C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
C01B 39/02 (2006.01) B01J 29/70 (2006.01) C07C 2/66 (2006.01) C07C 6/12 (2006.01)
Patent
CA 2570342
The present invention relates to a new zeolite having a beta-type crystalline structure, characterized by a distribution of the Lewis acid sites and Brønsted acid sites corresponding to a molar ratio [Lewis sites] [Brønsted sites] equal to or higher than 1.5. This new zeolite is useful in preparation processes of alkytated aromatic hydrocarbons through the alkylation and/or transalkylation of aromatic compounds. The preparation method of the new zeolite is also object of the present invention.
La présente invention concerne un nouveau zéolite à structure cristalline bêta, caractérisé par une distribution entre sites d'acide de Lewis et sites d'acide de Brønsted correspondant à un rapport molaire [sites de Lewis] [sites de Brønsted] d'au moins 1,5. Ce nouveau zéolite convient à l'obtention d'hydrocarbures aromatiques alkylés par alkylation et/ou transalkylation de composés aromatiques. L'invention concerne également le procédé d'obtention du zéolite de l'invention.
Carati Angela
Girotti Gianni
Ramello Stefano
Rivetti Franco
Spano' Guido
Eni S.p.a.
Polimeri Europa S.p.a
Robic
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