cobalt recovery by flotation

  • Cobalt Konkola Copper Mines Plc

    Cobalt is also used in making of cutting and wear-resistant materials. Cobalt s use in rechargeable batteries is one of its fastest growing applications. The cobalt found at KCM s mines is produced in an alloy form known as copper-cobalt alloy which is marketed to cobalt processing plants around the world.

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  • Flotation of mixed oxide sulphide copper-cobalt minerals

    Jul 01 2019 · The recovery of cobalt during the oxide flotation stage is shown in Fig. 7-B. In all cases there is an increase in cobalt recovery but differences between the response of cobalt oxide minerals to the selected collectors are larger than observed for the cobalt sulphide minerals. For dithiophosphate collector (DF245) the cobalt recovery

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  • Cobalt and copper recovery from the ancient flotation

    The ancient flotation tailings from Lefke Cyprus have a potential for non-ferrous metals such as cobalt and copper from more than 9.5 million tons of reserves containing 0.38 Cu 0.032 Co and 22.6 Fe. Recovery of cobalt and copper from these tailings can provide great benefits from economic and environmental perspectives.

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  • Processes Free Full-Text Recovering Cobalt and Sulfur

    The flotation process was used to recover cobalt and sulfur in the cobalt-bearing V–Ti tailings. The results showed that an optimized cobalt–sulfur concentrate with a cobalt grade of 2.08 sulfur content of 36.12 sulfur recovery of 85.79 and cobalt recovery and 84.77 were obtained by flotation process of one roughing three sweeping

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  • FinnCobalt reports succesfull flotation testwork results

    The aim of the nickel-cobalt bench scale flotation test work was to produce a nickel concentrate with a grade of 6 Nickel with maximum recovery and suitable for leaching. This target was achieved as the concentrate grade of Ni 6.2 with recovery 79.8 and cobalt grade 1.5 with recovery 77.6 was produced already after the 1 st cleaning stage.

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  • Recovery of cobalt nickel and copper from slags using

    Increasing the coal addition did not significantly increase the recovery of cobalt. Increasing the batch mass of slag from 500 kg to 1000 kg and increasing the reduction period by 75 resulted in increases in cobalt recovery from 71 to 86 and from 70 to 82 for coal additions of 9 and 11 respectively.

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  • Recovery of copper nickel and cobalt from acidic pressure

    Jun 01 2007 · Q.W. Li K. Huang Y.R. Chen et al.Study on the recovery of copper nickel and cobalt from the leach solution of the Pt–Pd flotation concentrates Chinese Journal of Rare Metals 29 (S1) (2005) pp. 38-41

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  • Production of cobalt from copper-cobalt ores on the

    The recovery of cobalt by flotation is typically poor usually below 60 and in many instances it is well below this value. The sulphide and oxide flotation circuit at Konkola Copper Mines (KCM) is shown in Fig. 10. The plant is a two-stage circuit consisting of a sulphide flotation section and an oxide flotation

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  • Mineralogical Prediction of Flotation Performance for a

    That means that the copper-bearing particles are initially recovered followed by carrollite in later stages of the flotation process. For cobalt the maximum final grade was observed for sample S9 with 13.0 Co and a cobalt recovery of 66.5 while the highest final recovery was observed for sample S8 with 74.4 cobalt recovery and a final

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  • Recovery of Cobalt and Copper From Complex Sulfide

    COBALT RECOVERY INITIATIVE WITH COBALT BLUE grinding and flotation circuit that will recover high quality copper concentrate The best method of recovering cobalt is being investigated and the testing regime contemplated by the COB MOU is an important positive step in this Flotation of NickelCopper Sulphide Ore Optimisation

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  • Grid Metals Reports Increased Nickel Cobalt Recovery to

    May 08 2019 · Summary of Results A medium grade Mayville sample selected by Grid Metals grading 0.48 Cu 0.24 Ni 0.02 cobalt was subjected to a laboratory scale flotation program of

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  • Flotation of Nickel-Copper Sulphide Ore Optimisation of

    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

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  • cobalt recovery by flotationOpass

    Test work indicated that the recovery of copper and cobalt in the flotation process would be in the order of 55 to 65 for copper and 40 to 50 for cobalt.

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  • Recovery of cobalt and copper through reprocessing of

    Dec 01 2013 · Recovery of copper and cobalt through flotation of tailings The roughing flotation of tailings was achieved at laboratory (14 min) using a Denver D-12 mechanical machine with the impeller speed kept at 1350 rpm ( Fig. 3 ).

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  • Achieving High Flotation Recoveries from Browns

    The real cobalt recovery breakthrough comes from flash flotation of the whole mill discharge rather than the more usual flash flotation of cyclone underflow. Flash flotation tailings are ground to –38 microns and are floated under normal flotation conditions with only the scavenger concentrates being reground to 20 microns.

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  • Cobalt extractionWikipedia

    Addition of hydrogen gas to saturation precipitates cobalt powder with a purity of approximately 99.6 . Recovery from copper-cobalt oxide concentrates. The ore is comminuted and the cobalt rich oxides are separated by froth flotation. The cobalt-bearing concentrate is then mixed with lime and coal and then melted in a reducing atmosphere.

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  • News Releases Global Energy Metals Corp.

    The total flotation recovery of metals to concentrates achieved was 93 copper 93 cobalt and 80 gold. The concentrate grades and recoveries are shown below The cobalt concentrate was then treated using the Cobalt Blue Process in Stage Two Step 1 Thermal decomposition of the pyrite where all the pyrite (FeS2) was converted to pyrrhotite

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  • NIOSHTIC-2 Publications SearchContinuous

    Mineralogical analyses showed the cobalt present as a distinct mineral phase predominately siegenite amenable to a physical separation method such as froth flotation. Flotation was chosen for recovery because of easy adaptation by the mills.

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  • Recovery of Cobalt and Copper From Complex Sulfide

    COBALT RECOVERY INITIATIVE WITH COBALT BLUE. COBALT RECOVERY INITIATIVE WITH COBALT BLUE grinding and flotation circuit that will recover high quality copper concentrate The best method of recovering cobalt is being investigated and the testing regime contemplated by the COB MOU is an important positive step in this

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  • Mineralogical Prediction of Flotation Performance for a

    That means that the copper-bearing particles are initially recovered followed by carrollite in later stages of the flotation process. For cobalt the maximum final grade was observed for sample S9 with 13.0 Co and a cobalt recovery of 66.5 while the highest final recovery was observed for sample S8 with 74.4 cobalt recovery and a final

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  • Flotation Of Cu And Nifamigliavaltellineseroma

    Flotation of Nickel-Copper Sulphide Ore Optimisation of. the flotation recovery of Ni Cu and Co from a nickel-copper sulphide ore. The effect on flotation performance of various parameters such as pH collector dosage solids and depressant dosage at different levels was investigated.

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  • News Releases Global Energy Metals Corp.

    The total flotation recovery of metals to concentrates achieved was 93 copper 93 cobalt and 80 gold. The concentrate grades and recoveries are shown below The cobalt concentrate was then treated using the Cobalt Blue Process in Stage Two Step 1 Thermal decomposition of the pyrite where all the pyrite (FeS2) was converted to pyrrhotite

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  • (PDF) Improving the efficiency of oxide copper–cobalt ores

    The recovery of copper and cobalt was performed using flotation to increase the concentration of copper and cobalt. Flotation of the oxidized ore was performed with fatty acid type Rinkalore

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  • Recovery of copper and cobalt in the comparative flotation

    flotation tests in order to recovery copper and cobalt. This paper investigates the effect of potassium amyl xanthate (PAX) and sodium dibutyl dithiophosphate (DANA) performance on both copper and cobalt recovery in single roughing flotation. The effect of pH on the flotation is proposed. Some parameters were

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  • FPX Nickel Achieves Recoveries up to 99.5 in Production

    Jan 07 2020 · Ramu Nickel Cobalt Operation (Note 1) Feedstock type Flotation concentrate. Whole ore. Feedstock grade 59-65 Ni. 1.09 Ni. Pressure 750 kPa. 4 300 kPa. Temperature 150°C. 250°C. Target extraction rate (recovery) >98 >95 . Target residence time 60 minutes. 60 minutes

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  • milling and flotation of slow cooled copper slag

    Recovery of cobalt from converter slag of Chambishi Copper techniques such as slag cleaning slow cooling of the slag followed by milling and flotation are inappropriate for cobalt recovery

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  • Production of cobalt from copper-cobalt ores on the

    The second generic flowsheet starts with the flotation of copper and cobalt minerals. The concentrate is then roasted to a calcine which is then treated hydrometallurgically in a manner similar to

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  • Recovery of metal values from copper slags by flotation

    In the flotation step a copper concentrate containing approximately 11 Cu was produced with a 77 recovery while 93 of the cobalt stayed in the tailings.

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  • Recovery of cobalt and copper through reprocessing of

    Dec 01 2013 · Recovery of copper and cobalt through flotation of tailings The roughing flotation of tailings was achieved at laboratory (14 min) using a Denver D-12 mechanical machine with the impeller speed kept at 1350 rpm ( Fig. 3 ).

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  • Cobalt Flotation Recovery911metallurgist

    Research using a continuous flotation test unit has resulted in a flowsheet that allows the recovery of 70 pct or more of the cobalt in Missouri lead ore copper concentrates at grades of greater than 3 pct Co or 7 pct combined Ni-Co. This can be accomplished on feeds grading as low as 0.25 pct Co.

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  • Mineralogical Prediction of Flotation Performance for a

    That means that the copper-bearing particles are initially recovered followed by carrollite in later stages of the flotation process. For cobalt the maximum final grade was observed for sample S9 with 13.0 Co and a cobalt recovery of 66.5 while the highest final recovery was observed for sample S8 with 74.4 cobalt recovery and a final

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  • milling and flotation of slow cooled copper slag

    Recovery of cobalt from converter slag of Chambishi Copper techniques such as slag cleaning slow cooling of the slag followed by milling and flotation are inappropriate for cobalt recovery

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  • Cobalt extractionWikipedia

    Addition of hydrogen gas to saturation precipitates cobalt powder with a purity of approximately 99.6 . Recovery from copper-cobalt oxide concentrates. The ore is comminuted and the cobalt rich oxides are separated by froth flotation. The cobalt-bearing concentrate is then mixed with lime and coal and then melted in a reducing atmosphere.

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  • USAFlotation of cobaltiteGoogle Patents

    USA US8309A US830948A USA US A US A US A US 8309 A US8309 A US 8309A US 830948 A US830948 A US 830948A US A US A US A Authority US United States Prior art keywords cobaltite acid flotation iron copper Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.

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  • COBALT PROCESSING DEVELOPMENTS K G Fisher Bateman

    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 recoverede.g. the Kolwezi Tailings Project.

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  • Achieving High Flotation Recoveries from Browns

    The real cobalt recovery breakthrough comes from flash flotation of the whole mill discharge rather than the more usual flash flotation of cyclone underflow. Flash flotation tailings are ground to –38 microns and are floated under normal flotation conditions with only the scavenger concentrates being reground to 20 microns.

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