摘要
以高位阻叔胺萃取剂Ｎ３４１８自盐酸溶液中对Ｐｄ（Ⅱ）进行了萃取研究．对萃取时间、水相的酸度、水相ｐＨ值、萃取剂的浓度、稀释剂等影响因素进行了较全面的分析；用硫脲作反萃剂对反萃率进行了探讨．应用连续变换法、饱和法、斜率法确定了配合物的组成为１∶４，并用红外光谱对萃合机理进行了初步讨论．
The extraction method of palladium (Ⅱ) with high sterically hindered tertiary amine from hydrochloric acid medium is studied in this paper. The influence of some factors, such as extraction time, acidity and pH value of aqueous phase, the concentration of extracting agent and inert solvent are discussed. The stripping rate is studied using sulfur urea as stripping agent. In addition, the composition of the extracted complex is 1∶4 confirmed by the continuous varying method, the saturation method and the slope coefficient method.
出处
《天津纺织工学院学报》
北大核心
1997年第5期57-61,共5页
Journal of the Tianjin Institute of Textile Science and Technology
关键词
N3418萃取剂
盐酸
钯
萃取
N 3418 extracting agent, hydrochloric acid, palladium, extraction
