Selective flotation of copper using varied collectors. Cytec 3894 may sometimes be used in actual plant operation in conjunction with a little xanthate because it is not a strong …
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A high frother concentration produces an excessive amount of froth in the flotation cell. This increases the froth overflow and flotation rate, but, unfortunately it also decreases the concentrate grade. Collector concentration has a significant effect (either linear or non-linear) on all three quantitative response variables.
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Collectors are basically organic chemical compounds, which differ in chemical composition and function. The basic purpose of the collector is to selectively form a hydrophobic layer on a …
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Studies on the flotation of copper-bearing ore have demonstrated that Tecflote™ can be used as a primary collector or as a supplement to thiol-based collectors (Lewis et al. Citation 2018) at both laboratory and plant …
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The main aim of flotation studies have been the effect of collector type on the recovery and concentrate grade in the copper flotation process. Various collectors and combinations of them were ...
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Collector concentration has a significant effect (either linear or non-linear) on all three quantitative response variables. As collector concentration increases, recovery increases …
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The most important sulfide mineral collectors have been the sulfhydryl collectors, and this study will focus on five common collectors of this type (xanthate, dixan- thogen, dithiophosphate, thionocarbamate, and xanthogen ethyl formate) for the flotation of the common copper sulfide minerals ( chalcopyrite, chalcocite, bornite and covellite ...
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This study initiated to explore the potential of commercial chelating extractant for beneficiation of minerals revealed "LIX "65N to be an excellent collector for cuprite and chrysocolla. The collector action of the LIX is proposed to result from its chelation with copper species on the surface of the minerals. Thus, the syn-isomer of LIX65N, which is unable to form a chelate with copper ions ...
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It is widely recognized that using a combination of collectors can have a synergistic effect on flotation recovery. This research examines the impact of cationic and anionic collectors, as well as a mixture of both, on the flotation separation of chalcopyrite from pyrite. The initial flotation tests determined the optimal dosage and type of reagents. The results showed that …
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electrochemical aspects considered in flotation, which include the use of various reagents namely, collectors, frothers and modifiers such as activators and depressants. Flotation of sulphidic and oxidic copper minerals is reviewed, with particular reference to previous studies of refractory copper ore flotation. Keywords:
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This study tackles the challenge of low copper recovery rates in supergene zones where copper oxides are associated with iron oxides. An artificial neural network (ANN) model was developed, achieving high accuracy (R 2 = 0.866) to optimize flotation processes for oxidized copper ores. Shapley values ranked sulfidizing agent (NaHS) and collector dosage (PAX) as the most …
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Using the criteria of recovery and rate, the flotation of the principal copper sulfides and pyrite with sulfhydryl collectors was found to follow the pattern: xanthate > dithiophosphate …
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Sherwood Copper's Minto Mine processes a high grade copper-gold deposit in Yukon, Canada. The ore mined is from a primary copper sulphide deposit with separate additional deposits of copper oxides. In conjunction with Ausmelt Chemicals, Minto is
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The collector was regenerated from the solution by removal of methanol by distillation and its reusability was tested in five subsequent ion flotation cycles.The efficiency of the regenerated SDS for the recovery of copper from dilute copper–zinc ammoniacal solutions was similar (ca. 80%) to that of fresh SDS solution without make-up.
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During the Cu–Mo ore flotation using an optimally dispersed microemulsion of the combined collector agent, a collective Cu–Mo concentrate was obtained with a copper content of 18.2% with an ...
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An effective way to realize efficient flotation of copper oxide minerals is to increase active sites on the surface of copper oxide minerals to enhance the interaction of collector with the mineral surface. ... The micro-flotation was conducted on single minerals and artificial mixed minerals with single and mixed collector. Micro-flotation ...
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Hydroxamic collectors are considered as promising collectors of sulfide and mixed ores of non-ferrous metals, both independently and jointly with xanthate [14–16].The efficiency of using hydrazides of 2-ethylhexanoic and n-pentanoic acids for flotation of copper-nickel ores is shown [17, 18].It is assumed that the presence of hydrazides of branched alkyl radicals in the …
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The dosage of a collector is an important factor that determines the efficiency of a froth flotation process. The representative sample of the carbonatitic Palabora copper ore ground 45 % passing 75 µm was froth-floated with sodium isobutyl xanthate (SIBX) collector at 60, 70, 80, 90 and 100 g/t dosages. The concentrates and tails were dried and analysed. The results …
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The nature of copper slag flotation is unique due to the high temperature in the flotation pulp and high metallic copper content in the feed. Despite its great potential for valorizing slag, copper slag flotation remains challenging due to the deactivation of traditional dithiocarbonate (DTC) collectors (e.g., butyl xanthate) under high temperatures.
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This study presents a novel investigation focusing on the impact of blends of NAX, AEROPHINE® 3422, and AERO® MX 5149, in varying dosages and combinations, on the flotation performance of Kupferschiefer copper ore. Kinetics flotation tests were conducted using a mechanical flotation cell with various combinations and dosages of listed collectors.
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The most common copper sulfide flotation collectors are the hydrogen sulfide (-SH) class, also known as thiols, sulfhydryl group, or mercapto group (C-S). They can be grouped into the families of xanthate (X), dithiophosphate (DTP), dithiocarbamates (DTC), thionocarbamate, thiocarbamate, and mercapto benzothiazole (MBT) . Figure 8. ...
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The application of new chelating reagents on the flotation of copper minerals has been paid much attention in recent years. These collectors have successfully extracted the copper minerals from ...
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The use of Canola oil as an environmentally friendly flotation collector in sulfide mineral processing. ... S., Dutta, A., Rehani, S., 2015. Flotation of copper sulfide from copper smelter slag ...
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Present work focuses on the differences in the performances obtained in the froth flotation of copper smelter slag with multiple collector viz. sodium iso-propyl xanthate (SIPX), sodium di-ethyl dithiophosphate (DTP) and alkyl hydroxamate at various dosages. Flotation tests were carried out using single collectors as well as various mixtures of the two collectors at …
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By applying selective grinding, three stages of flotation, and using a combination of two anionic collectors (C 4132) and a cationic collector (Amin) with fuel oil, the copper and molybdenum grades in the final concentrate increased from 0.07 % and 0.0055% to 18.76% and 0.74 %, respectively. The final recoveries for copper and molybdenum were ...
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Conventional sulphide copper collectors fail to adhere to the oxides, resulting in excessive collector consumption, limited selectivity and poor recovery [5]. ... Effect of levels of different sulphidisers on copper flotation from the Kolwezi open pit (Congo, 157 International Journal of Sciences: Basic and Applied Research (IJSBAR) (2017 ...
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The flotation of four copper sulfide minerals (chalcopyrite, chalcocite, bornite, covellite) and pyrite with xanthates shows that a minimum in the collector concentration necessary for flotation ...
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For example, flotation selectivity of copper–lead–zinc ore is compromised by the accumulation of the decomposition products of a xanthate copper collector Z-200 due to water reuse and its subsequent non-selective adsorption (Ozkan and Acar, 2004).
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Simply said; a Flotation Collectors is a chemical used to make the surface of minerals, which is metallic, hydrophobic or in layman's term 'afraid of water' ... (American Cyanamid Company's Reagent " 208 "), is to a certain extent replacing sodium aerofloat in the flotation of sulphide copper minerals, its mode of addition in conjunction ...
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Copper resources mainly come from copper sulfide ore, which is often associated with pyrite. Flotation is the most effective means for the separation and enrichment of copper in ore (Zhao et al., 2021, Sun et al., 2022, Xiao et al., 2022, Liu et al., 2023b). Collector is the core of flotation, which can directly affect the flotation efficiency.
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To increase the copper recovery, a mixture of 6 g/t Z6, 4 g/t Z11, 30 g/t AERO 3477, and 20 g/t AERO 208 were used to determine synergism effect of collectors on copper recovery. After doing ...
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Collectors play a critical role in the flotation process as they help bubbles to selectively adsorb onto the surface of target mineral particles. The selection of proper …
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