苯酚在浊点萃取中凝聚层相的增溶规律  

SOLUBILIZATION OF PHENOL IN COACERVATE PHASE OF CLOUD POINT EXTRACTION

作　　者：王志龙[1] 赵凤生[1] 李道棠[2] 

机构地区：[1]上海交通大学药学院,上海200030 [2]上海交通大学生命科学技术学院,上海200030

出　　处：《化工学报》2003年第10期1387-1390,共4页CIESC Journal

摘　　要：采用分光光度法测定了苯酚在非离子表面活性剂单相胶束溶液中和在非离子表面活性剂两相浊点萃取时凝聚层相中的增溶结果 .实验表明 :溶质在凝聚层相的增溶与表面活性剂形成胶束的结构有关 .当凝聚层相的表面活性剂形成正相胶束时 ,溶质在凝聚层相的增溶规律和在表面活性剂胶束溶液中的增溶规律一致 ;当凝聚层相的表面活性剂形成反相胶束时 ,溶质在凝聚层相和在溶液相的浓度关系可理解为在这两种溶剂之间的分配随着凝聚层相的含水率逐渐降低趋近于一定值 。Solubilization of phenol in micellar solution of nonionic surfactant and in coacervate phase of cloud point extraction was investigated with spectrometer method. The result showed that solubilization of phenol in coacervate phase was related to the structure of surfactant micelle. If the surfactant in coacervate phase forms a normal micelle, solubilization of phenol in coacervate phase is the same as that in surfactant solution. If the surfactant in coacervate phase forms a reverse micelle, the concentration relationship of phenol in coacervate phase and in aqueous phase can be regarded as the solute partition in these two kinds of solvent. When the water content in coacervate phase decreases to a constant value, the partition coefficient of phenol approaches a constant.

关 键 词：苯酚 增溶 非离子表面活性剂 浊点萃取 凝聚层相 

分 类 号：O648.12[理学—物理化学]