Catalyst – solid sorbent – or support therefor: product or process – In form of a membrane
Patent
1997-01-21
2000-03-28
Straub, Gary P.
Catalyst, solid sorbent, or support therefor: product or process
In form of a membrane
502 60, 502 63, 502 64, 423 89, 423 99, 423111, 4231181, B01J 2028, B01J 2904, B01J 2906, C01G 1700
Patent
active
060431776
ABSTRACT:
A process for modifying surfaces of zeolites and molecular sieve membranes to decrease effective pore size for separation of materials includes atomic layer controlled vapor or liquid deposition. The atomic layer controlled deposition process steps include (i) exposing the surface to a metal atom coordinated with ligand groups having bonds that are hydrolyzable to form molecular bonded structures on the surface, which structures comprise the metal atoms coordinated with the ligand group or a modified ligand group and then (ii) hydrolyzing the bonds and possibly, but not necessarily, cross-linking the bonds in the ligand or modified ligand group.
REFERENCES:
patent: 3837500 (1974-09-01), Nicolas et al.
patent: 4699892 (1987-10-01), Suzuki
patent: 5464798 (1995-11-01), Jia et al.
patent: 5474681 (1995-12-01), Fehlner et al.
patent: 5591345 (1997-01-01), Engelen et al.
patent: 5716527 (1998-02-01), Deckman et al.
patent: 5753121 (1998-05-01), Geus et al.
patent: 5770275 (1998-06-01), Raman et al.
patent: 5789024 (1998-08-01), Levy et al.
"Separation of Hydrocarbon Isomer Vapors with Silicalite Zeolite Membranes," Funke, Kovalchick, Falconer, and Noble, Ind. Eng. Chem. Res., 35:1575-1582 (1996).
"Permeation of Aromatic Hydrocarbon Vapors Through Silicate-Zeolite Membranes," Baertsch, Funke, Falconer, and Noble, J. Phys. Chem., 100:7676-7679 (1996).
"Atomic Layer Growth of SiO.sub.2 on Si(100) Using SiCl.sub.4 and H.sub.2 O in a Binary Reaction Sequence," Sneh, Wise, Ott, Okada, and George, Surface Science, 334:135-152 (1995).
"A Defect-Free Mordenite Membrane Synthesized by Vapour-Phase Transport Method," Nishiyama, Ueyama, and Matsukata, J. Chem. Soc., Chem. Commun., 1967-1968 (1995)
"Preparation of Zeolite ZSM-5 Membranes by In-Situ Crystallization on Porous .alpha.-Al.sub.2 O.sub.3," Yan, Davis, and Gavalas, Ind. Eng. Chem. Res., 34:1652-1661 (1995).
"Improvement of the Pervaporation Performance of Silicalite Membranes by Modification With a Silane Coupling Reagent," Sano, Hasegawa, Ejiri, Kawakami, and Yanagishita, Elsevier Science B.V., Microporous Materials, 5:179-184 (1995).
"Zeolite ZSM-5 Membranes Grown on Porous .alpha.-Al.sub.2 O.sub.3, " Yan, Tsapatsis, Gavalas, and Davis, J. Chem. Soc., Chem. Commun., 227-228 (1995).
"Zeolite-in-Metal Membranes: Preparation and Testing," KOlsch, Venzke, Noack, Toussaint, and Caro, J. Chem. Soc., Chem. Commun., 2491-2492 (1994).
"Potentials of Silicalite Membranes for the Separation of Alcohol/Water Mixtures," Sano, Hasegawa, Kawakami, Kiyozumi, Yanagishita, Kitamoto, and Mizukami, Studies in Surface Science and Catalysis, Elsevier Science B.V., 84:1175-1182 (1994).
"Formation and Characterization of Zeolite and Membranes from Sols," Xiang and Ma, Third International Conference on Inorganic Membranes, Worcester, MA, Jul. 10-14, 1994.
"Surface Chemistry of Al.sub.2 O.sub.3 Deposition Using Al(CH.sub.3).sub.3 and H.sub.2 O in a Binary Reaction Sequence," Dillon, Ott, George, and Way, Surface Science, Elsevier Science B.V., 1-13 (1994).
"Single and Multi-Component Transport Through Metal-Supported MFI Zeolite Membranes," Bakker, Zheng, Kapteijn, Makkee, Moulijn, Precision Process Technology, 425-436 (1993).
"Ceramic-Zeolite Composite Membranes and Their Application for Separation of Vapor/Gas Mixtures," Jia, Chen, Noble, and Falconer, Journal of Membrane Science, 90:1-10 (1994).
"Doorbraak in ontwikkeling zeolietmembranen," Bakker, Kapteijn, Jansen, Bekkum, and Moulijn, Process Technologie, 7-16 (Dec. 1993).
"Synthesis and Characterization of a Pure Zeolitic Membrane," Tsikoyiannis and Haag, Zeolites, 12:126-130 (1992).
"High-Temperature Stainless Steel Supported Zeolite (MFI) Membranes: Preparation, Module Construction, and Permeation Experiments," Geus, van Bekkum, Bakker, and Moulijn, Microporous Materials, 1:131-147 (1993).
"Porous Crystal Membranes," Barrer, J. Chem. Soc. Faraday Trans., 86(7):1123-1130 (1990).
"Fine Control of the Pore-Opening Size of Zeolite ZSM-5 by Chemical Vapor Deposition of Silicon Methoxide," Niwa, Kato, Hattori, and Murakami, J. Phys. Chem., 90:6233-6237 (1986).
"Fine Control of the Pore-Opening Size of Zeolite Modenite by Chemical Vapour Deposition of Silicon Alkoxide," Niwa, Kato, Hattori, and Murakami, J. Chem. Soc. Faraday Trans., 80:3135-3145 (1984).
"Silicalite, a New Hydrophobic Crystalline Silica Molecular Sieve," Flanigen, Bennett, Grose, Cohen, Patton, and Kirchner, Nature Vol., 271:512-516 (1978).
Falconer John L.
Funke Hans H.
George Steven M.
Klaus Jason W.
Noble Richard D.
Nguyen Cam N.
Straub Gary P.
University Technology Corporation
Young James R.
LandOfFree
Modification of zeolite or molecular sieve membranes using atomi does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Modification of zeolite or molecular sieve membranes using atomi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modification of zeolite or molecular sieve membranes using atomi will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1325901