酚醛型吸附树脂在非水体系中对吡啶和N,N-二甲基苯胺的吸附性能研究  

STUDIES ON THE ADSORPTION OF PYRIDINE AND N,N-DIMETHYLANILINE BY A PHENOLIC RESIN ADSORBENT IN NONAQUEOUS SYSTEMS

作　　者：王重[1] 史作清[2] 施荣富[2] 范云鸽[2] 杨益忠[2] 

机构地区：[1]沈阳化工学院材料科学与工程系,沈阳110021 [2]吸附与分离功能高分子材料国家重点实验室南开大学高分子化学研究所,天津300071

出　　处：《高分子学报》2004年第1期59-63,共5页Acta Polymerica Sinica

基　　金：国家自然科学基金资助项目(基金号 2 99740 15)

摘　　要：研究了酚醛型吸附树脂JDW 2在非水体系中对吡啶和N ,N 二甲基苯胺的静态吸附 .由实验结果推论正己烷中树脂对吡啶和N ,N 二甲基苯胺的吸附是以氢键吸附机理为主进行的 ,JDW 2酚醛型吸附树脂在正己烷中 ,等温吸附吡啶和N ,N 二甲基苯胺的平衡吸附数据符合Langmuir方程 ,相关系数在 0 99以上 ,因此 ,酚醛型吸附树脂在正己烷中吸附吡啶和N ,N 二甲基苯胺属单分子层吸附 ;同时对非水体系中乙醇或乙酸乙酯的含量对树脂吸附吡啶和N ,NThe adsorption of pyidine and N,N dimethylanil ine by a phenolic resin adsorbent JDW 2 in nonaqueous systems was investigated under static conditions. Experimental results indicated that the dominating mechanism of adsorption of py ridine and N,N dimethylaniline by the adsorbent in hexane is a hydrog en bonding sorption process.The equilibriu m sorption date for adsorbent JDW 2/pyridine (or JDW 2/N,N dimethylan iline) systems in hexane showed good agreement with the Langmuir isotherm equation.T he correlation coefficients are larger than 0 99. It implies that the sorption of pyridine and N,N dimethylaniline onto the adsorbent in hexane systems is a monomolecular sorption.The influence of ethanol and ethyl acetate concentra tions in hexane solutions on the adsorption of pyidine and N,N dimethylanil ine was also studied.

关 键 词：酚醛型吸附树脂 非水体系 吡啶 N N-二甲基苯胺 吸附性能 静态吸附 氢键 生物碱 中草药 提取 分离 

分 类 号：O647.3[理学—物理化学]