focused on whether this chemical leaching system could be applied at an industrial scale.

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In the extraction of copper from its sulphide ore, the

In the extraction of copper from its sulphide ore, the

In the extraction of copper from its sulphide ore, when ore is subjected to roasting, some of it is oxidised to Cu 2 O which reacts with the remaining Cu 2 S (sulphide ore) to give copper metal. Cu 2 S 2Cu 2 O 6Cu SO 2 In this process, Cu 2 S behaves as reducing agent.

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Chloride Leaching Sulfide Concentrates

Chloride Leaching Sulfide Concentrates

Aug 13, 2018· Recent work has dealt with the understanding of chloride extraction thermodynamics by modelling the behavior of metal chloride complexes. BHAS initially developed a chloride/sulfate leach for processing a copper sulfide byproduct from lead smelting. A 5 k ton per year copper production plant is being installed to handle the copper/lead matte.

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Direct extraction of copper from copper sulfide minerals

Direct extraction of copper from copper sulfide minerals

Sulfide in the mineral is oxidised to sulfate without the generation of SO2 or H2S. The best selective recovery of copper (99 at%) from chalcopyrite was obtained with a mixed DES of 20 wt% choline chlorideoxalic acid and 80 wt% choline chlorideethylene glycol.

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A review of chloride assisted copper sulfide leaching by

A review of chloride assisted copper sulfide leaching by

A review of chloride assisted copper sulfide leaching by oxygenated sulfuric acid and mechanistic considerations G. Senanayake by conventional solvent extraction, stripping as sulfate, electrowinning, and iron leaching of copper sulfide ores/concentrates and mechanistic considerations, with

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A Review on Novel Techniques for Chalcopyrite Ore Processing

A Review on Novel Techniques for Chalcopyrite Ore Processing

Jan 01, 2012· 1.2. Chalcopyrite Ore Production The sulfide ore minerals including chalcopyrite (CuFeS 2), sphalerite (ZnS), galena (PbS) provide the major sources of the worlds base metals (Cu, Zn, Pb, respectively), whereas pyrite is virtually ubiquitous as a metalliferous mineral in sulfide ore deposits (Crang and Vanghan, 1994).The first step in recovering metal from their mineral is that of finding

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Primary copper sulfides bioleaching vs. chloride leaching

Primary copper sulfides bioleaching vs. chloride leaching

In this work, we have compared bioleaching and chemical chloride leaching technologies (including sulfuric acidsodium chloride ore pretreatment) for a mainly primary copper sulfide ore. This comparative analysis showed first that bioleaching and chemical chloride leaching work at completely different range of redox potential as expected.

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Accelerating Copper Leaching from Sulfide Ores in Acid

Accelerating Copper Leaching from Sulfide Ores in Acid

A higher temperature (45 #176;C) and a higher chloride concentration (40 g/L) negatively affected the extraction. The pretreatment stage had favorable effects, in terms of accelerating copper dissolution and improving leaching of copper sulfide ore in acidnitratechloride media.

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copper extraction from sulphide ores by chloride

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