Titanium silicate molecular sieve is partially substituted Ti atom aluminum silicate molecular sieve formed, belonging to the ZSM-5 series of zeolite molecular sieves, with MFI topology, by the silicon tetrahedron and titanium tetrahedra and other primary structural units, through the oxygen bridge connection , Forming a five-membered ring secondary structural unit and further forming a three-dimensional microporous framework. The MFI molecular sieve has a two-dimensional pore structure. The ten-membered ring parallel to the a-axis is S-shaped with a pore size of 0.51 nm × 0.55 nm, The ten-membered ring parallel to the b-axis is linear with a pore size of 0.54 nm × 0.56 nm.
The titanium silicalite molecular sieve produced by the company has an average particle diameter of 50-60nm, the minimum is close to 10nm and the maximum is less than 105nm, and the particle size distribution is even. The titanium-silicon molecular sieve can be used as a catalyst for catalytic oxidation and is widely used in oxidation reaction, epoxidation and amidoxime The reaction. For example, catalysts for the production of propylene oxide, catalysts for the production of cyclohexanone oxime.