SYNTHESIS OF NANOCRYSTALLINE MFI ZEOLITE, SYNTHESIS METHOD AND USE THEREOF IN CATALYTIC APPLICATIONS

摘要

The present invention relates to a new process for synthesising a crystalline material comprising the zeolite MFI structure in nanocrystalline form, and which can comprise at least the following steps: i) preparing a mixture comprising at least one source of water, at least one source of a tetravalent element Y, at least one source of a trivalent element X, at least one source of an alkali cation or alkaline earth metal cation (A), and at least one organic molecule (OSDA1), wherein OSDA1 is preferably a monocyclic quaternary ammonium with the structure R₁R₂CycloN⁺, the molar composition of the mixture being: n X₂O₃ : YO₂: a A : m OSDA1 : z H₂O; ii) crystallising this mixture in a reactor; and iii) recovering the crystalline material obtained.