https://nova.newcastle.edu.au/vital/access/ /manager/Index en-au 5 https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:34577 X, set at a specific level, to produce a set of seven or more fractions of varying mass and increasing average density. This study then describes a new algorithm that attempts to recover the partition curve of the original steady-state separator, using only the three sets of limited fractionation data and the assumption that the form of the partition curve equation is known. The algorithm first uses a simple interpolation rule to convert each set of fractionation data into a cumulative density distribution. Then the feed density distribution and the partition curve parameters are simultaneously adjusted until a consistent set of feed, product and reject density distributions is found with minimum variation from the raw fractionation data. The algorithm was applied to a simple rectangular feed distribution, and then a more realistic distribution. In both cases the algorithm accurately determined the density cut point (D₅₀) of the separator, even for poor quality fractionations. The accuracy of the determined separator Ep value depended on the fractionator Ep_X and the amount of near-density material. For the simple rectangular distribution, the algorithm under predicted the separator Ep, with the error being about 34% of the fractionator Ep_X. For the more realistic feed distribution, there was more scatter in the Ep values, but still the same general trend. The error increased when there was little near-density material. Increasing the number of flow fractions from 7 to 11 brought some improvement in accuracy. However, above 11 fractions there was no further significant improvement. Expressing the partition function in terms of D₇₅ and D₂₅ (instead of D₅₀ and Ep) reduced the sensitivity of the algorithm to the initial guess values.]]> Wed 24 Jun 2020 14:58:42 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:37606 Tue 23 May 2023 20:07:01 AEST ]]> https://nova.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 ]]>