Bromine purification method

The invention discloses a bromine purification method which is characterized by comprising the following steps: (1) mixing bromine and concentrated sulfuric acid to form a mixed solution, fully stirring the mixed solution, standing and layering after stirring completion, and taking out the bromine layer after layering completion so as to obtain crude bromine; and (2) distilling the crude bromine,collecting fraction in a temperature range from 59 DEG C to 61 DEG C, and taking the obtained fraction as the refined bromine. The bromine purification method disclosed by the invention is less in process links, low in operating difficulty, simple, feasible and capable of obtaining high-purity bromine. 本发明公开了种溴素的提纯方法，其特征在于包括以下步骤：（1）将溴素与浓硫酸混合形成混合液，然后充分搅拌混合液，搅拌完成后静置分层，分层完成后取出溴素层，得粗品溴素；（2）蒸馏粗品溴素，收集59℃-61℃温度范围的馏分，所得馏分为精品溴素。本发明工艺环节较少，操作难度较低，简单易行，可以获得高纯度的溴素。