间接电合成对甲基苯甲醛减废工艺  

Study on Waste Minimization Process in P Tolualdehyde Production by Indirect Electrosynthesis

作　　者：孙治荣[1] 胡翔[1] 胡万里[1] 周定[1] 

机构地区：[1]哈尔滨工业大学

出　　处：《化工环保》1999年第2期108-113,共6页Environmental Protection of Chemical Industry

基　　金：国家自然科学基金

摘　　要：采用间接电合成法生产对甲基苯甲醛，不仅产品的产率高，而且由于实现了电解媒质的循环使用，使整个过程无废液排放，既节省了资源，又保护了环境。该法以对二甲苯为原料，其反应过程为：Ｍｎ（Ⅱ）电解氧化生成Ｍｎ（Ⅲ）；Ｍｎ（Ⅲ）氧化对二甲苯生成对甲基苯甲醛。上述反应，前者的电流效率较高，为８５％左右；后者的产品产率较高，约为６９％。P tolualdehyde production by indirect electrosynthesis is characterized by high yield of product and no discharge of waste liquid due to recycle of electrolytic media,realizing save of resources and protecting environment.The reaction processes are as follows:Mn (Ⅱ) is oxidized to Mn (Ⅲ) by electrolysis;then the raw material p xylene is oxidized to p tolualdehydeby Mn (Ⅲ).For theformer reaction the current efficiency is about 85%;for the latter reaction the yield rate of product is about 69%.

关 键 词：间接电合成 废液处理 对甲基苯甲醛 减废工艺 

分 类 号：X783[环境科学与工程—环境工程]