摘要
研究石油亚砜(PSO)与磷酸三丁酯(TBP)组成的二元中性体系(B-B体系)在HCl介质中对Au(Ⅱ)的萃取行为,发现其中有明显的协同萃取效应.用斜率法及红外、紫外光谱法确定协萃配合物的组成为H_3O^+·2PSO·TBP·AuCl_4^-.还讨论了协萃反应的机理.
The extraction behavior of Au(Ⅲ) by B+B system, petroleum sulfoxide (PSO) and tributyl phosphate (TBP), in HC1 medium was investigated.It was found that this system had a significant synergistic extraction effect for Au(Ⅲ). The composition of the extracted species was determined to be H_2O^+.2PSO.TBP.AuCl_4^- by using slope method, infrared spectra and ultraviolet spectra. The mechanism of synergistic extraction of gold was discussed.
出处
《贵金属》
CAS
CSCD
北大核心
1990年第2期6-11,共6页
Precious Metals
关键词
金
溶剂萃取
协同效应
亚砜
Gold, Solvent extraction, Synergistic effect, Sulfoxide,Tributyl phosphate
