Ionic Liquids: How Far Do they Extend the Potential of Solvent Extraction of f-Elements?

  • Kolarik Z
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Abstract

A review. Applicability of room temp. liqs. (RTILs) as diluents in the solvent extn. of f-elements is reviewed. Characteristics of selected RTILs, important for such an application, are gathered. Properties tabulated are the melting and f.ps., d., mutual soly. with water, viscosity, surface tension, specific cond., and radiation stability. Properties such as environmental compatibility, toxicity, chem. and thermal stability, biodegradability, and chem. degradability imply that RTILs are not harmless to the environment or to work safety. The extn. efficiency and mechanism in systems involving RTILs is described, discussed, and compared with systems involving mol. diluents. Particularly assessed is the extn. of nitric acid by RTILs alone and TBP, the extn. of U(VI), Ce(IV), Pu(IV), Am(III), and lanthanides(III) by RTILs alone, the extn. of U(VI), Ce(IV), actinides(III,IV), and lanthanides(III) by solvating O-donors, the extn. of Eu(III) by a solvating N-donor, the extn. of lanthanides(III) and Am(III) by acidic extractants, and the extn. of actinides(III,IV) and lanthanides(III) by task specific ionic liqs. [on SciFinder(R)]

Author-supplied keywords

  • Ionic liquids
  • actinides
  • advantages of
  • disadvantages of
  • extraction mechanism
  • lanthanides

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Authors

  • Z. Kolarik

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