Researching of the process of a titanium-containing zeolite forming

Abstract

The aim is to develop an efficient heterogeneous catalyst for liquidphase epoxidation of olefins by hydrogen peroxide, for this a study of molding processes of titanium zeolite is conducted. Methods are based on granulation and application of the active ingredient to a solid supports. The extrusion granulation of titanium zeolite with binder was preferred. Organic and inorganic compounds, astringent (silica-alumina, aluminum, silicon, and other natural and synthetic materials) have been tested as a binder. Quality of the granular catalysts was evaluated by mechanical strength and catalytic activity – yield of propylene oxide and epichlorohydrin in the epoxidation of corresponding olefins. Optimal combination of mechanical strength (54–68 kg/cm2) and catalytic activity (high yield) was obtained on a titanium zeolite catalyst, prepared prepared c 5,6 oxyaluminum nitrate of 10–15 % (based on Al2O3) as a binder. These XRD and infrared spectroscopy reflect continuing titanium zeolite structure during its formation in the proposed method.