Patent ID: 7790084

Claim:
A process for fabricating a separation device based on capillary pressure for separating a fluid mixture containing at least two immiscible liquids, each immiscible liquid having a different separation characteristic, which comprises the steps of fabricating a first set of non-porous capillaries with a desired shape, dimensions, and wall material having a first separation characteristic and a second set of non-porous capillaries with a desired shape, dimensions, and wall material having a second separation characteristic, incorporating one end of all of said capillaries into an inlet face, incorporating the second end of said first set of capillaries into a first outlet face, and incorporating the second end of said second set of capillaries into a second outlet face, said outlet faces being separated from one another; wherein each of said different separation characteristics is each liquids' wettability with respect to the capillary wall material.