冠醚萃取模拟高放废液中Sr~(2+)、Cs~+的研究

摘要: 用同位素示踪法研究了冠醚对模拟高放废液中Ｓｒ~（２＋）、Ｃｓ~＋的提取。０．０１ｍｏｌ／ｌ二环己基－１８－冠－６在ＣＨＣｌ_２ＣＨＣｌ_２和ＣＨＣｌ_３中对Ｓｒ~（２＋）的一次萃取率在９０％以上。二苯并－２１－冠－７－磷钼酸－硝基苯体系对Ｃｓ~＋的萃取效果较好。

Abstract: ^EXTRACTION OF Sr~(2+)Cs~+ IN SIMULATED HLLW WITH CROWN ETHERSYang Qun;Han Yande;Liu Daming(China institute of Atomic Energy,P.O.Box 275(88),Beijing 102413)Abstract:The extraction of Sr~(2+)and Cs~+ in simulated high level radioactive liquid waste with crown ethers is studied by the radioisotopiac trace,The first extraction rate of Sr~(2+)with 0.01mol/l dicyclohexyl-18-crown-6 in 1,1,2,2-tetrachloroethane and trichlo romethane is more than 90％.The results show that Cs~+ can be extracted effectively by dibenzo-21-crown-7-H_3PMo_(12)O_(40)(3/1)in nitrobenzene.Keywords:Stronium Cesium Crown ether HLLW Extraction