PROCESS FOR THE PREPARATION OF A ZEOLITHE IZM-2 IN THE PRESENCE OF AN ORGANIC NITROGEN STRUCTURING IN HYDROXIDE FORM AND OF AN ALKALINE METAL CHLORIDE, IN FLUORINE OR NON-FLUORINE MEDIUM

摘要

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