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。
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.
关键词
氧化
减压蒸馏
溴
回收
合成香料
甲基香兰素
Bromine
Retrieving
Reduced Pressure Distillation
Oxidation-Distillation
