https://ogma.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 Multistage gravity separation of dense minerals using the REFLUX TM classifier https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:45803 TM Classifier (RCTM) consists of a fluidized bed housing, with a system of parallel inclined channels above. This system performs a simultaneous gravity separation and desliming of the feed material, utilising the inclined channels in order to retain the relatively fine dense particles. These particles promote the formation of an autogenous dense medium within the fluidized bed. Relatively large, low density particles are displaced from the fluidized bed and conveyed upwards through the inclined channels reporting to the overflow with other finer particles. Given the hydrodynamic role of both the particle size and density in determining the particle transport through a water based suspension, all gravity separators operate over a limited size range. In the case of the REFLUXTM Classifier, efficient separations can be produced across a very broad size range, from nearly 10 mm down to 10 m, however, for a given application the size range is much more limited. This study was concerned with the processing of dense minerals over a broad size range, and the need for multistage processing. Here the overflow from the first stage cascades to the second stage, incorporating coarse gangue rejection. This approach is shown to deliver remarkably high grades and recovery.]]> Wed 23 Nov 2022 16:37:20 AEDT ]]> A novel approach to evaluating gravity pre-concentration amenability utilising the hydrodynamics of dense liquids in inclined channels https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:50403 Tue 25 Jul 2023 14:28:17 AEST ]]> Improved density fractionation of minerals in the REFLUXᵀᴹ classifier using LST as a novel fluidising medium https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:36151 f ≈ 2400 kg/m³) and (ii) 70 wt% glycerol and water fluidising media in a system of inclined channels with a 6 mm perpendicular spacing were validated against sink/float data for a -2.0 + 0.090 mm sulfide gold ore sample. It has been found that the dense liquid promotes shear induced inertial lift at much lower shear rates, significantly improving the density-based fractionation performance of the system to align very strongly with the sink/float result. Conversely, both the water and glycerol solution were found to produce poor results.]]> Tue 19 Sep 2023 14:59:03 AEST ]]> Influence of inclined channel spacing on dense mineral partition in a REFLUX™ Classifier. Part 1: continuous steady state https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:37614 Mon 01 Mar 2021 10:14:52 AEDT ]]> Influence of inclined channel spacing on dense mineral partition in a REFLUX™ classifier. Part 2: water based fractionation https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:37613 Mon 01 Mar 2021 10:00:53 AEDT ]]>