【摘要】 研究了硫酸铵 碘化钾 乙基紫体系浮选Pb(Ⅱ )的性能及Pb(Ⅱ )与常见离子的分离。研究表明 ,在水溶液中 ,Pb(II)与I- 、乙基紫阳离子 (EV+ )生成三元离子缔合物沉淀 (PbI- 3)·(EV+ ) 2 和 (PbI2 - 4)·(EV+ ) 2 。在 0 1g/mL (NH4 ) 2 SO4 存在下 ,该沉淀能很好地浮于水相表面。在水相pH为 1 0～ 4 0时 ,通过浮选可使Pb(Ⅱ )与Zn(Ⅱ )、Mn(Ⅱ )、Fe(Ⅲ )、Co(Ⅱ )、Al(Ⅲ )、Ni(Ⅱ )离子完全分离更多还原

【Abstract】 The Pb(Ⅱ) ions have been separated by a flotation system consisted of ammonium sulfate, potassium iodide and ethyl vielot(EV). The results show that ternary ion-association precipitates (PbI - 3)·(EV + ) and (PbI 2- 4)·(EV + ) 2 are formed . In the presence of 0 1 g /mL (NH 4 ) 2 SO 4 , the precipitates floated on the surface of wate r phase can be easily separated by water. Thus Pb(Ⅱ) can be completely separated from Zn(Ⅱ), Mn(Ⅱ), Fe(Ⅲ), Co(Ⅱ), Al(Ⅲ) and Ni(Ⅱ) in aqueous solution of pH=1 0～4 0.更多还原