Low-copper-iron-lead zinc hydrometallurgy process

The invention discloses a low-copper-iron-lead zinc hydrometallurgy process and relates to the technical field of smelting. The low-copper-iron-lead zinc hydrometallurgy process comprises the steps that zinc ore is smashed and then added into an electrolytic solution, the temperature of the electrolytic solution is 35 DEG C-38 DEG C, and the electric current density between a cathode plate and an anode plate is 350-400 A/m ; the electrolytic solution comprises less than 5 mg/L of Fe, less than 0.2 mg/L of Cu, 180-195 g/L of H2SO4 and 55-65 g/L of Zn; the weight of a precipitated single zinc sheet is 75-80 kg. According to the low-copper-iron-lead zinc hydrometallurgy process, the three impurities of copper, iron and lead can be controlled in one process procedure, the method is simple, and the production cost is reduced; a zinc ingot with extra high quality can be produced, the zinc content is 99.995% or above, the copper content is 0.0001%, the iron content is 0.0001%, and the requirement for high-qu