Leaching process of zinc roasted ore

The invention relates to a leaching process of zinc roasted ore, and belongs to the technical field of zinc roasted ore leaching. According to the method, iron removal and neutralization are used for replacing traditional neutral leaching, the precipitation form of iron during iron removal and neutralization is goethite by controlling the iron removal and neutralization conditions, slag entering of germanium and leaching of copper are achieved, the leaching rate of copper is increased, germanium and copper are separated more thoroughly, and the produced copper slag does not need to be subjected to copper-germanium separation; the process does not need to replace copper with iron powder, and the consumption of manganese powder or hydrogen peroxide is reduced. 本发明涉及一种锌焙烧矿的浸出工艺，属于锌焙烧矿浸出技术领域；本发明用除铁和中和取代传统的中性浸出，并通过控制除铁和中和条件，使除铁和中和时铁的沉淀形态为针铁矿，实现锗的入渣和铜的浸出，提高了铜的浸出率，使锗和铜的分离更彻底，且产出的铜渣无需再进行铜锗分离；本发明的工艺还不需要铁粉置换铜，减少了锰粉或双氧水耗量。