超临界流体技术发展及应用概述

综述了超临界流体技术在萃取、化学反应，材料制备等方面的研究进展及超临界流体技术的应用。提出在萃取方面，超临界流体可以克服传统方法带来的环境污染和后处理困难等缺点，还能萃取传统方法难于萃取的热敏性天然产物等；在化学反应方面，用超临界流体可以避免使用有毒有机溶剂，提高反应速度和选择性，而且可以通过改变压力和温度调节反应转化率和产物选择性；在材料制备方法，可以得到与常规方法形态；性能不同的产品。

Development and Application of Supercritical Fluid Technology

This review summarized the use of supercritical fluid (SCF) for extraction, chemical reaction and material preparation. As far as be concerned, supercritical fluid extraction (SFE) can overcome the deficiency of conventional methods, for instance the environmental pollution, difficulty in post-treatment and extraction of thermosensitive materials. In the field of chemical reaction, SCF exhibits many advantages such as avoiding use of harmful organic solvent, elevating the speed and selectivity of reaction, and adjusting the conversion of reactant and selectivity of product through changing pressure and temperature. Finally, the products with special properties will be obtained by use of the new techenique in material preparation.