不同体系中D401对铈(Ⅲ)的吸附及解吸行为研究  

Studies on the Adsorption and Elution Behavior of Cerium(Ⅲ) onto Diglycolamidic Acid Resin in Different Systems

作　　者：王永江[1] 陈宣友[2] 赵清泉 

机构地区：[1]丽水学院化学系,浙江丽水323000 [2]松阳县第一中学,浙江松阳323400 [3]丽水市大洋路学校,浙江丽水323000

出　　处：《丽水学院学报》2005年第2期40-42,共3页Journal of Lishui University

基　　金：丽水学院青年基金资助项目(QN03009)

摘　　要：研究了在邻苯二甲酸—HC1(NaOH)、HAc—NaAc及柠檬酸钠—HC1(NaOH)三种缓冲体系中亚胺基二乙酸螯合树脂(D401)对稀土元素铈(Ⅲ)的吸附行为,测定了D401对铈(Ⅲ)的吸附容量,结果表明:pH=5.6的HAc—NaAc体系为吸附的最佳体系,静态饱和吸附容量达178.9mg/g·树脂。吸附了铈(Ⅲ)的树脂分别用HC1和NaC1—HC1溶液作解吸剂,结果以0.15mo1/lNaC1-0 1mo1/lHC1为最佳,解析率达100%。The adsorption behavior of diglycolamidic acid resin(D401)for Cerium(Ⅲ)was investgated in KHC_8H_4O_4-HCl(NaOH)?HAc-NaAc and C_6H_5O_7Na-HCl(NaOH) buffer solution , respectively. Experimental results show that the HAc-NaAc buffer solution of pH=5.6 is the best adsorption system for Cerium(Ⅲ).The statically saturated adsorption capacity is 178.9mg/g.The elution test of D401 having adsorpted Ce(Ⅲ)was carried out by using HCl and HCl-NaCl,The results show that the best eluent is 0.1mol/l HCl-0.15mol/l NaCl,the elution rate reaches 100%.

关 键 词：亚胺基二乙酸树脂 D401 铈 吸附 解吸 高分子材料 稀土元素 

分 类 号：O614.332[理学—无机化学]