摘要
本文报道了氯型大孔强碱型阴离子交换树脂吸附银(Ⅰ)和钯(Ⅱ)的性能和机理,以及分离Pd-^(111)Ag的最佳条件。通过综合考虑参与离子交换的[AgCl_4]^(3-)和[PdCl_4]^(2-)在柱色谱上的分离系数和理论塔极数,选择了6mol/l HCl为洗脱液,产品^(111)Ag收率95％,Pd杂质含量小于3×10^(-5)％。本方法在分离效果和操作方便性上均比文献已有报导的从堆照钯中分离无载体^(111)Ag的阴离子交换分离法有所提高。
The sorption behaviors and mechanisms of macro-porous anion exchange resin toward silver (Ⅰ) and palladium (Ⅱ) in hydrogen chloride solution have been investigated in this paper. The optimum conditions for the separation of silver and palladium, which exist in the species of [AgCl4]3-and [PdCl4]2- respectively, have also been studied. In the anion exchange column, 111Ag is efficiently isolated from irradiated palladium, with a recovery of radioactivity 95%, and palladium contaminant less than 3×10-5.
出处
《北京大学学报（自然科学版）》
CAS
CSCD
北大核心
1991年第4期444-451,共8页
Acta Scientiarum Naturalium Universitatis Pekinensis
关键词
银
无载体
分离
阴离子
交换树脂
Ag-111
Carrier-free
Separation
Anion exchange resin
