Chemistry of inorganic compounds – Zeolite – Structure defined x-ray diffraction pattern
Reexamination Certificate
2008-03-18
2008-03-18
Brunsman, David M (Department: 1755)
Chemistry of inorganic compounds
Zeolite
Structure defined x-ray diffraction pattern
C423S702000, C423S705000, C423S707000, C502S061000, C502S064000, C502S066000
Reexamination Certificate
active
11200534
ABSTRACT:
The invention relates to a porous crystalline material (ITQ-24), the preparation method thereof and the use of same in the catalytic conversion of organic compounds. More specifically, the invention relates to a synthetic porous crystalline material which is characterised in that it is formed by tetrahedrally coordinated atoms which are interconnected by means of oxygens. Said material, which comprises a unit cell containing 56 tetrahedrally coordinated atoms, is known as ITQ-24. Moreover, in the calcined anhydrous state, the material has chemical formula nM1/pXO2: YO2, wherein: X is at least one trivalent element, Y is at least one tetravalent element, n is between 0 and 0.2 and M is at least one charge compensation cation in oxidation state p.
REFERENCES:
patent: 4676958 (1987-06-01), Zones
patent: 5219813 (1993-06-01), Kumar et al.
patent: 6471940 (2002-10-01), Kurata et al.
patent: 2007/0048214 (2007-03-01), Zones et al.
patent: 0 551 688 (1993-07-01), None
patent: WO03/074422 (2003-09-01), None
Bhaumik, A. et al, Synthesis of MTW-type microporous material and its vandium-silicate analogue using a new diquaternary ammonium cation as a template, Microporous Materials, 1995, vol. 5, No. 3, pp. 173-178.
Mal, N.K. et al, Sn-ZSM-12, Catalysis Letters, 1995, vol. 33, pp. 387-394.
Tuel, A., Synthesis, characterization, and catalytic properties of the new TiZSM-12 zeolite, 1995, vol. 15, pp. 236-242.
Castaneda, R. et al., Synthesis of a New Zeolite Structure ITQ-24, with intersecting 10- and 12-Membered Ring Pores, J.Am.Chem.Soc. 2003, vol. 125, No. 26, pp. 7820-7821.
C.Y. Chen et al, From Borosilcate to Gallo- and Aluminosilicate Zeolites: New Methods for Lattice Substitution via Post-Synthetic Treatment, Chevron Research and Technology Co.
Peng Wu et al, A Novel Titanosilicate with MWW Structure. I. Hydrothermal Synthesis, Elimination of Extraframework Titanium, and Characterizations, J. Phys. Chem. B 2001, 105, pp. 2897-2905 (2001).
A Novel Titanosilicate with MWW Structure: II. Catalytic Properties in the Selective Oxidation of Alkenes, Journal of Catalysis 202, pp. 245-255 (2001).
Canós Avelino Corma
García Fernando Rey
Sánchez Rafael Castañeda
Seguí Vicente Fornés
Brunsman David M
Consejo Superior de Investigaciones Cientificas
Klauber & Jackson L.L.C.
Universidad Politecnica de Valencia
LandOfFree
Porous crystalline material (zeolite ITQ-24), preparation... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Porous crystalline material (zeolite ITQ-24), preparation..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Porous crystalline material (zeolite ITQ-24), preparation... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3919171