摘要
酚醛型吸附树脂在水体系中吸附苯胺、N 甲基苯胺和N ,N 二甲基苯胺在初始阶段 (达到平衡吸附量的 2 1 5 %～ 4 8 9%时 ) ,吸附速率数据和半经验速率方程吻合 ;酚醛型吸附树脂等温吸附苯胺、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 ,酚醛型吸附树脂对这3种苯胺化合物的吸附属单分子层吸附。平衡吸附数据符合Freundlich方程 ,n均大于 1,表明树脂对苯胺等的吸附是优惠吸附。
The adsorption of aniline, N-methylaniline and N,N-dimethylaniline on phenol formaldehyde resin(JDW-2) in aqueous solutions under static conditions has been studied. A semi-empirical rate equation adequately fits the sorption rate data of the three anilines in the initial period, that is, the adsorption is attained at about 21.5%～48.9% of equilibrium sorption. The equilibrium adsorption data for three aniline compounds in aqueous solutions are in good agreement with the Langmuir isotherm equation and Freundlich isotherm equation. The correlation coefficients are bigger than 0.99. The sorption of the three compounds in aqueous solutions is monomolecular layer adsorption with n>1.
出处
《应用化学》
CAS
CSCD
北大核心
2003年第12期1129-1134,共6页
Chinese Journal of Applied Chemistry
基金
国家自然科学基金项目 ( 2 0 1740 17)
