Zeolite ITQ-16

Details Zeolite ITQ-16 Zeolite ITQ-16

2005-07-12

2005-07-12

Sample, David (Department: 1755)

Chemistry of inorganic compounds

Zeolite

Structure defined x-ray diffraction pattern

C423S705000, C423S706000, C423S708000, C208S111010, C208S120010, C208S135000, C585S467000, C585S722000, C585S732000, C568S300000, C549S529000, C549S531000

Reexamination Certificate

active

06916459

ABSTRACT:
This invention refers to a new zeolitic material included under the ITQ-16 denomination, to the method for obtaining them and their use as catalysts.This material, ITQ-16 zeolite, is characterized by having different ratios of the different polymorphs A, B and C described as possible intergrowths in Beta zeolite and which, therefore, show different X-ray diffraction patterns to that described for Beta zeolite, showing the X-ray diffraction pattern for ITQ-16, as it is synthesised, diffraction peaks at 2θ angles of 6.9°, 7.4°, and 9.6°, simultaneously.ITQ-16 zeolite in its calcinated form has the following empiric formula:in-line-formulae description="In-line Formulae" end="lead"?x(M1
XO2):tTO2:gGeO2:(1−g)SiO2in-line-formulae description="In-line Formulae" end="tail"?where T is one or various elements with +4 oxidation status, different of Ge and Si; X is one or various elements with +3 oxidation status and M can be H+or one or various inorganic cations with charge +n, t is comprised between 0 and 0.1, g is comprised between 0.001 and 0.33 and x is comprised between 0 and 0.2.

REFERENCES:
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patent: 4826667 (1989-05-01), Zones et al.
patent: 6409986 (2002-06-01), Camblor Fernandez et al.
patent: 6733742 (2004-05-01), Elomari
Beta family, polymorph A (*BEA)—polymorph B; Zeolites 16:323-802; 1996, p. 641.
Perez-Pariente et al; Crystallization Mechanism of Zeolite Beta From (TEA)2O, Na2O and K2O Containing Aluminosilicate Gels; Applied Catalysis, 31 (1987) pp. 35-64.
Newsam et al; Structural Characterization of Zeolite Beta; Proc. R. Soc. Lond. (1988) pp. 375-405.
Corma et al., ITQ-16, a new zeolote family of the beta group with differnet proporitions of polymorphs A,B and C, Chem. Comm., 2001, ISSN 1359, 1720-1721.

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