乙醛装置副产巴豆醛氧化制巴豆酸工艺研究  

Synthesis of Crotonacid by Oxidation of Crotonaldehyde from Acetaldehyde Unit Byproduct

作　　者：李为民[1] 邬国英[1] 单玉华[1] 

机构地区：[1]江苏石油化工学院精细化工重点实验室,江苏常州213016

出　　处：《江苏石油化工学院学报》2002年第4期4-6,共3页Journal of Jiangsu Institute of Petrochemical Technology

基　　金：江苏石油化工学院科技基金资助(ZMF02010020)

摘　　要：用加盐萃取法从巴豆醛-乙醛-水三元共沸物中分离回收含量为65%的巴豆醛,再把该巴豆醛催化氧化合成巴豆酸。结果表明在催化剂用量为0 15%、反应温度35℃,反应时间1 5h下进行氧化反应,巴豆酸的得率为71 3%,纯度99 72%。An extraction process method of adding salt was used to separate crotonaldehyde from the form of crotonaldehyde-acetaldehyde-water trinary azeotrope.The concentration of crotonaldehyde is 65% and then this crotonaldehyde is oxidized and the crotonacid is synthesized.It is showed that the yield of crotonacid is 713% and the purity of crotonacid is as high as 9972% under the reaction temperature of 35℃,with 15 hr reaction time and 015%(w) catalyst. 

关 键 词：乙醛装置 副产 巴豆醛 氧化 巴豆酸 工艺 研究 制备 

分 类 号：TQ224.124[化学工程—有机化工]