Kinetics of the air bubble mineralization considering separation of particles and time of aggregate emerging
https://doi.org/10.17073/0021-3438-2016-3-4-11
Abstract
The joint review of particle capturing, aggregate separation and emerging subprocesses in the conditions of periodic froth free flotation showed that mineral load formed on a separate bubble during its ascent (τm). This load is part of the equilibrium mineral load that can be reached in an endless mineralization time. It was proposed to characterize the composition of mineral load and speed of its achievement with two dimensionless parameters, which depend on the intensities of the subprocesses. The type of the particle parameter (B) was uniquely determined by the ratio of separation intensity and capture intensity, and the dimensionless time D – by correlation of particle capture and separation speeds to the air bubble rise velocity. The kinetics equation of mineralization with many bubbles was formulated in the exponential form similar to the first order equation (Beloglazov’s equation). In the mineralization rate constant (Km), capture and separation subprocess intensities determine the value of individual bubble extraction (εbm) in time τm, and the air consumption defines the total removal value ε.
About the Author
V. D. Samygin
National University of Science and Technology «MISIS», 119049, Russia, Moscow, Leninski pr., 4.
Russian Federation
Russian Federation
Dr. Sci. (Tech.), leading expert, Department of enrichment and processing of minerals and technogenic raw materials, National University of Science and Technology «MISIS»
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Review
For citations:
Samygin V.D. Kinetics of the air bubble mineralization considering separation of particles and time of aggregate emerging. Izvestiya. Non-Ferrous Metallurgy. 2016;(3):4-11. (In Russ.) https://doi.org/10.17073/0021-3438-2016-3-4-11
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