Method for the hydrolytic precipitation of Iron

摘要

From a Solution containing sulfate and non-ferrous MetalsWhere iron is present in the ferrous form in solution and is oxidized to its Trivalent form at the stage of precipitation of Iron, using gas containing oxygen and in the presence of sodium ions.Potassium and ammonium jarosite, and Nuclei, the temperature of Phase precipitation, at most, the Boiling Point of the solution. Non-ferrous Metals Zn, ni and cu.The ferrous iron content in the solution is neutralized by at least a pH of 4 with Calcined ZnThe solution is neutralized or driving to the last stage of a neutral leaching in two stages of the Calcined