丙烯酸Fe^(3+)型树脂在非水介质中对鞣酸的配位吸附及洗脱性能  

THE COORDINATION ADSORPTION OF TANNIN ON CARBOXYL RESIN LOADED WITH Fe^(3+) AND ITS ELUTION

作　　者：李家政[1] 史作清[2] 姚康德[1] 

机构地区：[1]天津大学高分子材料研究所,天津300072 [2]南开大学高分子研究所,吸附分离功能高分子材料国家重点实验室,天津300071

出　　处：《离子交换与吸附》2005年第1期27-32,共6页Ion Exchange and Adsorption

基　　金：国家自然科学基金(20174017)

摘　　要：将Fe^(3+)载于丙烯酸树脂上,制备了在非水介质中对鞣酸具有良好吸附性能的配位吸附树脂。在甲醇中,树脂对鞣酸的吸附符合Langmuir 单分子层吸附模型,静态饱和吸附量为34mg/g,吸附为粒扩散控制过程。动态吸附中,树脂对鞣酸的泄漏吸附量为 25mg/g,饱和吸附量 32mg/g。采用5%的甲胺乙醇溶液作洗脱剂,洗脱率 95%。树脂在吸附及洗脱过程中未见Fe^(3+)脱落。The coordination adsorption resin, which fits the adsorption of tannin from non-aqueous medium, was prepared by loading Fe3+ on the carboxyl resin. The adsorption of tannin from methanol fits the Langmuir model, and the saturated adsorption capacity was 34mg/g resin. The adsorption was controlled by particle diffusion. In the column operation, the leaking capacity of tannin was 25mg/g and the saturated capacity was 32mg/g. With 5% methamine–ethanol as eluant, the tannin was desorbed 95%, during which no Fe3+ was unloaded from resin.

关 键 词：配位吸附 丙烯酸树脂 鞣酸 分离 

分 类 号：O647.3[理学—物理化学]