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%.
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)
