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本工作对克量级铀中微克量钚的分离进行研究。在借鉴前人研究工作的基础上,采用TTA萃取和阴离子交换联用法进行钚的分离。所设计的分离程序如下:1)用氨基磺酸亚铁将镎调至Np(Ⅳ),用TTA萃取除去Np(Ⅳ);2)而后用NaNO2将钚氧化至Pu(Ⅳ),再用TTA将钚从大量铀中提取出;3)用阴离子交换柱对钚进行纯化。实验研究了U、Pu、混合裂变产物在阴离子树脂上的吸附行为
This work is to study the separation of micrograms of plutonium in grams of uranium. On the basis of previous studies, the separation of plutonium was carried out by TTA extraction and anion exchange. The separation program was designed as follows: 1) Np (Ⅳ) was transferred to Np (Ⅳ) by ferrous sulfamate and Np (Ⅳ) by TTA extraction; 2) plutonium was then oxidized to Pu (Ⅳ) with NaNO2, Plutonium is extracted from large quantities of uranium; 3) Purification of plutonium by anion exchange columns. The adsorption behavior of U, Pu and mixed fission products on anionic resin was experimentally studied