Separation of gram quantities of uranium from fission products by extraction chromatography

Research paper by Yin Dongguang, Liang Yufu, Miao Zengsheng, Li Baolong, Bai Chunqi, Luo Zhifu

Indexed on: 01 Dec '02Published on: 01 Dec '02Published in: Journal of Radioanalytical and Nuclear Chemistry


The separation of gram quantities of uranium from fission products has been investigated by extraction chromatography. The separation which is based on the difference in distribution coefficients between uranium and the fission products on a tributyl phosphate (TBP) resin in nitric acid medium, was carried out by means of high acidity feed and stepwise elution on a TBP chromatography column. The results show that this technique is capable to separate 5 g of uranium from a large quantity of fission products. The recovery of uranium is more than 99%. The decontamination factors of g- and b-activities were 2.1.103 and 2.3.103, respectively.