Abstract
The process of curium and americium separation from solutions after spent fuel reprocessing by displacement complexing chromatography on sulfonic cation exchange resins was reported. Separation runs were performed using a 2-stage chromatographic process sequence. Stage 1 constituted the primary purification and produced the enriched trans-plutonium elements (TPE) concentrate by means of removing the principal quantity of light rare earth elements, namely, La, Ce, Nd, and Pr. Deep refining of the TPE concentrate from the residual chemical and radiochemical impurities was performed at Stage 2. The paper reports the results of three experimental cycles of americium and curium separation. The best results were obtained in Cycle 3, where the key factor was the application of the monodispersed Tokem-308 cationite. The purity of curium in the fraction containing 50% of the feed curium-244 was 99% relative to americium. About 60% of the enriched americium-241,243 fraction contained < 0.1% of Eu-154,155 by radioactivity and < 0.8% of Cm-244 by mass.
Similar content being viewed by others
References
Kharitonov OV, Firsova LA, Milyutin VV, Kozlitin EA (2018) Modern sulfocationites for separation of lanthanides and transplutonium elements partitioning via displacement complexing chromatography. J Radioanal Nucl Chem 317(1):585–592
Love J.T. (1969) Isolation of Prometium-147 by rapid cation exchange chromatography. Ch. A. 72: 27327 K; U.S.A. Energy Comm. DP-1194, P. 29
Hale WH, Love JT (1969) Rapid, gram-scale separation of curium from americium and lanthanides by cation exchange chromatography. Inorg Nucl Chem Lett 5:363–368
Wheelwright EG (1969) A comprasion of eluting agents for the ion-exchange purification of prometium. J Inorg Nucl Chem 31(10):3287–3293
Wheelwright EG (1980) Kilogram-scale purification of americium by ion-exchange. Sep Sci Technol 15(4):783–798
Wheelwright EG (1970) Generic ion-exchange process for recovery and purification of valuable elements from the nuclear industry. In: Proceedings of the conference on ion-exchange in the process industries. Rep.BNWL-SA-1945. 1968, London, pp 202–208
Kharitonov OV, Chuveleva EA, Gelis VM, Firsova LA (1998) Preparation of gram amounts of americium by displacement complexing chromatography. I. Separation of Am-241, Am-243, and Cm-244 from the concentrate of rare-earth and transplutonium elements. Radiochemistry 40(1):64–67
Chuveleva EA, Firsova LA, Kharitonov OV (1998) Effect of chromium and aluminum on americium and lanthanide behavior during chromatographic separation. Radiochemistry 40(2):141–144
Kharitonov OV, Chuveleva EA, Gelis VM, Firsova LA (1998) Preparation of gram amounts of americium by displacement complexing chromatography. II. Separation of isotopically pure 241Am from solutions after processing of long-stored plutonium. Radiochemistry 40(2):130–132
Author information
Authors and Affiliations
Corresponding author
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Kharitonov, O.V., Firsova, L.A., Milyutin, V.V. et al. Separation of curium and americium from spent fuel reprocessing solutions via displacement complexing chromatography on sulfocationites. J Radioanal Nucl Chem 321, 511–518 (2019). https://doi.org/10.1007/s10967-019-06602-w
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10967-019-06602-w