https://nova.newcastle.edu.au/vital/access/ /manager/Index en-au 5 Upgrading of positively buoyant particles using an inverted reflux classifier https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:20503 2h. A product grade of 75% was achieved from a feed with a grade of only 0.53%, corresponding to an upgrade of 142. Here, the recovery of the cenospheres was 41%. By increasing the overflow product rate, a significantly higher recovery of 64% was achieved, but at a much lower upgrade of 33. In both cases most of the losses were attributed to fine cenosphere particles, less than 50 μmm, being entrained to the underflow.]]> Sat 24 Mar 2018 07:59:03 AEDT ]]> Upgrading of positively buoyant particles using an inverted reflux classifier https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:27493 Sat 24 Mar 2018 07:25:39 AEDT ]]>