摘要
研究了在实验温度为２５℃，水相为硝酸介质，离子强度为０．１ｍｏｌ／ｋｇ，氯仿为稀释剂时，５，７－二溴－８－羟基喹啉单独萃取及其与２，２′－联吡啶、２，９－二甲基－１，１０－啡绕啉、４，７－二苯基－１，１０－啡绕啉对三价镅和铕的协同萃取。结果表明：５，７－二溴－８－二羟基喹啉对镅的萃取能力略高于铕，分离因数βＡｍ／Ｅｕ为１．２９；３种协萃剂的协萃能力依次为：４，７－二苯基－１，１０－啡绕啉＞２，２′－联吡啶＞２，９－二甲基－１，１０－啡绕啉，相应的分离因数βＡｍ／Ｅｕ分别为：１０．８０、１．６２和０．４９。
The extraction behaviors of Am 3+ and Eu 3+ from nitrate medium with 5,7 dibromo 8 quinolinol in chloroform at 25℃ are studied.The synergetic effects of 5,7 dibromo 8 quinolinol with 2,2 ′ bipyridine,2,9 dimethyl 1,10 phenanthroline and 4,7 diphenanthroline are also studied. The results show that in single extracting system of 5,7 dibromo 8 quinolinol the separation factor for Am and Eu is 1 29;in the synergetic systems of 5,7 dibromo 8 quinolinol with 2,2 ′ bipyridine,5,7 dibromo 8 quinolinol with 2,9 dimethyl 1,10 phenanthroline and 5,7 dibromo 8 quinolinol with 4,7 diphenanthroline,the separation factors are 1 62、0 49 and 10 8,respectively.
出处
《核化学与放射化学》
EI
CAS
CSCD
北大核心
1997年第3期12-17,共6页
Journal of Nuclear and Radiochemistry
关键词
镅
铕
羟基喹啉
萃取
二溴
HA
Americium Europium 5,7 Dibromo 8 quinolinol Extraction
