THE EFFECT OF RAW AND SULFONATED KEROSENE-TYPE DILUENT ON THE SOLVENT-EXTRACTION OF URANIUM AND COEXTRACTABLE IMPURITIES FROM SOLUTIONS .1. URANYL-NITRATE SOLUTION

Uranium has been extracted from an uranyl nitrate solution, using both raw and sulfonated kerosene as diluent. The spectra of crude and sulfonated kerosene show that sulfonation preferentially eliminates non-saturated compounds and non-saturated with aromatic rings. The nature of the diluent influences appreciably the whole extraction system: the phase disengaging time was reduced two fold, the quantity of uranium extracted was greater and that of co-extractable elements reduced when sulfonated kerosene was used. © 1990.