膜萃取的应用研究

Study on the applications of membrane extraction

膜萃取是膜分离与液－液萃取相结合的一种新型分离技术。本文综述了膜萃取在金属萃取、有机物萃取、生化产物及药物萃取以及膜萃取生物降解反应器和酶膜反应器等方面的研究，讨论了膜萃取付诸实施的关键。指出，当前膜萃取过程付诸实施的关键是膜材料的开发和传质的强化并提出中空纤维膜萃取器是实现膜萃取的重要装置。

Membrane extraction is a new separation technique combining membrane separation with liquid liquid extraction. Applications of membrane extraction are described in this paper. Its applications in extracting metals, organic substances, bio products and pharmaceuticals and in membrane extractive biodegradation reactors and enzyme membrane reactors are reviewed respectively. It is pointed out that the key to putting membrane extraction into operation lies in the development of membrane materials and the enhancement of mass transfer. It is also pointed out that the extractor based on hollow fiber is the key device for membrane extraction.