Processing plants for porphyry copper ores are generally very large, processing up to 200,000 tpd of ore (JX Nippon, ... Ni and NiCu sulphide ores. Nickelcopper sulphide ores can differ significantly in the mineralogy of both the sulphide and the gangue minerals. Pentlandite is the major source of nickel, and often carries with it cobalt or ...
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Secondary copper sulfide ore is easy to oxidize and more difficult to float than original copper ore. As for the grinding and floating process, it is more advantageous to adopt the stage grinding and floating process for refractory copper ore, such as the regrinding and reseparation of coarse concentrate, regrinding and reseparation of bulk ...
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Jhunalyn Parantar. 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. The problem is to convert the sulphide into the oxide form. This can be done by giving the sulphide ore an oxidizingsulphatizing roast.
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The treatment of copper sulfide minerals containing a high percentage of oxide copper causes problems in the concentration process, decreasing the copper content. In order to increase the efficiency of the concentration process, it is necessary to treat the copper oxide component by leaching the grinded ore prior to the flotation, or by ...
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Therefore, the main objective of the study was to optimize the process parameters for the flotation of base metals from a nickelcopper sulphide ore. 2. Materials and Methods 2. 1. Materials The nickelcopper sulphide ore used in this study was supplied by Trojan Nickel Mine located in Bindura, Zimbabwe.
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In some NiCu sulphide ores with low sulphide mineral content, but rich in precious metal levels, processing requires activation rather than depression. Recent work suggests that the ammoniacal solution of copper sulphate is more effective on pentlandite than the copper sulphate itself in the alkaline range [ 54 ].
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The mineral composition of coppercobalt ores is more complex than that of copper sulfides, and it is also difficult to discard tailing efficiently in primary flotation for the finegrained disseminated of ore. In this work, a mineral liberation analyzer (MLA) was employed to study the characteristics of minerals. As a significant mineralogical characteristic, the liberation degree of useful ...
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One solution is to be able to process copper sulphide ores hydrometallurgically. However, it is widely known that sulphide copper ores—and chalcopyrite in particular—have very slow dissolution kinetics in traditional leaching systems. An alternative to improve the extraction of copper from sulphide ores is the use of a pretreatment process.
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FILE A former iron ore processing plant near Hoyt Lakes, Minn., that would become part of a proposed PolyMet coppernickel mine, is pictured on Feb. 10, 2016. The proposed NewRange Copper Nickel ...
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The copper ore in Chilean copper porphyry deposits is often associated with molybdenum minerals. This coppermolybdenum (CuMo) sulfide ore is generally mined from various locations in the mining site; thus, the mineral composition, oxidation degree, mineral particle size, and grade vary.
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Its metallurgical technologies are primarily concerned with pyrometallurgy and hydrometallurgy. The overall process flowchart of nickel extraction from nickel sulfide ores is shown in Fig. ]. Spraying the deeply dehydrated powder concentrate from the top into the reactor at °C during flash smelting. The advantage of flash smelting ...
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The global market has announced copper as a modern energy metal and finds its extensive utilization in the construction industry, electrical wiring, power transmission lines, alloying, anticorrosive coating, heat exchangers, refrigeration tubing, etc. Copper ore is primarily beneficiated from sulphide mineral deposits. Due to highgrade copper sulphide deposit exhaustion, the focus has now ...
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Demand for copper continues to grow due to many factors such as increasing human population and the green energy transition. Mining and processing of complex copper sulphide ores, that are low grade, highly disseminated and contain troublesome gangue minerals such as clays, is becoming more common.
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Despite the small proportion of coppernickel sulfide ores, the production of nickel from nickel sulfide ores account for more than 60% of the world's total nickel production due to its simpler production process . In China, coppernickel sulfide ores and nickel oxide ores account for 87% and 13% of the total national nickel reserves ...
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The copper sulphide recovery did not decrease when processing the blended ore compared to treating the sulphide ore independently. At a blend of 70% sulphide ore and 30% oxide ore, the rougher scavenger copper recovery was as high as %.
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The experimental study on the grinding of two copper sulphide ores using the Magotteaux mill followed by batch flotation of the grinding product in the Magotteaux cell showed that the grinding environment has some influence on electrochemical parameters of the prepared pulp, particle size distributions of solid mass and Cumetal mass in the ...
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T2K has the advantages of strong collection ability, high selectivity and partial ing ability when processing copper sulfide ore or gold and silverbearing copper sulfide ore. PN405 PN405 has a strong selective collecting and ing capacity for copper ore. By using this agent alone or with a small number of xanthate collectors, a better ...
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Copper processing uses physical, mechanical and / or chemical methods to convert runofmine (ROM) copper ore to highquality, pure copper. A wide range of mineral processing equipment is used in converting the copper ore to the final copper product, our solutions range includes: Screening Solutions Cyclone Solutions Sampling Solutions
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The first step, mineral processing, is to liberate the copper minerals and remove waste constituents—such as alumina, limestone, pyrite, and silica—so that the copper minerals and other nonferrous minerals of value are concentrated into a product containing between 20 and 30 percent copper.
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An empirical model was proposed for the copper recovery in the rougher stage, which resulted in a predicted value of %, which was lower than that for the fresh (and higher copper content) ore ...
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As earlier stated, pyrometallurgical processing of the ore involves the roasting and smelting of the sulfide ore to produce a matte, a mixture of copper, iron, and sulfur. During the smelting ...
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The basic optimal technology parameters for the efficient processing of sulfidebearing coppernickel ore are selected to be: the roasting temperature of 400 °C, the ore: ammonium sulfate ratio of 1:10, the particle size of 40 (mu) m and the roasting time of 240 min. An important condition is joint milling of ore and ammonium sulfate ...
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This work investigates the effect of an agglomeration and curing pretreatment on leaching of a copper sulfide ore, mainly chalcopyrite, using minicolumns in acidnitratechloride media. Ten pretreatment tests were conducted to evaluate different variables, namely the addition of nitrate as NaNO3 ( and kg/ton), chloride as NaCl ( and kg/ton), curing time (20 and 30 days) and ...
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The common route for turning copper sulfide ores into metal is high temperature oxidation of sulfides to produce an impure liquid copper. This is cast into slablike anodes. ... First application of the thinlayer process on copper sulfide ores (chalcocite) contains about 1% Cu. In 1994, the design capacity was of 75,000 tons/year which was ...
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The aim of this study is to apply process mineralogy as a practical tool for further understanding and predicting the flotation kinetics of the copper sulfide minerals. The minerals' composition ...
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