摘要
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 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.
出处
《南开大学学报（自然科学版）》
CAS
CSCD
北大核心
2003年第3期32-37,共6页
Acta Scientiarum Naturalium Universitatis Nankaiensis
基金
国家自然科学基金资助项目(29974015)
