Present Situation and Problems of the Study on Supercritical Anti-solvent Process Li Zhiyi, Zhang Xiaodong, Hu Dapeng, Liu Xuewu (Dalian University of Technology, Dalian 116012) Abstract Supercritical Anti-Solvent (SAS) process has been proposed recently to prepare micro-and nano-particles by supercritical fluids. After a brief description of the present situation and the potential applications of the process, the paper gives a detailed analysis of the limitations of the published research works, and points out the necessity of the fundamental study and the main problems to be solved. Key words Anti-solvent process, Supercritical fluid, Mass transfer 超临界反溶剂过程的若干问题 李志义 张晓冬 胡大鹏 刘学武 (大连理工大学 大连 116012) 摘要 超临界反溶剂过程是近年来提出的一种利用超临界流体制备超细粉体的新工艺。本文在对该工艺的研究现状及应用前景作了简要介绍后，着重分析了目前研究工作的局限性，论述了机理性研究的必要性以及需要解决的关键问题。 关键词 反溶剂过程 超临界流体 质量传递 李志义 男， 43 岁，教授，博士，从事超临界流体过程的研究。 E-mail:lizy@dlut.edu.cn 国家自然科学基金资助项目(20176003) 2002-04-14收稿，2002-06-21修回 (PDF全文下载c02095)