Abstract
The extraction behavior of uranium, thorium and lanthanides, represented by cerium and ytterbium, by Cyanex-923 has been investigated. The effect of different variables like the concentration of acids, metal ion and extractant, nature of diluent and temperature has been studied. A composition for the extracted U(VI) and Th(IV) species has been proposed. Based on the partition data some important binary and ternary separations involving the aforesaid metal ions have been achieved. The proposed procedure has been applied for the recovery of uranium, thorium and lanthanide fraction from monazite sand. The stability and regeneration capacity of the extractant have been evaluated.
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References
K. B. BROWN, C. F. COLEMAN, D. J. CROUSE, J. O. DENIS, J. G. MOORE, USAEC Report ORNL-1734, 1954.
D. J. CROUSE, J. O. DENIS, USAEC Report ORNL-1859, 1955.
L. SHERRINGTON, Commercial Processes for Rare Earths and Thorium, in: Handbook of Solvent Extraction, T. C. LO, M. H. I. BAIRD, C. HANSON (Eds), Wiley Interscience, New York, 1983, p. 719.
A. BANDYOPADHYAY, U. S. ROY, J. Indian Chem. Soc., 75 (1998) No. 7, 413.
J. N. MATHUR, G. R. CHOPPIN, Solvent Extr. Ion Exch., 16 (1998) 459.
Y. S. FEDOROV, B. Y. ZILBERMAN, S. M. KULIKOV, I. V. BLAZHEVA, E. N. MISCHIN, A. L. WALLWORK, I. S. DENNISS, I. MAY, N. J. HILL, Solvent Extr. Ion Exch., 17 (1999) 243.
H. RAMEBAECK, M. SKALBERG, J. Radioanal. Nucl. Chem., 235 (1998) 229.
R. SHABANA, H. RUF, J. Radioanal. Chem., 36 (1977) 387.
Y. H. YANG, S. X. SUN, S. Y. XUE, Y. Z. YANG, B. R. BAO, J. Radioanal. Nucl. Chem., 237 (1998) 171.
J. N. MATHUR, G. R. CHOPPIN, Solvent Extr. Ion Exch., 16 (1998) 739.
F. J. HURST, D. J. CROUSE, K. B. BROWN, Oak Ridge National Laboratory, Report No. ORNL-TM-2522, 1969.
M. L. P. REDDY, R. L. VARMA, T. R. RAMAMOHAN, S. K. SAHU, V. CHAKRAVORTTY, Solvent Extr. Ion Exch., 16 (1998) 795.
C. DEQUIANG, M. GENXIANG, L. DEQIAN, Fenxi Huaxue, 26 (1998) No. 11, 1346.
L. JUN, L. DEQIAN, W. ZHENGGUI, J. ZUCHENG, Acta Metallurgica Sinica, 12 (1999) No. 2, 191.
L. JUN, W. ZHENGGUI, L. DEQIAN, M. GENGXIANG, J. ZUCHENG, Hydrometallurgy, 50 (1998) 77.
L. MEITES, Handbook of Analytical Chemistry, McGraw Hill Book Company, Inc., New York, 1963, p. 3.
H. J. FORSTER, D. RHEDE, Extreme Compositional Variability in Granitic Monazites, in: 3rd Hutton Symp. on the Origin of Granites and Related Rocks, M. BROWN and P. M. PICCOLI (Eds), College Park, M.D. US Geological Survey Circular, 1129 (1995) 54.
M. D. N. WADIA, Rare Earth Minerals, in: Minerals of India, D. N. WADIA (Ed.), National Book Trust, India, 1966, p. 168.
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Gupta, B., Malik, P. & Deep, A. Extraction of uranium, thorium and lanthanides using Cyanex-923: Their separations and recovery from monazite. Journal of Radioanalytical and Nuclear Chemistry 251, 451–456 (2002). https://doi.org/10.1023/A:1014890427073
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DOI: https://doi.org/10.1023/A:1014890427073