بررسي فلوتاسيون ذرات سيليس بر اساس ويژگي زبري آنها

Study of Silica Particles Flotation according to their Surface Roughness Characteristics

Surface roughness is due to fluctuations around a surface of solid which plays vital role in subsequent processes such as flotation. Grinding by different mills causes major changes in surface roughness of particles, which affect the flotation characteristics. In this study, surface roughness of silica particles was determined by measuring the specific surface area of particles. The wettability characteristics and flotation rate of particles with different surface roughness were determined using a laboratory flotation cell. Results have shown that rod mill product has higher surface roughness than ball mill product. Also flotation rate of particles increases with increasing the surface roughness of particles.