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Flotation of copper and cobalt

Download Citation | Flotation and Tailing Discarding of Copper Cobalt Sulfide Ores Based on the Process Mineralogy Characteristics | The mineral composition of copper–cobalt ores is more complex

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  • Recovery of copper and cobalt in the comparative flotation
    Recovery of copper and cobalt in the comparative flotation

    2) For cobalt Fig. 8 shows that the rate flotation constant is better by Fig.6 : Variation of cobalt recovery vs time at different pH DANA at natural pH and by PAX at pH=11 from the values 28 www.ijeas.org Recovery of copper and cobalt in the comparative flotation of a sulfide ore using xanthate and dithiophosphate as collectors beginning to

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  • 2-Recovery of Copper and Cobalt from Converter Slag
    2-Recovery of Copper and Cobalt from Converter Slag

    Key words: Converter slag, flotation, copper, cobalt, sulphurization. 1. Introduction Copper slag is produced in large amounts in seven copper smelter plants in Chile, and it is estimated that around 4 million tons of slag are disposed every year and another 40 to

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  • Continuous Flotation Testing To Recover Cobalt From
    Continuous Flotation Testing To Recover Cobalt From

    salable copper product and would involve a major capital investment in a leach and electrowinning plant to recover the copper and the lead from the leach liquor. In laboratory flotation research, the first attempt was to float the cobalt-bearing siegenite from the chalcopyrite.s This proved impossible except for some Halimond tube tests

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

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  • Assessment of water quality effects on flotation of copper
    Assessment of water quality effects on flotation of copper

    Oct 15, 2014 For each flotation test, one kg of the crushed ore has been subjected to wet grinding in ball mill for obtaining granulometry of d 80 of 74 μm and flotation pulp with specific gravity of 1200 g/L. The ore has been initially subjected to talc pre-flotation during 3 min followed by copper–cobalt bulk rougher for 30 min.The talc pre-flotation has been carried out with 200 g/t sodium silicate

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  • Cobalt Ore - an overview | ScienceDirect Topics
    Cobalt Ore - an overview | ScienceDirect Topics

    Srdjan M. Bulatovic, in Handbook of Flotation Reagents: Chemistry, Theory and Practice, 2010 Publisher Summary. The process of flotation of oxide copper and copper cobalt ores involves two basic flotation methods: fatty acid flotation of oxide copper minerals from siliceous ore and sulphidization of oxide copper minerals followed by flotation using sulfhydryl collectors, such as xanthate from

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  • US4460459A - Sequential flotation of sulfide ores - Google
    US4460459A - Sequential flotation of sulfide ores - Google

    A sequential flotation process for the recovery of high-grade concentrates of copper, lead and cobalt-nickel from sulfide ores is provided. A primary grind ore pulp is conditioned with SO 2 as H 2 SO 3 under intense aeration, and the conditioned pulp subjected to sequential flotation, with regrinding and conditioning of a copper rougher concentrate obtained in the first flotation step for copper

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  • COBALT PROCESSING DEVELOPMENTS K G Fisher
    COBALT PROCESSING DEVELOPMENTS K G Fisher

    The copper flotation step is inherently inefficient for cobalt, with recoveries typically from 40% for oxides up to 80% for sulphides, so there is a substantial amount of cobalt contained in tailings dams that could be recovered – e.g. the Kolwezi Tailings Project

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  • Projects — Missouri Cobalt
    Projects — Missouri Cobalt

    Froth flotation is particularly effective in recovering cobalt, nickel and copper minerals from above ground ore stocks and underground ores. The MMPP is designed to handle 300-360 tons per day of feed and can produce 1000-1500 tons per month of feedstock for the Hydrometallurgy Refining Process

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  • K. FLOTA TION OF A SILICATED OXIDE COPPER
    K. FLOTA TION OF A SILICATED OXIDE COPPER

    silicated oxide copper-cobalt ores. Flotation recoveries of about 94.8 % Cu and 90.1 % Co in a concentrate Ore samples assaying in average 17.5 % Cu and 1.5 % Co were recorded. A standard rougher-scavenger circuit has been recommended, since cleaning t1otation will induce important metal loss in tailings

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  • (PDF) Application of Knelson concentrator for
    (PDF) Application of Knelson concentrator for

    The beneficiation of high talc-containing copper–cobalt flotation tailings was studied by centrifugal gravity concentration. It was found that copper and cobalt minerals were finely disseminated in the gangue matrix so that conventional gravity

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  • Improving the efficiency of oxide copper–cobalt ores
    Improving the efficiency of oxide copper–cobalt ores

    Abstract Sulphidising flotation of oxide copper–cobalt ores with sodium hydrosulphide used as sulphidising agent is common practice in Katanga, Democratic Republic of Congo. From laboratory investigations, sodium hydrosulphide proved to enhance flotation selectivity of copper and cobalt towards the gangue minerals, while ammonium sulphide emerged as a strong non-selective sulphidiser

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  • US6428604B1 - Hydrometallurgical process for the recovery
    US6428604B1 - Hydrometallurgical process for the recovery

    A hydrometallurgical process for the recovery of nickel and cobalt values from a sulfidic flotation concentrate. The process involves forming a slurry of the sulfidic flotation concentrate in an acid solution, and subjecting the slurried flotation concentrate to a chlorine leach at atmospheric pressure followed by an oxidative pressure leach

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  • Copper-Cobalt ores - Danafloat
    Copper-Cobalt ores - Danafloat

    Copper is separated from the cobalt in the bulk concentrate by raising the pH up to at least 11 which depresses the cobalt minerals. Cobalt depression can be enhanced by small cyanide dosages. If the cobalt is found with chalcopyrite, bulk flotation can be carried out with xanthate at pH 10, and separation made at pH 4 with an amine and combinations of fatty acid to recover the cobalt minerals. Download

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  • Flotation of Nickel-Copper Sulphide Ore: Optimisation of
    Flotation of Nickel-Copper Sulphide Ore: Optimisation of

    depressant dosage, 100g/t. Relative significance of flotation parameters (based on difference between max and min. values) indicates that pH has the most significant effect on the recovery of nickel, copper and cobalt during flotation. Analysis of variance showed that pH and depressant dosage were the most significant parameters affecting the

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  • (PDF) A Review of the Flotation of Copper Minerals
    (PDF) A Review of the Flotation of Copper Minerals

    From plant practice, the treatment of oxide copper and copper cobalt ores is being carried out by the following methods: a) Sulphi disation flotation m ethod, b) The carboxylic / fatty acid

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  • Mineralogical Prediction of Flotation Performance for a
    Mineralogical Prediction of Flotation Performance for a

    Leave One Out Cross Validation (LOOCV) revealed that the final copper and cobalt grades are predicted with an R2 of 0.80 and 0.93 and Root Mean Square Error of Cross Validation (RMSECV) of 4.41% and 1.34%. The recovery of cobalt and copper with time can be predicted with an R2 of 0.94 for both and an overall test error of 4.70% and 5.14%

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  • NICKEL AND COBALT ORES: FLOTATION
    NICKEL AND COBALT ORES: FLOTATION

    Developments in Flotation Flotation of Nickel Sul\de Minerals Collectorless Wotation It is known that chalcopyrite and pyrrhotite can be Soated without collectors at electrode potentials of #400 mV and #50 mV respectively, and pyrite does not Soat even at #700 mV. The underlying mechanism causing hy-drophobicity, although obscure, is attributed

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