摘要
采用动态法研究阴离子交换树脂吸附柠檬酸(CA)中硫酸根离子,通过分析溶液相和树脂相中柠檬酸与SO24-的变化趋势,确立了阴离子离交树脂上柠檬酸与硫酸根离子的交换机理。研究表明,强碱性阴离子交换树脂中吸附的CA-不能被柠檬酸液中SO24-置换出;反之,弱碱性离子交换树脂所吸附的CA-可被柠檬酸液中SO24-置换出,且功能基团为树脂吸附柠檬酸液中硫酸根离子的重要因素。
Using the dynamic method to study the anion exchange resin and its property for adsorption of sulfate ion from citric acid （CA） solution by the dynamic ion exchange method, and the anion exchange mechanism between CA and sulfate ion was determined by analyzing the concentration trends of CA and sulfate ion in solution and resin. Research indicated that the citric anion couldn＇ t be replaced by SO42- in CA solution for strong-base anion exchange resin, whereas SO^- could replace citric anion for weak-base anion exchange resin, and the functional group of resin played a significant role in adsorption of SO^- form CA solution.
出处
《应用化工》
CAS
CSCD
2013年第6期1043-1046,共4页
Applied Chemical Industry
基金
中央高校基本科研业务费专项资金资助(JUSRP11205)
