Full definition
Mineral concentration machine that separates valuable minerals from gangue by injecting air into an aqueous pulp containing chemical reagents. Hydrophobic particles (treated with collectors) attach to rising bubbles and float as a froth. Cell volumes: 1–660 m³. Dominant process in Cu, Zn, Pb, Mo plants. Brands: Outotec (Metso), FLSmidth, Eriez. Typical recoveries: 85–95%.