Patent ID: 6419619
Filing Date: 2002-07-16
Classification: B01D,B04B

Abstract:
A method for the continuous separation of emulsion into light liquid, heavy liquid and nonsoluble solids phases to separate organic substances in waste generated by solvent extraction processes, comprising:radial feeding the waste at one end into an axial section of a differential rotary field having a substantially horizontal axis, rotary dragging means and perimetral rotary means rotating with a different angular speed and in the same direction as the rotary dragging means whereby the waste is separated into the heavy liquid, nonsoluble solids and light liquid separations zones disposed at periphery, intermediate and axial zones, respectively, in the differential rotary field; providing a first radial annular adjustment means for the level of the light liquid phase separation zone, the first radial annular adjustment means being static with respect to the perimetral rotary means, the first radial annular adjustment means acting as an overflow outlet lip to allow the flow of the light liquid phase out of the differential rotary field; providing a second radial adjustment means for the level of the heavy liquid separation zone, the second radial adjustment means acting as an overflow outlet for the heavy liquid phase at the center of the perimetral rotary means; discharging the light liquid phase through the first radial annular adjustment means; discharging the heavy liquid phase through the second radial adjustment means at the center of the perimetral rotary means; and discharging the nonsoluble solids phase at the other end of the rotary dragging means.