Molecular sieves having micro and mesoporosity, their synthesis and their use in the organic conversion reactions

摘要

A crystalline molecular sieve comprises at least [AlO4] and [PO4] tetrahedral units and comprising a first framework structure defining a first set of uniformly distributed pores having an average cross-sectional dimension of from about 0.3 to less than 2 nanometers and further comprising a second framework structure defining a second set of uniformly distributed pores having an average cross-sectional dimension of from 2 to 50 nanometers. The first framework structure is preferably of the CHA framework type.