Method of floating and flotation circuit

摘要

The invention is a flotation circuit for separating concentrates from slurry comprising grinded ore or oil sand. The slurry is floated in a flotation circuit that comprises flotation cells arranged is series or in parallel, and the slurry is divided at least into two fractions in a flotation cell system that is arranged to receive a feed of mineral slurry from a grinding circuit and provided with at least two outlet openings for discharging tailings with different particle size distributions. The flotation circuit also comprises cell lines, i.e. banks of cells, that are arranged to receive the tailings from the outlet openings of the receiving cell and adapted to process slurries with different particle size distribution.