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Flotation Of Mixed Copper Oxide And Sulphide Minerals

  • Effect Of Desliming On Flotation Response Of Kansanshi

    Kansanshi Sulfide Oxide Copper Ore, Flotation, Baseline, Desliming 1. Introduction Flotation recovery of valuable minerals from ores is a function of particle size and it is therefore anticipated that variation in the granulometric characteristics of feed to a flotation process will affect flotation performance. Size of mineralKansanshi Sulfide Oxide Copper Ore, Flotation, Baseline, Desliming 1. Introduction Flotation recovery of valuable minerals from ores is a function of particle size and it is therefore anticipated that variation in the granulometric characteristics of feed to a flotation process will affect flotation performance. Size of mineralJul 15, 2013 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 collectorsThe invention discloses a combined concentration and smelting method for mixed copper ore. The method is a flotation-acid leaching combined concentration and smelting method which comprises the following steps of separating sulphide ore from oxide and sulphide-mixed copper ore with the oxygenation efficiency of 10 to 80 percent to obtain copper ore concentrates forbidding to add flotation ...

  • Feasibility Study Of Differential Flotation Of Cupbzn

    Aug 28, 2020 In this research, flotation of copper, lead and zinc minerals from a copper oxidesulfide ore was studied. The identification tests showed that the sample is a mixture of quartz, chalcopyrite, galena, cerussite, hemimorphite and iron oxide minerals with 5.04 CuO, 1.61 PbO, 2.07 ZnO and 56.40 SiO 2.The experimental design methodology RSM was conducted toAug 28, 2020 In this research, flotation of copper, lead and zinc minerals from a copper oxidesulfide ore was studied. The identification tests showed that the sample is a mixture of quartz, chalcopyrite, galena, cerussite, hemimorphite and iron oxide minerals with 5.04 CuO, 1.61 PbO, 2.07 ZnO and 56.40 SiO 2.The experimental design methodology RSM was conducted tosulphidisation for flotation of oxidized sulphides has also been demonstrated Newell et al., 2006. When introduced in the slurry, the sulphidiser dissociates into -the species H 2 S, HS-or S 2, depending on the pH. These ions react with the copper oxide minerals to form a sulphide layer on the surface ofore types, viz. oxide, sulphide, and mixed. The objective of this study was to investigate the floatability of a complex Kansanshi mixed copper ore comprising sulphide and oxide minerals, with a view to achieving an optimal flotation performance in the treatment of the Kansanshi orebody, with a special focus on the sulphidization process.

  • Investigation Of Mechanism Of Adsorption Of Xanthate And

    Copper oxide minerals such as malachite do not respond well to the traditional copper sulfide collectors, and require alternative flotation schemes. In many copper ore mines, significant copper oxide minerals, especially malachite, are associated with sulfide minerals. Considering that xanthates are most widely used in the flotation of sulfide minerals as well as copper sulfide minerals and ...Copper oxide minerals such as malachite do not respond well to the traditional copper sulfide collectors, and require alternative flotation schemes. In many copper ore mines, significant copper oxide minerals, especially malachite, are associated with sulfide minerals. Considering that xanthates are most widely used in the flotation of sulfide minerals as well as copper sulfide minerals and ...The wettability and floatability of oxidized chalcocite, bornite, and chalcopyrite with the conditions of sodium hydrosulfide NaHS dosages and pHs were studied by contact angle measurements, and single and mixture mineral flotation tests. To evaluate the results of the flotation, the flotation kinetic model for copper sulfide minerals treated by NaHS was derived.Copper oxide ores are commonly difficult-to-float due to its molecular structure, and adding sodium sulfide as activator is necessary however, its dosage to the flotation pulp must be strictly controlled, as it is also a powerful depressant for copper sulfide minerals, and will, if in excess, depress the activated copper oxide minerals.

  • Copper Ore Types Sulfides Vs Oxides An Investors

    Nov 09, 2020 These copper oxide ores are usually leached using sulfuric acid to liberate the copper minerals into a solution of sulfuric acid laden with copper sulfate solution. The copper sulfate solution ...Nov 09, 2020 These copper oxide ores are usually leached using sulfuric acid to liberate the copper minerals into a solution of sulfuric acid laden with copper sulfate solution. The copper sulfate solution ...Jan 01, 2009 It is a mixed ore mainly containing copper oxide that also contains some copper sulfide ore that undergoes good flotation. The acid leaching rate of copper Received 20 May 2008 accepted 29 August 2008 Projects 50604016 supported by the National Natural Science Foundation of China and 2007BAB22B01 by the 11th Five Year Plan of ...We study the effect of one of the main parameters of flotation ore-dressing, specifically, alkalinity of the pulp, on the selective flotation of sulfide and oxide minerals of copper from the Udokan deposition ores Chita oblast. It is found that the optimum values are pH 9 for sulfide minerals of copper and pH 10 for the oxide ones. A supply of lime at the stage of pounding and sodium ...

  • Division Of Sustainable Process Engineering Sulphide

    2 production with the rest potential of the sulphide minerals higher is the rest potential more is the formation of H 2O 2. Most likely H 2O 2 is answerable for the oxidation of sulphide minerals and dissolution of non-ferrous metal sulphides in the presence of ferrous sulphide2 production with the rest potential of the sulphide minerals higher is the rest potential more is the formation of H 2O 2. Most likely H 2O 2 is answerable for the oxidation of sulphide minerals and dissolution of non-ferrous metal sulphides in the presence of ferrous sulphideUS2797808A US416693A US41669354A US2797808A US 2797808 A US2797808 A US 2797808A US 416693 A US416693 A US 416693A US 41669354 A US41669354 A US 41669354A US 2797808 A US2797808 A US 2797808A Authority US United States Prior art keywords ore concentrate flotation sulfide rougher Prior art date 1954-03-16 Legal status The legal status is an assumption and is not aAbstract Sherwood Coppers Minto Mine processes a high grade coppergold 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 ...

  • Flotation Of Mixed Oxide Sulphide Coppercobalt Minerals

    Where oxide and sulphide cobalt-bearing copper minerals occur together, efficient recovery of copper and cobalt is known to be extremely difficult. This study investigates the flotation behaviour of a mixed oxide-sulphide ore where copper is hosted in sulphides phases such as bornite, chalcopyrite and chalcocite, and oxide phases such as ...Where oxide and sulphide cobalt-bearing copper minerals occur together, efficient recovery of copper and cobalt is known to be extremely difficult. This study investigates the flotation behaviour of a mixed oxide-sulphide ore where copper is hosted in sulphides phases such as bornite, chalcopyrite and chalcocite, and oxide phases such as ...sulphide cobalt-bearing copper minerals occur together, efficient recovery of copper and cobalt is known to be extremely difficult. This study investigates the flotation behaviour of a mixed oxide-sulphide ore where copper isFroth Flotation Sulphide amp Oxide ... Mixed copper sulfide and oxide 3 replies A. Gaco. ... In a traditional way, sulphide and oxide copper minerals do not recover at the same rate. You typically handle their flotation in a sequential manner sulphide species 1 followed by oxide minerals. P.

  • Treatment Of Mixed Sulfide Oxide Ores Of Copper

    Sep 25, 2016 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, then reground and sent through the regular flotation operation.Sep 25, 2016 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, then reground and sent through the regular flotation operation.improvement of sulphide-oxide copper ores processing through the use of mixed collector systems has surged. The flotation of a natural porphyry copper ore with bornite and malachite was investigated via fundamental work with pure minerals and a bench-scale testing regime. TheThe Kansanshi Mine First Quantum Minerals Ltd treats a mixed sulphideoxide copper-gold vein deposit. Until June 2009, the sulphide and oxide minerals were respectively recovered by the well established xanthate flotation of sulphides and acid leaching of soluble oxide copper. The mixed transitional sulphideoxide ores were stockpiled in the

  • Effect Of Grinding Chemistry On The

    The recovery of copper by sulphidisation and flotation from a mixed ore has been studied in detail in this thesis. Particular focus was given to the effect of pulp chemistry on the sulphidisation mechanism and subsequent flotation response of oxidised sulphide minerals, both ofThe recovery of copper by sulphidisation and flotation from a mixed ore has been studied in detail in this thesis. Particular focus was given to the effect of pulp chemistry on the sulphidisation mechanism and subsequent flotation response of oxidised sulphide minerals, both ofThe floatability of copper oxide ores is generally worse than that of copper sulfide ores, and is greatly influenced by the existing form of copper in minerals and gangue composition. For example, when copper is in the form of carbonate malachite, blue copper ore, the flotability is relatively good, while the flotability of silicate silica ...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 m, each ore type is subjected to flotation to recover the copper sulphide minerals chalcopyrite, bornite, chalcocite, covellite.

  • Minerals Free Fulltext Parametric Optimization In

    A principal issue involved in the flotation of mixed sulfide-oxide ores and the copper industry is the low recovery of oxide section. This is related to the surface properties of copper oxide minerals, which cannot respond well to traditional sulfide copper collectors .A principal issue involved in the flotation of mixed sulfide-oxide ores and the copper industry is the low recovery of oxide section. This is related to the surface properties of copper oxide minerals, which cannot respond well to traditional sulfide copper collectors .Radio Hill in Australia successfully used the Ausmelt reagent AM28 an alkyl hydroxamate to float mixed sulphideoxide copper ore, increasing recovery from a low of 40 to 50 up to 70. They used AM28 to replace sulphidisation of oxide minerals, in conjunction with standard sulphide collectors to recover sulphide minerals.In this case, flotation becomes tougher due to mixed mineralic system. From past reviews, the recovery of copper from sulphide mineral using xanthate and pine oil is relatively easy, but mixed oxide-sulphide minerals do not respond to traditional sulphide collector.

  • Flotation Of A Copper Sulphide Ore From Okiep Using

    froth flotation performance obtained with a bornite-rich copper sulphide ore from Okiep Copper Mine with a feed grade of 1.8 copper. Batch flotation tests were used to assess the performance in terms of mass-water recovery, sulphur grade-recovery and copper grade-recovery relationships and the Klimpel rate constant for copper recovery.froth flotation performance obtained with a bornite-rich copper sulphide ore from Okiep Copper Mine with a feed grade of 1.8 copper. Batch flotation tests were used to assess the performance in terms of mass-water recovery, sulphur grade-recovery and copper grade-recovery relationships and the Klimpel rate constant for copper recovery.Mar 01, 2009 Flotation of mixed copper oxide and sulphide minerals with xanthate and hydroxamate collectors 1. Introduction. Many copper sulphide mines around the world have significant copper oxide ore reserves associated with... 2. Experimental methods. Three separate composite samples were tested, namely ...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 oxide ores. The blend used in this laboratory scale investigation was 70 sulphide ore and 30 oxide ore on a

  • Flotation Of Mixed Copper Oxide And Sulphide Minerals

    Flotation of mixed copper oxide and sulphide minerals with xanthate and hydroxamate collectors K. Leea, D. Archibaldb, J. McLeanc, M.A. Reuterc, a Ausmelt Limited, AMML, Unit 38 Yandina Road ...Flotation of mixed copper oxide and sulphide minerals with xanthate and hydroxamate collectors K. Leea, D. Archibaldb, J. McLeanc, M.A. Reuterc, a Ausmelt Limited, AMML, Unit 38 Yandina Road ...Jul 01, 2019 Flotation of mixed oxide sulphide copper-cobalt minerals using xanthate, dithiophosphate, thiocarbamate and blended collectors 1. Introduction. Over the past two years the cobalt price has been volatile, varying by about 300 London Metal... 2. Materials and methods. Test work was carried out with ...