Process method for producing bromine by electrolytically acidizing sodium bromide

The invention discloses a process method for producing bromine through electrolytic acidification of sodium bromide, and relates to the technical field of bromine production.The process method comprises the specific steps that S100, waste water pretreatment is conducted, specifically, sodium bromide waste water is subjected to primary treatment, suspended solids and impurities in the waste water are removed, and pretreated sodium bromide waste water is obtained.By optimizing the electrolytic acidification process, the water content of the waste water is reduced; according to the method, the bromine ions are efficiently converted, in the electrolysis process, the conversion ratio of the bromine ions to bromine is effectively increased by accurately controlling electrolysis conditions, optimizing electrode materials and adjusting wastewater components, and meanwhile, in the bromine extraction link, the bromine extraction efficiency is remarkably improved by carefully selecting a reducing agent and reduction con