Abstract: The floatation separation behavior of Pt(IV) by KBr-Cetylpyridinium bromide System in the presence of NaNO3 and the conditions for the separation of Pt(IV) from other metal ions were studied.The results showed that Pt(IV) combines with KBr and Cetylpyridinium bromide into a ternary ion association precipitate(CPB)2(PtBr6) in the aqueous solutions.The precipitate was floated well on the surface of water phase to make the system to divide into both liquid and sold phases with a distinct boundary layer.Pt(IV) ...