separation of copper from copper sulphide by leaching process

separation of copper from copper sulphide by leaching process

EP1012351B1  Chloride assisted hydrometallurgical
EP1012351B1 Chloride assisted hydrometallurgical

A process for the extraction of copper from a sulphide ore or concentrate comprises the steps of subjecting the ore or concentrate to pressure oxidation in the presence of oxygen and an acidic solution containing halide and sulphate ions to obtain a resulting pressure oxidation slurry. The slurry is subjected to a liquid/solid separation step to obtain a resulting pressure oxidation filtrate

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seperation of copper from copper sulphide by leaching procecc
seperation of copper from copper sulphide by leaching procecc

running process. Sun at al. [14] performed the copper leaching from low grade copper oxide ore by sulphuric acid, and they have obtained leaching percent of cop per over 90%. Compared with the copper leaching effi ciency of about 35% in the mill running technology the leaching process has achieved a better economic result. Get Price

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Copper Mining and Extraction Sulfide Ores
Copper Mining and Extraction Sulfide Ores

The blister copper produced by this process is 99% pure copper. The name blister copper comes from the fact that this final process produces bubbles of sulfur dioxide on the surface of the copper.

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Copper Sulfide  an overview  ScienceDirect Topics
Copper Sulfide an overview ScienceDirect Topics

All copper sulfides require the presence of Fe 3+ and O 2 as oxidizing agents for leaching to occur. The copper sulfide is oxidized by Fe 3+. The resulting Fe 2+ is reoxidized to Fe 3+ by O 2. The Fe(II)/Fe(III) redox couple acts in a catalytic manner in these reactions (shown for elevatedtemperature reaction conditions where the sulfurcontaining product is sulfate, rather than the elemental sulfur that forms

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extraction of copper from sulphide  ewags
extraction of copper from sulphide ewags

Copper can be extracted from non sulphide ores by a different process involving three separate stages Reaction of the ore (over quite a long time and on a huge scale) with a dilute acid such as dilute sulphuric acid to produce a very dilute copper(II) sulphate solution.

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Copper Mine, Techniques,Ores, Mines, Occurence, Processing
Copper Mine, Techniques,Ores, Mines, Occurence, Processing

Copper process 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.

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Copper Leaching Method  Metallurgist amp; Mineral Processing
Copper Leaching Method Metallurgist amp; Mineral Processing

Copper Leaching Costs. Extraction of copper from suitable ore by leaching methods is generally assumed to cost less than the combined expense of concentration, smelting, and refining, and experimental data tend to confirm this opinion. At the ButteDuluth plant, which is handling in excess of 100 tons of oxidized ore daily,

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copper processing  Definition, History, amp; Facts
copper processing Definition, History, amp; Facts

Copper processing. Copper processing, the extraction of copper from its ores and the preparation of copper metal or chemical compounds for use in various products. In its pure form or as an alloy, copper (Cu) is one of the most important metals in society. The pure metal has a

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Copper Mine, Techniques,Ores, Mines, Occurence, Processing
Copper Mine, Techniques,Ores, Mines, Occurence, Processing

Copper is extracted in large amounts from the Earth's crust by mining of sulphide ores and also oxide ores. The procedure of copper processing involves mining and transporting. Oxide ores are generally processed through hydrometallurgy heap leaching, solvent extraction and electrowinning.

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SART for copper control in cyanide heap leaching  SciELO
SART for copper control in cyanide heap leaching SciELO

cation with addition of soluble sulphide, separation of the resulting copper sulphide precipitate, and addition of lime to reestablish alkalinity prior to returning the solution to the leaching process, recovering both copper and cyanide as valuable products. In principle SART is very simple. Yet some SART plants that have been built may

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US6455019B2  Process for the extraction of copper from a
US6455019B2 Process for the extraction of copper from a

A process for the extraction of copper from a sulphide ore or concentrate comprises the steps of subjecting the ore or concentrate to pressure oxidation in the presence of oxygen and an acidic solution containing halide and sulphate ions to obtain a resulting pressure oxidation slurry. The slurry is subjected to a liquid/solid separation step to obtain a resulting pressure oxidation filtrate

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Leaching of Copper Sulphides  SAIMM
Leaching of Copper Sulphides SAIMM

for copper sulphides. 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 elevated pressures.

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Cobalt extraction
Cobalt extraction

By boiling away the ammonia; copper is precipitated as a sulfide and sent to a smelter. Hydrogen sulfide is added to the autoclave to remove nickel sulfide and copper sulfide which is fed back to the leaching process. Air is then passed through the solution in the autoclave for oxyhydrolysis.

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Copper Sulphide Ore Flotation Process  Xinhai
Copper Sulphide Ore Flotation Process Xinhai

Copper sulfide ore has better floatability than sphalerite, pyrite and another sulphide, so it is more likely to float from the pulp by adsorpting collecting agent. Therefore, flotation process is the main beneficiation method for copper sulfide ore.

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Separation of copper and cobaltnickel sulphide
Separation of copper and cobaltnickel sulphide

Controlled sulphide precipitation using (NH 4) 2 S was examined in this study as a feasible approach for obtaining copper and nickelcobalt sulphide concentrates from liquors originating from leaching nodules in FeSO 4 H 2 SO 4 H 2 O solutions after iron removal. Iron

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The cuprex metal extraction process Recovering copper
The cuprex metal extraction process Recovering copper

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 usinga novel

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copper extraction and purification
copper extraction and purification

Copper can be extracted from nonsulphide ores by a different process involving three separate stages Reaction of the ore (over quite a long time and on a huge scale) with a dilute acid such as dilute sulphuric acid to produce a very dilute copper(II) sulphate solution.

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Acid leaching of oxidesulfide copper ore prior the
Acid leaching of oxidesulfide copper ore prior the

per over 90%. Compared with the copper leaching efficiency of about 35% in the mill running technology the leaching process has achieved a better economic result. In the present study the leaching of oxidesulfide copper ore was considered, and a modification of the existing process was performed by inserting the leach

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Copper Mining and Extraction Oxide Ores
Copper Mining and Extraction Oxide Ores

The process used to treat sulfide copper ores begins at the mine site, where the copperbearing 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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Copper Nickel Sulphide Matte Separation Technique
Copper Nickel Sulphide Matte Separation Technique

Separation of Coppernickel from Duluth Gabbro by a The technique utilizes a twostage bulk sulfide flotation procedure to obtain a copper concentrate that analyzed 25 percent copper and 0.5 percent nickel, and a nickel concentrate that analyzed 10 percent nickel and about 1 percent copper.

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EXTRACTING METALS FROM SULFIDE ORES  Electrochemical
EXTRACTING METALS FROM SULFIDE ORES Electrochemical

Flotation is also used to split copper and nickel sulfides and separate them from iron sulfides and gangue minerals. Cobalt sulfides appear in the nickel concentrate and the cobalt is subsequently recovered. Flotation has developed from the treatment of simple ores to the ever more complex ones that are being found today.

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Copper extraction
Copper extraction

All primary sulfide ores of copper sulfides, and most concentrates of secondary copper sulfides (being chalcocite), are subjected to smelting. Some vat leach or pressure leach processes exist to solubilise chalcocite concentrates and produce copper cathode from the resulting leachate solution, but this is a minor part of the market.

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Acid Leaching  Copper Ore Treatment Method
Acid Leaching Copper Ore Treatment Method

The flowsheet discussed in this study is for treatment of 100 tons per day oxidesulfide copper ore by the leaching process using sulfuric acidferric sulfate solvent. This flowsheet would also be suitable for a larger tonnage by proper sizing of the various units of equipment.

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copper extraction and purification
copper extraction and purification

Extracting copper from other ores. Copper can be extracted from nonsulphide ores by a different process involving three separate stages Reaction of the ore (over quite a long time and on a huge scale) with a dilute acid such as dilute sulphuric acid to produce a very dilute copper(II) sulphate solution.

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How Hydrometallurgy and the SX/EW Process   copper
How Hydrometallurgy and the SX/EW Process copper

The SX/EW Process. Here the copper is extracted away from the aqueous phase leaving behind most of the impurities that were in the leach solution. Since the copper ion is exchanged for hydrogen ion, the aqueous phase is returned to its original acidity and recycled to the leaching step of the process.

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the process of extraction of cu copper
the process of extraction of cu copper

Extraction of Aluminum, Copper, Zinc amp; Iron Study. Extraction of Copper. Chalcopyrite(CuFeS 2) is the commonest copper ore. Copper is mainly extracted from the sulphide ore(Cu 2 S) by the self reduction process.

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Copper and cyanide recovery from barren leach solution at
Copper and cyanide recovery from barren leach solution at

Copper and cyanide recovery from barren leach Secondary copper sulphide minerals such as chalcocite and covellite leach rapidly ore, cyanidation of goldcopper ores results in high cyanide consumptions and difficulty in process control. The gold leaching reaction in cyanide solution follows these electrochemical halfreactions

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Copper beneficiation process  Yantai Jinpeng Mining
Copper beneficiation process Yantai Jinpeng Mining

Copper ore divides into ore sulfide ,ore oxide and mixing ore according to its oxide rate . The main process for copper ore is flotation , for refractory mixed copper ore and refractory oxide ore , normally use hydrometallurgy process .It is a high technological enterprise that integrated research , manufacture, sales and service . The company has multiple subsidiaries such as Mineral

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Innovations in Copper Mineral Processing Technology
Innovations in Copper Mineral Processing Technology

Heavy Medium Separation can be used on some copper ores to improve project economics. Toowong Process has demonstrated that it is an option for removing impurities from dirty copper concentrates. Albion Process has a role in improving overall project economics, by improving recovery of copper from certain more difficult

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

A twostage countercurrent leach process, consisting of an atmospheric leach and a pressure leach, was developed to effectively leach copper from the copperbearing minerals and to generate a

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