The invention discloses a method for producing high-purity nano-
zinc oxide by an
ammonia method using electrolytic
zinc acid-leaching residues. The method comprises the following steps of: adding slaked
lime being 1-5% of the
mass of electrolytic
zinc acid-leaching residues before a leaching step to perform activation, then leaching with
ammonia-
ammonium bicarbonate solution, adding 0.3-0.5kg of
sodium fluorosilicate to per cubic meter of
ammonia-
ammonium bicarbonate solution, and refining after performing purification and
impurity removal. According to the method for producing high-purity nano-zinc
oxide by ammonia method using electrolytic zinc acid-leaching residues, the electrolytic zinc acid-leaching residues can be leached efficiently, the high-purity nano-zinc
oxide with the purity up to above 99.7% can be obtained, and the high-purity nano-zinc oxide has high practical value and economic value; all the valuable and harmful
heavy metals in the electrolytic zinc acid-leaching residues are leached and utilized, so that the obtained final leaching residues are converted from electrolytic zinc acid-leaching residues as high
hazard wastes into ordinary
solid wastes, the environment is protected, and the resources are rationally utilized.