Abstract: Improved apparatus for effecting contact between first and second immiscible fluids in order to provide mass transfer therebetween including a conduit having a fiber bundle or a plurality of fiber sub-bundles secured or mounted therein, the fiber bundle or sub-bundles having a plurality of elongated support members positioned within the bundles for alleviating stress from the fibers within the bundle or sub-bundles.

Abstract: A component of at least one of two immiscible liquids is transferred into the other liquid by introducing one of the liquids (the "first liquid") onto the surface of fibers extending generally linearly along a conduit with the fibers filling the cross-sectional area of at least a portion of the length of the conduit and being wetted preferentially by the first liquid, flowing the other liquid (the "second liquid") through the conduit past the fibers thereby dragging a film of the first liquid along the fibers, collecting the liquids in a gravity separator approximate the downstream end of the fibers and then separately removing the two liquids from the separator.