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1. (WO2018077764) METHOD FOR PREPARING A COMPOSITE POROUS MATERIAL

Pub. No.:    WO/2018/077764    International Application No.:    PCT/EP2017/076932
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Tue Oct 24 01:59:59 CEST 2017
IPC: B01J 37/03
B01J 29/06
B01J 29/40
B01J 21/04
C10G 47/16
C10G 49/08
C10G 65/04
B01J 37/04
Applicants: IFP ENERGIES NOUVELLES
Inventors: BOUALLEG, Malika
HARBUZARU, Bogdan
Title: METHOD FOR PREPARING A COMPOSITE POROUS MATERIAL
Abstract:
The invention describes a method for preparing a composite porous material comprising at least one zeolite and at least one alumina precursor, said method comprising at least the following steps: a) a step of obtaining zeolite crystals in suspension in the synthesis reaction medium, comprising a step of reacting, in an aqueous mixture, at least one source of at least one oxide XO2, at least one source of at least one oxide Y2O3, at least one basic source of at least one alkali metal and/or alkaline earth metal M of valence n, and/or at least one organic species R comprising one or more quaternary nitrogen atoms or a phosphorous atom, wherein X represents at least one tetravalent element chosen from silicon, germanium, titanium and the mixture of at least two of these tetravalent elements, Y represents at least one trivalent element, chosen from aluminium, boron, iron, indium and gallium, M is at least one alkali metal and/or one alkaline earth metal of valence n, chosen from lithium, sodium, potassium, calcium, magnesium and the mixture of at least two of these metals, R is chosen from tetrapropylammonium bromide, tetrapropylammonium hydroxide, 18-crown 6 ether, hexamethonium dibromide, tetraethylammonium hydroxide, ethylenediamine, 2,6-dimethylpiperidine; b) at least one step of precipitating at least one alumina precursor in the suspension obtained at the end of step a), by bringing it into contact with at least one acidic aluminium precursor.