N,N,N’,N’-四丁基丁二酰胺萃取Tb(Ⅲ)的研究  

Study on the Extraction of Terbium(Ⅲ) by Novel Extractant N,N,N',N'-tetrabutsuccinylamide

作　　者：田晓强[1] 冀克俭[1] 袁美龙[2] 孙国新[2] 

机构地区：[1]中国兵器工业集团第五三研究所,山东济南250031 [2]济南大学化学化工学院,山东济南250022

出　　处：《化学研究与应用》2005年第6期822-824,共3页Chemical Research and Application

基　　金：国家自然科学基金(20301008)资助项目;山东省中青年学术骨干基金(Q031301)资助项目

摘　　要：The N,N,N’,N’-tetrabutsuccinylamide（TBSA） was synthesized and purified.The extractability of this diamide for Terbium（Ⅲ） has been studied.The effects of concentrations of nitric acid,extractant,and LiNO3 as well as the temperature influence on the extraction distribution ratios were investgated in detail.The apparent equilibrium constant of extraction has been determined to be（0.77±0.02）L6/mol6at 298K.The enthalpy of the extraction was -25.64kJ·mol-1.The composition of the extracted species was found to be Tb（NO3）3·3TBSA,which was characterized by IR spectromery.The N, N, N＇, N＇ - tetrabutsuccinylamide （TBSA） was synthesized and purified. The extractability of this diamide for Terbium（ Ⅲ） has been studied. The effects of concentrations of nitric acid,extractant,and LiNO3 as well as the temperature influ- ence on the extraction distribution ratios were investgated in detail. The apparent equilibrium constant of extraction has been deter- mined to be（0. 77 ± 0. 02 ） L^6/mol^6 at 298K. The enthalpy of the extraction was - 25.64kJ · mol^-1. The composition of the extracted species was found to be Th（ NO3 ）3 · 3TBSA,which was characterized by IR spectromery.

关 键 词：N N N' N'-四丁基丁二酰胺 溶剂萃取 Tb(Ⅲ) 

分 类 号：O642.42[理学—物理化学]