【摘要】 在合成甲基香兰素的新工艺中，用减压蒸馏和氧化－蒸馏方法回收废水中的溴，既降低了原料的消耗，又防止了环境污染。更多还原

【Abstract】 In the new synthesis of methyl vanillin,the bromine in waste water was retrieved by reduced pressure distillation and oxidation-distillation,as a result bromine consumption was reduced andpollution prevented.更多还原