Abstract: The flotation separation behavior of Pd(Ⅱ) in potassium bromide-tetrabutyl ammonium bromide system and the conditions for the separation of Pd(Ⅱ) from other metal ions were studied. The results showed that Pd(Ⅱ) could be quanttiatively separated from Ce(Ⅳ) 、Mo(Ⅵ) 、 Sn(Ⅳ) 、Mg(Ⅱ) and Ti(Ⅳ) by flotation when the concentrations of potassium bromide and tetrabutylammonium bromide in solution were 1.5×10-2 mol·L-1 and 2.0×10-3 mol·L-1,at pH1,respectively.The method has been used for the separation and deteminatio...