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L．Gotfryd等研究了从沉淀碳酸镉或镉胶结海绵及含其他组份,如锌,的重度污染物的浸出液中液-液萃取镉(Ⅱ)。溶液首先净化,通过氧化水解去除铁和其他污染物,等浓度的二异丙基水杨酸和Cyanex 471X混合物(0．5 mol/L+0．5 mol/L)用Solvesso 150稀释后用作萃取剂。试验既以实验室模拟逆流体系,也用混合澄清器以连续逆流方式进行,都获得了良好的Cd(Ⅱ)和Zn(Ⅱ)的分离效果。
L. Gotfryd et al. Studied liquid-liquid extraction of cadmium (II) from leaching solutions of precipitated cadmium carbonate or cadmium-binding sponges and heavy contaminants containing other components, such as zinc. The solution was first purified, iron and other contaminants were removed by oxidative hydrolysis, diluted with Solvesso 150 at equal concentrations of diisopropylsalicylic acid and Cyanex 471X mixture (0.5 mol / L + 0.5 mol / L) Extracting agent. Experiments both in the laboratory simulation of the countercurrent system, but also with a mixed clarifier continuous countercurrent manner, have obtained a good separation of Cd (Ⅱ) and Zn (Ⅱ).