Lanthanum and actinium extraction by mixture of trialkylmethylammonium nitrate and tributyl phosphate

Distribution of lanthanum (140La) and actinium (227Ac) microamounts during their extraction'' with nitrate salt of trialkylmethylammonium, tributylpbosphate and mixture of the extractants from 3 mol solution of ammonium nitrate at pH-1.5-2.0 is studied. It is established that lanthanum extraction with the mixture of reagents is accompanied by a weak synergistic effect; for actinium antagonistic effect is detected. Coefficients of lanthanum and actinium separation under the conditions are calculated