中文摘要：

在水溶液中，铁（Ⅲ）与四丁基溴化铵和硫氰酸钾能够生成不溶于水的[Fe（SCN）6][TBAB]，三元缔合物．当加入硫酸铵后，该三元缔合物浮于水相上层形成界面清晰的液一固两相．通过浮选，Fe（Ⅲ）可以与V（V），Ir（Ⅳ），Pt（Ⅳ）和Ru（Ⅲ）定量分离．当溶液中四丁基溴化铵和硫氰酸钾的浓度分别为0．8mmol／L和7．0mmol／L时，Fe（Ⅲ）的浮选率达到98．2％以上．

英文摘要：

In the aqueous solutions Fe（m） combines with tetrabutyl ammonium bromide and KSCN into a ternary ion association precipitate [Fe （SCN）6 ] [ TBAB ]3. In the presence of （NH4 ）2 SO4, the precipitate was floated well on the surface of water phase to make the system to divide into liquid phase and sold phase with a distinct boundary layer. Fe （llI ） could be quantitatively separated from V （ Ⅴ ） , Ir （ Ⅳ ）, Pt （ Ⅳ ） and Ru （Ⅲ） by floatation. And 98.2% floatation percentage of Fe（ Ⅲ ） were obtained when the concentrations of tetrabutyl ammonium bromide and KSCN in solution were 0.8 mmol/L and 7.0 m mol/L, respectively.