Process for precipitating Iron from acidic Solutions of ZINC SULFATE and Zinc hydrometallurgical method in production

摘要

It includes a process of direct Treatment of the neutral leaching residue in a single stage of hot acid leaching at normal atmospheric pressure or partial Height6 to 8 hours and temperature of 80 degrees centigrade to 90 C, where the Solvent is spent electrolyte that normally occurs in zinc Refineries, whose free acidity varies between 150 and 170 g / l g / l,Where dissolution of zinc is in the Order of 80% to 85%,Being accompanied by the simultaneous solution of iron in more than 80% and a residue of Lead and Silver in one stage of hot acid leaching