一种新型的分离技术——超临界气体浸出法

A New Separation Technique: Ultra-critical Gas Extraction

超临界气体浸出作为一种新型的分离技术,引起人们极大的兴趣和重视,特别是它可在较低的温度下进行分离操作,因而在节约能源,以及从各类天然物中制取对人体无害的、有益于健康的产品上,有着明显的优点.近十余年来,超临界气体浸出技术在理论和应用研究上取得了迅速的进展.本文就超临界气体的性质,超临界气体浸出的原理和工艺特点,做了综述介绍.

As a new separation technique, ultra-critical gas extraction has aroused people to great interest and attention. It can be operated at low temperatures and thus advantageous to the saving of energy and the making of harmless and healthy products out of various kinds of natural materials The past ten-plus years has witnessed rapid progress researches on the theory and application of ultra-critical gas extraction technique. In this paper, the author gives a comprehensive introduction to the properties of ultra-critical gas and to the principle and technological characteristics of ultra-critical gas extraction.