Bromine recovery method and application thereof

The invention discloses a bromine recovery method and application thereof, and the method comprises the following steps: S1, mixing a bromine-containing flame retardant and sodium carbonate, and pyrolyzing to obtain a solid-phase product and a gas-phase product; s2, dissolving the solid-phase product to obtain an aqueous solution A; spraying and neutralizing the gas-phase product to obtain an aqueous solution B; mixing the aqueous solution A and the aqueous solution B; and S3, acidifying the product obtained in the step S2 with sulfuric acid, and then oxidizing the acidified product with hydrogen peroxide. Compared with the traditional process for recycling bromine from the circuit board, the bromine salt obtained by the method has the advantages of low impurity content, high reaction speed and easiness in obtaining auxiliary materials, and is suitable for industrialization. 本发明公开了一种回收溴的方法及其应用，包括如下步骤：S1：将含溴阻燃剂和碳酸钠混合后进行热解，得到固相产物和气相产物；S2：将所述固相产物溶解得水溶液A；将所述气相产物喷淋中和得水溶液B；将所述水溶液A和水溶液B混合；S3：以硫酸酸化步骤S2所得产物，之后以双氧水氧化所述