1 摘要: 超临界流体萃取(简称 SFE )是一种新型的萃取分离技术,广泛应用于工业、石油、食品、医药、环保等领域。介绍了超临界流体萃取技术的发展历史、基本原理、性质、应用情况和它的发展前景。关键词: 超临界流体;萃取;分离;应用 Abstract :The SFE,w hich isakind ofnew extraction and stripping technique,is 2 widely used inthe industrial,petroleum,food-stuff,medical,environmental protection and other paper introduces the developing history,basic principles,characteristics,applying situation and developing prospect ofthe SFE technique. Key words :supercritical fluid ;extraction ;separation;application 目录前言......................................................................................................................................... 4 1超临界流体萃取技术的发展史........................................................................................... 4 2超临界流体萃取的基本原理............................................................................................... 5 超临界流体( SCF )的特性..................................................................................... 5 超临界流体萃取分离的原理.................................................................................... 7 超临界流体的性质.................................................................................................... 7 3 无毒和不易燃性............................................................................................... 7 有较低的临界温度和临界压力....................................................................... 7 超临界流体的传递性质................................................................................... 7 超临界流体的溶解性....................................................................................... 7 超临界流体的萃取选择性............................................................................... 8 影响萃取的因素........................................................................................................ 8 3超临界萃取的特点............................................................................................................... 9 4超临界流体萃取过程的典型流程........................................
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