Ifp Energies Nouvelles

Monique Prigent

Raquel Martinez Franco

The invention relates to a process for preparing a synthetic IZM-2 zeolite, which consists in performing a hydrothermal treatment of an aqueous gel containing a source of silicon and a source of amorphous aluminium, two nitrogenous or structuring organic compounds including two quaternary ammonium functions, 1,6-bis(methylpiperidinium)hexane dihydroxide and 1,6-bis(methylpiperidinium)hexane dibromide, used as a mixture, in combination with a source of a specific alkali metal chloride M (preferably NaCl), the aqueous gel not comprising any source of at least one fluoride anion.

Process for preparing an IZM-2 zeolite in the presence of a mixture of nitrogenous organic structuring agents in hydroxide form and of bromide and of an alkali metal chloride

The invention relates to a process for preparing an IZM-2 zeolite, comprising at least:

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

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Rueil-Malmaison, France

Monique Prigent