The Experts below are selected from a list of 4971 Experts worldwide ranked by ideXlab platform
Lev Filippov - One of the best experts on this subject based on the ideXlab platform.
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Modelling heavy and gangue mineral size Recovery curves using the spiral concentration of heavy minerals from kaolin residues
Powder Technology, 2016Co-Authors: Q. Dehaine, Lev FilippovAbstract:Abstract Spiral concentrators are one of the most common gravity processing methods extensively used for the concentration of mineral based on their density, particle size and shape. As for every gravity concentration technique, particle size plays a major role in the separation mechanisms within the spiral. Thus, in addition to classical performance indices, such as grade or Recovery, Partition curves are also a valuable criterion for quantifying the separation efficiency. In this paper, we study and model the influence of wash water additions and pulp density on heavy and gangue mineral Partition curves using kaolin residue enriched in heavy minerals and via a design of experiment (DOE). The results show that coarse particle size Recovery curves are affected by a systematic decrease, which is mainly impacted by wash water additions. Partition curve modelling through particle size distribution and DOE regression model fitting allow a better understanding of the effect of wash water on the aforementioned phenomenon for each mineral fraction. Gangue minerals are more affected by this phenomenon, which has been interpreted as a result of the Bagnold effect and secondary flows within the spiral. A decrease in the coarse particle Recovery represents a significant source of losses, and a better understanding of this phenomenon is necessary to avoid these losses.
Q. Dehaine - One of the best experts on this subject based on the ideXlab platform.
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Modelling heavy and gangue mineral size Recovery curves using the spiral concentration of heavy minerals from kaolin residues
Powder Technology, 2016Co-Authors: Q. Dehaine, Lev FilippovAbstract:Abstract Spiral concentrators are one of the most common gravity processing methods extensively used for the concentration of mineral based on their density, particle size and shape. As for every gravity concentration technique, particle size plays a major role in the separation mechanisms within the spiral. Thus, in addition to classical performance indices, such as grade or Recovery, Partition curves are also a valuable criterion for quantifying the separation efficiency. In this paper, we study and model the influence of wash water additions and pulp density on heavy and gangue mineral Partition curves using kaolin residue enriched in heavy minerals and via a design of experiment (DOE). The results show that coarse particle size Recovery curves are affected by a systematic decrease, which is mainly impacted by wash water additions. Partition curve modelling through particle size distribution and DOE regression model fitting allow a better understanding of the effect of wash water on the aforementioned phenomenon for each mineral fraction. Gangue minerals are more affected by this phenomenon, which has been interpreted as a result of the Bagnold effect and secondary flows within the spiral. A decrease in the coarse particle Recovery represents a significant source of losses, and a better understanding of this phenomenon is necessary to avoid these losses.
Adam Wilson - One of the best experts on this subject based on the ideXlab platform.
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how to create a Recovery Partition a simple guide
2019Co-Authors: Adam WilsonAbstract:Computers are simply pieces of electronic equipment that are pieced together to form a variety of functions from gaming to typing, internet searching to ...
Mark S. Klima - One of the best experts on this subject based on the ideXlab platform.
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Simulation of hindered-settling column separations for soil remediation.
Journal of Environmental Science and Health Part A, 2004Co-Authors: Bruce H. Kim, Mark S. KlimaAbstract:Abstract A phenomenological model was developed to describe the operation of a hindered-settling column. The model is based on the convection-diffusion equation as applied to hindered-settling conditions. Simulation results for the size classification of soil were compared with experimental results to validate the model. Subsequent simulations were carried out to evaluate column performance for separating heavy metal or organic contaminants from soil. The simulation results are presented in terms of fractional Recovery (Partition) curves, which give the probability that feed particles of a given size and density will be recovered in the column underflow stream. The results indicate that good separations are possible down to approximately 75 µm in some cases. The effective size range of separation depends on the design and operating conditions of the hindered-settling column and on the material being processed.
Bruce H. Kim - One of the best experts on this subject based on the ideXlab platform.
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Simulation of hindered-settling column separations for soil remediation.
Journal of Environmental Science and Health Part A, 2004Co-Authors: Bruce H. Kim, Mark S. KlimaAbstract:Abstract A phenomenological model was developed to describe the operation of a hindered-settling column. The model is based on the convection-diffusion equation as applied to hindered-settling conditions. Simulation results for the size classification of soil were compared with experimental results to validate the model. Subsequent simulations were carried out to evaluate column performance for separating heavy metal or organic contaminants from soil. The simulation results are presented in terms of fractional Recovery (Partition) curves, which give the probability that feed particles of a given size and density will be recovered in the column underflow stream. The results indicate that good separations are possible down to approximately 75 µm in some cases. The effective size range of separation depends on the design and operating conditions of the hindered-settling column and on the material being processed.