P. Behera et al., ORGANOPHOSPHINIC, PHOSPHONIC-ACIDS AND THEIR BINARY-MIXTURES AS EXTRACTANTS FOR MOLYBDENUM(VI) AND URANIUM(VI) FROM AQUEOUS HCL MEDIA, Journal of radioanalytical and nuclear chemistry, 178(1), 1994, pp. 179-192
Extraction studies of uranium(VI) and molybdenum(VI) with organophosph
oric, phosphinic acid and its thiosubstituted derivatives have been ca
rried out from 0.1-1.0M HCl solutions. The extracted species are propo
sed to be UO2R2 and MoO2CIR on the basis of slope analysis for uranium
(VI) and molybdenum(VI), respectively. The extraction efficiencies of
PC-88A, Cyanex 272, Cyanex 301 and Cyanex 302 in the extraction of mol
ybdenum(VI) and uranium(VI) are compared. Synergistic effects have bee
n studied with binary mixtures of extractants. Separation of molybdenu
m(VI) from uranium(VI) is feasible by Cyanex 301 from IM HCl, the sepa
ration factor log beta being 2.3.