cobalt sulphide flotation process

  • Flotation of mixed oxide sulphide copper-cobalt minerals

    Jul 01, 2019· Three cobalt-bearing oxide minerals are observed in the mixed ore, i.e. heterogenite, kolwezite and cupro-asbolane, while carrollite is the only cobalt-bearing sulphide mineral. A two-stage rougher-scavenger flotation process is used in which sulphides are extracted from the ore first.Cobalt flotation Froth Flotation (Sulphide & Oxide,To participate in the 911Metallurgist Forums, be sure to JOIN & LOGIN Use Add New Topic to ask a New Question/Discussion about Flotation. OR Select a Topic that Interests you. Use Add Reply = to Reply/Participate in a Topic/Discussion (most frequent). Using Add Reply allows you to Attach Images or PDF files and provide a more complete input. Use Add Comment = to comment on someone else’s

  • Flotation of mixed oxide sulphide copper-cobalt minerals

    to a lesser extent chrysocolla. Three cobalt-bearing oxide minerals are observed in the mixed ore, i.e.hetero-genite, kolwezite and cupro-asbolane, while carrollite is the only cobalt-bearing sulphide mineral. A two-stage rougher-scavenger flotation process is used in which sulphides are extracted from the ore first. In the secondNICKEL 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

  • cobalt processing Uses, Supply, & Facts Britannica

    The most important sulfide sources, the copper-cobalt ores of Congo (Kinshasa) and Zambia, are processed in the conventional manner to produce a copper-cobalt concentrate. This is then treated by flotation to separate a cobalt-rich concentrate for treatment in the cobalt circuit.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.

  • 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 recovered e.g. the Kolwezi Tailings Project.(PDF) Mineralogical Prediction of Flotation Performance,As part of a study investigating the influence of mineralogical variability in a sediment hosted copper–cobalt deposit in the Democratic Republic of Congo on flotation performance, the flotation of.

  • Copper-Cobalt ores Danafloat

    The tails produced in the first differential flotation step is followed by a pyrite and pyrrhotite flotation stage using xanthate and MBT, leaving the cobalt minerals in the flotation cell tails. The cobalt minerals are then floated by using sulphuric acid to decrease the pulp pH to 4. Sodium sulphide Cobalt Axis House,The Axis House flotation reagent range for Cobalt consists of collectors for oxide and sulphide Cobalt, depressants for typical associated gangue minerals as well as specialised frothers. The reagent range also covers the hydrometallurgical process with high purity Magnesium Oxide products. FLOTATION ˜ˇ˘ ˚

  • Novel approach for processing complex carbonate-rich

    Jan 15, 2021· The sulphide flotation stage displays very good results with respect to the mineralogical deportment data: 70% of the copper and 33.75% of the cobalt are recovered during this stage (Fig. 4a), which matches well with the respective deportments of these metals in the sulphide phases (Fig. 2b). The performance of the oxide flotation stageRecovery of Co2+ Ions from Aqueous Solutions by Froth,cobalt ions by applying flotation after they were precipitated as sulfides, a process which has received little attention so far. The effectiveness of this process was then compared to Co2+ recovery by anionic-surfactants flotation. Both dispersed- and dissolved-air flotation have been applied,

  • RECOVERY OF COBALT AND NICKEL BY ATMOSPHERIC

    Recovery of cobalt and nickel in atmospheric leaching of flotation sulfide concentrate 195 where: R % metal leaching recovery, % c metal concentration in the solution, g/dm3 (mg/dm3) V leaching solution volume, dm3 m mass of the concentrate, g metal content in the concentrate, % (g/Mg).Nickel cobalt mining extraction procedures Industrial,Sep 06, 2019· Sherritt Gordon Process. The nickel and cobalt metallurgy processes begin with an initial treatment of the mineral, re-concentrating it through crushing and flotation/gravity and obtaining a “speiss”, rich in cobalt and nickel. The process begins by adding the sulfide-associated mineral to a reactor with sulfuric acid and pressurised air.

  • A New Process for Cobalt Nickel Separation

    excellent cobalt-nickel separation primary leach liquor by Cyanex 272. However, manganese extraction from the leach liquor along with cobalt could not be avoided, thus increasing the cost of the process. For sulphide ores, there is another alternative; if the ore can be concentrated by flotation, matte smelting is used instead of leaching.Cobalt extraction Wikipedia,Recovery from copper-cobalt sulfide concentrates. The ores are treated by a sulfatizing roast in a fluidized bed furnace to convert copper and cobalt sulfides into soluble sulfates and iron into insoluble hematite.The calcine is subsequently leached with sulfuric acid from the spent copper recovery electrolyte.Oxide concentrates are introduced at this leaching step to maintain the acid balance

  • Production of cobalt from copper-cobalt ores on the

    Sep 01, 2020· A specific cobalt flotation circuit is run at KCM’s Nchanga concentrator. The ore from the Nchanga open pit contains pockets of ore with higher grades of cobalt, typically about 0.3% cobalt and 1.3% copper. This ore is processed in campaigns through the cobalt flotation circuit, which is illustrated schematically in Fig. 11. The concentrate(PDF) A Review of the Flotation of Copper Minerals,control of reagent additions is the most importan t part of the flotation process. Flotation reagents can be sulphide oxide ores and oxide copper/cobalt ores varies from one ore type to the

  • Major Mines & Projects Idaho Cobalt Operations (ICO) Project

    The concentrator plant is designed to produce a single concentrate product containing copper and cobalt which are derived via a bulk sulphide flotation circuit flowsheet. Rougher Flotation Mill final product gravitates in a pipe launder to the concentrator building where the slurry is sampled prior to being discharged into the agitatedUnlocking Disseminated Nickel Sulphides using the CESL,sulphide ores has proven to be more challenging even though the ore grades of some of the worlds largest most economic deposits are often reasonable (0.6 to 0.9%).[7] The problem has been related to processing; the conventional flotation process on low-grade disseminated sulphide ores tends to

  • Hydrometallurgical process for the recovery of nickel and

    A process for the extraction, separation and recovery of nickel, cobalt, and copper values from a nickel-cobalt-copper-iron sulfide containing sulfidic flotation concentrate comprising: preparing a slurry containing said sulfidic flotation concentrate and contacting said slurry with an oxygen and chlorine-containing gaseous stream in anFlotation of mixed oxide sulphide copper-cobalt minerals,Three cobalt-bearing oxide minerals are observed in the mixed ore, i.e. heterogenite, kolwezite and cupro-asbolane, while carrollite is the only cobalt-bearing sulphide mineral. A two-stage rougher-scavenger flotation process is used in which sulphides are extracted from the ore first.

  • 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.Cobalt Axis House,The Axis House flotation reagent range for Cobalt consists of collectors for oxide and sulphide Cobalt, depressants for typical associated gangue minerals as well as specialised frothers. The reagent range also covers the hydrometallurgical process with high purity Magnesium Oxide products. FLOTATION ˜ˇ˘ ˚ ˜ˇ ˇ

  • Recovery of Co2+ Ions from Aqueous Solutions by Froth

    cobalt ions by applying flotation after they were precipitated as sulfides, a process which has received little attention so far. The effectiveness of this process was then compared to Co2+ recovery by anionic-surfactants flotation. Both dispersed- and dissolved-air flotation The method of selection, extraction and recovery of nickel,The method of selection, extraction and recovery of nickel, cobalt and copper from sulphide flotation concentrate, stimulated by chlorine, by oxidative leaching with sulfuric acid under pressure. to reduce the time and number of process steps. 3 S. and 14 C.p. f

  • Nickel cobalt mining extraction procedures Industrial

    Sep 06, 2019· Sherritt Gordon Process. The nickel and cobalt metallurgy processes begin with an initial treatment of the mineral, re-concentrating it through crushing and flotation/gravity and obtaining a “speiss”, rich in cobalt and nickel. The process begins by adding the sulfide-associated mineral to a reactor with sulfuric acid and pressurised air.Recovery of Cobalt and Copper From Complex Sulfide,RECOVERY OF COBALT AND COPPER FROM COMPLEX SULFIDE CONCENTRATES By R. O. Dannenberg,1 P. C. Gardner/ S. R. Crane/ and D. C. SeideP ABSTRACT The Bureau of Mines conducted laboratory investigations with the objective of developing an alternative process for recovering cobalt and copper from complex sulfide concentrates. Processes currently

  • A New Process for Cobalt Nickel Separation

    excellent cobalt-nickel separation primary leach liquor by Cyanex 272. However, manganese extraction from the leach liquor along with cobalt could not be avoided, thus increasing the cost of the process. For sulphide ores, there is another alternative; if the ore can be concentrated by flotation, matte smelting is used instead of leaching.Mining Industry Copper Sulfide Ore and Flotation Process,(6) Copper-cobalt ore Copper mineral and cobalt-containing pyrite and other cobalt minerals. (7) Arsenic sulfide copper ore The ore has a high content of arsenic, which is mainly in the form of arsenopyrite. Flotation process to solve the problem of copper and arsenic separation, reduce the arsenic content in the copper concentrate as much as

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

    The platinum group metals (PGMs) are often found together with nickel, copper, and cobalt sulphide deposits. Even in small quantities, these can be economically significant. The PGMs follow the nickel, copper, and iron through the pyrometallurgical process, and can be extracted from the hydrometallurgical leach residues for further processing.Froth flotation Wikipedia,Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic.This is used in mineral processing, paper recycling and waste-water treatment industries. Historically this was first used in the mining industry, where it was one of the great enabling technologies of the 20th century.

  • OVERVIEW OF PGM PROCESSING Anglo American Platinum

    Flotation Drying and smelting in electrical furnace Air/O 2 Base Metal Refiningblown Converters Sulphur Removal •Nickel •Copper •Cobalt Sulphate •Sodium Sulphate •Nickel sulphate Base Metal Refining (incl. Magnetic Concentration for some players) Precious Metal Refining •PGMs •Gold Incorporating PGMs into various end applicationsA Flotation Technique for a Sulfide-Oxidized Cu-Co Mixed,Conventional floatation treatment has poor effects on recovering Cu-Co sulfide-oxidized mixed ores due to the high oxidation rate and large amount of carbonaceous mud of the ores. The research results showed that the pre-removal of carbonaceous mud asynchronous flotation process got a better flotation results than the conventional process.

  • EFFECT OF GRINDING CHEMISTRY ON THE SULPHIDISATION

    the flotation process. To have a better understanding of the fundamental mechanisms, the system was simplified. 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.Axis House Reagent Experts,The Axis House flotation reagent range for Cobalt consists of collectors for oxide and sulphide Cobalt, depressants for typical associated gangue minerals as well as specialised frothers. The reagent range also covers the hydrometallurgical process with

  • Cobalt and copper recovery from the ancient flotation

    flotation, a thermal process (roasting) is applied to the concentrate to transform most of the cobalt and copper sulfide to a soluble sulfate, while iron originated from other sulfides is converted to an oxide form, such as Fe 2 O 3 and Fe 3 O 4. Thus, the iron remains,