mixed copper oxide and sulphide minerals processing

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mixed copper oxide and sulphide minerals processing

mixed copper oxide and sulphide minerals processing

Flotation of mixed copper oxide and sulphide

2009-3-1  For mixed oxide and sulphide ores, CPS is unsuitable for simultaneous flotation of copper oxide and sulphide minerals, as the sulphides are usually heavily depressed by the sulphide ions from NaHS additions necessary to sulphidise the oxide copper.

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Mixed Copper Oxide And Sulphide Minerals Processing

Mixed Copper Oxide And Sulphide Minerals Processing. The recovery of oxide copper minerals from a plex Kansanshi copper mine is situated in the north western province of Zambia As a result of the mineral variations, the processing plant treats three distinct ore types, viz oxide, sulphide and mixed.get price

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Flotation of mixed copper oxide and sulphide

In the case of the Minto operation the copper oxide and sulphide minerals occur in separate ore deposits and can be treated separately or blended together. This investigation has shown that using n -octyl hydroxamates (AM28 made by Ausmelt Limited) in conjunction with traditional sulphide collectors can successfully simultaneously recover copper sulphides and oxides by flotation from blended ore minerals.

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Flotation of mixed copper oxide and sulphide minerals

operation the copper oxide and sulphide minerals occur in separate ore deposits and can be treated sep- arately or blended together. This investigation has shown that using n-octyl hydroxamates

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Flotation of mixed copper oxide and sulphide

Abstract Sherwood Copper’s Minto Mine processes a high grade copper–gold deposit in Yukon, Canada. The ore mined is from a primary copper sulphide deposit with separate additional deposits of copper oxides. In conjunction with Ausmelt Chemicals, Minto is currently investigating options to recover copper oxide and sulphide minerals using flotation by blending their primary sulphide ore with

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(PDF) Development and optimization of mixed

The Kansanshi Mine (First Quantum Minerals Ltd) treats a mixed sulphide/oxide copper-gold vein deposit. Until June 2009, the sulphide and oxide minerals were respectively

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Flotation of mixed oxide sulphide copper-cobalt

2019-7-1  For mixed oxide-sulphide ores, up to 80% of the copper and 60% of the cobalt is recovered in the sulphide concentrate while for the oxide concentrate, only 60% of the copper and 40% of the cobalt are usually recovered (Crundwell et al., 2011). With mixed oxide-sulphide ores, it is accepted practice to concentrate sulphide and oxide minerals in separate flotation processes.

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The recovery of oxide copper minerals from a complex

2017-3-1  As a result of the mineral variations, the processing plant treats three distinct ore types, viz. oxide, sulphide and mixed. The objective of this study was to investigate the floatability of a complex Kansanshi mixed copper ore with a special focus on the sulphidisation process.

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Flotation of mixed oxide sulphide copper-cobalt minerals

2019-11-22  dium sulphide on oxide minerals depends on heterogeneous reactions taking place between the sulphide ions in the solution and the oxide minerals compared with the sulphide ions and the gangue minerals (Malghan, 1986). Three steps were identified for copper oxides: ad-sorption of sulphide ions with the formation of copper sulphide, sul-

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v118n11a5 Relationship between ore mineralogy and

2018-11-30  The variability of copper mineralization at Kansanshi mine significantlyaffects the efficiencies of the processes used to recover copper. Quantifyingthis variability is therefore essential for monitoring and optimizing theperformance of the concentrator, which comprises three different flotationcircuits (sulphide, mixed, and oxide) and an atmospheric leach circuit. On-site automated scanning electron microscopy with energy-dispersive X-rayspectrometry (Auto-SEM-EDS) is used to analyse routine weekly compositesamples for each circuit, providing detailed analyses of bulk mineralogy,copper deportment to different minerals, mineral liberation, andassociations. Weekly mineralogical trends are used to assess changes inprocess performance, and characterization of the copper losses has inspireda number of projects to target the specific particle types responsible for themain losses. In this paper we describe the relationship between mineralogyand plant performance at Kansanshi, and discuss some of the advantagesand challenges of on-site process

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mixed copper oxide and sulphide minerals processing

At a blend of 70% sulphide ore and 30% oxide ore, the rougher scavenger copper recovery was as high as 95.5%. K. Lee, D. Archibald, J. McLean, M.A. Reuter 185 2009Development and optimization of mixed sulphide/oxide copper The Kansanshi Mine (First Quantum Minerals Ltd) treats a mixed sulphide/oxide coppergold vein deposit.

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The recovery of oxide copper minerals from a complex

2017-3-1  The mixed ore contains oxide, supergene oxide and hypogene sulphide copper species respectively with the greater part of the deposit being made up of sulphide and mixed ores. The oxide ore has a much higher grade than the mixed and sulphide ores but contributes less to the resource (Broughton et al., 2002).

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Flotation of mixed copper oxide and sulphide

Abstract Sherwood Copper’s Minto Mine processes a high grade copper–gold deposit in Yukon, Canada. The ore mined is from a primary copper sulphide deposit with separate additional deposits of copper oxides. In conjunction with Ausmelt Chemicals, Minto is currently investigating options to recover copper oxide and sulphide minerals using flotation by blending their primary sulphide ore with

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(PDF) Development and optimization of mixed

The Kansanshi Mine (First Quantum Minerals Ltd) treats a mixed sulphide/oxide copper-gold vein deposit. Until June 2009, the sulphide and oxide minerals were respectively recovered by the well

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v118n11a5 Relationship between ore mineralogy and

2018-11-30  Sulphide, oxide, and mixed ore are fed to separate mineral processing circuits tailored for recovery of the dominant copper minerals in each. After comminution to a target grind size of 80% passing 150 μm, each ore type is subjected to flotation to recover the copper sulphide minerals (chalcopyrite, bornite, chalcocite, covellite).

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Copper Ore Types: Sulfides vs. Oxides An Investor's

2020-11-9  That is because they have high copper content, and the copper in them can more easily be separated from unwanted minerals. However, copper oxide ores have an

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Hydroxamate Collectors Metallurgist & Mineral

2013-7-15  Let me point you to two good papers on the flotation of mixed copper oxide and sulphide minerals with xanthate and hydroxamate collectors.. A great detailed thesis called “An Investigation of Copper Recovery from a Sulphide-Oxide Ore with a Mixed Collector System” and one called “Flotation of mixed copper oxide and sulphide minerals with xanthate and hydroxamate collectors

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Flotation of mixed oxide sulphide copper-cobalt minerals

2019-11-22  known about processes for copper and cobalt extraction from mixed oxide-sulphide ore (Crundwell et al., 2011). From the perspective of beneficiation, mixed oxide-sulphide ores present a challenge, not least because physiochemical properties of sulphide minerals vary as a function of their oxidation state (Bulatovic, 2010; Gaudin, 1957). In

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(PDF) The recovery of oxide copper minerals from a

Kansanshi copper mine is situated in the north western province of Zambia. As a result of the mineral variations, the processing plant treats three distinct ore types, viz. oxide, sulphide and mixed.

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Bioprocess for Leaching of Copper from Mixed Sulfide

2020-1-8  The flotation copper concentrates contained 27–37.4% copper as sulfide (digenite, bornite, etc.) and oxide (malachite, azurite, tenorite, etc.) minerals. The acid leaching under batch conditions at 50°C and pH 1.2 during 22 hours led to 40.6% of copper recovery from the concentrate. The final concentration of copper in the pregnant leach

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mixed copper oxide and sulphide minerals processing

At a blend of 70% sulphide ore and 30% oxide ore, the rougher scavenger copper recovery was as high as 95.5%. K. Lee, D. Archibald, J. McLean, M.A. Reuter 185 2009Development and optimization of mixed sulphide/oxide copper The Kansanshi Mine (First Quantum Minerals Ltd) treats a mixed sulphide/oxide coppergold vein deposit.

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mixed pper oxide and sulphide minerals processing

Treatment of Mixed Sulfide Oxide Ores of Copper. Many of our largest copper deposits contain both sulfide and oxidized copper minerals. The large porphyry mines, with a total copper content of from 1.3 to 2.0 per cent., send to their mills ore with an oxide content of from 0.2 to 0.4 per cent.

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Flotation of mixed copper oxide and sulphide

Copper sulphide ores Flotation collectors From previous flotation investigations of mixed copper oxide and sulphide minerals using xanthate and Mineral processing hydroxamate collectors it was hard to distinguish the impact of the alkyl hydroxamate collector on sul- Alkyl hydroxamates phide recovery as the sulphide and oxide minerals occurred

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Treatment of Mixed Sulfide Oxide Ores of Copper

2016-9-25  The oxide orebodies, in which the copper is present about half as sulfide and half as oxidized minerals, and where the recovery to be expected is 25 or 30 lb. per ton of ore, might well be treated first by the method used at New Cornelia, to recover the oxide copper

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Hydroxamate Collectors Metallurgist & Mineral

2013-7-15  Let me point you to two good papers on the flotation of mixed copper oxide and sulphide minerals with xanthate and hydroxamate collectors.. A great detailed thesis called “An Investigation of Copper Recovery from a Sulphide-Oxide Ore with a Mixed Collector System” and one called “Flotation of mixed copper oxide and sulphide minerals with xanthate and hydroxamate collectors

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important sulphite minerals of copper in ethiopia

2020-9-23  Mixed Copper Oxide And Sulphide Minerals Processing. Mineral copper sulphide Henan Mining Machinery Co Ltd Copper sulphide mineral icas2017conference The recovery of oxide copper minerals from a plex Kansanshi copper mine is situated in the north western province of Zambia As a result of the mineral variations the processing plant treats three distinct ore types viz oxide sulphide and mixed

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The recovery of oxide copper minerals from a complex

variations, the processing plant treats three distinct ore types, viz. oxide, sulphide and mixed. The objec- tive of this study was to investigate the floatability of a complex Kansanshi mixed

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Bioprocess for Leaching of Copper from Mixed Sulfide

2020-1-8  The flotation copper concentrates contained 27–37.4% copper as sulfide (digenite, bornite, etc.) and oxide (malachite, azurite, tenorite, etc.) minerals. The acid leaching under batch conditions at 50°C and pH 1.2 during 22 hours led to 40.6% of copper recovery from the concentrate. The final concentration of copper in the pregnant leach

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v116n6a11 Review, evolution, and optimization of the

2016-7-19  copper oxide minerals to form a sulphide layer on the surface of the oxide minerals (Zhou and Chander, 1992). The sulphidizer concentration can be controlled by measuring the E S potential of the pulp using a sulphide ion-selective electrode. The reaction between the sulphidizer and malachite is optimum at a potential of –500 mV (Jones and

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Leaching of Copper Sulphides SAIMM

2016-6-8  pyrometallurgical processing route of copper sulphides. Three copper sulphide leaching and refining processes are discussed: total pressure oxidation, ferric sulphate leaching and copper chloride leaching. The effect of mineralogy on the choice of processing technology is discussed as well as some of the unit processes used.

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