Joshua Sutherland works in the ARC Centre of Excellence for Enabling Eco-Efficient Beneficiation of Minerals, across multiple mineral beneficiation projects. Joshua was awarded a Bachelor Degree in Chemical Engineering (Honours) from the University of Newcastle (Australia) in 2013. Under the supervision of L/Prof Kevin Galvin, Joshua was subsequently awarded a PhD (Chemical Engineering) in 2019. The research that he is engaged with focuses on the recovery of valuable and critical minerals.
A 2 m diameter REFLUX¿ Flotation Cell was fed at roughly 210 m3/h, equivalent to a flux of 1.9 cm/s, about twice the maximum rate used in conventional flotation cells. The coal fe... [more]
A 2 m diameter REFLUX¿ Flotation Cell was fed at roughly 210 m3/h, equivalent to a flux of 1.9 cm/s, about twice the maximum rate used in conventional flotation cells. The coal feed slurry had 59¿64 wt% head ash and nominal size range -0.100 mm (Sauter mean size 0.004 mm). The air, wash water and underflow rates were 180 m3/h, 65 m3/h and 235 m3/h respectively, giving a positive downwards wash water bias flux of 0.2 cm/s. Product ashes of 11¿15 wt% were obtained at combustible recoveries of 58¿75 %, with results on or better than the tree curve. These initial results demonstrate that the beneficial hydrodynamics seen at laboratory scale are realised at full-scale. Also demonstrated is the use of a novel oil-agglomeration technique to obtain detailed performance versus size data, showing that high hydrophobic recoveries were being obtained at sizes down to 0.001 mm.
Sutherland JL, Dickinson JE, Galvin KP, 'Examining the partitioning of coal particles in the Reflux Flotation Cell', Proceedings of APCCHE 2015 Congress Incorporating Chemeca 2015, Melbourne, VIC (2015) [E1]
Sutherland J, Dickinson JE, Galvin KP, 'Partitioning of coal tracer particles in the Reflux Flotation Cell', Australiasian Particle Technology Society Student Cenference, Phillip Island (2015) [E3]
