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Applications of MP-1 anion exchange resin and Eichrom LN resin in berkelium-249 purification

Conference · · Journal of Radioanalytical and Nuclear Chemistry
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Purification of berkelium-249 (249Bk) at Oak Ridge National Laboratory requires a multi-step process with Bk Finishing as the final step. The current multi-process takes 6–7 months, including ~ 3 months spent on Bk Finishing. Recent trials of using columns of either LN resin or MP-1 anion exchange resin adsorbing the tetravalent 249Bk4+ in 8M HNO3-0.5M NaBrO3, followed by eluting impurities (e.g. Ce4+, Cf3+) and stripping 249Bk resulted in a new dual column method of selectively separating 249Bk from other trans-curium elements and fission product impurities, which is proposed to replace the current Bk Finishing with higher Bk purification efficiency and shorter processing period. This paper displays the experimental results and describes the dual column method with relevant chemistry issues.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
DOE Contract Number:
AC05-00OR22725
OSTI ID:
1502596
Conference Information:
Journal Name: Journal of Radioanalytical and Nuclear Chemistry Journal Issue: 1 Journal Volume: 318
Country of Publication:
United States
Language:
English

References (4)

New method for rapid separation of berkelium(IV) from cerium(IV) by anion exchange journal December 1967
Separation of californium from curium and berkelium from cerium by extraction chromatography journal June 1967
Electromigration of Bk(IV) and some other tetravalent cations in nitric acid solutions journal March 1979
Isolation of berkelium by solvent extraction of the tetravalent species journal January 1957

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