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Quantitative extraction of uranium(VI) in aqueous solutions with n-alkylamine intercalates of γ-titanium phosphate

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Abstract

The intercalation compounds Ti(C3H7NH2)(HPO4)2·H2O (18.4 Å) (γ-TiP/n-Pr) and Ti(C4H9NH2)(HPO4)2·H2O (20.5 Å) (γ-TiP/n-Bu) have been prepared using γ-titanium phosphate, Ti(HPO4)2·2H2O (11.6 Å), as precursor. The retention of UO 2+2 , in aqueous solutions by γ-TiP is very low being only a superficial adsorption phenomenon. When the intercalated materials are used, the retention is quantitative until 95% of the cation exchange capacity in the γ-TiP/n-Pr case (c.e.c.=6.30 mequiv./g), and over 80% for the γ-TiP/n-Bu compound (c.e.c.=6.04 mequiv./g).

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  1. Area de Química Inorgánica, Facultad de Química, Universidad de Oviedo, Oviedo, (Spain)

    C. Trobajo, M. Suárez & J. Rodriguez

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  1. C. Trobajo
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  2. M. Suárez
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  3. J. Rodriguez
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Trobajo, C., Suárez, M. & Rodriguez, J. Quantitative extraction of uranium(VI) in aqueous solutions with n-alkylamine intercalates of γ-titanium phosphate. Journal of Radioanalytical and Nuclear Chemistry, Articles 149, 67–72 (1991). https://doi.org/10.1007/BF02053714

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