Abstract: High-purity zinc chloride product has been prepared by taking advantage of hydrochloric acid to leach industrial zinc ash, and meanwhile the element sulfur in the zinc ash can be obtianed in the form of yellow sulfur.Oxygen-rich catalytic leaching technology is environment-friendly and can effectively recover limited resources.Optimum process conditions for acid-leaching zinc ash were as follows:mass concentration of surfactant SDBS was 0.2 g/L,hydrochloric acid concentration was 8.00 mol/L,mass ratio of liquid to solid was 10∶1,addition amount of HNO<SUB>3</SUB> (catalyst) was 0.1% of the volume of leaching solution,and control leaching solution temperature at 363 K for 3 h.Leaching rate could reach above 98% under these conditions.If waste hydrochloric acid can be adopted and heavy metals and by-product sulfur can be effectively recovered,the industrial cost can be further reduced and the environmental goal of green production can be truly achieved.