Flotation apparatus and flotation process

The invention relates to a flotation apparatus with a flotation chamber (2) having a side wall and a base (9), a stirrer (3), a sparging device (3) associated with the stirrer, a first foam-collecting device (5) arranged in an upper region of the flotation chamber for a foam product formed in the course of flotation, and a charge line (6) for charging the flotation chamber with slurry, wherein the charge line opens into the flotation chamber at a point (19) above the stirrer and an ejector (7)is present in the charge line. The invention also relates to a flotation process which is performed in two stages within a flotation chamber (2) of a flotation apparatus (1), wherein an ejector (7) is used in a first flotation stage and a stirrer (3) in a second flotation stage.