Combined Effect of Operating Parameters on Separation Efficiency and Kinetics of Copper Flotation

Bahrami, A., Ghorbani, Y., Hosseini, M.R. , Kazemi, F., Abdollahi, M. and Danesh, A. (2019) Combined Effect of Operating Parameters on Separation Efficiency and Kinetics of Copper Flotation. Mining, Metallurgy and Exploration, 36 (2). pp. 409-421. ISSN 2524-3462

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This study aims to investigate the effects of operational variables on concentrate grade, recovery, separation efficiency, and kinetic parameters of the copper flotation process. For this purpose, the effects of the pulp solids content, collector and frother dosage, and preparation and concentrate collection time were studied using a Taguchi experimental design. The results of statistical analyses indicated that the concentrate collection time and pulp density were the most influential parameters on concentrate grade. Considering copper recovery, concentrate collection time, collector dosage, and pulp density were the most significant variables, in decreasing order of importance. Also, the separation efficiency was mostly influenced by the concentrate collection time. Furthermore, kinetic studies showed that the second-order rectangular distribution model perfectly matched the experimental flotation data. The highest kinetic constant of 0.0756 s−1 was obtained from the test, which was performed with 35% solids content and 40 and 20 g/t collector and frother, respectively. The highest predicted copper recovery of 99.57% was obtained from the test at 30% solids content, and the collector and frother dosages of 40 and 15 g/t, respectively.

Keywords:Copper, Efficiency, Enzyme kinetics, Flotation, Kinetics, Recovery, Copper complexes, Operating parameters, Operational variables, Rectangular distributions, Separation efficiency, Significant variables, Taguchi methods, Collector, Taguchi experimental design, Copper compounds
Subjects:F Physical Sciences > F100 Chemistry
Divisions:College of Science > School of Chemistry
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ID Code:54530
Deposited On:14 Jul 2023 15:22

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