Synergistic effect of mixed cationic/anionic collectors on flotation
The flotation and adsorption of DDA/NaOL at the solid–liquid interface was investigated by flotation tests with muscovite, contact angle measurements and adsorption measurements. The flotation results indicate that the recovery of muscovite could be achieved a maximum value (98.45%) by the mixed DDA/NaOL at α DDA = 0.25 …
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An investigation into the flotation of muscovite with an …
Pure mineral flotation experiments were conducted on both muscovite and quartz (the feldspar as provided was too fine for flotation to be effective). All flotation …
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Nanobubbles heterogeneous nucleation induced by temperature …
Each variable test was repeatedly conducted for 3 times, and finally, the representative images and force curves were presented for NBs/nanodroplets characterization and analysis. 2.2.4. Flotation tests. Both single mineral flotation tests and actual muscovite ores flotation tests were performed in this study.
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Unveiling the enhancement mechanism of Fe ion for muscovite flotation …
For each test, the 5 g of muscovite sample was accurately weighed and placed in flotation cell. The pH of pulp was adjusted using hydrochloric acid (0.1 M) and sodium hydroxide solution (0.1 M). And then, sequentially, the metal ions and collector were added, followed by flotation for 4 min ( Fig. 1 a).
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Abrasion resistance of muscovite in aeolian and subaqueous …
Muscovite flakes became significantly smaller and less frequent as aeolian transport duration increased. Mean long axis diameter dropped sharply in the first 24 h, from 1800 μm to about 365 μm.Muscovite grains greater than 500 μm could not be found under the microscope after just 96 h of circulation, and only grains smaller than 250 μm were …
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Role of nanobubbles on the fine lepidolite flotation with …
Chen et al. [11] improved the flotation recovery of fine muscovite by NBs, claiming that the presence of NBs decreases the electrostatic repulsion between muscovite particles, ... The flowsheet of micro flotation test was shown in Fig. 3. For each test 2 g of the lepidolite powder sample and 35 mL UP water were added into the flotation cell.
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Improvement of fine muscovite flotation through …
This study was to improve the recovery of fine muscovite (-20 μm) by introducing of nanobubbles (NBs). A series of techniques including flotation test, mineral adsorption …
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Effect of Cu2+ on the Activation to Muscovite Using
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 characterized by solution pH value detection, solution conductivity detection, zeta potential, infrared spectrum and the electronic energy spectrum. The results …
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Comparative Study on the Effect of Pyrophosphate and
The aim of the study was to compare the effects and mechanism of tetrasodium pyrophosphate (TSPP) and sodium tripolyphosphate (STPP) as dispersants on the selective flotation of arsenopyrite from muscovite. The results of single-mineral flotation showed that the recovery of arsenopyrite was 81.4% when no dispersant was …
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A new approach for characterization of hydrophobization mechanisms of
Micro-flotation experiments were performed in a 40 ml flotation cell with a fixed impeller speed of 1500 r/min. 2 g of muscovite samples with 35 ml of ultra-pure water was used in each test. The pulp was first conditioned for 1 min to uniformly disperse the muscovite particles. Then, HCl or NaOH was added to adjust the pH to desired values.
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Analysis of flotation and aggregation …
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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Strengthening the inhibition effect of sodium silicate on muscovite …
In each test, the muscovite 10.00 g and appropriate distilled water were placed into the flotation cell to adjust the pulp concentration to 13.33%. After stirring 1 min, sodium hydroxide was added to the pulp to achieve the best pH value in 2 min, then the proper amount of the collector and regulator were added after electrochemical ...
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Influence of metal ions on muscovite and calcite flotation: …
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 …
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Enhancement mechanism of muscovite flotation behavior by …
Flotation test. Micro-flotation experiments of muscovite were conducted at room temperature (∼25 °C) in an XFG flotation machine (Jilin Exploration Machinery Plant, China), with a 40 mL plexiglass cell and an impeller speed of 1990 rpm. In every test, …
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Molecular dynamics simulation of primary ammonium ions …
Molecular dynamics simulations employing PCFF_phyllosilicate force field have been carried out to explore the adsorption of primary ammonium collectors on the muscovite (001) surface. The results show that primary ammonium ions coat the muscovite surface, they form a monolayer coating on the surface, irrespective of the …
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Froth flotation of lithium micas – A review
Muscovite has good flotation properties using amine collectors (Bulatovic, 2007). Amine compounds can be classified according to the substituents (number and nature) on the nitrogen atoms, as described in Table 5. Main amine compound used for muscovite flotation is primary amine. ... molecular dynamics simulation and XRD test.
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Improvement of fine muscovite flotation through …
In this study, the muscovite sample was obtained from Henan Province. According to chemical composition analysis (Table 1), the purity of muscovite (93.25 %) was high and met the experimental requirements. The muscovite was ground for 1.5 h with a grinder, then particle size (D 90 = 17.38 μm) of muscovite was obtained as the test …
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Separation of lepidolite from hard-rock pegmatite ore via …
The lepidolite and muscovite were separated to obtain a Li pre-concentrate assaying 3.5 % Li 2 O from a feed grade containing 1.8 % Li 2 O. Nevertheless, according to the zeta-potential measurements, the flotation test performed with the finer-sized fraction (–210 + 63 μm) showed that lepidolite flotation was optimised between pH 3 …
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The Influence of Roasting Temperature on the …
Roasting and flotation are common techniques used in mineral processing, and they have increasingly been combined for the pre-concentration of muscovite from stone coal. The research was mainly …
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Study on Flotation Separation of Muscovite and Kaolinite
The influence of dodecylamine acetate (DDA) and myristyl trimethyl ammonium chloride (1431) on the flotation behavior of muscovite and kaolinite were studied in this paper. The condition which can efficiently separate the muscovite and kaolinite was found out: 5×10-5mol·L-1~1×10-4mol·L-11431 as collector and pH=5.The feasibility of flotation …
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Effect of Cu2+ on the Activation to Muscovite Using …
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 characterized by solution pH value detection, solution conductivity detection, zeta potential, infrared spectrum and the electronic energy spectrum. The results …
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Flotation of mica minerals and selectivity between …
material per test in an Agitair laboratory flotation cell with a cell volume of 6 I. Each flotation test was carried out in three stages, and froths were collected for I min intervals after the addition of a desired quantity of the collector. The series of reagent additions and conditionings of the pulp for a flotation test are as follows:
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The Recovery and Concentration of Spodumene Using …
The liberation and association data are also critical to understanding flotation behavior and interpreting flotation test results (outside the scope of the present study). ... Even in the case of spodumene-muscovite separation—where the calculated concentration criterion suggested that efficient separation may be difficult—selectivity …
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Strengthening the inhibition effect of sodium silicate on muscovite …
Section snippets Materials and reagents. Research using hand-selected muscovite coarse concentrate as raw material. The raw material is used as flotation sample (the purity of sample is greater than or equal to 99.5%) after being treated by crushing, shaking table purification, screening (- 150 + 75 μ m) - pickling and other …
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Improvement of fine muscovite flotation through …
The laboratory-scale flotation test results indicated that flotation recovery of chalcopyrite fine and ultrafine particles increased by approximately 16–21% in the presence of nano-microbubbles ...
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Flotation and adsorption of muscovite using mixed …
The performance of the mixed dodecylamine chloride (DDA)/octanol (OCT) surfactants on muscovite flotation was investigated using flotation tests, and their adsorption mechanisms on muscovite and air/water interface were clarified using contact angle measurement, surface tension and molecular dynamics (MD) simulations.The …
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Minerals | Free Full-Text | Insight into the Effect of
AMA Style. Zhang X, Ren L, Bao S, Zhang Y, Chen G, Chen B. Insight into the Effect of Nanobubbles on Fine Muscovite Powder Flotation in Different Dodecylamine Concentrations and Stirring Intensities: Kinetics and Mechanism.
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Insight into the Effect of Nanobubbles on Fine …
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 …
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Enhanced flotation performance and adsorption mechanism …
Muscovite crystal has anisotropy, the flotation performance is determined by the adsorption of collectors on its specific crystal plane. This study focused on the adsorption mechanism of sodium dodecyl sulfate (SDS) and sodium dodecyl benzene sulfonate (SDBS) used as muscovite collectors on its (0 0 2) crystal plane. The …
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Understanding the effect of mineralogy on muscovite …
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 …
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Insight into the Effect of Nanobubbles on Fine Muscovite …
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. …
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Role of nanobubbles in the flotation of fine rutile particles
The flotation test results showed that, compared with the untreated group, the rutile treated with NBs had a higher recovery, lower collector demand, and higher flotation rate. ... the flotation performance of muscovite was enhanced. In addition, the adsorption of NBs resulted in the reduction of collector adsorption on the muscovite …
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Flotation and adsorption of mixed cationic/anionic collectors …
Flotation cell for microflotation test. 2.3. Zeta-potential measurements. ... The flotation behavior of muscovite mica is different from the other oxides and silicates (Fuerstenau and Pradip, 2005). Similarly to kaolinite, muscovite mica belongs to phyllosilicate mineral.
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Role of nanobubbles on the fine lepidolite flotation with …
Chen et al. [11] improved the flotation recovery of fine muscovite by NBs, claiming that the presence of NBs decreases the electrostatic repulsion between muscovite particles, accelerates the formation of three-phase contact lines, and facilitates particle agglomeration. ... The lepidolite samples used in the test were obtained from Brazil, ...
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Froth flotation of lithium micas – A review
Modifiers are usually not required for muscovite flotation However, in some cases, it can be of interest. Most used modifiers for muscovite flotation are activators. Their principal use is for muscovite flotation in alkaline conditions. ... For the optimal test (i.e., flotation time − 12 min, collector dosage – 478 g/t and pH – 2), ...
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Understanding the effect of mineralogy on muscovite flotation …
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 …
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Exploring the behavior of an alcoholic amine grinding aid in …
The flotation test of artificial mixed ore showed that the addition of TIPA in the grinding process obtained a flotation concentrate with 46.82 % MgO grade, ... In this study, we systematically investigated the improvement in muscovite flotation by adding metal ions with different valence states (K +, Ca 2+, and Al 3+).
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Enhanced flotation performance and adsorption mechanism …
Request PDF | On Jan 1, 2024, Liuyi Ren and others published Enhanced flotation performance and adsorption mechanism on (0 0 2) crystal plane of fine muscovite powder | Find, read and cite all the ...
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