• Flotation of mixed oxide sulphide copper-cobalt minerals

    2019-7-1 · There is comparatively little published information on the flotation of cobalt minerals. Carrollite flotation has been studied in the presence of chalcopyrite where a maximum cobalt recovery of 83 was obtained using a mixture of Potassium Amyl Xanthate (PAX) and Sodium Isopropyl Xanthate (SIPX) at ambient pH whilst 93 of the copper was

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

    In mix ore (enargite chalcopyrite) flotation 97 of enargite was first removed at pH 4 followed by chalcopyrite flotation at pH 8 and over 95 recovery was achieved in 15 min flotation time.

    Chat Online
  • (PDF) The kinetic flotation modelling of chalcopyrite from

    Proceedings of the XV Balkan Mineral Processing Congress Sozopol Bulgaria June 1216 2013 THE KINETIC FLOTATION MODELLING OF CHALCOPYRITE FROM DOMESTIC ORES USING SOFTWARE TOOLS A. Krstev B. Krstev Z. Zdravev Ferat Sala J. Zivanovik Z. Gocev 1 University "Goce Delchev" Faculty of Natural and Technical Sciences Shtip R. of Macedonia 2 Mine Bucim

    Chat Online
  • Recovery of Cobalt and Copper From Complex Sulfide

    cobalt extraction from copper solvent extraction raffinate with a phos­ tive pressure leaching of the flotation concentrate in an oxygen atmosphere at 1950 C (2) precipitation of the major portion of the iron and arsenic as sodium of chalcopyrite in the concentrate

    Chat Online
  • NIOSHTIC-2 Publications Search10007886Cobalt and

    Chalcopyrite (CuFeS2) concentrates produced on the lead belt of Missouri typically contain 28 pct Cu and from 0.5 to 1.5 pct each of nickel and cobalt. Most of the nickel and cobalt are present as the mineral siegenite (Ni Co)3S4 almost none of which is recovered presently. The Bureau of Mines U.S. Department of the Interior has been conducting research on the chalcopyrite to produce a marke

    Chat Online
  • Process for the recovery of cobalt from ores containing

    1997-11-21 · separating the cobalt from the lead by depressing the lead and floating the cobalt in a froth flotation subjecting the cobalt to at least one cleaning to produce a cobalt concentrate. 11. The method according to claim 10 wherein the pH during the cobalt froth flotation is less than about 5. 12. The method according to claim 11 wherein the pH

    Chat Online
  • EP1325165A1Recovery of nickel and cobalt values from a

    There is provided a process for the recovery of nickel and cobalt values from a sulfidic flotation concentrate. The process involves forming a slurry of the flotation concentrate in a sulfuric acid solution and subjecting the slurried flotation concentrate to a chlorine leach at atmospheric pressure followed by an oxidative pressure leach at elevated temperature under acidic conditions.

    Chat Online
  • cobalt recovery by flotationlowisko-rozanypotok.pl

    Continuous Flotation Testing To Recover Cobalt From . processes of grinding conditioning and flotation were studied individually and in con­ cert and a series of continuous tests were run based on the parameters developed to obtain engineering data for subsequent economic analysis Overall cobalt grades of 300 wt pct at a recovery of 640 pct were achieved Metallurgist Research chemist

    Chat Online
  • Recent trends in the Gecamines copper-cobalt flotation plants

    The various copper-cobalt ores mined by Gecamines together with typical plant applications and results are briefly described. Intensive laboratory investigations have been undertaken in recent years to improve the metallurgical performances of the various concentrators. As a result of these tests it was shown that the flotation of the siliceous oxide ores could be improved by increasing the

    Chat Online
  • Leaching of Trace Amounts of Metals from Flotation

    2018-10-25 · With decreasing ore grades the tailings of mining operations are becoming of increasing interest as metal-containing secondary raw materials. The objective of the current work was to investigate chloride leaching of gold copper cobalt nickel and zinc present in the flotation tailings. In the current study the effect of cupric ion as an oxidant (0–50 g/L) and NaCl (150–250 g/L) on

    Chat Online
  • Copper-Cobalt oresDanafloat

    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

    Chat Online
  • cobalt recovery by flotationlowisko-rozanypotok.pl

    Continuous Flotation Testing To Recover Cobalt From . processes of grinding conditioning and flotation were studied individually and in con­ cert and a series of continuous tests were run based on the parameters developed to obtain engineering data for subsequent economic analysis Overall cobalt grades of 300 wt pct at a recovery of 640 pct were achieved Metallurgist Research chemist

    Chat Online
  • Process for the recovery of cobalt from ores containing

    1997-11-21 · separating the cobalt from the lead by depressing the lead and floating the cobalt in a froth flotation subjecting the cobalt to at least one cleaning to produce a cobalt concentrate. 11. The method according to claim 10 wherein the pH during the cobalt froth flotation is less than about 5. 12. The method according to claim 11 wherein the pH

    Chat Online
  • Mineralogical and Electron Microprobe Studies on the

    2020-5-6 · values by flotation of chalcopyrite in a plant of 200tpd capacity while tailing constituting the bulk of cobalt was impounded in a tailing dump. GEOLOGY The copper-cobalt deposit from Kalyadi Arasikkere Taluk Hassan district is located between Sigegudda and Nuggihalli greenstone belts of Karnataka Craton. It is geographically near to the

    Chat Online
  • Leaching and ion exchange based recovery of nickel and

    2020-1-1 · Maximum cobalt extraction was 66.6 after 336 h leaching at 46.3 g/L glycine. The Cu dissolution is much lower than Ni and Co as the copper present as chalcopyrite which leaches much slower in glycine solutions at room temperature and the absence of

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

    In mix ore (enargite chalcopyrite) flotation 97 of enargite was first removed at pH 4 followed by chalcopyrite flotation at pH 8 and over 95 recovery was achieved in 15 min flotation time.

    Chat Online
  • (PDF) UTILIZATION OF FLOTATION IN COPPER EXTRACTION

    The flotation recovery of chalcopyrite decreased from 97 under oxidative conditions (Eh 385 mV SHE pH 4) to 41 at a reductive potential of − 100 mV SHE (at pH 9).

    Chat Online
  • How to Recover Cobalt and Nickel from Copper

    2018-12-22 · The best flotation results were obtained after regrinding the copper concentrate to an average particle size of 10 µm. The chalcopyrite was then floated from the siegenite at a natural pH of 6.5 for 10 min with the addition of 0.01 to 0.1 lb/ton NaCN and 0.4 lb/ton Sodium Aerofloat.

    Chat Online
  • Enhancing flotation separation of chalcopyrite and

    2021-3-18 · Figure 3 showed the effect of PAAS dosage on the flotation behavior of chalcopyrite serpentine and talc. The experiment was carried out at pH 7.

    Chat Online
  • (PDF) The kinetic flotation modelling of chalcopyrite from

    Proceedings of the XV Balkan Mineral Processing Congress Sozopol Bulgaria June 1216 2013 THE KINETIC FLOTATION MODELLING OF CHALCOPYRITE FROM DOMESTIC ORES USING SOFTWARE TOOLS A. Krstev B. Krstev Z. Zdravev Ferat Sala J. Zivanovik Z. Gocev 1 University "Goce Delchev" Faculty of Natural and Technical Sciences Shtip R. of Macedonia 2 Mine Bucim

    Chat Online
  • Continuous Flotation Testing To Recover Cobalt From

    The major cobalt source in the ore is the mineral siegenite. Separation and concentration of siegenite by froth flotation is complicated by the mineralogy of the ore. The siegenite is often present as an intimate replacement in­ tergrowth with chalcopyrite (fig. 1) sphalerite galena

    Chat Online
  • cobalt recovery by flotationlowisko-rozanypotok.pl

    Continuous Flotation Testing To Recover Cobalt From . processes of grinding conditioning and flotation were studied individually and in con­ cert and a series of continuous tests were run based on the parameters developed to obtain engineering data for subsequent economic analysis Overall cobalt grades of 300 wt pct at a recovery of 640 pct were achieved Metallurgist Research chemist

    Chat Online
  • Bioleaching of copper nickel and cobalt from the low

    2015-4-1 · The main harmful element of the ore is sulfur which is present as metal sulfides such as pyrite and chalcopyrite. These sulfide minerals are mainly separated from iron oxides by a reverse flotation process in which a low grade copper–nickel–cobalt bearing material is produced as the floated portion.

    Chat Online
  • Leaching and ion exchange based recovery of nickel and

    2020-1-1 · Maximum cobalt extraction was 66.6 after 336 h leaching at 46.3 g/L glycine. The Cu dissolution is much lower than Ni and Co as the copper present as chalcopyrite which leaches much slower in glycine solutions at room temperature and the absence of

    Chat Online
  • Cobalt Flotation Recovery911metallurgist

    Acknowledgments
  • Recovery of Cobalt and Copper From Complex Sulfide

    cobalt extraction from copper solvent extraction raffinate with a phos­ tive pressure leaching of the flotation concentrate in an oxygen atmosphere at 1950 C (2) precipitation of the major portion of the iron and arsenic as sodium of chalcopyrite in the concentrate

    Chat Online
  • cobalt recovery by flotationlowisko-rozanypotok.pl

    Continuous Flotation Testing To Recover Cobalt From . processes of grinding conditioning and flotation were studied individually and in con­ cert and a series of continuous tests were run based on the parameters developed to obtain engineering data for subsequent economic analysis Overall cobalt grades of 300 wt pct at a recovery of 640 pct were achieved Metallurgist Research chemist

    Chat Online