Data for: Study of the separation of didymium from lanthanum using liquidliquid extraction: comparison between saponification of the extractant and use of lactic acid

The Research data contain results of solvent extraction experiments of the rare earth elements lanthanum, praseodymium and neodymium. Deferents extraction conditions were tested, such as extractants, initial liquor pH, saponification degree of the extractants and the acid lactic concentration in the initial liquor. Th extraction of the metals in each condition and the Pr/La separation factor is informed in this file.