中文摘要：

通过静态吸附试验，研究了强碱性树脂IRA-400对富马酸的吸附性能。结果表明，该树脂与弱碱性树脂IRA-94相比，受pH值影响较小，在pH=3．5时，该树脂对富马酸具有较好的吸附性能，其静态饱和吸附容量为1．466mmol／g湿树脂；该树脂对富马酸的吸附等温线符合Freundlich等温方程，在298．15K，308．15K和318．15K下的相关系数R^2均大于0．99，方程的特征参数n〉1，属“优惠吸附”；吸附过程△G〈0，△S〈0，△H〈0，表明此反应过程是放热的，自发进行的，降低温度有利于吸附反应的发生；吸附动力学研究表明，IRA-400树脂对富马酸的吸附过程主要受液膜扩散控制。

英文摘要：

The adsorption behavior of strong basic resin IRA-400 for fumaric acid was studied through static experiments. The results concluded that, comparing with IRA-94, this resin was less influenced by pH. The optimal pH value for adsorption in the medium of fumaric acid was pH 3.5 and the statically saturated adsorption capacity was 1.466mmol/g wet resin. The adsorption data were correlated with Freundlich isotherm equation, and the correlative coefficients （R^2） all exceeded 0.99 at 298.15K, 308.15K and 318.15K. Characteristic parameter of this equation n〉1. Thermodynamic parameters such as AG, AS, AH were calcultated from the slope of the linear plot of lnQe against lnCe. The negative value of AG, AS, and AH indicated that the adsorption process was exothermic, spontaneous and thermodynamically favourable, lower temperatures favored the process. The kinetics experiments showed that the liquid film diffusion was the rate-controlling step and furthermore the diffusion coefficient was calculated.