Journal of Industrial and Engineering Chemistry, Vol.15, No.1, 86-91, January, 2009
A study on the recovery of actinide elements from molten LiCl.KCl eutectic salt by an electrochemical separation
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Pyroprocessing is a prominent way for the recovery of the long-lived elements from the spent nuclear fuel. Electrorefining is a key technology for pyroprocessing and generally composed of two recovery steps.deposition of uranium onto a solid cathode and the recovery of TRU (TRansUranic) elements. In this study, it was investigated on electrochemical separation of actinides to develop an actinide recovery system in a molten LiCl.KCl eutectic salt. In the electrorefining experiment, uranium was successfully separated from cerium. The effects of the anode material and the surface area were investigated during the electrolysis experiments for a more efficient electrorefining system. Anode potential decreased with an increasing anode surface area, however, an anode effect was observed in case of a complicated anode structure for high surface area. Glassy carbon was found to be the best anode material among the
molybdenum, graphite, glassy carbon, and oxide materials. It was found that the solid cathode with a perforated ceramic container could be one of the candidates for a salt clean-up process to remove residual actinide elements in the salt after the recovery step.
- Laidler JJ, Battles JE, Miller WE, Ackerman JP, E.L. Carls, Prog. Nucl. Energy, 31, 131 (1997)
- Kwon SW, Kim EH, Yoo JH, Kim BH, Ahn BG, Shim JB, Woo MS, J. Korean Ind. Eng. Chem., 12(5), 528 (2001)
- Kwon SW, Kim EH, Ahn BG, Yoo JH, Ahn HG, J. Ind. Eng. Chem., 8(5), 477 (2002)
- Anderson S, Ekberg C, Lilijenzin JO, Nilsson M, Sharnemark G, Partitioning and transmutation, Annual Report R-04-22, Swedish Nuclear Fuel and Waste Management Co., Stockholm, Sweden, February (2004)
- Chang YI, Nucl. Technol., 88, 129 (1989)
- Laidler JJ, Miller WE, Johnson TR, Ackerman JP, Battles JE, IFR fuel cyclepyroprocess development, Report ANL/CMT/CP-77849, Argonne, IL, USA (1992)
- Laidler JJ, Report ANL/CMT/CP7893, Pyrochemical Recovery of Actinides, Argonne National Laboratory, Argonne, IL, USA (1993)
- Ackerman JP, Ind. Eng. Chem., 30, 141 (1991)
- Kim JG, Lee JH, Kim IT, Kim EH, J. Ind. Eng. Chem., 13(2), 292 (2007)
- Willit JL, Miller WE, Battles JE, J. Nucl. Mater., 195, 229 (1992)
- Uzomi K, Iizuka M, Kato T, Inoue T, Shirai O, Iwai T, Arai Y, J. Nucl. Mater., 325, 34 (2004)
- Koyama T, Iizuka M, shoji Y, Fujita R, Tanaka H, Kobayashi T, Tokiwai M, J. Nucl. Sci. Technol., 34, 384 (1997)
- Serp J, Malmbeck R, Yukab E, Glatz JP, Electroseparation of actinides on solid aluminum in LiCl.KCl eutectic, in: GLOBAL 2003, New Orleans, LA, USA, November 16-20 (2003)
- Serp J, Malmbeck R, Scheppler C, Glatz JP, Electroseparation of actinides using Al cathodes in LiCl-KCl, in: ATLANTE 2004, Nimes, France, June 21-25 (2004)
- Gay EC, Miller WE, Laidler JJ, Method for removal of heavy metal from molten salt in IFR fuel pyroprocessing, Report ANL/CMT/CP-78479, Argonne, IL, USA (1994)
- Kinoshita K, Inoue T, Fusselman SP, Grimmett DL, Krueger CL, Storvick TS, J. Nucl. Sci. Technol., 40, 524 (2003)
- Kwon SW, Shim JB, Kim EH, Ahn HG, J. Ind. Eng. Chem., 12(5), 802 (2006)
- Gay EC, Method of Removal of Heavy Metal from Molten Salt, United States patent 5,454,914 (1995)
- Kurata M, Sakamura Y, Hijikara T, Kinoshita K, Inoue T, CRIEPI Report ET96001, Central Research Institute of Electric Power Industry, Tokyo, Japan (1997)
- Choi JH, Gwon SJ, Shon JY, Jung CH, Ihm YE, Lim YM, Nho YC, J. Ind. Eng. Chem., 14(1), 116 (2008)
- Burris L, Steunenberg RK, Miller WE, The application of electrorefining for recovery and purification of fuel discharged from IFR, Report CONF-861146-14, Argonne National Laboratory, USA (1986)
- Bard AJ, Faulkner LR, Electrochemical Methods, John Wiley & Sons, Inc., New York (1980)
- Kim KW, Lee EH, Kim JS, Shin KH, Kim KH, Electrochim. Acta, 46(6), 915 (2001)
- Kupovich FV, Virnik AM, Eberil VI, Russ. J. Electrochem., 37, 907 (2001)