摘要
研究了异丙氧基杯 [4]冠 6(简称iPr C[4]C6) /正辛醇的萃取性能 ,主要考察了酸度、模拟高放废液对萃取铯离子以及主要锕系元素和锝的影响 ,初步研究了辐照剂量对iPr C[4]C6/正辛醇萃取铯离子的影响。研究表明 :水相中无模拟料液时 ,酸度对iPr C[4]C6萃取铯离子的影响较大 ;除钾离子外 ,其它共存离子对萃取铯离子的影响较小 ;有模拟料液存在情况下 ,酸度的影响较小 ,而稀释倍数影响较大 ;辐照剂量小于 1 0 5Gy时 ,体系对铯离子萃取无明显影响。在硝酸溶液中 ,萃取体系对锕系元素的萃取率很低 ;有模拟料液时 ,除镅和锝外 。
The extraction capability of bis(2-propyloxy)-calix\crown-6/n-octanol was studied. The D(Cs) is strongly affected by acidity and dilution factor of simulated high-level liquid waste(SHLLW). There are little influences of other common ions except potassium. There is little change for D(Cs) in the range of the radiation dose 10~4~10~5 Gy. The distribution ratios of actinides are very low when aqueous phase is nitric acid. They distinctly increase when the aqueous phase is SHLLW except americium and technetium.
出处
《原子能科学技术》
EI
CAS
CSCD
2004年第4期301-305,共5页
Atomic Energy Science and Technology