In this study, effect of diesel on the froth stability and its anti mechanism in fine coal flotation used MIBC as the frother was investigated. Three-phase and two-phase froth stability tests were first carried out and the negative effect of diesel on froth stability was further explained by the single film drainage and spreading ...
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Figure 2 shows froth height versus gas hold-up for a selection of frother types, including the classics MIBC and Dowfroth 250, plus some Flottec products, indicating a wide range of …
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In general, frother and collector are used as reagents to obtain an optimum condition in flotation processes. In this study, the effect of methyl isobutyl carbinol (MIBC) frother and potassium amyl xanthate (PAX) collector on the relative permittivity value using 2-electrode capacitance sensor was conducted.
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The effect of coal rank (wettability) on flotation was extensively studied. Wheeler (1994) showed that while MIBC is an excellent flotation agent for easy-to-float bituminous coals, it looses quickly its effectiveness when used to float lower rank coals. In this latter case 2-ethyl hexanol was found to be much better.
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This figure shows that the average recovery of graphite flotation without MIBC increased from 30.40 ± 0.75% in tap water to about 34.71 ± 1.21% in air-oversaturated water. After the addition of MIBC, the average recovery increased from about 39.95 ± 1.29% in tap water to about 55.86 ± 1.78% in air-oversaturated water.
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effect of MIBC on C-matter flotation was investigated to understand the role of the frother in bubble and froth formation and on flotation kinetics. MIBC dosages between 30 and 150 g/t were used
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15 Effect of MIBC on surface tension and bubble sizes generated from 48 the 0.1 mm single hole sparger and the Open-Top Leeds Flotation cell. 16 Effect of frother concentration on surface tension and CCC for tested 49 frothers. 17 Determination of CCC for Tucker et al. 's (1994) bubble size vs. frother 51 ...
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In this study, the influences of gas nucleation by a frother-type surfactant MIBC on graphite flotation were investigated through micro-flotation, single bubble collision and pick-up …
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To investigate the effect of froth depth on the flotation rate constant k, the flotation kinetics was studied as a function of froth depths in different flotation machines (Gorain et al., 1998). From these experiments, Gorain et al. (1998) concluded that the froth depth has a significant influence on the k-Sb relationship.
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A recent investigation by Chen et al. have highlighted its adverse effect on copper flotation, ... followed by the conditioning of 25 g/t of MIBC for 1 min. The flotation process started with the injection of air into the flotation cell. Concentrate samples were collected at four distinct time intervals: 0–0.5 min, 0.5–2 min, 2–5 min, and ...
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The frothers having a low water-carrying rate were more selective for producing low-ash content coal, such as 1-Pentanol and MIBC. MIBC showed better flotation performance for all size …
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Froth flotation is a well-established process to separate target/valuable minerals from gangue . In the flotation process, the dissolved gas molecules in gas oversaturated water can diffuse into the nucleated sites such as the crevices and holes on the mineral surfaces to form surface microbubbles or nanobubbles (Pradhan et al., 2019).Surface micro-bubbles or …
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MIBC is more efficient in bubble break-up process, leading to generation of finer bubbles compared to polyglycol ether frother DF-1012. From flotation practice, MIBC is very selective and appropriate for the flotation of ultrafine particles and DF-1012 is a better frother in terms of recovery and selectivity for coarse particles (Fig. 12).
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Montanol And Mibc Affect Flotation; Copper Flotation Cells Designe; Sparger Design Flotation Basalt Crusher; Silver Lab Multicell Flotation Machine; ... The flotation machine is composed of single or multiple flotation cells, by agitating and inflating the chemical reagent treated slurry, some mineral ore particles are adhered to the and float ...
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Froth stability is one of the most important factors in fine coal flotation as it significantly affects the separation efficiency. Diesel is always used as the flotation collector while the effect of diesel on the froth stability is less investigated. In this study, effect of diesel on the froth stability and its anti mechanism in fine coal flotation used MIBC as the frother was …
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Semantic Scholar extracted view of "The Effect of Flotation Reagents Addition (MIBC and PAX) on the Relative Permittivity Value Using 2-Electrode Capacitance Sensor" by D. Haryono et al. Skip to search form Skip to main content Skip to account menu. Semantic Scholar's Logo. Search 224,231,400 papers from all fields of science ...
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Bulk flotation is generally performed at around pH 9, while Cu-Ni separation is performed at higher pH, around 11. In some cases, flotation is operated at saturated lime pH condition (i.e. pH > 12) to strip the collector from the surface of pentlandite. Cyanide or dextrin can also be used to help depress pentlandite (Lawson et al., 2014). The ...
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Optimization of dosages of Kerosene and MIBC on Coal flotation Anil Kumar Murmu Assistant Professor, Department of Chemical Engineering Veer Surendra Sai University of Technology, Burla ... atmospheric air is sucked into the down comer due to the venturi effect. The jetting impact of slurry pool in the down comer and the air sucked plunge into ...
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(2017): Effect of flotation reagents on the activity of L. ferrooxidans, Mineral Processing and. Extractive Metallurgy Review, DOI: 10.1080/08827508.2017.1323748 ... (MIBC has higher positive ...
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In general, frother and collector are used as reagents to obtain an optimum condition in flotation processes. In this study, the effect of methyl isobutyl carbinol (MIBC) frother and potassium ...
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Froth Flotation Froth flotation is one of the most versatile and flexible of all mineral separation processes. Reasonable results are fairly easy to obtain but outstanding performance from a circuit requires constant attention and good understanding of the process and ore. Some of the variables that affect the operation and
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flotation reagents are used. Another application is separation of malachite and azurite ore using sulfidization flotation. Keywords. Flotation, surfactants, collectors, activators, depressants, metallurgy. 1. INTRODUCTION Froth flotation is a widely used metallurgical technique which is used in different fields like
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The effect of MIBC and DF-250 frothers on bubble coalescence was not very different, although finer bubbles were generated in the presence of MIBC than of DF-250 in seawater.
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Over the past few decades, the need to process more minerals while lowering capital costs has led to an increase in the size of flotation cells, e.g., 0.03 m 3 to 1000 m 3.
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The effect of flotation operational parameters on froth stability and froth recovery was studied. Froth stability was measured using a special column. ... (MIBC) were used as collector and frother, respectively. Results and discussion. Since one …
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In this study, the effect of MIBC on C-matter flotation was investigated to understand the role of the frother in bubble and froth formation and on flotation kinetics. MIBC dosages between 30 and ...
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No. A13435), was chosen for this study widely used in flotation plants. Moreover, MIBC as it is can improve the stability of bubbles and has little effect on the wettability of graphite surfaces (Miller et al., 1983). A high concentration MIBC solution X 10-2 mol/L)(2was prepared using
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In general, frother and collector are used as reagents to obtain an optimum condition in flotation processes. In this study, the effect of methyl isobutyl carbinol (MIBC) frother and …
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flotation have been discussed in our previous work (Xu et al., 2022). The promotion effects of air-oversaturated water on the recovery of graphite in flotation without regeants were proved by …
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On the other hand, the use of raw seawater can adversely affect the flotation of sulfides such as molybdenite (MoS 2 ) and increase lime consumption due to the buffering effect of seawater at high ...
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The Effect of Flotation Reagents Addition (MIBC and PAX) on the Relative Permittivity Value Using 2-Electrode Capacitance Sensor Didied Haryono a, Harisma Nugraha b, Mahfudz Al Huda b, Warsito ...
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The maximum flotation recoveries were obtained with the addition of MIBC (methyl isobutyl carbinol) as a frother; the size of the air bubbles deceased with increasing MIBC concentration which ...
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The froth flotation tests of bituminous coal fines were carried out using only one of three non-ionic reagents; Triton x-100, Brij-35, methyl isobuthyl carbinol (MIBC) and sodium dodecyl sulfate (SDS), and the mixture of Triton x-100 or Brij-35 with MIBC in various ratios.
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Keeping in view of the characteristics of frother blend at the interface, the effect of the mixture of MIBC and powerful frothers (PEG) in flotation of coal fines were conducted. The blends were prepared at 50 ppm (0.9 × 10 − 4 M) of frother concentration using same dosage of collector and depressant. The results are compared in Fig. 8.
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