Flotation separation of quartz from apatite and surface forces in bubble–particle interactions: Role of pH and cationic amine collector contents

Han, Yosep; Han, Seongsoo; Kim, Byeong-Woo; Yang, Ji-Won; Choi, Jin-Young; Kim, Kwanho; You, Kwang-Suk; Kim, Hyun-Jung

doi:10.1016/j.jiec.2018.09.036

Cited by 45 publications

(30 citation statements)

References 38 publications

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“…The mineral suspensions with 0.01% of the samples were stirred. The pH value of suspension was adjusted to a required pH value using 0.1 N HCl and 0.1 N NaOH [29]. The FTIR analysis was carried out using a FTIR-ATR spectrometer (Nicolet 6700 FTIR Spectrometer with Attenuated Total Reflectance, Thermo Scientific, Waltham, MA, USA).…”

Section: Experimental Methods and Analysismentioning

confidence: 99%

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Laboratory Testing of Scheelite Flotation from Raw Ore in Sangdong Mine for Process Development

et al. 2020

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Tungsten is an essential metal for the manufacture of special alloys, which is in constant demand due to the development of the industry. The recovery of scheelite from undeveloped tungsten ore in South Korea was investigated to improve the flotation performance for high grade and recovery of concentrate. To investigate the interaction between the flotation reagents and the minerals, the adsorption experiments of oleic acid as a collector on Ca-bearing minerals, such as scheelite, calcite, and fluorite were carried out. This reaction was confirmed chemical adsorption by analysis of zeta potential and FTIR analysis. The batch test was performed using a raw ore to enhance the grade and recovery of the scheelite concentrate. It was obtained at the optimal conditions for high WO3 grade and recovery of scheelite concentrate by using a simple process. In particular, the sodium carbonate used as a pH modifier was investigated to increase scheelite flotation performance by supporting the selective depression of Ca-bearing gangue minerals. Furthermore, a locked cycle test (LCT) was carried out based on batch test results for the design of a continuous pilot plant.

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Section: Experimental Methods and Analysismentioning

confidence: 99%

“…The mineral suspensions with 0.01% of the samples were stirred. The pH value of suspension was adjusted to a required pH value using 0.1 N HCl and 0.1 N NaOH [29].…”

Section: Experimental Methods and Analysismentioning

confidence: 99%

Laboratory Testing of Scheelite Flotation from Raw Ore in Sangdong Mine for Process Development

et al. 2020

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“…Here, R is the recovery of the target minerals, R ∞ the maximum recovery, k the rate constant, and τ the flotation time. The recovery of the target concentrate is expressed as shown in Equation ( 2) [9,31,32]:…”

Section: Measurement Of Flotation Rate Constantmentioning

confidence: 99%

Diagnosis and Optimization of Gold Ore Flotation Circuit via Linear Circuit Analysis and Mass Balance Simulation

et al. 2021

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The aim of this study is to diagnose and optimize a closed multistage gold ore flotation circuit in an operational industrial plant. Linear circuit analysis (LCA), a partition-based model, and a mass balance model using flotation first-order kinetics are employed to diagnose the current process. The result shows that the current circuit operates with high recovery but the gold grade of the final concentrate is low owing to the low buoyancy ratio. Hence, several alternative circuits with different streamlines and cell arrangements are proposed and simulated using LCA and a mass balance model. The result suggests that if the current process is changed to an alternative circuit in which the floated product stream of the rougher bank is changed, then the gold grade of the concentrate can be improved by 128%. Finally, the current circuit is optimized by changing it to an alternative circuit. This study provides a methodology for adapting the simulation of optimization for the flotation circuit of an industrial plant via LCA and mass balance simulation.

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“…Quartz, a naturally slightly hydrophobic mineral [1][2][3], is a dominant gangue mineral present in practically all metal ores and coal [4][5][6][7][8]. Flotation is one of the most efficient methods of quartz separation and removal.…”

Section: Introductionmentioning

confidence: 99%

Rupture of Wetting Films Formed by Bubbles at a Quartz Surface in Cationic Surfactant Solutions

Wiertel-Pochopien

Zawała

2019

Chem Eng & Technol

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Experimental studies were performed on the kinetics of the three-phase contact formation and bubble attachment to a quartz surface in solutions of a cationic surfactant of various concentrations. By tuning the distance between the singlebubble formation point and the quartz surface immersed in the solution, the influence of the state of the dynamic adsorption layer over a rising bubble on the mechanism of rupture of a wetting film formed was elucidated. Based on the unique methodology, allowing precise control over the initial degree of adsorption coverage at the detaching bubble, new evidence was found confirming the electrostatic character of the wetting film rupture in cationic surfactant solutions of low concentrations.

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Flotation separation of quartz from apatite and surface forces in bubble–particle interactions: Role of pH and cationic amine collector contents

Cited by 45 publications

References 38 publications

Laboratory Testing of Scheelite Flotation from Raw Ore in Sangdong Mine for Process Development

Laboratory Testing of Scheelite Flotation from Raw Ore in Sangdong Mine for Process Development

Diagnosis and Optimization of Gold Ore Flotation Circuit via Linear Circuit Analysis and Mass Balance Simulation

Rupture of Wetting Films Formed by Bubbles at a Quartz Surface in Cationic Surfactant Solutions

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