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公开(公告)号:US06458971B1
公开(公告)日:2002-10-01
申请号:US09577157
申请日:2000-05-24
IPC分类号: C07D30760
CPC分类号: C07C51/215 , C07C57/145
摘要: Disclosed is a process for the preparation of maleic anhydride which comprises subjecting an aliphatic hydrocarbon having four or more carbon atoms to gas phase oxidation reaction in the presence of a catalyst, wherein supposing that the function of reaction product gas composition is FL and the function of temperature and pressure of reaction product gas is FR, the safety index F satisfies the following relationship (1): F=FL−FR>0 (1) According to the present invention, it is possible that the loss of unreacted hydrocarbon and maleic anhydride as reaction product due to non-catalytic oxidation reaction is prevented while effecting the reaction in a stable manner, whereby the yield of maleic anhydride can be kept maximum while assuring safety.
摘要翻译: 公开了一种制备马来酸酐的方法,其包括在催化剂存在下使具有四个或更多个碳原子的脂族烃进行气相氧化反应,其中假定反应产物气体组成的函数为FL, 反应产物气体的温度和压力为FR,安全指数F满足以下关系式(1):根据本发明,由于非催化氧化反应,作为反应产物的未反应的烃和马来酸酐的损失可能 在稳定地进行反应的同时被防止,从而马来酸酐的产率可以保持最大,同时确保安全性。