酚醛型吸附树脂在非水体系中对苯胺衍生物吸附性能的研究

研究了酚醛型吸附树脂JDW-2在非水体系中对苯胺、N-甲基苯胺和N，N-二甲基苯胺的静态吸附．由实验结果推论，在正己烷中树脂对苯胺、N-甲基苯胺和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在正己烷中等温吸附苯胺、N-甲基苯胺和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苯胺、N-甲基苯胺和N，N-二甲基苯胺属单分子层吸附，平衡吸附数据也符合Freundlich方程，n都大于1，表明JDW-2在正己烷中对苯胺、N-甲基苯胺和N，N-二甲基苯胺的吸附是优惠吸附；同时对非水体系中乙醇或乙酸乙酯的含量对树脂吸附苯胺、N-甲基苯胺和N，N-二甲基苯胺的影响进行了研究．

THE STUDY ON THE PRORERTIES OF ADSORPTION OF ANILINE RAMIFICATION BY PHENOLIC RESIN ADSORBENT IN NONAQUEOUS SYSTEM

The adsorption of aniline,NV-methylaniline and N, N-dimethylaniline using phenolic resin adsorbent in nonaqueous system under static conditions were studied. The dominating mechanism of adsorption of aniline, N-methylaniline and N,N-dimethylaniline by phenolic resin adsorbent in hexane was deduced a hydrogen bonding sorption process from the experimental results. The experimental results showed that the equilibrium sorption date for adsorbent JDW-2/aniline (JDW-2/JV-methylaniline or JDW-2/N, W-dimethylaniline) systems in hexane indicated good agreement with the Langmuir isotherm equation and Freundlich isotherm equation. The correlation coefficients were bigger than 0. 99. The sorption of aniline, N-methylaniline and N,N-dimethylaniline in hexane therefore was monomolecular sorption. The exponents were n>1 indication favorable adsorptions. At the same time, the influence of different concentrations of ethanol-hexane and ethyl acetate-hexane solutions on the adsorption of aniline, N-methylaniline and N,N-dimethylaniline were studied.