Development of Oxalalte Precipitation Precess for the Partitioning of Long-lived Nuclides from the High Level Liquid Waste

Eung-Ho Kim; Sang-Woon Kwon; Dong-Yong Chung; Jae-kyung Yoo; Cheong-Song Choi

Journal of Industrial and Engineering Chemistry, Vol.6, No.1, 37-46, January, 2000

Eung-Ho Kim^†, Sang-Woon Kwon, Dong-Yong Chung, Jae-kyung Yoo, and Cheong-Song Choi¹

Korea Atomic Energy Research Institute, ejon 305-353, Korea
¹Department of Chemical Engineering, Sogang University, Seoul 121-742, Korea

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A new oxalate precipitation process was developed for separating the long-lived nuclides from high level liquid waste (HLLW). The process of oxalate precipitation, the dissolution of oxalate precipitate and the destruction of oxalate ion in the filtrate. The oxalate precipitation was carried out by the addition of oxalic acid to a simulated solution at room temperature. A precipitation condition was first designed by an inactive test followed by Am precipitation. The resulting oxalate slurry was filtered to obtain the oxalate precipitate and the filtrate. The oxalate precipitate was then dissolved by nitric acid at 90 ℃ and the the resulting solution was treated with H₂O₂. The optimum conditions for the complete partitioning of Nd and Am in an oxalate form from the simulated solution were 0.5 M of nitric acid and 0.5 M of oxalic acid. H₂O₂ was not appropriate for the destruction of oxalate ion in the filtrate because hydrogen peroxide was explosively decomposed by transition elements such as Ru and Fe in the filtrate. The problem has been solved by the semi-batch feeding of H₂O₂ into the filtrate.

Keywords:oxalate precipitation process;the high level liquid waste;H₂O₂;partitioning of long lived muclides

[References]

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Forsberg CW, Nucl. Technol., 49, 243 (1981)
Kobayashi T, Shirahashi K, Kubota M, Report JAERI-M89-168, Japan Atomic Energy Research Institute, Tokai-mura, Japan (1989)
Posey JC, Report ORNL-5687, Oak Ridge National Laboratory, Oak Ridge, U.S.A. (1980)
Rankin DT, Burney GA, Smith PK, Sission RD, Ceram. Bull., 56, 478 (1977)
Kim EH, Shin YJ, Kim WH, Chung DY, Kim SS, Yoo JH, Choi CS, Korean J. Chem. Eng., 12(5), 557 (1995)
Kim EH, Chung DY, Kim WH, Shin YJ, Lee EH, Yoo JH, Choi CS, J. Nucl. Sci. Technol., 34, 283 (1997)
Shirahashi K, Kubota M, J. Nucl. Sci. Technol., 29, 559 (1992)
Akai Y, Fujita R, J. Nucl. Sci. Technol., 32, 1064 (1995)
Kubota M, Fukase T, J. Nucl. Sci. Technol., 17, 783 (1980)
Kondo Y, Matsumura M, Kubota M, J. Radioanal. Nucl. Ch. Ar., 177, 311 (1994)
Lee EH, Hwang DS, Kim KW, Shin YJ, Yoo JH, J. Korean Ind. Eng. Chem., 6(3), 404 (1995)
Chung DY, Kim EH, Shin YJ, Yoo JH, Kim JD, J. Radioanal. Nucl. Ch. Ar., 204, 265 (1996)
ORNL, Report ORNL-4451, Oak Ridge National Laboratory, Oak Ridge, U.S.A. (1970)
Kolthoff IM, Sandell EB, Meehan EJ, Bruckenstein S, Quantitative Chemical Analysis, 825, 4th ed., the Macmillan Company, London (1971)
Burney GA, Porter JA, Inorg. Nucl. Chem. Lett., 3, 79 (1967)
Tedder DW, Blomeke JO, Report ORNL/TM-6056, Oak Ridge National Laboratory, Oak Ridge, U.S.A. (1977)
Mailen SC, Tallent OK, Arweed PC, Report ORNL/TM-7474, Oak Ridge National Laboratory, Oak Ridge, U.S.A. (1980)
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Yoo JH, Report KAERI/RR-1322, Korea Atomic Energy Research Institute, Taejon, Korea (1994)
Kirk RE, Othmer DF, Encyclopedia of Chemical Technology, 3rd ed. Vols. 13, Wiley, New York (1980)
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[Referenced By]

[Related Articles]

[1] IAEA, Technical Report No. 214, International Atomic Energy Agency, Vienna, Austria (1982)

[2] Forsberg CW, Nucl. Technol., 49, 243 (1981)

[3] Kobayashi T, Shirahashi K, Kubota M, Report JAERI-M89-168, Japan Atomic Energy Research Institute, Tokai-mura, Japan (1989)

[4] Posey JC, Report ORNL-5687, Oak Ridge National Laboratory, Oak Ridge, U.S.A. (1980)

[5] Rankin DT, Burney GA, Smith PK, Sission RD, Ceram. Bull., 56, 478 (1977)

[6] Kim EH, Shin YJ, Kim WH, Chung DY, Kim SS, Yoo JH, Choi CS, Korean J. Chem. Eng., 12(5), 557 (1995)

[7] Kim EH, Chung DY, Kim WH, Shin YJ, Lee EH, Yoo JH, Choi CS, J. Nucl. Sci. Technol., 34, 283 (1997)

[8] Shirahashi K, Kubota M, J. Nucl. Sci. Technol., 29, 559 (1992)

[9] Akai Y, Fujita R, J. Nucl. Sci. Technol., 32, 1064 (1995)

[10] Kubota M, Fukase T, J. Nucl. Sci. Technol., 17, 783 (1980)

[11] Kondo Y, Matsumura M, Kubota M, J. Radioanal. Nucl. Ch. Ar., 177, 311 (1994)

[12] Lee EH, Hwang DS, Kim KW, Shin YJ, Yoo JH, J. Korean Ind. Eng. Chem., 6(3), 404 (1995)

[13] Chung DY, Kim EH, Shin YJ, Yoo JH, Kim JD, J. Radioanal. Nucl. Ch. Ar., 204, 265 (1996)

[14] ORNL, Report ORNL-4451, Oak Ridge National Laboratory, Oak Ridge, U.S.A. (1970)

[15] Kolthoff IM, Sandell EB, Meehan EJ, Bruckenstein S, Quantitative Chemical Analysis, 825, 4th ed., the Macmillan Company, London (1971)

[16] Burney GA, Porter JA, Inorg. Nucl. Chem. Lett., 3, 79 (1967)

[17] Tedder DW, Blomeke JO, Report ORNL/TM-6056, Oak Ridge National Laboratory, Oak Ridge, U.S.A. (1977)

[18] Mailen SC, Tallent OK, Arweed PC, Report ORNL/TM-7474, Oak Ridge National Laboratory, Oak Ridge, U.S.A. (1980)

[19] Chung DY, Kim EH, Shin YJ, Yoo JH, Choi CS, Kim JD, J. Radioanal. Nucl. Ch. Lett., 201, 495 (1995)

[20] Yoo JH, Report KAERI/RR-1322, Korea Atomic Energy Research Institute, Taejon, Korea (1994)

[21] Kirk RE, Othmer DF, Encyclopedia of Chemical Technology, 3rd ed. Vols. 13, Wiley, New York (1980)

[22] Kim EH, Kim YH, Chung DY, Shin YJ, Yoo JH, Choi CS, HWAHAK KONGHAK, 34(2), 249 (1996)

[23] Tiwary JN, Bhagat S, J. Indian Chem. Soc., 62, 438 (1985)

[24] Kohler JT, Altomare RE, Kittrell JR, Ind. Eng. Chem. Prod. Res. Dev., 14, 36 (1975)

[25] Lin CC, Smith FR, Ichikawa N, BabaT, Itow M, Int. J. Chem. Kinet., 23, 971 (1991)

[26] Weiss J, The Free Radical Mechanism in the Reactions of Hydrogen Peroxide in Advances in Catalysis, Academic Press, New York, Vol. 4, p. 343 (1952)

[27] Lunak S, Sedlak P, J. Photochem. Photobiol. A-Chem., 68, 1 (1992)

[28] Haber F, Weiss J, Proc. Roy. Soc. A, 147, 332 (1934)

[29] Bishop DF, Stern G, Fleischman M, Marshall LS, Ind. Eng. Chem. Process Des. Dev., 7, 110 (1968)

[30] Luo Y, Kustin K, Epstein IR, Inorg. Chem., 27, 2489 (1988)

[31] Shanahan KL, Report SAND 78-1778, Sandia National Laboratories, Albuquerque, U.S.A. (1979)

[32] Babko AK, Dubovenko LI, J. Gen. Chem., 26, 1133 (1956)