Образование фосфатов РЗЭ в хлоридных расплавах в виде наноразмерных порошков

Abstract

One of the methods for removing rare earth elements (REEs) from the salt electrolyte is precipitating them as solid phosphates. Chemical and phase composition of the phosphates depends on the cationic composition of the solvent melt. Designing a reliable method for removing phosphates from the melt requires information on their properties including particle size. In the present work formation of REE (La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb) phosphates in NaCl-2CsCl based melts was studied at 650 oC and PO4 3–:REE mole ratios corresponding to 50 and 100 of stoichiometry.