Synthesis of BEA, MTW and MFI type zeolites possessing additional meso- and macro porosity using cyclicdiammonium organic templates

摘要

The present invention relates to zeolites, and similar minutes, having a very small crystal size of 5-50 nm size by the addition of cyclic dimethyl ammonium on synthetic zeolites of the composition of the synthesis itself. In addition, the present invention is dealumination, ion exchange, and the other activated by the after-treatment or other functionalized micro-includes a mesoporous molecular sieve material and the catalyst utilization. ; The nanocrystalline composite according to the present invention molecular sieve has micropores (diameter 1nm) to between the mesopores (2 diameter 50 nm) and macro pores, including minute between itself crystal (50 nm diameter) to the present this is due to promote molecular diffusion, the activity was improved significantly in function of the catalyst and the ion exchange resin seen in conventional zeolites. In addition to facilitating the diffusion and absorption of macromolecules it exhibits very high reactivity, etc. alkylation, acyl migration reaction of the large organic molecules. ; Nanocrystals, mesopores, macro pore zeolite.