Modelling effects of dissolved ions in process water on flotation performance

Bıçak, Özlem; Öztürk, Yasemin; Özdemir, Elif; Ekmekçi, Zafir

doi:10.1016/j.mineng.2018.08.031

Cited by 18 publications

(16 citation statements)

References 11 publications

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“…When different minerals simultaneously appear in a solution, surface properties of the minerals can be greatly impacted by each other, resulting in changes in their affinities toward reagents (Jin et al, 2018;Tian et al, 2018). This can potentially reduce the selectivity of flotation reagents (Liu et al, 2016;Bicak et al, 2018;Feng et al, 2018). Therefore, flotation tests of mixed minerals (chalcopyrite plus molybdenite) were conducted to further investigate the selective inhibition performance of SA.…”

Section: Mixed-mineral Micro-flotation Resultsmentioning

confidence: 99%

Effects of Sodium Alginate on the Flotation Separation of Molybdenite From Chalcopyrite Using Kerosene as Collector

Zeng

Zhang

et al. 2020

Front. Chem.

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In this paper, the effect of sodium alginate (SA) on the flotation separation of molybdenite (MoS 2) from chalcopyrite using kerosene as collector was systematically investigated. The results of single-mineral micro-flotation tests indicated that SA exhibited strong depression on chalcopyrite flotation while it imposed no impact on the floatability of molybdenite. However, in the chalcopyrite-molybdenite mixed-mineral flotation system, the presence of chalcopyrite significantly increased the depressing effect of SA on molybdenite flotation, leading to a considerable reduction in the flotation selectivity. The negative impact of chalcopyrite on the performance of SA in molybdenite flotation was eliminated by adding a certain dosage of kerosene prior to SA. A concentrate containing 53.43% of molybdenum (Mo) was obtained at 76.90% of recovery using 19 mg/L kerosene and 40 mg/L SA at pH 5.4. Zeta potential measurements indicated that the adsorption of SA on chalcopyrite surfaces was stronger than that on molybdenite surfaces, which agreed with the single-mineral flotation test results. The adsorption of SA on chalcopyrite was further confirmed to be chemisorption by Fourier-transform infrared spectroscopy (FTIR) spectra analyses. When Cu 2+ appeared in solution, the flotation of molybdenite was strongly depressed by SA. Mechanism analyses indicated that more active sites were generated on molybdenite surfaces after the addition of Cu 2+ , thus promoting the adsorption of SA.

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Section: Mixed-mineral Micro-flotation Resultsmentioning

confidence: 99%

Effects of Sodium Alginate on the Flotation Separation of Molybdenite From Chalcopyrite Using Kerosene as Collector

Zeng

Zhang

et al. 2020

Front. Chem.

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“…This part of water referred is called circulating water in beneficiation plants. However, the circulating water in some beneficiation plants contains an excess suspended solids, which fail to meet the process demand of mineral separation [1][2][3][4]. Thus, it is necessary to conduct further treatment on the circulating water to increase water quality.…”

Section: Opinionmentioning

confidence: 99%

Numerical Simulation on Hydraulic Circulation Chamber in a Deep Clarification Device for Beneficiation Circulating Water

2021

AMMS

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“…It is well known that dissolution ions have played an extremely important role in mineral flotation from literature (Hughes et al, 1972;Bicak et al, 2018). The electrochemical reactions between galena and pyrite will lead to the dissolution of ionic components on the mineral surface.…”

Section: Mineral Dissolution Analysesmentioning

confidence: 99%

Effects of ultrasonic pretreatment on the flotation behavior of galena with and without the presence of pyrite

Lu¹,

Chen²,

Ma³

et al. 2020

Physicochem. Probl. Miner. Process.

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Utilizing the ultrasonic pretreatment, flotation tests, ICP-OES, and XPS analysis, the effect of the different ultrasonic pretreatment methods on the flotation behavior of galena were investigated. The flotation recovery of galena was improved for pretreated single galena sample, which is mainly attributed to the efficient removal of the oxidized components and contaminants on the surface of galena by the acoustic cavitation. However, the flotation recovery of galena was decreased when pretreated mixture sample of galena and pyrite was used. Inductively Coupled Plasma Optical Emission Spectrometer (ICP-OES) and X-ray photoelectron spectroscopy (XPS) results reveal that ultrasonic pretreatment facilitates the conversion of PbS to Pb(OH)2 and PbSO4. Besides, the flotation recovery of galena was affected to varying degrees when the galena was mixed with the pyrite of the different particle sizes in the ultrasonic pretreatment process. The reason is that the change in the surface area ratio of these two minerals affects the electrochemical reaction rate between galena and pyrite.

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Modelling effects of dissolved ions in process water on flotation performance

Cited by 18 publications

References 11 publications

Effects of Sodium Alginate on the Flotation Separation of Molybdenite From Chalcopyrite Using Kerosene as Collector

Effects of Sodium Alginate on the Flotation Separation of Molybdenite From Chalcopyrite Using Kerosene as Collector

Numerical Simulation on Hydraulic Circulation Chamber in a Deep Clarification Device for Beneficiation Circulating Water

Effects of ultrasonic pretreatment on the flotation behavior of galena with and without the presence of pyrite

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