The CENTREK extractor is a single-stage, vertically sealed, device which provides centrifugal separation of a 2-phase liquid mixture, generated in a mixing tank beneath. Thus, the CENTREK extractor is characterized as a mixer-(centrifugal)settler device, formed by the funnel-shaped cen-trifugal bowl (settler) with the stirrer in the bottom, submerged into a mixing tank (mixer). The Figure shows a schematic view of the CENTREK extractor. Into a mixing tank (1) with a stirrer (2) sub-merged, two immiscible liquids (e.g. kerosene and water) are continuously supplied. The stirrer is fixed to the bottom of the funnel-shaped centrifuge bowl. When rotating, the stirrer forms a mixture of the two liquid phases. The mixture, filling the mixing tank, reaches the bottom (3) of the rotating bowl and is transferred by a screw conveyor into the bowl (4). In the separation chamber, the centrifugal force cause the mixture to separate radically, and the two pure liquid phases are collected (5) and thrown out from the top of the closed funnel.
