ENERGY SAVINGS AND TECHNOLOGY COMPARISON USING .
XXV INTERNATIONAL MINERAL PROCESSING CONGRESS (IMPC) 2010 PROCEEDINGS / BRISBANE, QLD, ... A regrind ball mill with a mix of small grinding media ... FIG 1 Infl uence of feed rate on mill reduction ratio in 1250 HP Vertimills. 1 10 10 100 1,000 10,000