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copper sulfide leaching

Leaching of Copper Sulphides SAIMM

Leaching of Copper Sulphides Marc Nicolle,1 Marko Lampi,2 Kari Valkama, 2 and Janne Karonen 1 Outotec (RSA) (Pty) Ltd, Johannesburg, South Africa. 2 Outotec (Finland) Oy, Pori, Finland Corresponding author: [email protected] In the ten years from 2003 to 2013 global mine production of copper has increased by

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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 elevated-temperature reaction conditions where the sulfur-containing product is sulfate, rather than the elemental

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What is the best method for sulfide copper leaching?

One of the important subject in copper sulfide leaching, Ore Characterisation and related method. Bacteria Heap Leaching and Oxidative bacterial heap leaching two methods that apply for low grade

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The bioleaching of sulphide minerals with emphasis on

01-10-2006· The most successful copper heap leaching operations have been those processing copper oxides and secondary copper sulphides ().Chalcocite (Cu 2 S) is the main copper sulphide mineral mined at bioleaching operations. Some of the chalcocite heap operations began as oxide (chemical) leach operations and were converted to bioleach (oxidative) operations by heap aeration

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Copper sulfide Wikipedia

29-07-2002· Copper sulfides describe a family of chemical compounds and minerals with the formula Cu x S y.Both minerals and synthetic materials comprise these compounds. Some copper sulfides are economically important ores.. Prominent copper sulfide minerals include Cu 2 S and CuS ().In the mining industry, the minerals bornite or chalcopyrite, which consist of mixed copper-iron sulfides, are

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Copper Mining and Extraction: Oxide Ores

Most of the copper ores mined today are oxide or sulfide ores. Extraction of sulfide ores is covered in more detail in Copper Mining and Extraction: Sulfide Ores (11–14), but is introduced here because an important by-product of this process is used for the extraction of oxide ores. Pyroprocessing Sulfide Ores Provides Acid for Leaching

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Optimization of parameters affecting recovery of copper

their role in leaching copper sulfide [13]. Sulfide ore bioleaching happens in an acidic environment that often contains a significant concentration of iron(III) ions. Secondary copper sulfides (chalcocite, covellite) are solved easily in the presence of oxidizing agents such as ferric

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Optimization of parameters affecting recovery of copper

their role in leaching copper sulfide [13]. Sulfide ore bioleaching happens in an acidic environment that often contains a significant concentration of iron(III) ions. Secondary copper sulfides (chalcocite, covellite) are solved easily in the presence of oxidizing agents such as ferric

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Copper Mining and Extraction: Oxide Ores

Most of the copper ores mined today are oxide or sulfide ores. Extraction of sulfide ores is covered in more detail in Copper Mining and Extraction: Sulfide Ores (11–14), but is introduced here because an important by-product of this process is used for the extraction of oxide ores. Pyroprocessing Sulfide Ores Provides Acid for Leaching

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Leaching an overview ScienceDirect Topics

Another leaching method is ammonia leaching, which is used for certain copper oxide ores. These methods are called leach-precipitation-flotation and are applied to mixed sulfide ores. There are also leaching techniques involving the precipitation of the metal from organic phases [6].

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Cobalt extraction Wikipedia

Recovery from copper-cobalt sulfide concentrates. The ores are treated by a sulfatizing roast in a fluidized bed furnace to convert copper and cobalt sulfides into soluble sulfates and iron into insoluble hematite.The calcine is subsequently leached with sulfuric acid from the spent copper recovery electrolyte.Oxide concentrates are introduced at this leaching step to maintain the acid balance

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Leaching an overview ScienceDirect Topics

The copper content of the solution varies from less than 1 g/L to several grams per liter. Other leaching methods include ammonia leaching, which is used for certain copper oxide ores. These methods are called leach-precipitation-flotation and are applied to mixed sulfide ores.

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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 chloride-ferrous 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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Bioleaching of Copper SpringerLink

Copper Sulfide Leach Solution Copper Recovery Heap Leach Bacterial Leaching These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Synergetic bioleaching of copper sulfides using mixed

01-02-2020· Synergetic bioleaching of copper sulfides using mixed microorganisms and its community structure succession. Key parameters in low-grade copper sulfide leaching process with different microbial communities, (a) concentration of bacteria, (b) copper extraction.

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Efficient Synchronous Extraction of Nickel, Copper, and

18-06-2020· Synchronous extractions of nickel, copper, and cobalt by selective chlorinating roasting and water leaching to low–grade nickel–copper matte. Separation and Purification Technology 195,149

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(PDF) Leaching of Copper Sulphides ResearchGate

Copper leaching from primary sulfides: Options for biological and chemical . extraction of copper. Hydrometallurgy, 83, 10

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