Extraction and Separation of Rare Earths from Nitrate Medium by Mixtures of p-Phosphorylated Calixarene and 1-Phenyl-3-methyl-4-benzoyl-pyrazalone-5  

作　　者：Youcai Lu Yanling Li Yanfeng Bi Wuping Liao 

机构地区：[1]State Key Laboratory of Rare Earth Resource Utilization,ERC for the Separation and Purification of REs and Thorium,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun,Jilin 130022,China [2]University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Chinese Journal of Chemistry》2014年第10期1077-1082,共6页中国化学（英文版）

基　　金：This work was supported by 973 Program(No.2012CBA01206);the National Natural Science Foundation of China(Nos.21221061,21301170 and 51222404).

摘　　要：The gadolinium extraction by the mixtures of p-phosphorylated calixarene and 1-phenyl-3-methyl-4-benzoylpyrazalone-5 from nitrate medium was studied,which indicated an obvious synergistic effect between these two extractants.The extractants exhibit no interaction with each other before the metal extraction.Gadolinium(Ⅲ)was extracted by the species of Ln(PMBP)_(2)L_(2)(NO_(3))instead of Ln(PMBP)_(3)•(HPMBP)or Ln(NO_(3))_(3)•2L which are extracted by HPMBP or L alone.Thermodynamic functions(ΔG,ΔH,ΔS)were calculated.The extraction of other rare earths was also investigated and compared.Possible single rare earth separation was discussed.

关 键 词：synergistic extraction 1-phenyl-3-methyl-4-benzoyl-2-pyrazolin-5-one p-phosphorylated calixarene rare earths 

分 类 号：O65[理学—分析化学]