ACKNOWLEDGEMENTS The authors acknowledge the sponsors of the Collaborative Consortium for Coarse Particle Processing Research (Aeris Resources, Anglo American, Eriez Flotation Division, Glencore Copper, Hudbay, Newmont and Rio Tinto) and the University of Queensland for the financial support to conduct this research. Funding was also provided by the Australian Research Council for the ARC Centre of Excellence for Enabling Eco-Efficient Beneficiation of Minerals, grant number CE200100009. Participation in this conference was made possible through funding from the SMI Bill Whiten Memorial Award. The authors also express their gratitude to Tailing Technology, a flotation equipment supplier based in South Africa, who generously designed the 1 m3 flotation cell, and built and shipped a standard and an oversized mechanism with their associated stators to the SMI-JKMRC for incorporation into the test cell. The authors also greatly thank Michael Kilmartin for manufacturing the flotation rig and assisting in its commissioning, and Mitchell Alexander for his support in implementing design modifications throughout the experimental program. Special thanks to Emeritus Professor Tim Napier-Munn for his valuable assistance with experimental design and statistical regression modelling. REFERENCES Arbiter, N., Harris, C., & Yap, R. (1969). Hydrodynamics of flotation cells. SME Transactions, 244, 134-148. Arbiter, N., Harris, C., & Yap, R. (1976). The air flow number in flotation machine scale-up. International Journal of Mineral Processing, 3(3), 257-280. https://doi.org/10.1016/03017516(76)90005-3 Awatey, B. (2015). Fluidised-bed flotation of coarse sulphide minerals: factors influencing value recovery. PhD Thesis. University of South Australia, Adelaide, Australia. Brayant, J., & Sadeghzadeh, S. (1979). Circulation Rates in Stirred and Aerated Tanks. 3rd European Conference on Mixing. York, England. Chapman, C., Nienow, A., Cooke, M., & Middleton, J. (1983). Particle-Gas-Liquid Mixing in Stirred Vessels: Part II Gas-Liquid Mixing. Chemical Engineering Research & Design, 61, 82-95. Fallenius, K. (1987). Turbulence in flotation cells. International Journal of Mineral Processing, 21(1-2), 1-23. https://doi.org/10.1016/0301-7516(87)90002-0 Falutsu, M., & Dobby, G. (1989). Direct measurement of froth drop back and collection zone recovery in a laboratory flotation column. Minerals Engineering, 2(3), 377-386. https://doi.org/10.1016/0892-6875(89)90006-X Fosu, S., Awatey, B., Skinner, W., & Zanin, M. (2015). Flotation of coarse composite particles in mechanical cell vs. the fluidised-bed separator (The HydroFloat™). Minerals Engineering, 77, 137-149. https://doi.org/10.1016/j.mineng.2015.03.011
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