核化学与放射化学2012，Vol.34Issue(1)：14-20,7.
超重元素Sg的液相化学条件实验——Mo和W的萃取色谱行为
Extraction Chromatography Study of Mo and W for Model Experiment on Aqueous Chemistry of Superheavy Element, Sg
摘要
Abstract
The adsorption behavior of group 6 elements Mo and W on the a-benzoinoxime/PTFE material was investigated in order to develop an experimental approach to aqueous chemical characterization of seaborgium (Sg, element 106). The experimental results show that the maximal adsorption percentage of Mo and W can reach 92% and 87%, respectively. The adsorption kinetics of Mo is faster than W in 1 mol/L HNO3 solution. In HNO3/HF mixed acid solutions, there are significant differences in the behavior of both elements under the higher concentration of HF. This is because W has a stronger tendency for forming anionic species with fluoride ion than Mo. Moreover, the sorption process of Mo and W isexothermic and spontaneous, and their adsorption distribution coefficient is affected by temperature and decreases with the increasing of temperature.关键词
超重元素/Mo/W/萃取色谱分离/吸附Key words
superheavy element/Mo/W/extraction chromatography separation/adsorption分类
化学化工引用本文复制引用
范芳丽,秦芝,白静,吴晓蕾,范富有,王洋,田伟,赵梁,郭俊盛..超重元素Sg的液相化学条件实验——Mo和W的萃取色谱行为[J].核化学与放射化学,2012,34(1):14-20,7.基金项目
国家自然科学基金资助项目(No.11079006,20901080) （No.11079006,20901080）
