Research progress of toluene oxidation to benzaldehyde and related mesocatalytic systems
Benzaldehyde is the simplest aromatic aldehyde and has important applications in multiple industries.The highly selective catalytic oxidation of toluene to benzaldehyde using air or oxygen as the oxidant under halogen-free conditions has the advantages of high atomic utilization and low emissions of the three wastes.It is a green and clean production method with high product grade;which can meet high-end applications in industries such as spices;food;and medicine.However;this process has never been successful in industry for over 50 years.This article summarizes and comments on the main catalyst systems that have been reported for this reaction;as well as the research progress related to reaction mechanisms.It analyzes the key issues that restrict the development of this reaction into technical applications;and further elaborates on the research progress of the meso-catalytic system developed by our research group in this reaction.It explores the possibility of developing this type of catalytic system into a high-performance process technology for toluene oxidation to benzaldehyde.Prospects for future development directions and trends are presented.
NETL
NSTL
万方数据
维普
