【摘要】 文中研究了离子缔合物体系浮选分离镉(Ⅱ)的行为及条件。实验结果表明,当固体NaC l用量为1.0g,0.1mol/L KI溶液和0.01mol/L溴化十六烷基吡啶(CPB)的用量均为1.0m l时,Cd2+可形成不溶于水的离子缔合物(CPB)2(CdI4)而被定量浮选,而Zn2+、N i2+、Mn2+、Co2+、Fe2+等离子在此条件下不被浮选,实现了Cd2+与这些离子的定量分离,并对合成水样中微量镉(Ⅱ)进行了定量浮选分离测定,结果满意。更多还原

【Abstract】 The flotation separation behaviour and the conditions of Cd²⁺by ionic associated system were studied.The results showed that with 1.0g of solid NaCl and 1.0ml of KI at 0.1mol/L and 1.0ml of CPB at 0.01mol/L,Cd²⁺may form ionic associate（CPB）₂（CdI₄） undissolving in water,and Cd²⁺was floated quantitatively,while Zn²⁺,Ni²⁺,Mn²⁺,Co²⁺,Fe²⁺was not floated.Therefore,Cd²⁺was successfully separated from those metal ions by flotation.Trace cadmium（Ⅱ） in the sample of synthetic water was separated by flotation and determined by spectrophotometry with satisfactory results.更多还原