P204-TBP体系协同萃取稀土铈的实验研究

Experimental study on the synergistic extraction of rare earth cerium with P204-TBP

本文用P204和TBP组成的协同萃取体系萃取氯化铈的混合稀土料液,主要研究目标是如何从氯化铈稀土溶液中高效率萃取分离稀土元素,更好减少对环境的污染,得到更为纯净的稀土元素,研制了新的协同萃取体系,是一项成熟的绿色环保工艺即P204-TBP体系,可直接用于稀土的萃取,回收稀土元素,实现循环利用。本实验的有机相为P204和TBP的混合试剂,水相为氯化铈溶液,通过观察萃取体系中P204的用量、振荡时间、相比以及稀土铈的浓度等因素对萃取铈的影响,得到P204和TBP所占比的具体分析数值。

This article with P204 and synergistic extraction system composed of the TBP extracting cerium chloride mixed rare earth material liquid,the main research goal is to how to efficient extraction separation of rare earth elements in rare earth of cerium chloride solution,reduce pollution to the environment better,get more pure rare earth elements,developed a new synergistic extraction system,is a mature technology of green environmental protection,P204-the TBP system can be applied directly to the rare earth extraction,recovery of rare earth elements,can realize recycling.In this experiment,the organic phase is the mixture of P204 and TBP,and the aqueous phase is the cerium chloride solution.By observing the influence of the distribution ratio of P204 in the extraction system,the oscillation time,the comparison and the concentration of rare earth cerium on the extraction of cerium,the specific analysis value of the proportion of P204 and TBP is obtained.