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研究了在硫酸铵存在下,碘化物-结晶紫-丙醇体系萃取镉的行为以及丙醇水溶液的分相条件。试验表明,丙醇作为萃取溶剂,能萃取中性离子缔合物。调节溶液pH=1. 0或 pH=4.0,该体系能使 Cd2+从常见过渡元素 Fe3+、Co2+、Ni2+、Mn2+、Zn2+、Cr3+的混合液中分离出来。
The behavior of cadmium extracted by iodide-crystal violet-propanol system in the presence of ammonium sulfate and the separation conditions of aqueous propanol solution were studied. Experiments show that propanol as an extraction solvent, can extract neutral ion association. Adjust the solution pH = 1. 0 or pH = 4.0. The system can separate Cd2 + from the common transition elements Fe3 +, Co2 +, Ni2 +, Mn2 +, Zn2 + and Cr3 +.