Synthesis and Extraction Properties of 2-propanol

A method for the synthesis of 2-(3,4-diphenylphosphinylpyrrolidin-1-yl)ethanol and 3-(3,4-diphenylphosphinylpyrrolidin-1-yl)propanol was developed, and extraction of U(VI), Th(IV), and lanthanides(III) from nitric acid solutions was studied. The stoichiometry of the extracted complexes was determined, and the influence of the extractant structure and the HNO.sub.3concentration in the aqueous phase on the efficiency of extraction of the metal ions into the organic phase was evaluated. It was found that 2-(3,4-diphenylphosphinylpyrrolidin-1-yl)ethanol exhibits high extraction ability with respect to actinides and lanthanides in nitrate media.