The effect of viscosity on small-diameter hydrocyclones' performance in desliming process

Possa, Mario Valente; Lima, José Renato Baptista de

doi:10.1016/s0167-4528(00)80023-x

Cited by 2 publications

(1 citation statement)

References 5 publications

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“…Understanding the effect of rheology in hydrocyclones can be difficult since the flow behaviour is extremely complex, and many researchers have worked on this area for some years . In hydrocyclones, the slurry is fed tangentially under high pressure creating the centrifugal force and the flux of particles toward the radial positions .…”

Section: Rheology In Mineral Processing Unit Operationsmentioning

confidence: 99%

Slurry rheology in mineral processing unit operations: A critical review

2019

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Knowledge of slurry rheology in mineral processing is essential for the optimization of wet-grinding, dewatering, transport, and tailings management and it is becoming important in flotation due to the increasing need to process complex ores with a high clay mineral content. Slurries of these ores often display complex rheological behaviour even at low solids concentration, and traditional rheology measurements in mineral processing, such as yield stress and apparent viscosities, may not provide the critical information needed for process optimization. The objective of this paper is to provide a comprehensive review of some of the previous rheology studies performed at the bench, pilot plant, and industrial scale for different unit operations and to discuss the potential for alternative rheology measurements to provide a better insight into colloidal particle interactions in slurries with clay minerals. Firstly, the fundamentals of slurry rheology and the influence of colloidal particles are presented. Secondly, rheology measurements for suspensions are described briefly. Thirdly, a review of rheology studies in grinding, classification, flotation, dewatering, and tailings management is done, outlining possible ways of determining types of particle associations in slurries. Finally, recommendations for future research directions are provided.

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Section: Rheology In Mineral Processing Unit Operationsmentioning

confidence: 99%

Slurry rheology in mineral processing unit operations: A critical review

2019

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Correlation between Flotation and Rheology of Fine Particle Suspensions

Sajjad

Otsuki

2022

Metals

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This paper summarizes and discusses previous investigations into the correlation between the rheology and flotation process of fine particle suspensions. This summary provides a better understanding of the challenges and current status of this subject and useful feedback based on the revision of relevant theories and practical implications for fine particle characterization and processing. Such processes include the sustainable beneficiation of complex ores and wastes for valuable material extraction and the segregation of toxic substances. For example, there has been increasing demand for the beneficiation of complex ores often carrying the values (e.g., critical raw materials) in fine grains, due to the noticeable decrease in the accessibility of high-grade and easily extractable ores. To maintain the sustainable use of limited resources, the effective beneficiation of complex ores is urgently required. It can be successfully achieved only with selective particle/mineral dispersion/liberation and the assistance of mineralogical and fine particle characterization including a proper understanding of the rheological behavior of complex ores in the context of fine particle separation/processing. In correlating flotation with suspension rheology, previous works were summarized and we found that the modeling of their correlations as well as comprehensive contributions of pulp and froth rheology on flotation performance have been studied very limitedly, and comprehensive developments in these aspects are thus strongly suggested.

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The effect of viscosity on small-diameter hydrocyclones' performance in desliming process

Cited by 2 publications

References 5 publications

Slurry rheology in mineral processing unit operations: A critical review

Slurry rheology in mineral processing unit operations: A critical review

Correlation between Flotation and Rheology of Fine Particle Suspensions

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