Chemistry of inorganic compounds – Phosphorus or compound thereof – Oxygen containing
Reexamination Certificate
2011-03-29
2011-03-29
Le, H. (Holly) T (Department: 1788)
Chemistry of inorganic compounds
Phosphorus or compound thereof
Oxygen containing
C423S328100, C423S328200, C423S306000, C423S600000, C502S214000, C502S238000
Reexamination Certificate
active
07914760
ABSTRACT:
A silicoaluminophosphate molecular sieve is disclosed that comprises first and second intergrown phases of a CHA framework type and an AEI framework type, wherein said first intergrown phase has an AEI/CHA ratio of from about 5/95 to about 40/60 as determined by DIFFaX analysis, the second intergrown phase has an AEI/CHA ratio of about 30/70 to about as determined by DIFFaX analysis and said molecular sieve has a silica to alumina molar ratio (Si/Al2) from about 0.13 to about 0.24.
REFERENCES:
patent: 4440871 (1984-04-01), Lok et al.
patent: 5279810 (1994-01-01), Calabro
patent: 5609843 (1997-03-01), Wendelbo
patent: 6090289 (2000-07-01), Verduijn et al.
patent: 6334994 (2002-01-01), Wendelbo et al.
patent: 6812372 (2004-11-01), Janssen et al.
patent: 6906232 (2005-06-01), Levin et al.
patent: 6953767 (2005-10-01), Janssen et al.
patent: 7011810 (2006-03-01), Dakka et al.
patent: 7253331 (2007-08-01), Martens et al.
patent: 7271123 (2007-09-01), Chang et al.
patent: 7301065 (2007-11-01), Vaughn et al.
patent: 7622624 (2009-11-01), Mertens et al.
patent: 2002/0165089 (2002-11-01), Janssen et al.
patent: 2004/0064008 (2004-04-01), Maurer et al.
patent: 2005/0096214 (2005-05-01), Janssen et al.
patent: 2005/0233895 (2005-10-01), Mertens et al.
patent: 2006/0079397 (2006-04-01), Mertens et al.
patent: 2006/0079723 (2006-04-01), Mertens et al.
patent: 03/040037 (2003-05-01), None
J. Chen et al., “SAPO-18 Catalysts and their Bronsted Acid Sites”, Journal of Physical Chemistry, vol. 98, pp. 10216-10224 (1994).
J. Chen et al., “Silicoaluminophosphate Number Eighteen (SAPO-18): A New Microporous Solid Acid Catalyst”, Catalysis Letters, vol. 28, pp. 241-248 (1994).
A.M. Prakash et al., “Synthesis of SAPO-34: High Silicon Incorporation in the Presence of Morpholine as Template” Journal of the Chemical Society, Faraday Transactions, vol. 90 (15), pp. 2291-2296 (1994).
Yan Xu et al., “The Synthesis of SAPO-34 and CoSAPO-34 from a Triethylamine-Hydrofluoric Acid-Water System”, Journal of the Chemical Society, Faraday Transactions, vol. 86(2), pp. 425-429 (1990).
Breck, D.W., “The Synthetic Zeolites.” in:Zeolite Molecular Sieves(New York, Tarrytown, 1974), pp. 245-284.
J. Chen et al., “Understanding the Bronsted Acidity of SAPO-5, SAPO-17, SAPO-18 and SAPO-34 and their Catalytic Performance for Methanol Conversion to Hydrocarbons”, Studies in Surface Science and Catalysis, vol. 84, pp. 1731-1738, (1994).
O.B. Vistad, et al., “Identification of a Key Precursor Phase for Synthesis of SAPO-34 and Kinetics of Formation Investigated by In Situ X-Ray Diffraction”, J. Phys. Chem. B.,2001, 105, pp. 12437-12447 (2001).
N.J. Tapp et al., “Synthesis of AIPO4-11”, Zeolites, May 1988, vol. 18, pp. 183-188.
M.M.J. Tracey et al., “A General Recursion Method for Calculating Diffracted Intensities from Crystals Containing Planar Faults”, Proceedings of the Royal Chemical Society, London, A (1991), vol. 433, pp. 499-520.
Chang Yun Feng
Clem Kenneth Ray
Janssen Marcel J.
Martens Luc R. M.
Mertens Machteld M.
ExxonMobil Chemical Patents Inc.
Faulkner Kevin M.
Le H. (Holly) T
LandOfFree
Crystalline intergrowth material of silicoaluminophosphate... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Crystalline intergrowth material of silicoaluminophosphate..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Crystalline intergrowth material of silicoaluminophosphate... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2684788