1-苯基-3-甲基-4-苯甲酰基吡唑酮-5与二安替比林甲烷对稀土的协同萃取研究  

Studies on Synergistic Extraction of 1-phenyl-3-methy-4-benzoyl-pyrazolone-5 and Diantipyrylmethane with Rare Earths

作　　者：齐玉兰[1] 李小静[1] 于爱玲 杨汝栋[1] 

机构地区：[1]兰州大学化学系,兰州730000

出　　处：《兰州大学学报（自然科学版）》1992年第2期122-127,共6页Journal of Lanzhou University(Natural Sciences)

摘　　要：本文研究了1-苯基-3-甲基-4-苯甲酰基吡唑酮-5(PMBP)与二安替比林甲烷(DAPM)的二氯乙烷溶液在硝酸介质中对 Y^(3+)的协同萃取作用.实验证明,在Y^(3+)(～10^(-4)M)/HNO_3、NaNO_3(μ=0.1)/PMBP—DAPM—C_2H_4Cl_2体系中有明显的正协同萃取效应,同时测得萃合物的组成为 YA_3·B,在25℃时的萃取平衡常数为1.84,讨论了萃合物的结构,协同萃取机理及其它稀土离子的1gK、PH(1/2)与原子序数的关系.In this paper,we have studied the action of synergistic extraction of1,2—dichloroethane solution of 1-phenyl-3-methyl-4-benzoyl-pyrazolone-5 and diantipyrylmethane with rare earths in nitric acid medium.It wasfound there was obvious position synergistic extraction effect.Thecomposition of complex was proved to be YA_3B(A=1-pheny1-3-methyl-4-benzoyl-pyrazolone-5,B=diantipyrylmethane).When the temperatureis 25℃ the extraction equilibrium constant K is 1.84.the structure ofthe complex and the correlation between atomic number with lgK andpH_(1/2)were also studied.

关 键 词：协同萃取 镧系元素 PMBP DAPM 

分 类 号：O614.33[理学—无机化学]