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Extraction of certain actinide and lanthanide elements from different acidic media by polyurethane foams loaded with di-(2-ethylhexyl)phosphoric acid (HDEHP)

II. Extraction of cerium(III) from acidic chloride solutions by foams loaded with HDEHP in nitrobenzene

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Abstract

The extraction of cerium(III) from weakly acidic chloride solutions by HDEHP-nitrobenzene-loaded polyurethane foams could be analyzed quantitatively in terms of the equation: log(9.056 Dc)=log Kc+2.14 log (Cd−6Cc)+3 pH+log fc where Dc is the distribution ratio of cerium(III) between the foam and aqueous phases, Cd and Cc are the total HDEHP and Ce(III) concentrations on the foam, respectively, log fc=[Ce3+](sq)/[ΣCe(III)](aq), and Kc is the equilibrium constant of the equation: Ce 3+(aq) +2.14(HX)2.8(o) ⇌ ⇌ CeX6·H3(o)+3H +(aq) . Values of Kc under the different extraction conditions tested are given.

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References

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Authors and Affiliations

  1. Nuclear Chemistry and Radiation Protection Departments, Nuclear Research Centre, Atomic Energy Establishment, Atomic Energy Post 13959, Cairo, (Egypt)

    K. Shakir, M. Aziz & Sh. G. Beheir

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  1. K. Shakir
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  2. M. Aziz
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  3. Sh. G. Beheir
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Shakir, K., Aziz, M. & Beheir, S.G. Extraction of certain actinide and lanthanide elements from different acidic media by polyurethane foams loaded with di-(2-ethylhexyl)phosphoric acid (HDEHP). Journal of Radioanalytical and Nuclear Chemistry, Articles 147, 309–319 (1991). https://doi.org/10.1007/BF02040379

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  • DOI: https://doi.org/10.1007/BF02040379

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