SEPARATION OF FISSION PRODUCTS AND ACTINIDES BY HIGH PERFORMANCE LIQUID CHROMATOGRAPHY
High Performance Liquid Chromatography (HPLC) with finely graded cation exchange resins is tested with a view to applying it in the second part of a general actinide separation scheme. After extraction of U and Pu by TBP and adjustment of the acidity in the first part, the higher actinides are separated from fission products by means of HPLC. The feed solution used was a simulated HAW (high activity waste) solution containing fission products and actinides corresponding to a burn-up of 3.3 % of a (U-0.82Pu-0.18)O-2 fuel. Residual very small amounts of Pu have been detected by alpha spectrometry, the other elements by gamma spectrometry. The non-radioactive elements of interest have been marked with commercially available tracers or with material activated by neutrons from a 252-Cf source. The interest in isolating Cs and Sr from the waste stream is the troublesome behaviour of these relatively long-lived elements in the waste treatment procedures. These experiments have been done on a 3 ml column at 5% loading. Scaling up to a 500 ml column at 12% loading should allow the separation of fission products and actinides from a HAW solution obtained by reprocessing 200 g irradiated fuel from a fast breeder reactor.
Bibliographic Reference: 15EMES JOURNEES DES ACTINIDES, LIEGE (BELGIUM), FEB. 24-26, 1985 WRITE TO CEC LUXEMBOURG, DG XIII/A2, POB 1907 MENTIONING PAPER E 31930 ORA
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Record Number: 1989124015000 / Last updated on: 1987-01-01
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