摘要
应用恒界面池法研究了三正辛胺和三正辛基氧化膦的正庚烷溶液从硫酸介质中协同萃取硫酸铀酰的动力学。提出了协萃反应的机理 ,认为萃取过程是界面区域内的两步连续反应。考察了温度对速率的影响 。
The extraction kinetics of uranium(Ⅵ) with the binary extractant sytstem of trioctylamine (TOA) and tri n octylphosphine oxide(TOPO) in n heptane from sulphuric acid media is studied using stationary interface stirring cell at 298 K. The synergism mechanism is reported that there are two step continuous reaction at the interface. The influence of temperature on the extraction rate is investigated. The activation energies( E f and E b) of the possitive and inverse reactions are calculated.
出处
《核化学与放射化学》
CAS
CSCD
北大核心
2001年第4期241-245,共5页
Journal of Nuclear and Radiochemistry
基金
国家自然科学基金资助项目 (2 96 710 2 2 )
宁夏自然科学基金资助项目 (C0 0 1)
宁夏大学科学基金项目(0 0 2 2 0 2 )
