P204-P350萃取体系萃取稀土铈的研究

Study on Extraction of Rare Earth Cerium with P204 -P350 Extraction System

用P204和P350组成的二元协同萃取体系萃取氯化铈稀土料液,研究萃取体系的震荡时间、相比及稀土离子浓度对萃取率的影响,结果表明,当P204与P350体系的振荡时间9min、相比1∶1、稀土离子浓度为0.1mol/L时,协同萃取体系具有最佳萃取效果,此时萃取率为71%;红外表征中萃取相出现的特征峰,可定性说明萃取反应的发生。

Cerium chloride rare earth solution was extraced by binary synergistic extraction system composed of P204 and P350.The effects of oscillation time, phase ratio and rare earth ion concentration on extraction rate were studied.The results show that when the P204 and P350 system oscillation time was 9 min, the ratio was 1∶1,rare earth ion concentration was 0.1 mol/L,the synergistic extraction system had the best effect of extraction, the extraction rate was 71%.The characteristic peak of extraction phase in infrared characterization can qualitatively indicate the occurrence of extraction reaction.