Patent ID: 8404121
Filing Date: 2013-03-26
Classification: B01D,B03D,C02F

Abstract:
1. A separation process comprising: (a) providing a separation vessel comprising (i) a fluid inlet, (ii) a solids outlet comprising an overflow conduit having a height h (b) feeding an aerated inlet mixture to the separation vessel via the fluid inlet at a flowrate Q (c) separating the inlet mixture in the separation vessel into (i) an upper float layer comprising aerated solids and being located at a second position, and (ii) a lower clarified layer comprising a clarified fluid and being located at a third position, the second position being relatively further away from the base portion of the separation vessel than the third position; (d) withdrawing the upper float layer from the separation vessel via the overflow conduit; (e) withdrawing the lower clarified layer from the separation vessel via the fluid outlet at a selected flowrate Q (f) performing (a)-(e) as a continuous separation process with a control process comprising: