Abstract
Two-phase comminution-liberation model is developed to investigate the effects of raw material properties and operating conditions on mineral liberation. To represent the raw material properties, the distribution function on the constituent mineral grain size is proposed by the introduction of run theory.
The simulation results indicate how the mineral grain size and the size of progeny particles after comminution affect mineral liberation. It is also shown that the fractional degree of mineral liberation (FDL), i. e., degree of mineral liberation at a constant particle size, is independent of the reduction ratio, while the shape of FDL curve does not change by the breakage properties and content of valuables.
