Microporous crystalline material (itq-19) with laminar...

C - Chemistry – Metallurgy – 01 – B

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Details

C01B 39/48 (2006.01) B01J 29/035 (2006.01) B01J 29/06 (2006.01) B01J 29/70 (2006.01) C01B 33/38 (2006.01) C01B 37/02 (2006.01) C10G 11/05 (2006.01) C10G 45/64 (2006.01)

Patent

CA 2436430

The invention relates to a novel microporous crystalline material ITQ-19 used in the catalytic conversion of organic compounds, such as, for example, the dewaxing and isodewaxing of paraffins and the disproportionation of toluene. Said material has a characteristic X-ray diffractogram, a high absorption capacity and the empirical formula x(M1/nXO2): yYO2: (1-y)SiO2, wherein x has a value less than 0.2; y has a value less than 0.1; M is at least an inorganic cation with a +n charge; X is at least a chemical element having oxidation state +3, preferably selected from among Al, Ga, B, Cr, Fe; Y is at least a chemical element with oxidation state +4, preferably selected from among Ge, Ti, Sn, V. The inventive material can be obtained by means of a preparation process involving the use of one or more organic additives in a reaction mix which is crystallised by heating.

L'invention concerne un nouveau matériau cristallin microporeux ITQ-19, utilisé dans des processus de conversion catalytique de composés organiques, comme par exemple le déparaffinage et l'isodéparaffinage de paraffines et la disproportionation de toluène, présentant un diffractogramme de rayons X caractéristique et une capacité élevée d'adsorption et possédant la formule empirique x(M¿1?/¿n?XO¿2?) : yYO¿2? : (1-y)SiO¿2?, dans laquelle x possède une valeur inférieure à 0,2 ; y possède une valeur inférieure à 0,1 ; M est au moins un cation organique de charge +n ; X est au moins un élément chimique à l'état d'oxydation +3, sélectionné de préférence parmi Al, Ga, B, Cr, Fe ; et Y est au moins un élément chimique à l'état d'oxydation +4, sélectionné de préférence parmi Ge, Ti, Sn, V. Ce matériau peut être obtenu à l'aide d'un procédé de préparation consistant à utiliser un ou plusieurs additifs organiques dans un mélange de réaction se cristallisant par réchauffement.

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