Olefin epoxidation catalysts

摘要: A method of synthesizing an olefin epoxidation catalyst comprises the step treating a porous crystalline aluminosilicate material having X-ray diffraction pattern including d-spacing maxima at 12.4±0.25, 6.9±0.15, 3.57±0.07 and 3.42±0.07 Angstrom, such as MCM-22, with dealuminating agent under conditions effective to remove framework aluminum from produce dealuminated product. The product is then treated titanium-containing insert titanium into titanium-containing, composition. resultant useful in olefins, propylene cyclohexene, hydrogen peroxide organic hydroperoxides.