摘要
研究了仲胺7203(简写为7203)萃取铌硫氰酸盐络合物的性能及其机理。讨论了稀释剂性质、添加剂用量对铌分配比的影响及反萃取条件的选择,应用斜率法、饱和法、UV-VIS和IR光谱分析法确定了萃合物组成,提出了可能的萃取机理。
The extraction properties and mechanism of niobium thiocyanate complex with secondary amine 7203 are studied. The extraction dependency of niobium on the properties of diluent, the amounts of additive and the stripping condition is also discussed. The compositions of the extractive species, (ANH2) [NbO(CNS)4] or (ANH2) [Nb (OH)2 (CNS)4], are determined by the slope method , saturation method , etc. The extraction reaction can be expressed as follows:The possible extraction mechanism is proposed
出处
《核化学与放射化学》
CAS
CSCD
北大核心
1992年第2期86-93,共8页
Journal of Nuclear and Radiochemistry
关键词
铌
硫氰酸盐
仲胺7203
萃取
Niobium, Thiocyanate, Secondary amine, Extractive properties, Extraction mechanism.
