离子交换与吸附

研究了由悬浮缩聚法制备的多孔漆酚醛树脂微球对乙二胺、二乙烯三胺和茶碱,以及苯、二甲苯、氯仿和四氯化碳等气体的吸附性能,并研究了吸附时间对乙二胺、二乙烯三胺和茶碱吸附性能的影响。结果表明,树脂中的酚羟基因能与胺基产生酸碱之间的作用而吸附乙二胺和二乙烯三胺,其吸附量分别为320.9mg/g、222.2mg/g;该多孔微球亦能吸附有机物气体,尤其对氯仿、四氯化碳的吸附性能较佳,其吸附量分别为248.1mg/g和119.7mg/g。

The adsorptive properties of porous urushiol-formaldehyde resins for ethylenediamine, diethylenetriamine, thephylline and some organic gases such as benzene, xylene, trichloromethane and tetrachloromethane, and the effect of time on adsorption of ethylenediamine, diethylenetriamine and thephylline were studied. The adsorbent with phenolic hydroxyl adsorbed ethylenediamine and diethylenetriamine through acid-alkali neutralization interaction, their adsorption capacities were 320.9mg/g, 222.2mg/g respectively; this porous microsphere could adsorb organic gas also, especially had good adsorption characterization for trichloromethane and tetrachloromethan, their adsorption capacities were 248.1mg/g, 119.7mg/g respectively.