• SOLVENT EXTRACTION IN HYDROMETALLURGICAL …

    using hydrometallurgical methods (non-oxidative and atmospheric leaching) in order to recover copper and accompanying metals. Non-oxidative leaching is a fast, selective and easy controllable process. Atmospheric leaching with sulphuric acid was found to be surprisingly efficient for copper, zinc and cobalt recovery from the by-

  • DESIGN OF COPPER-COBALT HYDROMETALLURGICAL …

    0.20 g/L copper in the final raffinate; that progresses to the cobalt recovery. This level of copper is an issue with cobalt product quality and needs to be reduced to less than 1 ppm (Kongolo et al, 2005). Secondary copper removal Preparation of copper SX plant 'raffinate' for downstream cobalt production needs the copper

  • Recovery of copper and cobalt from ancient slag

    Recovery of copper and cobalt from ancient slag ... ery of copper and cobalt and pr oduction of magnet grade iron oxide by a pyro-hydrometallurgical route. The fayalitic slag

  • JOM 0610: Cobalt-Its Recovery, Recycling, and Application

    Also, SuperLig ® 176 can be used for the combined removal of copper and Fe(III) together with nickel from the cobalt electrowinning electrolyte. For cobalt recovery in a copper sulfide ore process, copper is removed via electrowinning and iron, zinc, and more copper are precipitated by increasing the pH of the solution. Cobalt Winning Operation

  • Flowsheet Options for Cobalt Recovery in African Copper ...

    This overview discusses selected modern applications of ion exchange in hydrometallurgical processes for uranium, precious metals, copper, cobalt, nickel, zinc, and the rare-earth elements, and ...

  • A review on hydrometallurgical extraction and recovery of ...

    A review on hydrometallurgical extraction and recovery of cadmium from various resources . ... Development of a hydrometallurgical route for the recovery of zinc and manganese from spent alkaline batteries ... Leach solution of zinc ash has been purified by precipitating impurities such as copper, nickel or cobalt with zinc dust according to ...

  • NICKEL AND COBALT RECOVERY FROM MESABA …

    data) was prepared and used for bench test work which evaluated the performance of the following impurity removal circuits: • Iron/Aluminum Removal • Zinc/Copper/Cadmium Removal • Nickel/Cobalt Product Precipitation The impurity removal circuits were required to …

  • Cobalt extraction - Wikipedia

    Cobalt extraction refers to the techniques used to extract cobalt from its ores and other compound ores. Several methods exist for the separation of cobalt from copper and nickel.They depend on the concentration of cobalt and the exact composition of the used ore.

  • Copper recovery using leach/solvent extraction ...

    Copper recovery using leach/solvent extraction/electrowinning technology 65 (Figure 2) and a catalytic amount of LIX 63, was introduced in 19657 and in March 1968 the first commercial copper L/SX/EW operation, the Bluebird plan of Ranchers

  • NICKEL AND COBALT RECOVERY FROM MESABA …

    NICKEL AND COBALT RECOVERY FROM MESABA CONCENTRATE By K Mayhew, R Mean, L O'Connor and T Williams – CESL* * CESL focuses on sustainable external and internal growth opportunities, technology transfer and improvement projects. Growth opportunities are pursued through the

  • Hydrometallurgical process for recovery of cobalt from ...

    A hydrometallurgical process has been developed for the recovery of cobalt from a zinc plant residue. The residue contains a great quantity of active carbon and zinc sulfate. In addition, it contains naphthol derivative complexes with cobalt, nickel, iron, copper, and other metals.

  • Hydrometallurgy - Wikipedia

    Hydrometallurgy is a method for obtaining metals from their ores. It is a technique within the field of extractive metallurgy involving the use of aqueous chemistry for the recovery of metals from ores, concentrates, and recycled or residual materials. Metal chemical processing techniques that complement hydrometallurgy are pyrometallurgy, vapour metallurgy and molten salt electrometallurgy.

  • Recovery of Copper Metal through Reprocessing of …

    recovering copper metal from residues (2.01% Cu and 0.32% Co) through their reprocessing based on the sulphuric acid leaching prior to the recovery of copper metal through cementation with iron shavings. The results from the experiments have showed that the leaching of copper (≈ 90%) and cobalt (86%) was successful when conducted

  • HYDROMETALLURGICAL PROCESS FOR EXTRACTION OF …

    hydrometallurgical recovery of base and precious metals, using selective leaching agents from WPCBs was developed. Block diagram for hydrometallurgical processing of WPCBs using sulfuric acid and thiourea leaching is shown on Figure 3. Fig.3. Block diagram for hydrometallurgical recovery of base and precious metals [9]

  • 293 HYDROMETALLURGICAL ROUTE FOR COPPER, ZINC ... - …

    The copper extraction value of 43 % at acid concentration of 0.1 M was achieved what means 10-times higher acid concentration used caused about 9-times higher copper extraction. From figure 3 it follows that up to the acid concentration of 0.25 M the copper extraction is fast and rather linearly increasing and then it does not increase so much.

  • Processing of Konkola copper concen- trates and Chingola ...

    Processing of Konkola copper concen-trates and Chingola refractory ore in a ... the potential for recovery of cobalt from hydrometallurgical leach liquors is considered. The Konkola deep mining project ... this route for treatment of copper-gold ores, in particular, has

  • Minerals | Free Full-Text | Recovery of Cobalt as Cobalt ...

    A hydrometallurgical route for the recovery of Co from cobalt tailings was developed based on the bioleaching and selective sequential extraction technologies. It is found that 96.51% Co and 26.32% Cu can be selectively extracted from the cobalt tailings at …

  • OutOtec HydrOmetallurgical Nickel PlaNts aNd PrOcesses

    recovery, typically by electrowinning. In the same solvent extraction plant where nickel is extracted, cobalt and a number of impurity metals, such as iron, aluminum, zinc, cadmium, copper, calcium, manganese and magnesium, may also be treated. All metals for which an extraction reagent is available can be extracted with the advanced

  • Copper and cobalt recovery from pyrite ashes of a ...

    The pyrite ashes formed as waste material during the calcination of concentrated pyrite ore used for producing sulphuric acid not only has a high iron content but also contains economically valuable metals. These wastes, which are currently landfilled or dumped into the sea, cause serious land and environmental pollution problems owing to the release of acids and toxic substances.

  • 2-Recovery of Copper and Cobalt from Copper Slags as …

    Recovery of Copper and Cobalt from Copper Slags as Selective 389 intervals. By treatment with hot water, recovery of copper and cobalt from the ore mixture was aimed selectively. 2. Experiment 2.1 Sample Preparation The slag sample used in this investigation is a composite from different levels of the copper …

  • Flowsheet Options for Cobalt Recovery in African Copper ...

    African Copperbelt operations have traditionally focused on copper production; however, it has now become imperative to also consider cobalt recovery from these ores. A plethora of processing routes is possible. Most hydrometallurgical flowsheets recover cobalt from the raffinate of the low-grade copper solvent-extraction circuit.

  • Cobalt processing | Britannica.com

    Different reagents are used to attract the cobalt minerals to the bubbles in preference to copper. Cobalt concentrates, which can contain as much as 15 percent cobalt, are then processed further, using either pyrometallurgical or hydrometallurgical extractive processes. Extraction and refining From copper and nickel processing

  • process recovery hydrometallurgical - YouTube

    May 12, 2019· HYDROMETALLURGICAL PROCESS FOR EXTRACTION OF METALS FROM ELECTRONIC WASTE PART II DEVELOPMENT OF THE PROCESSES FOR THE RECOVERY OF COPPER FROM PRINTED CIRCUIT BOARDS (PCB) eljko Kamberovi1 ...

  • Cobalt Recovery from Waste Catalysts (Petroleum Refining ...

    recovery of copper and nickel. Cobalt is used for making: super alloys (for parts in aircraft engines), corrosion and wear resistant alloy, high speed stock, catalysts in petro- leum industries cemented carbides and diamond tools, magnetic materials etc. [3]. In India cobalt …

  • Cobalt Recovery from Waste Catalysts (Petroleum Refining ...

    In India cobalt is mainly produced as by-product during the electrolytic recovery of copper and nickel. Cobalt is used for making: super alloys (for parts in aircraft engines), corrosion and wear resistant alloy, high speed stock, catalysts in petroleum industries cemented carbides and diamond tools, magnetic materials etc. [3].

  • Review of hydrometallurgical recovery of zinc from ...

    Development of a hydrometallurgical route for the recovery of zinc and manganese from spent alkaline batteries ... The precipitate constitutes copper, cadmium, cobalt, nickel etc. along with zinc. During certain stage of zinc processing, a residue containing cobalt and zinc is generated called the beta cake. ... Hydrometallurgical recovery of ...

  • Hydrometallurgical separation of copper and cobalt from ...

    From the results obtained in the present work, a flowsheet was proposed for a hypothetical hydrometallurgical route to the recovery of copper and cobalt from spent LIBs using ATPS as liquid-liquid extraction technique . The proposed process involves important steps including those studied in this work, such as the recycling of polymers and ...

  • Cobalt extraction - Wikipedia

    Cobalt extraction refers to the techniques used to extract cobalt from its ores and other compound ores. Several methods exist for the separation of cobalt from copper and nickel.They depend on the concentration of cobalt and the exact composition of the used ore

  • Hydrometallurgical Extraction of Copper and Cobalt from ...

    hydrometallurgical processing route. The ore is leached in sulphuric acid in reducing ... The results showed that a +63-75µm size fraction had the highest grade of copper and cobalt and was thus used for all the experiments undertaken. The results also indicated ... This compares well to about 40-60% recovery reported when leaching in acid.

  • Recovery of cobalt, nickel, and copper from slags, using ...

    Mintek has been working on the recovery of cobalt, and the associated valuable metals, from slags, since 1988, using DC-arc furnace technology to effect selective carbothermic reduction of the oxides of cobalt, nickel, copper, (and zinc, where present), while retaining the maximum possible quantity of iron as oxide in the slag.