Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Phosphorus or compound containing same
Reexamination Certificate
2006-07-18
2006-07-18
Wood, Elizabeth D. (Department: 1755)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Phosphorus or compound containing same
C502S062000, C502S064000, C502S071000, C502S077000, C502S085000, C502S202000, C502S208000
Reexamination Certificate
active
07078364
ABSTRACT:
In accordance with the present invention there is provided a novel catalyst system in which the catalytic structure is tailormade at the nanometer scale using the invention's novel ship-in-a-bottle synthesis techniques. The invention describes modified forms of solid catalysts for use in heterogeneous catalysis that have a microporous structure defined by nanocages. Examples include zeolites, SAPOs, and analogous materials that have the controlled pore dimensions and hydrothermal stability required for many industrial processes. The invention provides for modification of these catalysts using reagents that are small enough to pass through the windows used to access the cages. The small reagents are then reacted to form larger molecules in the cages.
REFERENCES:
patent: 3982912 (1976-09-01), Yatsurugi et al.
patent: 4414005 (1983-11-01), De Bievre et al.
patent: 4620857 (1986-11-01), Vansant et al.
patent: 5039641 (1991-08-01), Vansant et al.
patent: 5089244 (1992-02-01), Parent et al.
patent: 5206004 (1993-04-01), Park
patent: 5968242 (1999-10-01), Holderich et al.
patent: 6807535 (2004-10-01), Goodkovsky
patent: 0049936 (1982-04-01), None
Li et al.; “Light-emitting boron nitride nanoparticles encapsulated in zeolite ZSM-5”; Microporous and Mesoporous Materials, vol. 40; pp. 263-269; 2000, (no month).
Corma, A., Inorganic Solid Acids and Their Use in Acid-Catalyzed Hydrocarbon Reactions,Chemical Reviews, 1995, 95, 559-614.
Corma, A., From Microporous to Mesoporous Molecular Sieve Materials and Their Use In Catalysis,Chemical Reviews, 1997, 97, pp. 2373-2419.
VanSanten, R.A.; Kramer, G.J., Reactivity Theory of Zeolitic Bronsted Acidic Sites,Chemical Reviews, 1995, 95, pp. 637-660.
Stocker, M., Methanol-to Hydrocarbons: Catalytic Materials and Their Behavior,Microporous and Mesoporous Materials, 1999, vol. 29, pp. 3-48.
Keil, F.J., Methanol-to Hydrocarbons: Process Technology,Microporous nd Mesoprous Materials, 1999, vol. 29, pp. 49-66.
Dahl, I.M., Mostad, H.; Akporiaye, D.; Wendelbo, R. Structural and Chemical Influences on the MTO Reaction: a Comparison of Chabazite and SAPO-34 as MTO Catalysts,Microporous and Mesoporous Materials, 1999, vol. 29, pp. 185-190.
Ashtekar, S.; Chilukur, S.V.V.; Prakash, A.M..; Harendranath, C.S.; Chakrabarty, D.K., Small Pore Aluminum Phosphate Molecular-Sieves With Chabazite Structure - Incorporation of Cobalt in the Structures SAPO-34 and SAPO-44,J. Phys. Chem., 1995, vol. 99, pp. 6937-6943.
Inoue, M.; Dhupatemiya, P.; Phatanari, S.; Inui, T. Synthesis Course of the Ni-SAPO-34 Catalyst for Methanol-to-Olefin Conversion,Microporous and Mesoporous Materials, 1999, vol. 28, pp. 19-24.
Thomas, J.M.; Xu, Y.; Catlow, C.R.A.; Couves, J.W. Synthesis and Characterization of a Catalytically Active Nickel Silicoaluminophosphate Catalyst for the Conversion of Methanol to Ethene,Chem. Mater, 1991, vol. 3, pp. 667-672.
Kang, M.; Inui, T., Dynamic Reaction Characteristics Affected by Water Molecules During the Methanol to Olefin Conversion on NiAPSO-34 Catalysts, Journal of Molecular Catalysis a-Chemical, 1999, vol. 140, pp. 55-63.
Wilson, S.; Barger, P., The Characteristics of SAPO-34 Which Influence the Conversion of Methanol to Light Olefins,Microporous and Mesoporous Materials, 1999, vol. 29, pp. 117-126.
Dahl, I.M.; Kolboe, S., On the Reaction-Mechanism for Hydrocarbon Formation from Methanol Over SAPO-34 .1.Isotopic Labeling Studies of the Co-Reaction of Ethene and methanol, J. Catal., 1994, vol. 149, pp. 458-464.
Marchese, L.; Frache, A.; Gianotti, E.; Marta, G.; Causa, M.; Coluccia, S., ALPO-34 and SAPO-34, Synthesized by Using Morpholine as Templating Agent.FTIR and FT-Raman Studies of the Host-Guest and Guest-Guest Interactions Within the Zeolitic Framework,Microporous and Mesoporous Materials, 1999, vol. 30, pp. 145-153.
Prakash, A.M.; Unnikrishnan, S., Synthesis of SAPO-34 - High-Silicon Incorporation in the Presence of Morpholine as Template, Journal Chemical Society, Faraday Trans., 1994, vol. 90, pp. 2291-2296.
Haw James F.
Song Weiguo
University of Southern California
Wood Elizabeth D.
LandOfFree
Ship-in-a-bottle catalysts does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ship-in-a-bottle catalysts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ship-in-a-bottle catalysts will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3608956