Leaching of Primary Copper Sulfide Ore in Chloride

Leaching tests were conducted in columns loaded with approximately 50 kg of agglomerated ore the ore was first cured for 14 days and then leached for 90 days The highest copper extraction 50 23% was achieved at 32 9 C with the addition of 0 6 kg of H2 SO4 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 extraction the most effective

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Heap Leaching Of Chromium Ore

Jogmec has been carrying out the study on primary copper sulfide ores leaching for recovering copper economically and efficiently by heap leaching In our study we have been using the primary copper sulfide ore produced in an iocg deposit The ore is characterized by high iron content and high acid consumption in leaching For the optimization of the leaching the conditions such as ore size

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Copper ore processing technology development and

Hydrometallurgical process is the process of extracting copper from pregnant liquid by leaching copper from ore or concentrate with solvent The main processes include leaching solvent extraction electrodeposition and so on At present leaching methods mainly include heap leaching underground leaching stirring leaching and biological leaching

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US3777004A

US3777004A US00141960A US3777004DA US3777004A US 3777004 A US3777004 A US 3777004A US 00141960 A US00141960 A US 00141960A US 3777004D A US3777004D A US 3777004DA US 3777004 A US3777004 A US 3777004A Authority US United States Prior art keywords ore leaching process pile ores Prior art date 1971-05-10 Legal status (The legal status is an assumption and is not

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Process and Economic Considerations in Copper Metallurgy

Heap Leaching • Used extensively in copper • South Western USA and Chile • Oxide ores using a simple acid reaction • More recently applied to sulphide ores • Application of heap leaching and SX/EW is widely regarded as reviving the US copper industry • Huge potential for application to copper sulphides • Cost advantages

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A fresh approach to sulfide ores

The first step in the discovery process was a comprehensive review of decades of research on copper sulfide leaching In doing so the team detected a pattern that suggested that surface abrasion alone could have a significant impact on a mineral's leaching behaviour

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HyperLeach Process Shows Promise for Leach

It also opens up the possibility of heap leaching some sulphide ores notably chalcopyrite the main copper ore " HyperLeach is a hydrometallurgical process developed by MetaLeach for the extraction of metals especially copper zinc nickel cobalt molybdenum and rhenium from sulphide ore deposits and concentrates The process utilizes

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Copper ore leaching processing

Copper ore leaching processing The above flowsheet shows a basic copper mine process from mine to metal There are two distinct types of copper ore the sulfide ore and the oxide ore The sulfide ores are beneficiated in flotation cells while the oxide ores are generally leached First the copper ore from a open pit mine is blasted loaded and transported to the primary crushers Then the

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Bacterial consortium for copper extraction from sulphide

copper from low-grade ores requires low-cost processing methods such as in situ dump and heap leaching Bacte-rially assisted heap leaching of low-grade copper sulphides is a developing technology that has been applied success-fully for the extraction of copper from secondary sulphide minerals such as chalcocite at a number of operations

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Heap Leaching Of Chromium Ore

Jogmec has been carrying out the study on primary copper sulfide ores leaching for recovering copper economically and efficiently by heap leaching In our study we have been using the primary copper sulfide ore produced in an iocg deposit The ore is characterized by high iron content and high acid consumption in leaching For the optimization of the leaching the conditions such as ore size

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The method of underground leaching copper sulfide ores

The method of underground leaching copper sulfide ores including leaching in the presence of sulfuric acid vodorostvorima stock solution by adding sulfuric acid and its direction on leaching characterized in that the leaching of ores is carried out in the areas of collapse and(or) in the surrounding fractured zones flooded mines for conditioning the mother liquor is conducted additionally

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Bacterial consortium for copper extraction from sulphide

The economic extraction of copper from low-grade ores requires low-cost processing methods such as in situ dump and heap leaching Bacterially assisted heap leaching of low-grade copper sulphides is a developing technology that has been applied successfully for the extraction of copper from secondary sulphide minerals such as chalcocite at a number of operations worldwide However heap

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Improvements in Copper heap leaching by use of wetting agents

Improvements in Copper heap leaching by use of wetting agents describes the leaching process of an idealized oxide copper ore particle [1] This particle reacts from the surface inwards During the continuous reaction a leached rim is formed composed mainly of gangue The rim encloses a shrinking unleached core so that reagents and dissolved reac-tion products must diffuse through the

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Heap Leaching Mining Techniques Metals Mining Copper

Heap Leaching Heap leaching is an industrial mining method to dig out precious metals and copper compounds from ore Process of heap leaching The mined ore is crushed into tiny chunks and heaped on an impermeable plastic and/or clay lined leach pad where it may be irrigated with a leach solution to melt the valuable metals Sprinklers or

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Application of SART to Heap Leaching of Gold

APPLICATION OF THE SART PROCESS TO HEAP LEACHING OF GOLD-COPPER ORES AT MARICUNGA CHILE KEVAN J R FORD AND ROBERT D HENDERSON –– KINROSS GOLD CORPORATION AND DR CHRIS A FLEMING –– SGS ABSTRACT Kinross Gold Corporation's Maricunga mine in Chile presents an ideal opportunity to apply the SART process to a heap leach

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Numerical Analysis on Flow and Solute Transmission during

The chemical content analysis of ore sample is 0 20% sulphide copper 0 17% sulphide copper 0 12% free oxide copper and 0 072% combined oxide copper Ore component analysis is conducted by X-Ray Diffractometer M21X and is shown in Table 1

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Problems In Heap Leaching Of Copper Ore

Problems In Heap Leaching Of Copper Ore Copper heap leaching with agglomeration heap leaching relies on a leaching agent moving through a bed of heaped ore to extract the metallic components crushed ore is stacked on a leaching pad and irrigated with the leaching agent the leaching agent chemically reacts with the metal in the ore to dissolve the copper into the solution as

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1 ID 2 1

Heap leaching of low grade complex copper sulphide ore bodies must contend with slow leach kinetics at ambient conditions particularly for chalcopyrite and other copper-containing complex sulphide minerals thus the control of leach reaction chemistry becomes critical in increasing the efficiency of recovery The complex mineralogy of copper sulphide ore deposits which often includes gangue

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Copper ore processing technology development and

Hydrometallurgical process is the process of extracting copper from pregnant liquid by leaching copper from ore or concentrate with solvent The main processes include leaching solvent extraction electrodeposition and so on At present leaching methods mainly include heap leaching underground leaching stirring leaching and biological leaching

Continue Reading

Bacterial consortium for copper extraction from sulphide

The economic extraction of copper from low-grade ores requires low-cost processing methods such as in situ dump and heap leaching Bacterially assisted heap leaching of low-grade copper sulphides is a developing technology that has been applied successfully for the extraction of copper from secondary sulphide minerals such as chalcocite at a number of operations worldwide However heap

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Leaching of Primary Copper Sulfide Ore in Chloride

Leaching of Primary Copper Sulfide Ore in Chloride-Ferrous Media Karina E Salinas 1 Osvaldo Herreros 2 and Cynthia M Torres 3 * 1 Departamento de Ingeniera Qumica y Procesos de Minerales Universidad de Antofagasta Antofagasta 1240000 Chile karinasalinascgmail 2 Departamento Ingeniera de Minas Universidad de Antofagasta Antofagasta 1240000 Chile

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