Catalytic monoepoxidation of butadiene over titanium silicate molecular sieves TS-1

Titanium silicate molecular sieves TS-1 have been prepared under hydrotherm al conditions with tetrapropylammonium hydroxide as structure-directing age nt. The structures of TS-1 were characterized by means of XRD, TEM, FT-IR, DR UV-Vis, ICP-AES, and N-2 adsorption/desorption techniques. Its catalytic performances in the epoxidation of butadiene with hydrogen peroxide were i nvestigated; 3,4-epoxy-1-butene was obtained with high selectivity. The inf luences of various parameters such as temperature, solvent, and titanium co ntent on the activities of the catalysts were studied systematically.