Abstract: A facility (50) for mixing/separating two immiscible liquids (22, 24) having different densities, said facility including a mixer (52) combined with a settler (14), the mixer including a tank (16) provided with two liquid inlets (18, 20); an agitator (28) located in the tank, the agitator being mounted on a shaft (30) rotating around a vertical axis (32); and a lift pump (54) located above the agitator. The pump includes a moving body (56) rotatable along the vertical axis (32), the moving body defining a first frustoconical inner surface (60) positioned along the vertical axis and upwardly flared, and a body (66) that is stationary relative to the tank, the stationary body defining a second frustoconical inner surface (68) positioned along the vertical axis and upwardly flared, the second frustoconical inner surface being situated substantially in an extension of, and above, the first frustoconical inner surface.

Abstract: A facility (50) for mixing/separating two immiscible liquids (22, 24) having different densities, said facility including a mixer (52) combined with a settler (14), the mixer including a tank (16) provided with two liquid inlets (18, 20); an agitator (28) located in the tank, the agitator being mounted on a shaft (30) rotating around a vertical axis (32); and a lift pump (54) located above the agitator. The pump includes a moving body (56) rotatable along the vertical axis (32), the moving body defining a first frustoconical inner surface (60) positioned along the vertical axis and upwardly flared, and a body (66) that is stationary relative to the tank, the stationary body defining a second frustoconical inner surface (68) positioned along the vertical axis and upwardly flared, the second frustoconical inner surface being situated substantially in an extension of, and above, the first frustoconical inner surface.