COMMINUTION
Comminution is particle size reduction by breaking, crushing, or grinding of ore, rock, coal, or other materials. It is a critical component in most mineral processing flow sheets and can serve several purposes, including:
- liberating valuable minerals that are locked within waste rock
- increasing available surface area for chemical reactions
- producing particles within a particular size range to meet product specifications
In order to properly evaluate the crushing and/or grinding characteristics of a material, Hazen Research, Inc. engineers must first consider the size distribution, shape, and nature of the feed material. In addition to a full complement of laboratory and pilot-scale size-reduction equipment, we also have the necessary classification and particle size determination facilities. Working with the Mineralogical Laboratory, we develop and optimize size reduction flow sheets.