The effect of slurry density on the dynamics and grinding behavior of a batch ball mill was studied using quartz as a test material. It was found that slurry density determined the distribution of solid charge in the mill, with migration of particles from the tumbling zone to the mill periphery as solid concentration was progressively increased. Effect of Slurry Density on Load Dynamic and Milling Performances in an Iron Ore Ball Mill -On-line Estimation of In-mill Slurry Density April 2012 DOI 10.13140/2.1.4625.8561