摘要
研究了二(2,4,4-三甲基戊基)单硫代膦酸(HBTMPTP,HL)和1-苯基-3-甲基-4-苯甲酰基吡唑酮-5(HPMBP,HA)的苯溶液在HNO3介质中对三价稀土元素的萃取性能。结果表明,在HNO3介质中存在协同效应,并且对三价重稀土元素存在反协同效应。以La(Ⅲ)为例,用斜率法确定了它在HNO3介质中所生成的协萃配合物的组成为LaNO3·HL2·A·2HA,计算了协萃反应的平衡常数,并观测了饱和协萃配合物的IR谱。
The synergistic extraction of rare earth elements from aqueous nitric acid with benzene solutions of bis(2,4,4 trimethylpentyl) monothiophosphinic acid (HBTMPTP,HL) and 1 phenyl 3 methyl 4 benzoyl pyrazolone 5 (HPMBP,HA) has been studied.The composition of the extracted complex of La(Ⅲ) has been determined to be LaNO 3·HL 2·A·2HA by slope analysis and IR spectrophotometer analysis.The equilibrium constants have also been calculated.
出处
《核化学与放射化学》
CAS
CSCD
北大核心
1997年第3期1-6,共6页
Journal of Nuclear and Radiochemistry
基金
国家攀登计划(稀土科学基础研究)资助项目