fine muscovite, which is the ore feed of micro-flotation. This study conducted compar- ative flotation experiments with and without nanobubbles and employed four flotation
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This work reveals atomic-level mechanism of Fe ion on the dispersion of sodium oleate in pulp, which is helpful to the understanding of the enhancement mechanism of metal …
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In recent years, fluorine-free flotation has been developed to separate muscovite with quartz [6, 7], but the flotation technique is only suitable for separating liberated ores, although ...
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Lab-scale flotation tests were conducted on a muscovite ore (9.1 wt.% muscovite) from an industrial mine to determine the effect of varying concentrations of collector and depressant.The feed was wet ground in a laboratory rod mill at 50% solids for 22.5 min to produce a P 80 of 106 μm (Fig. 1).The cell used was a 3 L Denver flotation cell with several …
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In this study, electrochemistry pretreatment flotation of muscovite was carried out and the flotation behavior and mechanism of muscovite in the system of sodium oleate and Cu2+ion was ...
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In this work, we investigated the enhancement mechanism of muscovite flotation by adding Pb 2+ by means of DFT and MD simulations. FTIR spectra and AFM results confirmed …
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Many studies have also aimed to solve the fine-particle flotation problem by exploiting microbubble flotation equipment; for instance, ... the exposed crystal-surface types of fine minerals are also important factors affecting fine-particle flotation. Moreover, as muscovite has a typical dioctahedral crystal structure, the atoms arranged in ...
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Lab-scale flotation tests were conducted on a muscovite ore (9.1 wt.% muscovite) from an industrial mine to determine the effect of varying concentrations of collector and depressant.The feed was wet ground in a laboratory rod mill at 50% solids for 22.5 min to produce a P 80 of 106 μm (Fig. 1). The cell used was a 3 L Denver flotation cell with several …
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This work focused on the removal of calcite from the decarburized stone coal using flotation.The influence of Al 3+, Fe 3+, and Ca 2+ on the flotation behavior of muscovite and calcite was studied by micro-flotation experiments, aqueous speciation calculation, zeta potential and XPS measurements. The micro-flotation results showed that the Ca 2+ exhibited little …
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Lithium ore flotation technology mainly includes positive, reverse, and combined flotation technology. The pure spodumene on the surface is easily floated by oleic acid and its soaps. The pH range of flotation is 4.0～9.0, and …
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The flotation results indicate that the recovery of muscovite rapidly decreases when the pH increases in the presence of only DDA, whereas the recovery of muscovite is high (> 77%) over a wide range of pH in the presence of the mixed DDA/OCT surfactants with a ratio of 2/1. Contact angle measurements further confirm that the mixture displays a ...
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Muscovite mica is an industrial mineral used in many different applications including coatings, construction materials and polymers. This mineral is commonly beneficiated using froth flotation ...
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Flotation separation stage: One is to use anionic collectors to flotation mica in acidic medium, and the other is to use anionic collectors to recover fine-grained mica in alkaline medium.
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Theoretically, calcite and muscovite are easy to be separated by flotation using anionic collectors, such as oleate and its derivatives [[9], [10], [11], [12]].However, in practice, a part of vanadium-bearing muscovite is lost along with the flotation of calcite, and finally reduces the total recovery of vanadium [4, 13, 14].The main reason for this phenomenon might be …
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However, the strong acid pulp in the flotation process is likely to cause environmental pollution and strong corrosion of flotation equipment (Bayraktar et al., 1997). Moreover, amines exhibit a high sensitivity and poor selectivity for slimes, which are prone to produce abundant in the flotation, resulting in the decrease of the muscovite ...
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The flotation results indicate that the recovery of muscovite rapidly decreases when the pH increases in the presence of only DDA, whereas the recovery of muscovite is high (> 77%) over a wide ...
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Compared with a single surfactant, mixed anionic/cationic surfactants provide better flotation performance in muscovite processing due to synergistic effects in solid–liquid systems [1], [9].In recent years, an increased amount of effort has been devoted for investigating the adsorption mechanism of mixed anionic/cationic surfactants on muscovite.
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Recently, the use of mixed surfactants (anionic/cationic, anionic/nonionic, cationic/nonionic) has attracted more and more attention [[25], [26], [27]].Among them, mixed anionic/cationic collectors are most extensively investigated and used to improve the collecting and selectivity of single collector in the flotation of spodumene, muscovite, scheelite, fluorite …
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Single-mineral flotation tests showed that the muscovite-collecting power of the mixed DDA/alcohol (OCT, DEC, or DOD) system was stronger than that of the pure DDA system.
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Single mineral flotation was carried out in XFGC hanging cell flotation machine. Keep the stirring speed at 2000 rpm. The conditioning time and order of the reagent additions were shown in Fig. 3.In the flotation, there were two treatment methods for muscovite samples, and it was NBs treatment and without NBs treatment.
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Selective flotation of muscovite from a material containing muscovite (15.4%), biotite (13%), and siliceous gangue (quartz and feldspar), using a mixed collector system of sodium oleate and dodecylamine acetate has been described. Muscovite is found to float in preference to biotite, when the pulp is initially conditioned with oleate followed by amine at basic pH values. …
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However, muscovite flotation cannot be widely applied because of its numerous shortcomings, such as sensitivity to metal ions, adverse environmental effects, and strong corrosion effect on flotation equipment [6,10]. In addition, the high sensitivity and poor selectivity of amines decrease the flotation indexes of muscovite [8,11,12,13 ...
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The introduction of NBs can enhance the flotation of fine muscovite, which provide a cost-effective approach for the fine particle flotation. ... The two problems significantly reduce equipment ...
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In order to provide theoretical basis for the flotation separation of muscovite and quartz, the flotation performance and Zeta potentials of pure muscovite and quartz were investigated using dodecylamine and sodium oleate in the presence of Ca 2+, Mg 2+, Fe 3+ and Al 3+ .The results indicated that metal ions could increase the Zeta potential of muscovite and …
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The flotation separation tests were performed by XFD single cell flotation machine (Changchun Prospecting Machinery, China) with 1500 mL cubage of cell for rougher flotation, and for cleaner flotation was 0.75 dm 3. Froth flotation tests of lepidolite were carried out at temperatures of 25 °C, using Amine-based Gemini surfactant HBDB and ...
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Muscovite is a hydroaluminosilicate mineral with a layered structure that can be formed under different geological conditions and is the most widely distributed mineral in the mica group [1].
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Correspondingly, equipment for fine-particle flotation is -egorized as microbubble release flotation machine, centrifugal flotation column, packed flotation column, and magnetic flotation machine. In practice, microbubble flotation has been widely studied in the beneficiation of ultrafine coals, metallic minerals, and nonmetallic minerals and
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investigate the flotation behavior of muscovite under the action of different mixed anionic/cationic collectors, and their mechanisms for adsorption on the muscovite (001) surface were clarified …
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Flotation-introduced nanobubbles were expected to be an efficient and economical method to recover fine muscovite. This study aimed to explore the mechanism of the change appearing in flotation after introducing nanobubbles through micro-flotation, particle vision and measurement, flotation kinetics, and induction time measurement. The results of micro …
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