Abstract:Hydrogen peroxide desulfurization technology is widely used in various industries. The technology has been applied in the treatment of SO2 in the waste copper smelting flue gas of tilting furnace in Guixi Smelter. The flue gas enters the desulfurization tower after cooling and dedusting by Venturi scrubber. The SO2 in the flue gas reacts with diluted hydrogen peroxide in the desulfurization tower with strong oxidation of hydrogen peroxide to achieve the purpose of removal. The flue gas containing acid mist is discharged up to the standard after being removed by electric mist removal. The process has the advantages of short process, high separation efficiency,precise control and low resistance. The dilute acid produced at the same time can be recycled without secondary pollution.