Graphite flotation by β-cyclodextrin/kerosene Pickering emulsion as a novel collector

Gao, Jixuan; Bu, Xiangning; Zhou, Shaoqi; Wang, Xuexia; Alheshibri, Muidh; Peng, Yaoli; Xie, Guangyuan

doi:10.1016/j.mineng.2022.107412

Cited by 24 publications

(11 citation statements)

References 26 publications

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“…When an appropriate amount of inhibitor was added, the metasilicate ions in the inhibitor adsorbed on the surface of impurity minerals, increasing the hydrophilicity of the impurity minerals, thereby inhibiting impurity mineral upswelling, and thus improving graphite flotation. However, excess inhibitors can also adsorb on the surface of graphite particles and oil droplets, resulting in poor harvesting capacity of the collector and deterioration of hydrophobicity on the surface of graphite particles [36]. That is why the value of K m started decreasing when an excessive amount of inhibitor was used.…”

Section: Effect Of Inhibitormentioning

confidence: 99%

Effects of Flotation Reagents on Flotation Kinetics of Aphanitic (Microcrystalline) Graphite

Tong

Sha

et al. 2022

Separations

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The flotation method is widely used for the preliminary beneficiation of aphanitic (microcrystalline) graphite. However, there is limited literature regarding the effects of flotation reagents on the flotation kinetics of aphanitic graphite. In this study, six commonly used flotation kinetic models were used to fit the flotation experimental data of aphanitic graphite. The classical first-order model was found to be most suitable for describing flotation kinetics of aphanitic graphite. The modified flotation rate constant (Km) was then applied to evaluate the effects of collector, frother, and inhibitor on aphanitic graphite flotation kinetics. Compared to diesel oil and terpineol oil, kerosene and 2-octanol produced a greater Km. The highest Km was obtained at an inhibitor dosage of 15 mg/L.

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Section: Effect Of Inhibitormentioning

confidence: 99%

Effects of Flotation Reagents on Flotation Kinetics of Aphanitic (Microcrystalline) Graphite

Tong

Sha

et al. 2022

Separations

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“…Froth flotation is an efficient technology for recovering valuable minerals from gangue. [1][2][3][4] A collector like kerosene is normally added into the pulp in advance to improve the hydrophobicity of the hydrophobic mineral. [5][6][7] However, limited quantity and uneven distribution of the collector in the slurry usually result in high collector consumption but low flotation efficiency.…”

Section: Introductionmentioning

confidence: 99%

“…The adsorption of ions is widely reported to have an impact on mineral flotation. The hydrophobicity of the molybdenite surface was weakened due to the adsorption of HS − and SO 4 2− , which resulted in an inhibition of the molybdenite flotation performance. 18 The adsorption of Ca 2+ on the sillimanite (010) via chemical interaction had a significant unfavorable influence on the flotation recovery.…”

Section: Introductionmentioning

confidence: 99%

Effect of inevitable ions on kerosene droplet formation and evolution

Zhang,

Zhu,

et al. 2024

J of Chemical Tech & Biotech

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Understanding the effect of ions on collector generation characteristics is crucial for adjusting the oil/water interface and enhancing mineral flotation. We conducted a study of kerosene droplet generation process in the presences of NaCl, MgCl2 and AlCl3 using the high‐speed motion acquisition system. The results showed that the generation process of kerosene droplet could be divided into two stages that droplet expansion and column contraction according to the variation of the droplet width. With the increasing capillary inner diameter, the generation time of the kerosene droplet increased while the w/h value (column width/column height) of the kerosene column decreased. Until the w/h value decreased to 0, the droplet column ruptured and the droplet separated from the capillary. As the ion valence increased, the equivalent diameter (d) of the kerosene droplet increased due to the ionic hydration and followed the order dAl3+ > dMg2+ > dNa+. Furthermore, as the ion concentration increased, the equivalent diameter increased with the same capillary inner diameter, and the w/h value decreased. A model of the kerosene column height and capillary inner diameter (R) was established to predict the characteristics of the generating kerosene droplet.This article is protected by copyright. All rights reserved.

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“…Although the use of ultrasound treatment in graphite flotation did not result in the production of nanobubbles, it is worth noting that advanced flotation techniques can still be used to upgrade fine graphite to a carbon content of around 95 %. However, further upgrading of the graphite through physical methods remains a challenging task [ [7] , [8] , [22] , [23] ].…”

Section: Introductionmentioning

confidence: 99%

Effect of ultrasound power on HCl leaching kinetics of impurity removal of aphanitic graphite

Tong

Bilal

et al. 2023

Ultrasonics Sonochemistry

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Graphite flotation by β-cyclodextrin/kerosene Pickering emulsion as a novel collector

Cited by 24 publications

References 26 publications

Effects of Flotation Reagents on Flotation Kinetics of Aphanitic (Microcrystalline) Graphite

Effects of Flotation Reagents on Flotation Kinetics of Aphanitic (Microcrystalline) Graphite

Effect of inevitable ions on kerosene droplet formation and evolution

Effect of ultrasound power on HCl leaching kinetics of impurity removal of aphanitic graphite

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