Regeneration method of waste zinc oxide desulfurizer

The invention belongs to the technical field of regeneration of waste zinc oxide desulfurizers, and provides a regeneration method of a waste zinc oxide desulfurizer, which comprises the following steps: S1, crushing and sieving the waste zinc oxide desulfurizer, adding into a reaction kettle, adding ammonia water, and stirring; s2, introducing ammonia gas, and continuously stirring; s3, adding soluble ferric salt, and dropwise adding a hydrogen peroxide solution; s4, introducing carbon dioxide gas into the reaction kettle for carbonization, adjusting the pH value of the solution, and then filtering to obtain a filter cake and filtrate; s5, recovering the filter cake in a sulfur melting kettle, feeding the filtrate in an ammonia distillation kettle, and cooling and filtering the kettle liquid to obtain a basic zinc carbonate filter cake; s6, drying, roasting and crushing the basic zinc carbonate filter cake to obtain activated zinc oxide powder; and S7, uniformly kneading the activated zinc oxide powder with