heap leaching copper sulphide

heap leaching copper sulphide

  • Application of SART to Heap Leaching of Gold Copper

    sgs minerals services. technical paper 2008 51 2008. 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.

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  • Innovations in Copper Mineral Processing Technology

    Innovations in Copper Mineral Processing Technology Peter Rohner Core Resources, Brisbane Oxide / Sulphide Other Dump/Heap Leaching Concentration (Gravity / Flotation) ROM ore ROM ore For copper heap leach applications, removes gangue

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  • sulfide type gold ore heap leaching laquietebeb.it

    processing gold ores using heap leach carbon adsorption . Copper Leaching Plant. Sulfide copper Plant Price Mobile Ore Processing Malachite Heap Leaching Copper Desorption column used in gold processing plant, electrowinning and leaching . High Efficiency Sliver Ore Processing Leaching Absorption Tank .

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  • 1, ID 2 1 mdpi

    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

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  • What is the best method for sulfide copper leaching?

    Popular Answers ( 1) 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 copper sulfide leaching. Is the better you done and detailed search in Geo Coat processes and etc.

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  • LEACHING OF A ROASTED COPPER SULFIDE ORE

    LEACHING OF A ROASTED COPPER SULFIDE ORE Rosselle Kim P. Castillano, Wilfredo T. Gatdula Jr., Gin Derick L. Magno, Jhunalyn H. Parantar METE 157N HYDROMETALLURGY LABORTORY ABSTRACT Sulphide ores of copper are insoluble in dilute sulphuric acid leaching solutions, but a very high extraction can be obtained if the copper ore is in the oxidized condition.

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  • iron removal heap copper leaching africar hire

    Copper Mining and Processing Processing of Copper Ores . Copper processing is a complicated process that begins with mining of the ore (less To remove the ore, boring machinery is used to drill holes into the hard rock, and Heap Leaching is the process of using percolating chemical solutions to a mixture of copper, sulfur and iron, and slag, a dense, glassy material made of

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  • Copper Projects ALTA Metallurgical Services

    Codelco Chile Consulting services for copper heap and dump leaching projects, including Chuquicamata (Mina Sur North Extension, Ripios, ROM, LG Dumps), Gaby, San Antonio, Damiana, and Andina, plus preparation of protocols for heap leaching testwork for oxide and sulphide

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  • Heap leaching

    Nickel oresEdit. The method is an acid heap leaching method like that of the copper method in that it utilises sulfuric acid instead of cyanide solution to dissolve the target minerals from crushed ore. The amount of sulfuric acid required is much higher than for copper ores

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  • Copper Mining and Processing Processing of 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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  • Copper Heap Leach Development Not as Easy as it Looks

    Aug 15, 20160183;32;Heap leaching has become increasingly popular in the copper industry for treating oxide and secondary sulphide ores, and is now being extended to primary sulphide ores.

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  • Analysis of heat conservation during copper sulphide heap

    Heat transport is especially important in copper sulphide heap leaching, in which one or more highly exothermic sulphide oxidation reactions take place, for several reasons. First, the bacteria which catalyze the oxidation reactions are sensitive to temperature.

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  • Bioleaching model of a copper sulfide ore bed in heap and

    Modeling of the leaching of copper sulfide ores in heaps. Bioleaching Model of a Copper Sulfide Ore Bed in Heap and Dump Configurations J.M. CASAS, J. MARTINEZ, L. MORENO, and T. VARGAS A two dimensional (2 D) model for a heap or dump bioleaching of a copper ore containing mainly chalcocite and pyrite has been developed.

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  • Producing Copper Nature's Way Bioleaching

    Heap leaching newly mined run of the mine (ROM) material (intermediate grade, oxides and secondary sulfides) is deposited in a heap on an impervious natural surface or a pad and leached. ROM may be leached as mined or may be partially crushed and mixed with acid prior to depositing on heap.

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  • Leaching of Primary Copper Sulfide Ore in Chloride Ferrous

    Hence, different leaching techniques for copper sulde ores, especially chalcopyrite, need to be investigated in the future. Presently, the mining industry faces the challenge of extracting copper from low grade copper ores. In 2002 the average copper ore grade was 1.13%, while in 2011 it was 0.84% [3].

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  • US8070851B2 Chloride heap leaching Google Patents

    A heap leaching method to recover copper from a primary copper sulphide mineral wherein the mineral is leached in an acidic chloride/sulphate solution in the presence of oxygen with the surface potential of the mineral below 600 mV (vs. SHE) to cause dissolution of the copper sulphide. Description.

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  • Heap Leach Mining's breakthrough technology MINING

    Aug 20, 20150183;32;Copper Heap Leaching (Solvent Extraction Electrowinning SX EW) With about 327 kt produced in 2012, CODELCOs Radomiro Tomic mine is believed to takes first place in terms of HL copper output, followed by BHP Billitons Escondida and Spence mines (Table 2).

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  • Process amp; Economic Considerations for Primary Copper

    Process amp; Economic Considerations for Primary Copper Sulphide Leaching Copper 2007 Toronto August 2007 Ken Baxter Perth, West Australia OBJECTIVES Identify design basis for process flowsheet Discuss process options Discuss autoclaves for reagent generation Discuss project economics DESIGN QUESTIONS Is the flowsheet based on primary sulphide treatment process or is there a

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  • Heap leaching

    Nickel ores. The method is an acid heap leaching method like that of the copper method in that it utilises sulfuric acid instead of cyanide solution to dissolve the target minerals from crushed ore. The amount of sulfuric acid required is much higher than for copper ores (as high as

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  • (PDF) Leaching of Copper Sulphides researchgate

    leaching of all copper sulphide minerals, such a s chalcopyrite, bornite, c halcocite, covell ite and digenite ( Valkama, 2013 ). These leach conditions have delivered high recoveries of copper

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  • Copper Mining and Processing Processing of Copper Ores

    A. Processing of Oxide Ore. The leftover leach solution is then recycled, by adding additional acid and sending it back to the sprinklers in the heap leaching process. Electrowinning is the final step in processing oxide ore into copper cathodes.

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  • Sulphuric acid leaching of zinc and copper from Nigerian

    The highest recoveries of zinc and copper were obtained at a leaching time of 180 minutes, stirring speed of 160 rpm, particle size of 75 181;m and a concentration of 1M H2SO4/1M H2O2. It was observed that the leaching rate of zinc and copper increased with increasing hydrogen peroxide concentration.

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  • (PDF) A comprehensive model for copper sulphide heap

    Analysis of heat conservation during copper sulphide heap leaching. as in the large column with a larger particle size distribution, this Hydrometallurgy 58, 2741. Dixon, D.G., 2003. In Young, C.A., et al. (Ed.), Heap leach modeling the current state phenomenon can be either short lived or may not even be not of the art, hydrometallurgy

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  • Cyanide Leaching Of Gold Mine Engineer.Com

    Leaching gold from sulfide ores is difficult, at best. Generally, the recovery for cyanide leaching of sulfide or refractory ores is no better than 30%, which is not a worthwhile venture. The use of alkalies such as calcium oxide, will prevent the decomposition of cyanide in

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  • ALTA MetBytes Metallurgical commentary and insights

    Heap leaching has become increasingly popular in the copper industry for treating oxide and secondary sulphide ores, and is now being extended to primary sulphide ores. If you are thinking about a project, here are some practical pointers to help you towards a successful outcome.

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  • HEAP LEACHING TECHNIQUE in MINING Euromines

    metal ores (lt;1% copper, lt;1g/ton gold, lt; 0.5% nickel) previously considered uneconomical, became feasible with introduction of heap leaching technologies (Marsden, 2009). In consideration of ore types, a generalized diagram showing the applicable ore beneficiation technologies for oxide and sulphide ores versus ore grade is given in Figure 2.

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  • Heap Leaching Mineral Processing amp; Metallurgy

    Heap Leaching Copper Ores. The Ohio Copper Co. at Bingham, Utah, has been leaching in place since 1919. Many other leaching operations are also being carried out in various parts of the United States and in foreign countries. The plant at Rio Tinto, Spain, may be considered the father of heap leaching.

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  • Agitated Copper Leaching amp; Cementation Process

    Copper Agitated Leaching and cementation process of copper problem The treatment of copper ores, both oxides and sulfides by means of flotation, hydrometallurgy or other processes has been well established for many years. Flotation has been applied generally to the treatment of sulfide ores, both in small and large scale operations.

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  • 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

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  • Sulphide Leaching Mineral Processing amp; Metallurgy

    Methods of leaching sulphide ores can be in absence of oxidizing agents in presence of oxidizing agents Bacterial leaching Absence of oxidizing agents Acid leaching Dilute acids dissolve some metal sulphides with liberation of H2S, e.g. ZnS + 2H+ ^ Zn2+ + H2S Three types of sulphides can be encountered. Completely soluble sulphides Zns, CoS, NiS, FeS Slightly soluble, e.g. FeS2.

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  • Producing Copper Nature's Way Bioleaching

    SummaryExamples of Current Industrial Bioleaching OperationsBackgroundChemistry of BioleachingMicrobiology of BioleachingLeaching MethodCostsResearchConclusionsBioleaching is the extraction of a metal from sulfide ores or concentrates using materials found native to the environment; namely, water, air and microorganisms. In other words, bioleaching is the commercialization of the ability of certain bacteria and archaea, found in nature, to catalyze the oxidation of sulfide minerals. It is the leaching of sulfide minerals that distinguishes bioleaching from conventional acid leaching wherein only oxidized minerals are leached.An associated process isMore+
  • Innovations How Hydrometallurgy and the SX/EW Copper

    Bacterial Leaching. On investigation it was found that naturally occurring bacteria were oxidizing iron sulfides and the resulting ferric sulfate was acting as an oxidizer and leachant for copper sulfides. These bacteria were given the name ferrooxidans for their action in oxidizing iron sulfides.

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  • Analysis of heat conservation during copper sulphide heap

    An analysis of heat conservation during copper sulphide heap leaching has been carried out with the aid of a computer model. As a result, a new mode of heap behaviour called evaporative

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  • Process amp; Economic Considerations for Primary Copper

    Process amp; Economic Considerations for Primary Copper Sulphide Leaching Copper 2007 Toronto August 2007 Ken Baxter Perth, West Australia OBJECTIVES Identify design basis for process flowsheet Discuss process options Discuss autoclaves for reagent generation Discuss project economics DESIGN QUESTIONS Is the flowsheet based on primary sulphide treatment process or is there a

    More+
  • US8070851B2 Chloride heap leaching Google Patents

    A heap leaching method to recover copper from a primary copper sulphide mineral wherein the mineral is leached in an acidic chloride/sulphate solution in the presence of oxygen with the surface potential of the mineral below 600 mV (vs. SHE) to cause dissolution of the copper sulphide. Description.

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  • A fresh approach to sulfide ores Canadian Institute of

    Jun 26, 20170183;32;The copper mining industry is reaching a turning point. Surface oxide deposits are depleting and copper miners are turning their attention to untapped sulfide ores found deeper underground. However, sulfides require more expensive processing techniques since they are not responsive to standard technologies that are used in oxide heap leaching.

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  • Copper heap leach development not as easy as it looks

    Aug 04, 20160183;32;Copper heap leach development not as easy as it looks. Heap leaching has become increasingly popular in the copper industry for treating oxide and secondary sulphide ores, and is now being extended to primary sulphide ores. The ability to use heap leaching, together with solvent extraction and electrowinning

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  • Copper extraction

    Smelting. Copper can be lost from the matte in three ways as cuprous oxide (Cu 2 O) dissolved in the slag, as sulfide copper dissolved in the slag or as tiny droplets (or prills) of matte suspended in the slag. The amount of copper lost as oxide copper increases as the oxygen potential of the slag increases.

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