Beneficiation of concentrated ultrafine suspensions with a Falcon UF concentrator

CIM Journal, Vol. 2, No. 4, 2011

J.-S. Kroll-Rabotin, F. Bourgeois, É. Climent

Falcon concentrators are enhanced gravity separators designed for concentrating fine particles. The Falcon UF model is unique in that it is dedicated to beneficiation of ultrafines, one key feature being that it does not make use of any fluidization water. We investigated the physics of particle transport inside Falcon concentrators, and concluded that separation efficiency is governed by differential settling velocity. We derived and published a predictive model of the partition function under dilute conditions. We intend to extend the initial model to concentrated ultrafine suspensions for application to industrial scenarios by adding hindered settling to account for solid concentration effects.

Keywords: Centrifugal, Gravity, Concentration, Falcon UF, Modelling