Document Type

Conference Proceeding

Publication Date


Journal / Book Title

ISEC '05 Beijing


A simple and selective method for the liquid - liquid extraction of yttrium with Cyanex272 is presented. The influence of the pH of aqueous phase, concentration of extractant, nature of diluent, extraction time, type of stripping agent and stripping time were evaluated to optimize the conditions for quantitative extraction of yttrium. The effect of certain foreign ions on the extraction of yttrium was studied. Yttrium was quantitatively extracted at pH = 7.0 with 5 x 10-4 M Cyanex272 in xylene. It was stripped from the organic phase with 4M nitric acid and determined spectrophotometrically with Arsenazo (Ill) at 650nm.

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