Synthesis and Application of New Super-macroporous Zeolite Molecular Sieve

The pore diameter of MCM- 41 (a kind of new super -marroporous molecular sieve developed in early 90' s) is 3. 5nm and faraway surpass those of present microporous molecular sieves(< 1. 2nm)such as X,Y, mordenite and ZSM - 5 zeolite etc.It can be used in