NOVEL ZEOLITIC MATERIALS WITH HETEROATOM SUBSTITUTIONS ON EXTERNAL SURFACE OF LATTICE FRAMEWORK

摘要

has a non-boron heteroatoms on the outer surface of the zeolite material lattice frame, The zeolite material is provided having a silanol resulting from hydrolysis of boron B heteroatom or over the rest of the lattice framework. Lattice framework of the zeolite material, a large pore 12-membered ring or a larger opening in the outer surface of the frame includes a 10-membered ring or a smaller opening below the outer surface of large pore openings. Further, a process for preparing the zeolitic material is provided. ;