- METHODS FOR ENHANCING THE EFFICIENCY OF RHENIUM-PROMOTED EPOXIDATION CATALYSTS AND EPOXIDATION METHODS UTILIZING THESE

摘要

A method for improving the efficiency of a rhenium-promoted epoxidation catalyst is provided. Advantageously, the process can be carried out in situ, i.e. in the epoxidation process, and in fact can be carried out during the production of the desired epoxide. Also provided is a process for the epoxidation of an alkylene containing such an improved process, wherein the alkylene oxide thus produced is used to produce 1,2-diol, 1,2-carbonate, 1,2-diol ether or alkanolamine Is also provided.;