Investigation of Flotation Conditions for Cobalt Recovery
Bell DT (2012) Flotation of cobalt bearing minerals from a mixed copper-cobalt oxidized ore. Dissertation, University of Johannesburg. Shahcheraghi SH, Abdollahy M, Khalesi MR, Hossein SM (2012) A study on the effect of some operating parameters on the flotation kinetics of copper sulfide minerals.
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(PDF) Investigation of flotation parameters for copper recovery …
The use of the Arrhenius equation gives the values of the activation energy of 10.92, 18.83 and 25.25 kJ/mol respectively for copper, cobalt, and iron dissolution, for the chemical reaction ...
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(PDF) Flotation separation of cobalt and copper from fresh …
Influence of iron mass on cobalt and copper flotation efficiency The influence of iron mass on cobalt and copper flotation efficiency was studied by changing the iron mass added to the reaction system, while all other parameters were kept constant ŽpHs 5.5, amount of HMDTCy, n s 2 = 10y4 mol, ionic strength, Ic s 0.02 molrl, 1 ml of NaDDS ...
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Novel approach for processing complex carbonate-rich copper-cobalt
The flotation behaviour of both copper and cobalt is considered because cobalt is recovered as a by-product. 2. Materials and methods2.1. Materials. A 60 kg grab sample representing a typical mixed Cu-Co ore from the oxide to sulphide transition zone was collected in-pit from an active mine site in the Katanga province, DRC. The sample …
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NICKEL AND COBALT ORES: FLOTATION
III/NICKEL AND COBALT ORES: FLOTATION 3491. Table 1 Principal nickel and nickeliferous minerals in nickel sulfide deposits Formula Nickel content (%) Nickel minerals ... contain very low grades of nickel (0.6%) and copper (0.04}0.4%). The easily Soatable non-sulRde min-erals dilute the grade of the concentrate and also result in nickel losses ...
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A comprehensive review on the recovery of copper values from copper
The flotation concentrate was then subjected to bioleaching by acidophilicbacterial strain, Acidithiobacillus ferrooxidans, for the treatment of base metals such as cobalt, nickel and copper. The application of bio-collector reduced the silica and alumina-based impurities, which aided the bio-leaching process to achieve a Cu …
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Recovery of copper, nickel and cobalt from acidic pressure …
Semantic Scholar extracted view of "Recovery of copper, nickel and cobalt from acidic pressure leaching solutions of low-grade sulfide flotation concentrates" by Kun-Tao Huang et al. Skip to search form Skip to main content Skip to account menu. Semantic Scholar's Logo. Search 217,797,828 papers from all fields of science ...
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A review of the beneficiation of copper-cobalt-bearing …
Sulphidisation followed by flotation is the preferred beneficiation technique for oxidised copper-cobalt ores. • The integration of CPS systems into the flotation circuits can help minimise reagent overconsumption. • Application of selective flotation can help a concentrator to produce separate oxide and sulphide concentrates.
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Cobalt Extraction Mechanisms | SpringerLink
Selective flotation of copper, depressing cobalt, from the global concentrate obtained in the previous global flotation. Regarding the parameters of this differential flotation, some companies after floating copper and cobalt together, the pH is increased to 9.5 using lime and cyanide is used as a depressant. The perfect separation …
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Application of Knelson concentrator for beneficiation of copper–cobalt …
containing copper–cobalt flotation tailings. Under the optimal conditions, overall recoveries of approximately 64.36% Cu and 60.50% Co were obtained. (3) The proposed flowsheet for treating the high talc-containing copper–cobalt ore included a flotation section and gravity separation section using Knelson concentrators.
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Recovery of copper, nickel and cobalt from acidic pressure …
Recovery of copper, nickel and cobalt from the acidic pressure leaching solutions of Jinbaoshan (YN Province, PRC) low-grade sulfide flotation concentrates was investigated.
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Pressure Leaching of Copper Slag Flotation Tailings in …
In this study, a hydrometallurgical method for the recovery of copper, cobalt, and zinc from copper slag flotation tailings (SFT) was investigated. SFT contains large amounts of valuable metallic compounds, such as copper, cobalt, and zinc. A representative SFT sample containing 0.50% Cu, 0.148% Co, 3.93% Zn, and 39.50% Fe …
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(PDF) A review of the beneficiation of copper …
Copper and cobalt (Cu-Co) are strategic metals for the Democratic Republic of Congo (DRC), and nearly 20% of the country's GDP is supported by their exports. ... thionocarbamates, fatty acids, sulphides …
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Biological treatment of clarified wastewater from the flotation …
The present research aims at minimizing the pollution of watercourses by industrial discharges. It is interested in the biological treatment of clarified wastewater from the flotation of copper (Cu) and cobalt (Co) oxidized ores conducted in the region of Katanga (Bwapwa 2019; Shengo and Mutiti 2016). It specifically focuses on the design of …
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Minerals | Free Full-Text | Mineralogical Prediction of …
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 …
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Recovery of Copper and Cobalt from Converter Slag with a New Flotation
Roasting of copper converter slag containing 4.03% copper, 1.98% nickel and 0.48% cobalt with ammonium sulphate open to atmosphere has been carried out in order to achieve sulphation of copper ...
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[PDF] NICKEL AND COBALT ORES : FLOTATION | Semantic …
NICKEL AND COBALT ORES : FLOTATION. Most of the world's nickel is extracted from the mineral pentlandite, (Ni, Fe)9S8, which frequently occurs in ores containing predominantly pyrrhotite and various non-sulRdes, some of which contain magnesium (Table 1). The nickel content in such sulRde ores is generally low (0.2}3%) and varies …
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(PDF) The ion flotation of copper, nickel, and cobalt using …
Ion flotation was used to remove copper(II), lead(II) and chromium(III) from simulated wastewater using a new biodegradable biosurfactants, namely, sodium N-lauroylsarcosinate (LS), and the ...
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Geometallurgy of cobalt ores: A review
This behaviour can be exploited to achieve copper-cobalt separation (Shungu et al., 1988). Sulphidisation of cobalt oxide minerals followed by flotation using sulfhydryl collectors such as xanthate is the most popular route to treat dolomitic oxide ores (Bulatovic, 2010, Shungu et al., 1988). Sulphidisation consists of the activation of ...
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Copper Nickel Flotation
The final tailing was rejected in the cobalt-nickel circuit. The flotation pilot plant is shown. Results typical of a single shift during the pilot run are summarized. The recoveries of lead and copper were 87.1% and 81.6% in a concentrate analyzing 20.6% copper, 10.1% lead, 0.99% nickel, and 0.77% cobalt.
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Flotation of mixed oxide sulphide copper-cobalt …
Republic of Congo (DRC) from ores containing copper-cobalt oxides or copper-cobalt sulphides. Where oxide and sulphide cobalt-bearing copper minerals occur together, …
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A Review of the Flotation of Copper Minerals
The authors of [20] investigated on the efficiency of oxide copper-cobalt ores flotation by combination of sulphidisers. Sodium hydrosulphide and ammonium sulphide, were used as sulphidisers to enhance flotation selectivity of copper and cobalt towards the gangue minerals. The investigation showed that sodium hydrosulphide exhibited a good ...
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Potentially Exploitable Reprocessing Routes for …
This research aimed at recovering metals retained in the tailings from the flotation of copper (Cu) and cobalt (Co) ores conducted at the New Concentrator in …
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Flotation of Oxide Copper and Copper Cobalt Ores
Flotation of mixed oxide sulphide copper-cobalt minerals using xanthate, dithiophosphate, thiocarbamate and blended collectors Laurens T. Tijsseling Q. Dehaine G. Rollinson H. Glass Materials Science, Chemistry
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Recovery of cobalt and copper through …
The present research aims at recovering copper and cobalt through reprocessing of tailings from flotation of oxidised ores of copper and cobalt achieved at the Kambove Concentrator (DRC). It ...
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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 …
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Comparative Cleaning Stages in Recovery of Copper and Cobalt …
The flotation behaviours of malachite and heterogenite were studied through many roughing and cleaning flotation tests in order to recovery most of copper and cobalt.
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Novel approach for processing complex carbonate-rich copper-cobalt
DOI: 10.1016/j.mineng.2020.106710 Corpus ID: 229386822; Novel approach for processing complex carbonate-rich copper-cobalt mixed ores via reverse flotation @article{Dehaine2020NovelAF, title={Novel approach for processing complex carbonate-rich copper-cobalt mixed ores via reverse flotation}, author={Quentin Dehaine and Lev …
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Challenges and opportunities for cobalt recovery at copper …
The current paper is based on the metallurgical testwork results obtained with cobalt-bearing copper ores from both the Valparaíso and Atacama region in Chile. Best case scenario shows that over ...
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Novel approach for processing complex carbonate-rich copper-cobalt
The latter, including a sulphide flotation stage at neutral pH, followed by an acidic reverse flotation stage at pH 4.5-5, increased the overall copper and cobalt recoveries.
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