EXTRACTION OF URANIUM(VI) THROUGH REVERSED MICELLE BY PRIMARY AMINE N-1923

A study on extraction of uranium (VI) from sulfuric acid media by the primary amine N-1923 in chloroform is described. Extraction coefficien ts of uranium(VI) as a function of aqueous H2SO4 concentration, extrac tant concentration and temperature have been studied. From the data, t he compositions of extracted species, equilibrium constants and enthal pies of extraction reaction have been evaluated. A new extraction mech anism of amine has been suggested, that is the formation of reversed m icelle as a result of the aggregation of ammonium salt in the organic phase of the extraction. This assumption may be used for interpreting extraction data satisfactorily, which can not be explained by the slop e analysis method.