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Publications
Peer reviewed journal articles and other publications highlight the innovation and potential of the RFC technology.
Presentations
2023
Guner, M., Kowalczuk, P. B., Synergism of mixed collectors in flotation of copper ore in REFLUX™ Flotation cell, 11th International Flotation Conference (Flotation '23), Cape Town, South Africa, submitted.
Draw, M. & Rzehak, R., Euler-Euler simulation of a homogeneous bubble column flow up to high gas fraction, 11th International Flotation Conference (Flotation '23), Cape Town, South Africa, submitted.
Draw, M. & Rzehak, R., Euler-Euler simulation of co-current solid-liquid flow in a vertical pipe, 2023, The 11th International Conference on Multiphase Flow, Kobe, Japan.
Guner, M., Kowalczuk, P. B., Status of Academia Cu-Team Test Work, RFC-Upscaling/FlotSim Joint Symposium, Freiberg/Dresden, Germany.
Vaishakh Tholan, Anna Sommer, Sascha Heitkam, Kerstin Eckert ,Effect of the size of air bubbles when used as tracers in a turbulent jet, 2021, 18th Multiphase flow Conference, HZDR, Dresden, Germany.
Vaishakh Tholan, Anna Sommer, Sascha Heitkam, Kerstin Eckert ,Comparison of measured gas fraction with theoretical approach (Drift Flux model) within a Reflux Flotation cell, 2023, Helmholtz Energy Conference, Koblenz, Germany.
2022
Draw, M. & Rzehak, R., CFD simulation of gas-solid-liquid flow in a slurry bubble column, 2022, Jahrestreffen der ProcessNet-Fachgruppen Mehrphasenströmungen, Mechanische Flüssigkeitsabtrennung sowie Zerkleinern und Klassieren, online.
Buchmann, M., Draw, M., Rzehak, R., van den Boogaart, K. G. & Rudolph, M., Flotation Process and Computational Modelling, 2022, FineFuture Final Conference, Brussels, Belgium.
Draw, M. & Rzehak, R., CFD simulation of gas-solid-liquid bubble column, 2022, 14th European Fluid Mechanics Conference, Athens, Greece.
Shi, P. & Magnaudet, J., Lift force on a rigid sphere in a solid-body rotating flow, 2022, 14th European Fluid Mechanics Conference, Athens, Greece.
Shi, P. & Magnaudet, J., Reversal of the transverse force on a spherical bubble rising close to a vertical wall at moderate-to-high Reynolds numbers, 2022, 10th summer school Complex Motion in Fluids, University of Twente, NL.
Draw, M. & Rzehak, R., Euler3 simulation of gas-solid-liquid flow in slurry bubble columns, 2022, International RFC Upscaling Symposium, University of Newcastle, UK
Mustafa K. Guner, Przemyslaw B. Kowalczuk. RFC 100 lab unit – installation at NTNU and retention time distribution measurements, 2022, International RFC Scaling Symposium, Newcastle, Australia.
Przemyslaw B. Kowalczuk, Conceptual Investigation on Pneumatic and Mechanical Flotation Reactor Cells from Designing and Metallurgical Perspectives, 2022, 27th International Mining Congress and Exhibition of Turkey (IMCET 2022), Antalya-Turkey.
Vaishakh Tholan, Shi Pengyu, Anna Sommer ,Sascha Heitkam, Kerstin Eckert,Hydrodynamics of sub-mm bubbles on an inclined channel in counter flow condition, 2022, 4th International Symposium on Multiscale Multiphase Process Engineering, Berlin, Germany.
Vaishakh Tholan, Bubble size and spatial phase distribution in 2 phase system, 2022, International RFC-Upscaling Symposium, University of Newcastle, Australia.
Clay Macomber, Industry talk FLSmidth: EIT KAVA7 RFC Upscaling overview: Collaborators, Scope, Achievements, and Mission Zero, 2022, International RFC-Upscaling Symposium, University of Newcastle, Australia.
Bart Dabrowski, Industry talk FLSmidth: RFC pilot plant test results and other applications, 2022, International RFC-Upscaling Symposium, University of Newcastle, Australia.
Marcin Czekajlo, Industry talk KGHM: Test work and Results RFC-850 site preparation plans, 2022, International RFC-Upscaling Symposium, University of Newcastle, Australia.
Mariana Tavares de Oliveira, Industry talk LKAB: Test work and results streams, etc RFC-850 site preparation plans, 2022, International RFC-Upscaling Symposium, University of Newcastle, Australia.
Håka, Stripple, IVL: Life Cycle Assessment, LCA/LCC (resources, environment and economy), 2022, International RFC-Upscaling Symposium, University of Newcastle, Australia.
Krzysztof Kolman Industry talk Nouryon: Atrac 1563 – collector for dephosphorization of iron ore, 2022, International RFC-Upscaling Symposium, University of Newcastle, Australia.
Tarun Bhambhani, Industry talk Solvay: Baseline experimentation for new RFC reagents, 2022, International RFC-Upscaling Symposium, University of Newcastle, Australia.
Przemyslaw B. Kowalczuk, NTNU: RFC 100 lab unit first results – flotation of copper ore, 2022, International RFC-Upscaling Symposium, University of Newcastle, Australia.
Bart Dabrowski, Industry talk FLSmidth: Historic perspective of RFC Staged Flotation, University of Newcastle, TUNRA collaboration, and Bulga site project, 2022, International RFC-Upscaling Symposium, University of Newcastle, Australia.
Bartosz Butra, Industry talk: Historic review of company and current operation information. Why KGHM interested in RFC?, 2022, International RFC-Upscaling Symposium, University of Newcastle, Australia.
Krzysztof Kolman, Industry talk Nouryon: New collectors for sustainable mineral flotations, 2022, International RFC-Upscaling Symposium, University of Newcastle, Australia.
Jolstera, Industry talk LKAB: LKAB’s transformation towards a sustainable future, 2022, International RFC-Upscaling Symposium, University of Newcastle, Australia.
Lance Christodoulou, Industry talk FLSmidth: RFC technology and Mission Zero, Consortium overall results and project information, 2022, International RFC-Upscaling Symposium, University of Newcastle, Australia.
Kerstin Eckert, HZDR: Multiphase flow measurement technologies, 2022, International RFC-Upscaling Symposium, University of Newcastle, Australia.
Sascha Heitkam , HZDR: Neutron radiography for froth measurement, 2022, International RFC-Upscaling Symposium, University of Newcastle, Australia.
Tarun Bhambhani, Industry talk Solvay: Advancing chemistry for difficult separations, 2022, International RFC-Upscaling Symposium, University of Newcastle, Australia.
2021
Draw, M. & Rzehak, R., CFD simulation of gas-solid-liquid flow in a bubble column, 2021, 18th Multiphase Flow Conference and Short Course, online.
Vaishakh Tholan, Anna Sommer ,Sascha Heitkam, Kerstin Eckert , Effect of the size of air bubbles when used as tracers in a turbulent jet, 2021, 18th Multiphase flow Conference, HZDR, Dresden, Germany.
Refereed Journal Articles
2023
Sommer, A. E., Draw, M., Wang, L., Schmidtpeter, J., Hessenkemper, H., Gatter, J., Nam, H., Eckert, K. & Rzehak, R., 2023. Hydrodynamics in a bubble column - Part 1: Two-phase flow, Chemical Engineering & Technology, 46, No. 9, 1–11.
Guner, M., Kowalczuk, P. B., Effects of Operating Parameters on Residence Time Distribution in a REFLUXTM Flotation Cell (RFCTM), Minerals Engineering, submitted.
Pengyu Shi , Vaishakh Tholan, Anna-Elisabeth Sommer, Sascha Heitkam, Kerstin Eckert, Kevin Galvin, Roland Rzehak , “Forces on a nearly spherical bubble rising in an inclined channel flow”, International Journal of Multiphase Flow, 2023, submitted.
2021
Cole, M.J., Galvin, K.P., Dickinson, J.E., Maximizing Recovery, Grade and Throughput in a Single Stage Reflux Flotation Cell, 163, 106761, Minerals Engineering, 2021
Gao Z., Wang C., Sun W., Gao Y., Kowalczuk P.B., 2021. Froth flotation of fluorite: A review. Adv. Colloid Interface Sci., 290, 102382
Matos V.E., Nogueira S.C.S., Kowalczuk P.B., Silva G.R., Peres A.E.C., 2021. Differences in etheramine froth properties and the effects on iron ore flotation. Part 1: Two-phase system. Miner. Process. Extr. Met. Review. doi: 10.1080/08827508.2021.1875461
Matos V.E., Nogueira S.C.S., Silva G.R., Kowalczuk P.B., Peres A.E.C., 2021. Differences in etheramine froth properties and the effects on iron ore flotation. Part 2: Three-phase system. Miner. Process. Extr. Met. Review. doi: 10.1080/08827508.2021.1888725
Wiertel-Pochopien A., Batys P., Zawala J., Kowalczuk P.B., 2021. Synergistic effect of binary surfactant mixtures in two-phase and three-phase systems. J. Phys. Chem. B. 125, 15, 3855-3866.
2020
Baynham, S., Ireland, P., Galvin, K.P., Enhancing ion flotation through decoupling the overflow gas and liquid fluxes, Minerals, 10(12) doi:10.3390/min10121134 (pages 1-17) 2020
Cole, M.J., Dickinson, J.E., and Galvin, K.P., Recovery and Cleaning of Fine Hydrophobic Particles using the RefluxTM Flotation Cell, Separation and Purification Technology, 240 116641 (10 pages) 2020
Drzymala J., Bednarek-Gabka P., Kowalczuk P.B., 2020. Simplified empirical and phenomenological evaluation of relation between particle size and kinetics of flotation. Powder Technol. 366, 112-118.
Sutherland, J.L., Dickinson, J.E., Galvin, K.P., Flotation of Coarse Coal Particles in the Reflux Flotation Cell, Minerals Engineering, 149 106224 (11 pages) 2020
2019
Ireland, P., Neville, F., Dickinson, J., Galvin, K.P., Enhancing Extraction in Ion Flotation using the Boycott Effect, Chemical Engineering & Processing: Process Intensification, 145, 107678, 2019
Jiang, K., Dickinson, J., Galvin, K.P., The Kinetics of Fast Flotation using the Reflux Flotation Cell, Chemical Engineering Science, 196 463-477, 2019
Larsen E., Johannessen N.E., Kowalczuk P.B., Kleiv R.A., 2019. Selective flotation of K-feldspar from Na-feldspar in alkaline environment. Miner. Eng. 142, 105928.
Larsen E., Kowalczuk P.B., Kleiv R.A., 2019. Non-HF collectorless flotation of quartz. Miner. Eng. 133, 115-118.
2018
Szczerkowska S., Wiertel-Pochopien A., Zawala J., Larsen E., Kowalczuk P.B., 2018. Kinetics of froth flotation of naturally hydrophobic solids with different shapes. Miner. Eng. 121, 90–99.
Drzymala J., Kowalczuk P.B., 2018. Classification of flotation frothers. Minerals 8(2), 53.
2016
Jiang, K., Dickinson, J.E., Galvin, K.P., Two-Stage Fast Flotation of Coal Tailings using Reflux Flotation, Minerals Engineering, 98, 151-160, 2016
2015
Dickinson, J.E., Jiang, K., Galvin, K.P., Fast Flotation of Coal at Low Pulp Density using the Reflux Flotation Cell, Chemical Engineering Research and Design, 101, 74-81, 2015
2014
Galvin, K.P., and Dickinson, J.E., Fluidized Bed Desliming in Fine Particle Flotation – Part III Flotation of Difficult to Wash Coals, Minerals Engineering, 66 94-101, 2014
Galvin, K.P., and Dickinson, J.E., Fluidized Bed Desliming in Fine Particle Flotation – Part II Flotation of a Model Feed, Chemical Engineering Science, 108 299-309 (2014)
Dickinson, J.E., and Galvin, K.P., Fluidized Bed Desliming in Fine Particle Flotation – Part I, Chemical Engineering Science, 108, 283-298 (2014)
Refereed Conference Publications
2016
Dickinson, J.E., Neville, F., Ireland, P.M., and Galvin, K.P., Uncoupling the Inherent Bubble-Liquid Hydrodynamics of Conventional Ion Flotation using Reflux Flotation, 25-28th Sept 2016, Chemeca 2016, paper number 3378834
2015
Sutherland, J.L., Dickinson, J.E., and Galvin, K.P., Examining the Partitioning of Coal Particles in the Reflux Flotation Cell, APCChE 2015 Congress incorporating Chemeca 2015, 27th Sept-01 Oct 2015, Melbourne, Victoria, paper 3130557, 2015
2014
Dickinson, J.E., Jiang, K., and Galvin, K.P., Fast Fine Coal Flotation using a Reflux Flotation Cell, Chemeca (2014)
Dickinson, J.E., and Galvin, K.P., Hydrodynamic Enhancement of Flotation using a Reflux Flotation Cell, International Mineral Processing Congress, Santiago, Chile (2014)
2013
Jiang, K., Dickinson, J.E., and Galvin, K.P., The Hydrodynamics of Fast Flotation, Chemeca 2013
Publications
2023
Draw, M. & Rzehak, R., Euler3 simulation of gas-solid-liquid flow in slurry bubble columns, 2023, Chemical Engineering Science, submitted.
2022
Shi, P., Sommer, A.E., Rox, H., Eckert, K. & Rzehak, R., Euler-Euler/RANS modeling of solid-liquid flow in stirred tanks: A comprehensive model validation, 2022, Minerals Engineering 185, 107679.
Ahmad Hassanzadeh, Mehdi Safari, Hamid Khoshdast, Mustafa K. Guner, Duong H. Hoang, Tim Sambrook, Przemyslaw B. Kowalczuk, Introducing key advantages of intensified flotation cells over conventionally used mechanical and column cells, 2022, Physicochemical Problems of Mineral Processing, 58(5):155101.
2021
Sommer, A.E., Rox, H., Shi, P., Eckert, K. & Rzehak, R., Solid-liquid flow in stirred tanks:“CFD-grade” experimental investigation, 2021, Chemical Engineering Science 245, 116743.
