The effect of an external magnetic field on cationic flotation of quartz from magnetite

Birinci, Mustafa; Miller, Jan D.; Sarıkaya, Musa

doi:10.1016/j.mineng.2010.06.001

Cited by 24 publications

(7 citation statements)

References 16 publications

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“…Results of the Mulliken population calculations inferred that the covalent bond formed between oleate and siderite surface by means of electrons transferring from O1 (in oleate molecule) to Fe1 (in siderite lattice). As a result, valence-electrons' configurations of Fe1 and O1 changed into 3d 6 By comparison of AFM images of siderite surface with or without oleate functioned, the surface of the pure siderite was found to be a non-uniform film with peaks and valleys appearing on the edge. Alternatively, siderite surface with oleate functioned exhibited many peaks and valleys distributing throughout the whole surface.…”

Section: Discussionmentioning

confidence: 99%

“…As for the flotation methods, reverse cationic/anionic flotation is qualified as one of the most effective beneficiating methods to upgrade the oxide minerals [3,4], especially iron-bearing minerals [5]. However, a traditional reverse anionic froth flotation process, which teats hematite ores with quartz as the predominant gangue mineral and employs fatty acid as the collector, faced a challenge that the flotation criteria are depressed by the entrainment of siderite [6,7]. Our previous studies have indicated that the increase of siderite percentage resulted in the decrease of iron (Fe) grade of non-floated concentrate and even led to an unclear separation between the concentrate and the tailing.…”

Section: Introductionmentioning

confidence: 99%

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Density Functional Theory and Atomic Force Microscopy Study of Oleate Functioned on Siderite Surface

Zhang

Yuan

et al. 2018

Minerals

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Abstract:Efficiently discovering the interaction of the collector oleate and siderite is of great significance for understanding the inherent function of siderite weakening hematite reverse flotation. For this purpose, investigation of the adsorption behavior of oleate on siderite surface was performed by density functional theory (DFT) calculations associating with atomic force microscopy (AFM) imaging. The siderite crystal geometry was computationally optimized via convergence tests. Calculated results of the interaction energy and the Mulliken population verified that the collector oleate adsorbed on siderite surface and the covalent bond was established as a result of electrons transferring from O1 atoms (in oleate molecule) to Fe1 atoms (in siderite lattice). Therefore, valence-electrons' configurations of Fe1 and O1 changed into 3d 6.51 4s 0.37 and 2s 1.83 2p 4.73 from 3d 6.21 4s 0.31 and 2s 1.83 p 4.88 correspondingly. Siderite surfaces with or without oleate functioned were examined with the aid of AFM imaging in PeakForce Tapping mode, and the functioned siderite surface was found to be covered by vesicular membrane matters with the average roughness of 16.4 t nm assuring the oleate adsorption. These results contributed to comprehending the interaction of oleate and siderite.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Density Functional Theory and Atomic Force Microscopy Study of Oleate Functioned on Siderite Surface

Zhang

Yuan

et al. 2018

Minerals

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“…Flotation method in a magnetic field were used recently in numerous studies [23,24]. In the next stage of the study, it is planned to investigate the effect of the combination of these two methods by applying flotation in the magnetic field.…”

Section: Resultsmentioning

confidence: 99%

Effective Processing of Specularite Ore by Wet Magnetic Separation and Reverse Flotation Techniques

Al-Dhubaibi

Vapur

Top

2019

Hittite J. Sci. Eng.

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I n recent years, the world steelmaking industry has been significantly developed. This led to a rapid increase in iron ore production and demand [1]. Iron, which is one of the most useful elements in the world, has plentiful mineral forms. The primary industrial types of iron minerals include oxides and hydroxides and carbonates. Magnetite [Fe 3 O 4 ], hematite [Fe 2 O 3 ], goethite [FeO (OH)], limonite [FeOOH×nH 2 O] and siderite [FeCO 3 ] are the most common iron minerals [2]. Most of the iron ores in the world are in the form either hematite (Fe 2 O 3) or magnetite (Fe 3 O 4) [3]. Gravity and magnetic separation methods are basic ore processing techniques for obtaining the iron concentrates [4]. Wet low and high intensity magnetic separation methods are appropriate methods to process these ores with high iron content and a high degree Article History:

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“…Mineral flotation is a vital separation technique [1] , [2] , and diverse methods have been explored to enhance its efficiency, including the utilization of magnetic field [3] , sound field [4] , [5] , electric field [6] , [7] , etc. Ultrasound technology has gained significant attention due to its accelerating development and wide applications.…”

Section: Introductionmentioning

confidence: 99%

A comparative study on the influence of single and combined ultrasounds assisted flake graphite flotation

Zhou,

Tong,

Dong

et al. 2023

Ultrasonics Sonochemistry

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The effect of an external magnetic field on cationic flotation of quartz from magnetite

Cited by 24 publications

References 16 publications

Density Functional Theory and Atomic Force Microscopy Study of Oleate Functioned on Siderite Surface

Density Functional Theory and Atomic Force Microscopy Study of Oleate Functioned on Siderite Surface

Effective Processing of Specularite Ore by Wet Magnetic Separation and Reverse Flotation Techniques

A comparative study on the influence of single and combined ultrasounds assisted flake graphite flotation

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