Separation of Platinum(IV) and Iron(III) with Liquid Membranes under Electrodialysis Conditions

The recovery of platinum(IV) from hydrochloric acid solutions containing an excess amount ofiron(III) with liquid tri-n-octylamine-1'2-dichloroethane membranes under conditions of galvanostatic dialysiswas studied. The influence exerted by the current density, by the composition of aqueous solutionsand liquid membranes on the rate of platinum(IV) transport and efficiency of separation of the metals wasanalyzed and the optimal process conditions were determined.