Process for preparing an IZM-2 zeolite in the presence of a nitrogenous organic structuring agent in hydroxide form and of an alkali metal chloride, in fluorinated or non-fluorinated medium

摘要

The invention relates to a process for preparing an IZM-2 zeolite, comprising at least:i) mixing, in aqueous medium, of at least one source of at least one tetravalent element X (XO₂), at least one source of at least one trivalent element (Y₂O₃), 1,6-bis(methylpiperidinium)hexane dihydroxide, at least one source of at least one alkali metal M of valency n chosen from alkali metal chlorides, n being an integer greater than or equal to 1, M being chosen from lithium, potassium, sodium and caesium, and the mixture of at least two of these metals, and optionally in the presence of a source of at least one fluoride anion, BF, the mixture having a specific molar composition to obtain a homogeneous precursor gel;ii) hydrothermal treatment of said precursor gel.