A low viscosity, hydrophobic eutectic solvent based on trioctylphosphine oxide (TOPO) has been developed and characterized, and its use as an extractant demonstrated for liquid-liquid separation of uranyl nitrate from aqueous acid. This strategy of liquefying the active extracting agent as a eutectic liquid produced liquids that contain an intrinsically high concentration of TOPO (ca. 80 wt %, 1.875 mol L-1 at chi(TOPO) = 0.50) and renders the use of an organic (hydrocarbon) diluent redundant.
机构:
Vilnius Univ, Fac Chem & Geosci, Naugarduko 24, LT-03225 Vilnius, LithuaniaVilnius Univ, Fac Chem & Geosci, Naugarduko 24, LT-03225 Vilnius, Lithuania
Kavaliauskas, Vytautas
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Olsauskaite, Vilma
Padarauskas, Audrius
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Vilnius Univ, Fac Chem & Geosci, Naugarduko 24, LT-03225 Vilnius, LithuaniaVilnius Univ, Fac Chem & Geosci, Naugarduko 24, LT-03225 Vilnius, Lithuania