Flotation of sulphides and oxides of copper

Flotation of sulphides and oxides of copper

Republic of Congo (DRC) from ores containing copper-cobalt oxides or copper-cobalt sulphides. 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

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  • (PDF) Flotation of an Oxidized Copper Sulfide Ore (PDF) Flotation of an Oxidized Copper Sulfide Ore

    The copper oxide distributes mainly at the perimeter of copper sulfide. According to the characteristics of the structure, a flow sheet of rough grinding and flotation of inter-locked particles is

  • Flotation of a Copper-Lead Sulfide-Oxide Ore:Using a Flotation of a Copper-Lead Sulfide-Oxide Ore:Using a

    Copper and lead phases analysis show that the oxidation rates of copper and lead are up to 70% and 72%, respectively. In order to get a good flotation performance for the difficult-to-treat ore, an efficient flotation technology of bulk flotation of Cu-Pb sulfides,separation of Cu-Pb sulfides, copper and lead oxides flotation has been developed

  • Flotation and Tailing Discarding of Copper Cobalt Sulfide Flotation and Tailing Discarding of Copper Cobalt Sulfide

    The mineral composition of copper–cobalt ores is more complex than that of copper sulfides, and it is also difficult to discard tailing efficiently in primary flotation for the fine-grained 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

  • flotation of sulfides and oxides flotation of sulfides and oxides

    Flotation of Mixed Copper Oxide and Sulphide Minerals . Flotation of mixed copper oxide and sulphide minerals with xanthate . doi:10. Mineralogy and QEMSCAN analysis Optical microscopy was conducted on the head samples of . Inquire Now; 1 Froth Flotation Fundamental Principles

  • RECOVERY OF COPPER FROM OXIDE COPPER ORE BY RECOVERY OF COPPER FROM OXIDE COPPER ORE BY

    RECOVERY OF COPPER FROM OXIDE COPPER ORE BY FLOTATION AND LEACHING Kiraz, Emirhan M.S., Department of Mining Engineering Supervisor: Prof. Dr. Mustafa mit Atalay December 2014, 65 pages The aim of this study was the recovery of copper from the oxide copper ore by froth flotation and agitating sulphuric acid (H 2 SO 4) leaching

  • Feasibility Study of Differential Flotation of Cu–Pb–Zn Feasibility Study of Differential Flotation of Cu–Pb–Zn

    Aug 28, 2020 In this research, flotation of copper, lead and zinc minerals from a copper oxide–sulfide 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 to

  • Review, Evolution and Optimization of the Kansanshi Review, Evolution and Optimization of the Kansanshi

    sulphidisation 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 of

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

    Nov 09, 2020 As with oxide ores, SX-EW tech is used to recover copper from a pregnant leach solution. Secondary sulfides, which are formed by supergene secondary enrichment, are resistant to sulfuric leaching

  • ROASTING OF SULFIDE MINERALS ROASTING OF SULFIDE MINERALS

    ROASTING OF SULFIDE MINERALS In addition to common metals like copper, lead, zinc, and nickel a number of other metals such as antimony, bismuth, cadmium, cobalt, mercury, and molybdenum occur as sulfide minerals. Sulfides are not reduced with the most widely used redu-cing agents, carbon and hydrogen, because the free energy change for the

  • EFFECT OF GRINDING CHEMISTRY ON THE EFFECT OF GRINDING CHEMISTRY ON THE

    Oxidised sulphide mineral and oxide mineral were studied separately in the first approach. The oxidised sulphide ore was studied by artificially oxidising a copper sulphide ore to various states during 16 months. For each oxidation state, the effect of chemistry was

  • The Complete Collection of Copper Beneficiation Reagents The Complete Collection of Copper Beneficiation Reagents

    Jul 12, 2021 It has weaker collection capacity for pyrite, but better selectivity and faster flotation speed. Better separation effect than xanthate can be obtained by using it in the separation of copper-lead sulfide ore. Hydroximic Acid It is mainly used for the flotation of copper oxide ore, which can be used for directly flotation or sulphidizing flotation

  • Process for the selective separation of base metal Process for the selective separation of base metal

    U.S. Pat. No. 1,916,196 to Ayer, issued on July 4, 1933, is directed to a process for simultaneous flotation of mixed copper sulfides (sulfides, oxidized sulfides, and carbonates) using soluble sulfides, such as Na 2 S, as conditioning additives together with other sulfidizing agents at a carefully controlled pH range between 4.8 and 6.5, the

  • US3827557A - Method of copper sulfide ore flotation US3827557A - Method of copper sulfide ore flotation

    A novel flotation promoter used in the concentration of copper bearing ores for the efficient selective flotation of copper values, including chalcopyrite, with suppression of iron pyrites; the promoter comprising a sodium sulfate of an aliphatic hydrocarbon having a carbon chain in excess of 12 carbons and chemically combined with at least one mole of the C2-C3 alkylene oxides

  • Flotation of mixed copper oxide and sulphide minerals with Flotation of mixed copper oxide and sulphide minerals with

    Mar 01, 2009 Generally copper oxide minerals do not respond well to traditional sulphide copper collectors and require alternative flotation techniques to concentrate the copper oxides. The classical method involves controlled potential sulphidisation (CPS) to sulphidise the surface of the oxide minerals by the addition of a sulphidisation agent, such as sodium hydrogen sulphide (NaHS)

  • Flotation of mixed oxide sulphide copper-cobalt minerals Flotation of mixed oxide sulphide copper-cobalt minerals

    Jul 01, 2019 All sulphide minerals and copper oxides are concentrated in the sulphide flotation stage, whilst cobalt oxides are less concentrated or equal to the content in the feed. When comparing the information from Table 6 with the recovery per mineral in Table 4 , it follows that a higher recovery of valuable minerals is accompanied with a lower enrichment

  • (PDF) Flotation of mixed copper oxide and sulphide (PDF) 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 naturally together

  • Flotation of mixed copper oxide and sulphide minerals Flotation of mixed copper oxide and sulphide minerals

    copper sulphides present in the blend were bornite and chalcopyrite, while the oxides were malachite and minor azurite. From previous flotation investigations of mixed copper oxide and sulphide

  • Copper Oxide Flotation - Mineral Processing & Metallurgy Copper Oxide Flotation - Mineral Processing & Metallurgy

    Jul 25, 2013 Oxide copper minerals generally do not respond well to traditional methods of concentration using known sulfide copper collectors. Their recovery in a froth flotation circuit requires special treatment

  • AN INVESTIGATION OF COPPER RECOVERY FROM A AN INVESTIGATION OF COPPER RECOVERY FROM A

    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. The

  • Acid leaching of oxide–sulfide copper ore prior the Acid leaching of oxide–sulfide copper ore prior the

    the copper metal oxide ore parties are usually pro-cessed by leaching, followed by solvent extraction, and electrowinning, while the rest of ore deposit is pro-cessed by flotation, having considerable technological problems, and usualy a low percent of copper recovery may be achieved. Hence, the major fraction of oxide and a part of sulfide minerals may be lost and thus

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