Solvent Extraction Separation of Nd and Pr from Chloride Solution using PC88A and D2EHPA

Abstract

An extraction study ofneodymium (Nd) was investigated with dift、erent individual and mixer ofextractants such as PC88A, D2EHPA, Cyanex 272, Versatic acid 10 and D2EHPA十Alamine-304-1, D2EHPA+Alamine-308, D2EHPA+TBP, D2EHPA+TOPO, PCSSA+Alaniine-336 and PC88A+TBP respectively. In all cases, it was observed that the extraction percentage ofNd increased with increasing equilibrium pH and extractant concentration but rather opposite observation was found that the extraction percentage of Nd decreased with increasing TBP concentration along with D2EHPA. Adding TBP to PC88A had no favorable effect on the extraction ofNd, whereas use ofa mixture ofPC88A with Alamine336, increased the extraction percentage of Nd under the same condition. Based on our experimental studies令this paper reports the results on the basic approach and extraction of neodymium.