2,4-二氯苯酚在超高交联树脂上的吸附性能的研究  

Study on the Adsorption of 2,4-dichlorophenol on the High-Crosslinked Resin

作　　者：吴林[1] 王京平[1] 唐树和[1] 孔祥燕[1] 杨文[1] 陈香[1] 

机构地区：[1]江苏省滩涂生物资源与环境保护重点建设实验室,江苏省盐城师范学院应用化学研究所,江苏盐城224002

出　　处：《广东化工》2009年第6期17-19,251,共4页Guangdong Chemical Industry

基　　金：江苏省滩涂生物资源与环境保护建设重点实验室开放项目(JLCBE06001);江苏省教育厅自然科学研究指导性项目资助项目(08KJD150020);江苏省高等学校大学生实践创新训练计划项目

摘　　要：比较了超高交联聚苯乙烯吸附树脂与大孔吸附树脂Amberlite对2,4-二氯苯酚的静态和动态吸附行为。结果表明:在288～318K和研究的浓度范围内,JP-1和XAD-4对2,4-二氯苯酚的吸附平衡数据符合Freundlich吸附等温方程。吸附为吸热过程,适当降低温度有利于吸附,并计算了2,4-二氯苯酚在JP-1、XAD-4树脂上的吸附焓变、自由能变、吸附熵变,对吸附行为进行了合理的解释。A comparison study was made on the adsorption behaviors of 2,4-dichlorophenol on the new type high-crosslinked adsorption resin（JP- 1 ） with that on Amberlite XAD-4, including the static equilibrium adsorption. Equilibrium data for the adsorption of 2,4-dichlorophenol, from aqueous solutions by Amberlite XAD-4 polymeric adsorbent and JP- 1 within temperature range of 288-313 K had been obtained and were correlated with a Freundlich-type of isotherm equation. The adsorption was exothermic process, and thus lower temperature was better for adsorption. Estimations of the isosteric enthalpy of adsorption, flee energy, and entropy of adsorption were reported and the adsorption behaviors were reasonably interpreted.

关 键 词：超高交联树脂 JP-1 2 4-二氯苯酚 吸附热力学 

分 类 号：TQ32[化学工程—合成树脂塑料工业]