Ash Depression in Fine Coal Flotation Using a Novel
Coal samples used in this study were obtained from a mine located in Southern Illinois, USA. The asreceived run- -of-the-mine coal was first crushed in a jaw crusher (2 6 model, Sturtevant Inc., Hanover, MA, USA) and then further crushed in a roll crusher (8 5 model Sturtevant Inc., Hanover, MA, USA) to a size of 850 μm.Por Le Crushing Plant Supplier. Finally, a labor-