对甲基苯甲醛合成技术研究进展

RESEARCH PROGRESS IN SYNTHESIS TECHNOLOGY OF p-METHYLBENZALDEHYDE

介绍了甲苯羰基化、对二甲苯卤代水解氧化、对二甲苯间接电氧化和对二甲苯直接氧化等对甲基苯甲醛合成技术研究现状。对催化剂发展进行了评述,指出对二甲苯间接电氧化与太阳能光伏发电产业结合和对二甲苯直接液相氧化并联产对甲基苯甲酸工艺,具有工业开发前景。

The current research status of synthesis technologies of p-methylbenzaldehyde are introduced,including carbonylation of toluene,halogenated hydrolytic oxidation of p-xylene,indirect electro oxidation of p-xylene,and direct oxidation of p-xylene.The development of catalysts is also reviewed.The combination of indirect electro oxidation of p-xylene and solar photovoltaic power generation industry,as well as the direct liquid phase oxidation of p-xylene and co-production of p-methylbenzoic acid,have been proposed,which has the prospects of industrial development.