Chemical treatment and flotation Flotation: Removal of hydrophobic impurities 20µm-300µm in minerals or metals. Chemical Treatment: Treatment of particles in acid/base to remove impurities, including neutralization, dewatering. ReSiTec pilots Dewatering and drying systems08/02/2018 Chemical treatment and flotation08/02/2018 Magnetic and electrostatic separation08/02/2018 Classification of powder08/02/2018 Crushing and Milling08/02/2018