PROCESS FOR PRODUCTION OF TITANIUM-CONTAINING SILICON OXIDE CATALYSTS, SUCH CATALYSTS, AND PROCESS FOR PRODUCTION OF OXIRANES WITH THE SAME

摘要

A process for the production of catalysts characterized by subjecting a titanium-containing silicon oxide prepared in a liquid phase in the absence of water by nonhydrolytic condensation represented by the reaction formula (I) to silylation; and a process for the production of oxiranes by reacting an olefinic compound with a hydroperoxide in the presence of a catalyst produced by the above process: (I) L1L2L3M-X+L4L5L6M-OR -> L1L2L3M-O-ML4L5L6+RX wherein M is Si or Ti; X is halogeno or carboxy; R is hydrogen or hydrocarbyl; and L1 to L6 are each independently alkoxy, halogeno, carboxy, hydrogen, or hydrocarbyl.