One of the modern techniques for separating components from solution is the application of Liquid membranes. The ability to selectively transport mixture components in which a liquid membrane forms a distinct phase which separates two other liquid or gas phases is revealed. To increase the mass-transfer effectiveness, the flow of two crossing streams is produced: the membrane and feeding solution and the membrane and receiving solution in such a system that a vortex flow is achieved. This causes a renewal of the contact area and considerable intensification of mass transfer.