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研究了用加压离子交换法从堆照产物147Nd中分离147Pm。首先用加压排代色谱法确定了堆照产物147Nd中的主要杂质成分,继而用加压淋洗色谱法以α羟基异丁酸(αHIBA)抗坏血酸(Vc)为淋洗剂,从147Nd中分离147Pm,避免了主要杂质152,154Eu对产品147Pm的污染。研究结果表明,当分离条件为:c(αHIBA)=0.30～040molL、c(Vc)=0.05～0.10molL、pH=400～420、线性流速为8～12cmmin时,分离因子β(NdPm)=3.00,β(EuNd)=2.61。
147 Pm was isolated from the 147Nd stack image by pressurized ion exchange. The major impurity components in the 147Nd of the stack product were first identified by pressurized displacement chromatography and then separated from 147Nd by pressure shower chromatography using alpha hydroxyisobutyric acid (αHIBA) as eluent 147Pm, to avoid the main impurities 152,154Eu 147Pm product contamination. The results showed that the separation factor β (NdPm) was 3.00 when the separation conditions were: c (αHIBA) = 0.30-040molL, c (Vc) = 0.05-0.10molL, pH = 400-420 and linear flow rate was 8-12cm min , β (EuNd) = 2.61.