Catalyst – solid sorbent – or support therefor: product or process – Zeolite or clay – including gallium analogs
Reexamination Certificate
2005-06-21
2011-10-04
Wood, Elizabeth (Department: 1732)
Catalyst, solid sorbent, or support therefor: product or process
Zeolite or clay, including gallium analogs
C502S063000, C502S064000, C502S068000, C423S700000, C423S704000, C585S446000, C585S450000, C585S467000, C585S470000, C585S475000
Reexamination Certificate
active
08030238
ABSTRACT:
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 alkylated 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.
REFERENCES:
patent: 4384161 (1983-05-01), Huang
patent: 4891458 (1990-01-01), Innes et al.
patent: 5959168 (1999-09-01), van der Aalst et al.
patent: 7459412 (2008-12-01), Lercher et al.
patent: 2004/0045871 (2004-03-01), Bauer
patent: 2007/0209968 (2007-09-01), Euzen
patent: 91 11413 (1991-08-01), None
patent: 93 20029 (1993-10-01), None
Corma et al., “Isbutane/2-butene alkylation on zeolite beta: Influence of post-synthesis treatments”, Applied Catalysis A: General, 142 (1996), 139-150.
Mintova et al., “Variation of the Si/Al ratio in nanosized zeolite Beta crystals”, Microporous and Mesoporous Materials, 90 (2006), 237-245.
Carati Angela
Girotti Gianni
Ramello Stefano
Rivetti Franco
Spano′ Guido
Eni S.p.A.
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Polimeri Europa S.p.A.
Wood Elizabeth
LandOfFree
Catalyst and process for the preparation of alkylated... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Catalyst and process for the preparation of alkylated..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Catalyst and process for the preparation of alkylated... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4276839