Physical Bauxite Processing: Crushing and Grinding of …
The ball mill is most often closed over a classifier like a hydro cyclone ... Typically grinding circuits that employ ball mills will produce a P80 in the range 200–400 μm while the rod mill typically produces a P80 in the range 500 to 800 microns. At the top end of the product size distribution this rod mill circuit produces a P98/99 of ...