论文部分内容阅读
前言第二次世界大战期间,为回收核燃料而对萃取过程进行深入研究后,溶剂萃取才发展成一种重要的工业方法(极少例外,特别是石油行业)。从那时起,溶剂萃取在金属的分离、芳香族物质的分离和近年的废水处理中获得了越来越多的应用。早期的应用是依据物质在两个不互溶的溶剂之间的分配(溶解度)的不同,而新近的处理法大多包括化学反应、温度和
INTRODUCTION Solvent extraction developed into an important industrial method (with few exceptions, especially in the oil industry) after intensive research into the extraction process to recover nuclear fuel during World War II. Since then, solvent extraction has gained more and more applications in the separation of metals, the separation of aromatics, and wastewater treatment in recent years. Early applications were based on the difference in the partitioning (solubility) of the substance between two immiscible solvents, whereas most of the recent treatments include chemical reactions, temperature and