Study on the Selection of Comminution Circuits for a Magnetite Ore ...Apr 26, 2016 ... different comminution circuits (i.e., jaw crusher + HPGR mill + ball mill, jaw ... The difference in distance between the initial starting point and the ..... is in an open circuit, e.g., a pebble crusher in a AG/SAG circuit, K2 takes the .... Lynch, A.J.; Oner, M.; Benzer, H. Simulation of a closed cement grinding circ...