The process involves two basic flotation methods: (a) fatty acid flotation of oxide copper minerals from siliceous ore, and (b) sulphidization of oxide copper minerals followed by …
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— Flotation concentrates are treated in smelter operations to produce blister copper, cast into anodes and electro-refined to produce high grade copper. Cobalt is lost …
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— Recovering valuable metals such as cobalt from tailings can help conserve resources and meet the demand for metals. The aim of this study is to investigate the …
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Semantic Scholar extracted view of "Flotation of Oxide Copper and Copper Cobalt Ores" by S. Bulatovic. ... The flotation of oxide copper ore with sodium oleate was investigated to determine the optimum pH and dosages of chemical reagents. From the mineralogical analysis using X-ray diffraction, ...
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Flotation of a copper-cobalt sulphide ore: Quantitative insights into the role of mineralogy. Q. Dehaine, L. Tijsseling, +1 author. Hylke J. Glass. Published in Minerals Engineering 1 …
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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
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— Copper-cobalt oxide ores contain several minerals that are economically treatable by concentration techniques. The most used technique is froth flotation in which selective reagents are used to recover more valuables. It is, therefore, important to examine the optimal doses of those reagents while investigating the behaviors of minerals at the …
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Global flotation of copper–cobalt, from a pre-concentrate obtained by gravitational means. 2. ... If this is the case, additional fuel is required, usually in the form of coal or sulfur which is mixed with the ore and fed to the roaster using a screw feeder. Some other operations have experienced problems with sulfur simply as it sublimates ...
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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.
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— Semantic Scholar extracted view of "Flotation of cobalt bearing minerals from a mixed copper-cobalt oxidized ore" by D. T. Bell. Skip to search form Skip to main content Skip to account menu. Semantic Scholar's Logo. Search 221,154,719 papers from all fields of science. Search ...
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— Effects of the sulphidising agent type and dosage of the flotation of oxidised copper-cobalt ore with xanthates (modified from Kongolo et al., 2003). Fig. 16 shows the effect of sulphidising agent dosage on the flotation of malachite using KAX. Download: Download high-res image (143KB)
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— The accumulation of thiosulphate ions decreases copper and cobalt recovery in the flotation of oxidized ore (Shengo, Gaydardzhiev and Kalenga, 2014). The appearance of maximum ionic strength, the ...
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— The flotation by surface sulphidisation of the oxidized copper-cobalt-bearing ore from Kimpe (1.97% Cu; 0.66% Co) was studied in order to evaluate its behavior by the analysis of its most ...
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— Improving the efficiency of oxide copper-cobalt ores flotation by combination of sulphidisers. Miner Eng, 16 (10) (2003), pp. 1023-1026. View PDF View article View in Scopus Google Scholar [6] ... Process mineralogy and flotation kinetic of a copper oxide ore during sulfuration flotation. Adv Mater Res, 634 (2013), pp. 3460-3465. View in Scopus ...
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— 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 …
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understanding historical recoveries and for predicting copper recovery at the Kansanshi flotation circuit [17]. This paper explores the complexity of modelling the flotation of copper–cobalt sulphide ore as a function of the feed mineralogy, which will be the only changing variable in the experiments.
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cobalt minerals, as most studies consider the flotation of cobalt ores as part of the main metal, such as copper and nickel [19]. Cobalt is an essential metal with a wide range of uses, and it is obtained from secondary sources in Turkey. The Küre deposits, known as the pyrite-containing copper deposit, are a significant source of cobalt.
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Flotation of Oxide Copper and Copper Cobalt Ores. Srdjan M. Bulatovic, in Handbook of Flotation Reagents: Chemistry, Theory and Practice, 2010 Publisher Summary. The process of flotation of oxide copper and copper cobalt ores involves two basic flotation methods: fatty acid flotation of oxide copper minerals from siliceous ore and …
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— After mining, cobalt ores are typically beneficiated through processes such as crushing, grinding, flotation, and/or magnetic separation to increase the cobalt concentration and remove impurities. Smelting and refining : Once the cobalt ore has been processed to a concentrated form, it is then smelted and refined to extract cobalt metal.
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— AbstractLaboratory flotation tests with copper–cobalt oxidized ore from the Luiswishi deposit in the Katanga province were done using process water being recycled to different degrees. Grade and recovery of copper and cobalt were followed by 10, 20 and 80% process to fresh water addition with the results from these conditions being …
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— 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 …
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incoming ore down to a normal cleaner flotation feed density. This option, however, results in a slightly lower recovery efficiency of both copper and cobalt compared
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flotation response of a copper cobalt oxide ore sample. The head assay conducted on the initial ore sample showed that it contained about 2.90% of Cu, 0.12% of Co. Upon the flotation test work, the results obtained indicated that the concentrate obtained with use of the mixture gazoil-rinkalore RX
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— There is 0.032% cobalt and 0.56% sulfur in the cobalt-bearing V–Ti tailings in the Panxi Region, with the metal sulfide minerals mainly including FeS2, Fe1−xS, Co3S4, and (Fe,Co)S2, and the gangue …
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— The beneficiation of high talc-containing copper–cobalt flotation tailings was studied by centrifugal gravity concentration. It was found that copper and cobalt minerals were finely disseminated ...
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Optimal flotation conditions were determined to be pH 6, a pH conditioning time of 7 min, and dosages of 50 g/t, 100 g/t, and 20 g/t of sodium hexametaphosphate, X-231, and …
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— This paper starts by reviewing the main geo-metallurgical properties of cobalt ores, with a particular focus on ore mineralogy which exerts a significant control over ore processing behaviour...
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— It also consumes a large amount of reagents in flotation. In the processing of high talc-containing copper-cobalt ore, talc is dealt with by pre-floating it together with quartz and other ...
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— Sulphidising flotation of oxide copper–cobalt ores with sodium hydrosulphide used as sulphidising agent is common practice in Katanga, Democratic Republic of Congo.From laboratory investigations ...
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— There is only limited information on the floatability of cobalt minerals, and most studies address the flotation of cobalt-containing ores as part of the flotation of the main metal, i.e., copper or nickel.
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— From the above, it can be concluded that sulphidising flotation of oxide copper–cobalt ores with sodium hydrosulphide as sulphidising agent exhibits a good selectivity of copper and cobalt flotation towards the gangue minerals. On the other hand, the use of ammonium sulphide induces higher metals recoveries with very low selectivity.
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Highlights Oxidized copper–cobalt ore samples and flotation residues are characterized to evaluate losses in copper and cobalt metals in the flotation circuit. The flotation tailings are treated with the Knelson centrifugal gravity separator for the recovery of copper– cobalt-bearing minerals. High centrifugal acceleration (120g) was used ...
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— Flotation of cobalt sulfide ores can be best achieved at acidic pH (~. ... Laboratory flotation tests conducted on ore and process samples showed that pyrrhotite rejection is greatly improved by ...
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Flotation of mixed oxide sulphide copper-cobalt minerals using xanthate, dithiophosphate, thiocarbamate and blended collectors ... presentative of a typical mixed oxide-sulphide copper-cobalt ore. To enable homogenisation, the ore was initially crushed below 2mm and riffled into representative sub-samples of 500g for test work. The re-
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— cobalt ore s are finely disse minated, thus the close coexistence of cop per and cobalt min- erals in ores w ere utilized to increas e the granularity of recovery objects during primary flotation ...
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