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NICKEL AND COBALT ORES: FLOTATION

ores is through the production of nickel matte after enriching the nickel content of the ore. This is com-monly carried out by magnetic separation, Sotation, or a combinationof both after the ore is comminuted to below 200 m in size. The enrichment depends upon the degree of rejection of the other sulRde and non-sulRde gangue. The maximum grade of nickel

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Copper-Cobalt ores - Danafloat

Copper-Cobalt ores. Various cobalt bearing minerals have economic significance including cobaltite (CoAsS). carrollite (Cu (Co.Ni)2S4), and linnaeite (Co3S4). These are often associated with copper minerals and pyrite and pyrrhotite iron sulphides. Two different flotation separation strategies are used.

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Production of cobalt from copper-cobalt ores on

01.09.2020  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 typically contains about 16% copper and 4% cobalt. This

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Nickel and Cobalt Ores: Flotation - ResearchGate

Flotation of cobalt sulfide ores can be best achieved at acidic pH (~. 4) with xanthate collectors and at pH of about 7.5 for oxide ores with nitrosonaphthol chelating reagents, while their mixture...

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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 (fig. 2), and the iron sulfides, pyrite and marcasite. Current

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

optimum conditions for the flotation of nickel, copper and cobalt from a nickel-copper sulphide ore. The parameters investigated include collector dosage, percentage solids, depressant dosage and pH. The effects of these parameters at three different levels on the recovery of Ni, Cu and Co were investigated using an L 9 Taguchi orthogonal array.

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(PDF) Mineralogical Prediction of Flotation

Carbonaceous shale ores, which are sometimes highly mineralised with carrollite, cause issues during flotation as commonly-used frothers can be absorbed by clays and organic material, reducing...

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SOME ASPECTS OF LABORATORY FLOTATION OF Co-Cu

trend of two detectably different cobalt mineral flotation responses was noticeable with DTB 3 ore as well as seen below in Figures 7 and 8. In general this ore appeared to be particularly sensitive to the sulphidisation potential (Jones and Woodcock 1978) and a

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Mineralogical Prediction of Flotation Performance

Within these deposits, carrollite (Cu 2 CoS 4) is the main cobalt-bearing mineral in the sulphide ore and common copper sulphide minerals are bornite (Cu 5 FeS 4), chalcopyrite (CuFeS 2) and chalcocite (Cu 2 S). Flotation is one of the first steps in the concentration of the valuable sulphide minerals [ 6, 7, 8 ].

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A New Process for Cobalt Nickel Separation

For sulphide ores, there is another alternative; if the ore can be concentrated by flotation, matte smelting is used instead of leaching. This combination of flotation and smelting effectively removes most of the deleterious impurities, and thus produces a nickel-cobalt matte suitable for leaching and eventual Cyanex 272 separation of nickel and cobalt. Historically of course almost all nickel ...

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cobalt processing Uses, Supply, Facts

In the copper-cobalt ore bodies of central Africa and Russia, ... This is then treated by flotation to separate a cobalt-rich concentrate for treatment in the cobalt circuit. Separation flotation utilizes pneumatic and mechanical agitation to produce air bubbles that carry the mineral particles to the surface. Different reagents are used to attract the cobalt minerals to the bubbles in ...

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

Mixed oxide sulphide ore Flotation Copper Cobalt QEMSCAN ABSTRACT More than half of the global cobalt supply from primary sources is currently produced in the Democratic Republic of Congo (DRC) from ores containing copper-cobalt oxides or copper-cobalt sulphides. Where oxide and sulphide cobalt-bearing copper minerals occur together, efficient recovery of copper and cobalt is known to be ...

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

optimum conditions for the flotation of nickel, copper and cobalt from a nickel-copper sulphide ore. The parameters investigated include collector dosage, percentage solids, depressant dosage and pH. The effects of these parameters at three different levels on the recovery of Ni, Cu and Co were investigated using an L 9 Taguchi orthogonal array.

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Cobalt and copper recovery from the ancient flotation ...

for the extraction of copper and cobalt from sulfides-bearing ores. After obtaining a sulfide concentrate containing a sufficient grade of cobalt and copper by 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 ...

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(PDF) Mineralogical Prediction of Flotation

There is also an appreciable difference in floatability between oxide minerals from carbonate and silicate ores, which require the use of specific flotation reagents (Bulatovic, 2010;Shungu et al ...

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Mineralogical Prediction of Flotation

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 nine sulphide ore samples was investigated through laboratory batch kinetics tests and quantitative mineral analyses. Using a range of ore samples from the same deposit the influence of mineralogy ...

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Copper Cobalt Froth Flotation - Ulang

Cobalt Ore Flotation Process. Cobalt flotation process, recovery from copper cobalt oxide .. Recovery from copper cobalt The ore is comminuted and the cobalt rich oxides are separated by froth Cobalt ores Various cobalt Differential flotation sequence A differential copper cobalt flotation separation which begins with selective copper flotation.

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SOME ASPECTS OF LABORATORY FLOTATION OF Co-Cu

Laboratory flotation testwork was carried out on three different samples from the DRC in attempts to isolate some of the more important variables affecting the flotation of copper and cobalt oxide minerals from these weathered deposits. This paper describes some early results achieved and experiences gained with these different ores ahead of a more

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Ores Containing Cobalt Cobalt Institute

Ores Containing Cobalt. Mineralogy . A wide range of minerals contain cobalt although many are rare or unique to individual localities. There are approximately 30 principal cobalt-bearing minerals and over 100 more which contain minor amounts of the metal or include cobalt as a substitute for other elements. Cobalt may substitute for transition metals in many minerals and chemical compounds ...

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Extraction Of Cobalt From Ores - app-sundream.de

Extraction Of Cobalt From Laterite Ores By Citric Acid In. Aug 01, 2010nbsp018332citric acid was used to selectively extract cobalt from limonite-type laterite ores in the presence of ammonium bifluoride. the results show that ammonium bifluoride enhances the leaching of cobalt by citric acid, and 84.5 cobalt is extracted from a laterite ore containing 0.13 co when leached at ambient ...

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Cobalt and copper recovery from the ancient flotation ...

for the extraction of copper and cobalt from sulfides-bearing ores. After obtaining a sulfide concentrate containing a sufficient grade of cobalt and copper by 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

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cobalt recovery by flotation -

A part of the spent electrolyte enters the cobalt recovery circuit and is purified by the removal of iron, copper, nickel, and zinc prior to the precipitation of cobalt as its hydroxide.The ore is comminuted and the cobalt rich oxides are separated by froth flotation. Read more

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

Flotation kinetics was treated for study the variation of the cumulative recovery of a component (copper and cobalt) proportionally to flotation time [18], as a time-rate recovery process. II. MATERIALS AND METHODS A. Sample The ore sample on which we worked was from mine of Kalukuluku in Lubumbashi in the Democratic Republic of Congo. It has been crushed in a laboratory jaw crusher

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Why the world is demanding more cobalt, and

Copper-cobalt ores are primarily found in Zambia and the DRC, where the cobalt is recovered from copper flotation concentrates, using a roast-leach-electrowin (RLE) process. The ore is roasted (for sulfides), followed by a sulfuric acid atmospheric leach, and direct electrowinning of copper. Impurity removal is a key step, as well as cobalt hydroxide precipitation. The final steps involve a re-leach and

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2-Recovery of Copper and Cobalt from Converter Slag with a ...

3.1 Effect of pH on the Flotation of Converter Slag Converter slag sample was floated at different pHs and the results are given in Fig. 1 [21]. This study was carried out under the conditions indicated in Table 2. As seen in Fig. 1, the best flotation yield was at pH 11.0. For flotation, 100 g of the ore

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Ores Containing Cobalt Cobalt Institute

Cobalt minerals occur in concentrations high enough to support economic extraction in several diverse settings, all of which display very different examples of mineralisation. The most common groups of minerals are sulphides, sulphosalts, arsenides and oxides (see Table 1). In general common rock-forming minerals do not contain significant amounts of cobalt. However, it can be found in economic

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Comparing the extent of the dissolution of copper-cobalt ...

extraction of copper and cobalt from the copper-cobalt oxide ores of the Central African Copperbelt include (i) heap leaching of the low-grade ores, (ii) upgrading of the ores by flotation prior to leaching, and (iii) direct ore leaching using sulphuric acid. All these methods have inherent problems. For instance,

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Nickel / cobalt mining extraction procedures

The main cobalt reserves are found in the Congo, Russia, Peru, Canada, Finland, Chile, Burma, Morocco and Zimbabwe. Normally, arsenic is also a constituent of these minerals. The initial treatment of these arsenides is crushing and concentration by flotation or gravity. The parts enriched with nickel, cobalt, and often also iron, are mixed with metallurgical coke. This coke is obtained from bituminous coal in ovens

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FROTH FLOTATION : RECENT TRENDS Flotation of Sulphide Ores ...

History of Sulphide ore flotation dates back to beginning of 20th century. Sulphide ores are major sources of base metals like Copper, Lead, Zinc, Nickel, Cobalt etc. Beneficiation of these base metal sulphide minerals is predominating through froth flotation technique. This technology has acclaimed importance as a versatile process for

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Froth flotation - Wikipedia

Froth flotation is a process for separating minerals from gangue by taking advantage of differences in their hydrophobicity. Hydrophobicity differences between valuable minerals and waste gangue are increased through the use of surfactants and wetting agents. The selective separation of the minerals makes processing complex (that is, mixed) ores economically feasible. The flotation process is ...

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Differential Flotation Of Copper Cobalt Ores

Oct 22 2012 Posts Related to differential flotation of copper cobalt ores flotation of chalcopyrite from cobalt A New Application For Flotation Of Oxidized Copper ... As a leading global manufacturer of crushing equipment, milling equipment,dressing equipment,drying equipment and briquette equipment etc. we offer advanced, rational solutions for any size-reduction requirements, including ...

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Ores Containing Cobalt Cobalt Institute

Cobalt minerals occur in concentrations high enough to support economic extraction in several diverse settings, all of which display very different examples of mineralisation. The most common groups of minerals are sulphides, sulphosalts, arsenides and oxides (see Table 1). In general common rock-forming minerals do not contain significant amounts of cobalt. However, it can be found in economic

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

Flotation kinetics was treated for study the variation of the cumulative recovery of a component (copper and cobalt) proportionally to flotation time [18], as a time-rate recovery process. II. MATERIALS AND METHODS A. Sample The ore sample on which we worked was from mine of Kalukuluku in Lubumbashi in the Democratic Republic of Congo. It has been crushed in a laboratory jaw crusher

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K. FLOTA TION OF A SILICATED OXIDE COPPER-COBALT ORE

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. 230 The ore sample used in this study was a composite from different leveis of the ...

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Mining Industry Copper Sulfide Ore and

(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 possible.

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FROTH FLOTATION : RECENT TRENDS Flotation of Sulphide Ores ...

History of Sulphide ore flotation dates back to beginning of 20th century. Sulphide ores are major sources of base metals like Copper, Lead, Zinc, Nickel, Cobalt etc. Beneficiation of these base metal sulphide minerals is predominating through froth flotation technique. This technology has acclaimed importance as a versatile process for

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Sulphidation Of Copper Oxide Ores For Flotation

Flotation of Oxide Copper and Copper Cobalt Ores 19.1 INTRODUCTION Flotation practice of oxide copper minerals dates back to almost 60 years ago and has been applied in Central Africa Congo by Union Miniere Belgium. The process involves two basic flotation methods a fatty acid flotation of oxide copper minerals from siliceous ore. Read More >

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Froth flotation - Wikipedia

Froth flotation is a process for separating minerals from gangue by taking advantage of differences in their hydrophobicity. Hydrophobicity differences between valuable minerals and waste gangue are increased through the use of surfactants and wetting agents. The selective separation of the minerals makes processing complex (that is, mixed) ores economically feasible. The flotation process is ...

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Flotation Concentrate For Nickel Ore

Nickel and cobalt ores: flotation. Nickel ore and concentrate difference.Nickel mines nickel extraction process nickel recovery .This process characterized by easier operation longer flotation time fewer concentrate flotation and process concentrate ore from different stages of separation which can recovery nickel ore as soon as possible in the flotation process. Nickel concentrate ore. Role ...

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Copper-Nickel ores

Separation of the bulk concentrate copper and nickel minerals is generally accomplished by flotation of the copper from pentlandite and nickel-bearing iron sulphides which report to the flotation tails. Pentlandite and iron sulphides are depressed by raising the pH up to 12 with lime and a small amount of sodium cyanide. Elevating the slurry temperature to 30-35 degrees C may improve the separation.

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