Abstract: Waste zinc-bearing catalyst is a kind of zinc-containing waste，and zinc resource could be recovered by ammonium salt leaching process.First，the waste zinc-bearing catalyst should be pretreated.Then use ammonium chloride as leaching agent to get zinc chloride solution by leaching reaction and filtrating separation.The suitable process conditions have been acquired：the particle size of waste zinc catalyst was at 58~80 μm，the mass fraction of ammonium chloride was 17 %，reaction time was 2 h，and reaction temperature was 60 ℃.The leaching rate of Zn was up to 95.2% and the residual rate of nickel was 0.7% under those conditions.The experiment confirmed the advantages of using the ammonium chloride solution as leaching agent.The XRD pattern showed the precursor was Zn₄CO₃（OH）₆·H₂O and the sample was ZnO，whose particle size was 63 nm， and the purity was 99.3%.

Key words: waste zinc-bearing catalyst, leaching agent, ammonium chloride, zinc oxide