Hydrocyclone applied in the physical processing of phosphate concentrate containing rare earth elements

Silva, Jéssica Terra Teodoro da; Bicalho, Isabele Cristina; Ribeiro, Gustavo Paiva; Ataíde, Carlos Henrique

doi:10.1016/j.mineng.2020.106402

Cited by 12 publications

(2 citation statements)

References 21 publications

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“…In recent years, hydrocyclones have gained high attention due to their irreplaceable advantages in particle separation with a cut size of larger than 2 µm for feed size below 1 mm [9]. The high separation efficiency of hydrocyclones is achieved when conducted to feed particles with size in the range of 400 µm to 5 µm [10]. Furthermore, hydrocyclones (Fig.…”

Section: Recent Industrial Applications Of Hydrocyclonementioning

confidence: 99%

Recent Trends in Mineral Processing Based on Density and Particle Size – A review

Sobhy¹

2022

International Journal of Materials Technology and Innovation

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Most mineral beneficiation development in the world focus on size and density-based separation technologies. In recent years, ore size-based and density-based separation technologies have attracted more consideration to obtaining rough or final highquality products. Due to the dissimilarity of physical properties like particle size and density, valuable and gangue minerals can be segregated via size-based and density-based separation technologies. Removing the impurities and recovering the target minerals are accomplished by size-based separation technologies alone or are usually followed by cleaning processes utilizing density-based separation abilities. The density variation among valuable and gangue minerals leads to dissimilarities in settling velocity in a fluid medium (air or water) to promote the density-based separation process. In addition, the effect of densitybased separation processes is strongly influenced by the range of particle sizes to be treated. This paper thoroughly reviews the literature on recent advances in various gravity and sizing separation technologies, such as cyclones, enhanced wet separation, and dry separation from theoretical and technical aspects.

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Section: Recent Industrial Applications Of Hydrocyclonementioning

confidence: 99%

Recent Trends in Mineral Processing Based on Density and Particle Size – A review

Sobhy¹

2022

International Journal of Materials Technology and Innovation

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“…Hydrocyclones are used as centrifugal separation equipment in petrochemical, mineral separation, sewage treatment, biological, and other applications due to their easy operation, lack of moving parts, and small footprint [1][2][3][4]. Within a hydrocyclone is a nonhomogeneous mixture of centrifugal force, gravity, drag, and other multiple coupled forces under the effect of turbulence; additionally, the internal hydrodynamic properties and particle behavior are highly complex, and it is always difficult to obtain a satisfactory separation effect [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Designing the Spigot Structure of Hydrocyclones to Reduce Fine Particle Misplacement in Underflow

Liu,

Chen,

Hou

et al. 2024

Water

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Hydrocyclones can be used to concentrate the entrained sands in sewage and alleviate the clogging and erosion of the drainage network, but in practical application, there are problems such as low concentrations of underflow and a high content of fine particles, which cause a significant load on the subsequent sand dewatering and recycling. This paper designs five spigot structures of hydrocyclones and investigates the separation performance by numerical simulation, aiming to improve the applicability of hydrocyclones in the sewage treatment process by optimizing the spigot structure. The research results show that a large cone spigot delays the external downward swirling flow and reduces fine particle content in the underflow, but its effective separation space is reduced, and the turbulence in the cone section area is more intensive, which influences the separation accuracy. An elongated spigot has a reduced underflow water distribution; fine particles are more enriched in the internal swirling flow, and the underflow recoveries of 1 μm and 5 μm particles drop by 2.34% and 2.31%. The spigot structure affects the downward fluid and air intake states; complicated spigot structures contribute to increasing the resistance of particle discharge through underflow, alleviating fine particle misplacement.

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Enhancement of the classification and recovery process of fine mineral particles via a newly developed volute feed hydrocyclone

Wei

et al. 2023

Environ Sci Pollut Res

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Ore resources in the mining process form a large number of unmanageable tailings, mostly inhalable fine mineral particles, into the environment will cause serious pollution, and recycling is a precious resource. The cyclone classification provides the possibility for the recovery and exploitation of fine particles, but the recovery and utilization rate of conventional cyclone separation is seriously low, and the performance urgently should be optimized. In the present study, a new type of volute feed was proposed to strengthen the classification and recovery process of fine mineral particles. Combined with numerical simulation and experimental research, the effects of various structural parameters and operating parameters on the flow field distribution, particle motion, and classification performance were systematically examined. The obtained results reveal that the new volute feed structure can effectively reduce the internal turbulence and improve the flow field stability and particle classification efficiency. Compared with the traditional hydrocyclone, the classification efficiency of fine particles with new feed structure increases by 10%-18%. Increasing underflow diameter and feed pressure and reducing overflow diameter and feed concentration are also beneficial to lessening classification particle size and enhancing classification performance. The currently achieved outcomes can provide valuable guidelines for further development of novel hydrocyclones.

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Hydrocyclone applied in the physical processing of phosphate concentrate containing rare earth elements

Cited by 12 publications

References 21 publications

Recent Trends in Mineral Processing Based on Density and Particle Size – A review

Recent Trends in Mineral Processing Based on Density and Particle Size – A review

Designing the Spigot Structure of Hydrocyclones to Reduce Fine Particle Misplacement in Underflow

Enhancement of the classification and recovery process of fine mineral particles via a newly developed volute feed hydrocyclone

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