A method and apparatus for separating immiscible liquids in a dispersion
containing an aqueous liquid and at least one dispersed non-aqueous
liquid by passing the dispersion through a series of absorbents,
preferably polymeric. The direction of the flow through the absorbent is
periodically changed. The period required before a change of the flow
direction is established by the differential pressure. There is a gradual
increase in the differential pressure across the absorbents which
indicates a blockage due to viscous oil and/or solids. The product
produced by the method and the apparatus of the invention is a polished
non-aqueous phase and a polished aqueous phase both having low
contaminant levels. In a preferred embodiment when solids are also
present in the dispersion, a solids stream is also recovered.