Ge(Ⅳ)与Ga(Ⅲ)、Pb(Ⅱ)、Ce(Ⅲ)、V(Ⅴ)和W(Ⅵ)的析相绿色萃取分离和富集

Green Extraction Separation and Concentration of Germanium(Ⅳ) from Gallium(Ⅲ),Plumbum(Ⅱ),Cerium(Ⅲ),Vanadium(Ⅴ) and Wolfram(Ⅵ)

用光度法研究了正丙醇-碘化钾-水体系萃取分离锗的行为,探讨了Ge(Ⅳ)与一些金属离子的分离条件。实验表明.当溶液中正丙醇、碘化钾和硫酸铵的浓度分别为30%(V/V)、8.0×10^(-3)mol/L和0.20g/mL时,Ge(Ⅳ)与Ga(Ⅲ)、Pb(Ⅱ)、Ce(Ⅲ)、V(Ⅴ)和W(Ⅵ)可定量分离。

The behavior for extraction and separation of germanium with 1-propyl alcohol-potassium iodide-water system and the separation conditions of germanium（Ⅳ） with other metal ions were studied by spectrophotometry.The result showed that germanium（Ⅳ） could be separated from gallium（Ⅲ）,plumbum（Ⅱ）,cerium（Ⅲ）,vanadium（Ⅴ） and wolfram（Ⅳ）,when the concentrations of 1-propyl alcohol,potassium iodide and ammonium sulfate in solution were 30% （Ⅴ/Ⅴ）,8.0×10^（-3）mol/L and 0.20g/mL,respectively.