Microwave-assisted dissolution of UO2 with TBP-HNO3 complex

Yunfeng Zhao; Jing Chen

Korean Journal of Chemical Engineering, Vol.26, No.1, 165-167, January, 2009

DOI10.1007/s11814-009-0027-8 Export Citation

Microwave-assisted dissolution of UO2 with TBP-HNO3 complex

Yunfeng Zhao, and Jing Chen^†

Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 102201, China

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The direct dissolution of UO2 in TBP-HNO3 complex by microwave heating in this study suggests the possibility of dissolving spent nuclear fuels. This new technique offers many benefits for reduction in aqueous and organic waste generation and improved efficiency of chemical processing. The dissolution rate of UO2 particles with TBP-HNO3 complex by microwave assisted heating is highly dependent on the temperature and the particle size.

Keywords:Uranium Dioxide;Dissolution;Microwave Heating;Tri-n-butylphosphate

[References]

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[2] Ikeda Y, Yasuike Y, Nishimura K, Hasegawa S, Takashima Y, J. Nucl. Mater., 224, 266 (1995)

[3] Trofimov TI, Samsonov MD, YM, et al., C. R. Chimie., 7, 1209 (2004)

[4] Al-Harahsheh M, Kingman SW, Hydrometallurgy, 73, 189 (2004)

[5] Huang JH, Rowson NA, Hydrometallurgy, 64, 169 (2002)

[6] Samsonov MD, Wai CM, Lee SC, et al., Chem. Commun., 1868 (2001)

[7] Yaping T, Zhichang X, Fuhong Z, et al., Journal of Tsinghua University (Sci&Tech), 37, 61 (1997)

[8] Yifei G, Junfu L, Rongzhou J, Xiuqi L, Atomic Energy Science and Technology, 34, 252 (2000)

[9] Hass PA, Am. Ceram. Soc. Bull., 58, 873 (1979)