빈약한 자원의 개발, 대기와 수질오염의 처리와 에너지의 절감을 위하여 경제적인 새로운 분리기술의 창안이 요구된다.
최근에 흥미를 끌고 있는 새로운 분리방법의 하나인 액체막에 의한 물질분리에 관하여 그와 분리기구를 개설하였다. 응용예로 탄화수소혼합물의 분리, 이온의 분리, 아민의 분리와 촉매액막을 이용한 반응에 대하여 간단히 소개하였다.

At present, new low cost separation techniques are needed for using poor resources, treatment of air and water pollution, and cutting down the separation energy.
Much attention has been directed toward the liquid membrane separation process which is one of the recently developed separation techniques. The transfer phenomenon has been observed with supported and unsupported liquid membranes, and especially the mechanism has been described with regard to the outline of passive diffusion, facilitated diffusion and facilitated transport.
The potential applications to the separation of hydrocarbons, the recovering of ions by using carrier-containing membrane and the catalytic liquid membrane reaction have been briefly considered.