A design of experiments investigation into dry separation using a Knelson Concentrator

Kökkılıç, Ozan; Langlois, Raymond; Waters, Kristian E.

doi:10.1016/j.mineng.2014.09.025

Cited by 50 publications

(19 citation statements)

References 67 publications

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“…The number of tests required for the CCD can be calculated using equation 1, which contains the standard 2 k factorial with its origin at the centre, 2k points at a distance, β, from the centre to generate the quadratic terms, and replicate tests at the centre (Box and Hunter, 1957;Kökkılıç et al, 2015;Montgomery, 2009;Zhou et al, 2016).…”

Section: Methodsmentioning

confidence: 99%

“…( 1)With three variables (k) and six replicates at the centre point (n 0 ), the number of tests required for each feed grade investigated is 20 (Kökkılıç et al, 2015;Montgomery, 2009;Obeng et al, 2005;Zhou et al, 2016). The independent variables are designated as x 1 , x 2 and x 3 and the predicted responses, grade and recovery, are designated as y 1 and y 2 respectively.…”

Section: Methodsmentioning

confidence: 99%

“…where y is the predicted response; β 0 is the model constant; x 1 , x 2 and x 3 are the variables; β 1 , β 2 and β 3 are linear coefficients; β 12 , β 13 and β 23 are cross-product coefficients; and β 11 , β 22 and β 33 are the quadratic coefficients (Kökkılıç et al, 2015;Kwak, 2005;Montgomery, 2009;Zhou et al, 2016). Minitab Statistical Software 18® (Minitab, USA) was used to estimate these coefficients [the main effect (β i ), the quadratic effect (β ii ) and two-factor interactions (β ij )] from the experimental results.…”

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

A design of experiments investigation into the processing of fine low specific gravity minerals using a laboratory Knelson Concentrator

Marion

Langlois

Kökkılıç

et al. 2019

Minerals Engineering

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

A design of experiments investigation into the processing of fine low specific gravity minerals using a laboratory Knelson Concentrator

Marion

Langlois

Kökkılıç

et al. 2019

Minerals Engineering

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“…A central composite design (CCD) was used to obtain the optimum operating condition. CCD is a form of response surface methodology that predicts the response by a second‐order equation (Equation )

R = α_{0} + {\sum_{i = 1}^{normalk}}_{}^{} α_{normali} X_{normali} + \sum_{i = 1}^{normalk} α_{i i} X_{normali}^{2} + \sum_{i = 1}^{k - 1} \sum_{j = 2}^{normalk} α_{i j} X_{normali} {normalX}_{normalj}

…”

Section: Experiments and Methodsmentioning

confidence: 99%

The extraction of nickel by emulsion liquid membranes using Cyanex 301 as extractant

Kökkılıç

Marion

et al. 2018

Can J Chem Eng

Self Cite

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The removal of nickel ions from waste streams discharged from mining and metal plating industries has become a popular research topic over the past few decades. In this work, the emulsion liquid membrane (ELM) technique was used to remove nickel ions from synthetic aqueous solutions using bis(2,4,4‐trimethylpentyl)dithiophosphinic acid (Cyanex 301) as the extractant. Sulphuric acid was selected as the internal stripping agent. Central composite design methodology was used to obtain the optimum conditions, with the factors selected in the design being extractant concentration, stripping agent concentration, NiSO4 solution pH, and NiSO4 solution/emulsion volume ratio. It was found that the extractant concentration, stripping agent concentration, and NiSO4 solution/emulsion volume ratio had a significant effect on nickel removal. Optimum operating conditions achieved a maximum nickel removal of more than 99 %. Validation tests confirmed the good agreement between the predicted and experimental data. The emulsion was successfully broken afterwards and the oil phase was re‐tested. The effects of kinetics, loading capacity, and pH variation tests between the emulsion phase and organic phase were investigated. Zeta potential measurements suggest a final pH of around 2.0 is desirable for the post‐reaction treatment of the emulsion droplets.

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“…These gravity concentrators utilize centrifugal force to enhance the relative settling velocity between particles with different size and density [18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Application of Full Factorial Experimental Design and Response Surface Methodology for Chromite Beneficiation by Knelson Concentrator

Sen

2016

Minerals

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Abstract:The present work is undertaken to determine the effect of operational variables, namely: feed rate, centrifugal force and fluidization water flow rate on the efficiency of Knelson concentrator for chromite ore beneficiation. A full factorial design with three factors at three levels and response surface methodology (RSM) were applied for this purpose. The quadratic models were developed to predict the concentrate Cr 2 O 3 grade and recovery as the process responses. The results suggest that all the variables affect the grade and recovery of the Cr 2 O 3 concentrate to some degree. However, the fluidization water rate was found as the most effective parameter.

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A design of experiments investigation into dry separation using a Knelson Concentrator

Cited by 50 publications

References 67 publications

A design of experiments investigation into the processing of fine low specific gravity minerals using a laboratory Knelson Concentrator

A design of experiments investigation into the processing of fine low specific gravity minerals using a laboratory Knelson Concentrator

The extraction of nickel by emulsion liquid membranes using Cyanex 301 as extractant

Application of Full Factorial Experimental Design and Response Surface Methodology for Chromite Beneficiation by Knelson Concentrator

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