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7608554 |
Zeolite formed product, zeolite laminate intermediate, zeolite laminate composite and method for their preparation
There are provided methods for producing a zeolite layered composite, methods for producing a zeolite shaped body and methods for producing a zeolite layered intermediate body. In one aspect, there...
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7588824 |
Hydrogen cyano fullerene containing proton conducting membranes
The components of and a proton conducting membrane (PCM) produced from a host polymer and an attached or physically blended in hydrogen cyano fullerene proton-source agent, with the physical...
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7556675 |
Feed gas contaminant control in ion transport membrane systems
Ion transport membrane oxidation system comprising an enclosure having an interior and an interior surface, inlet piping having an internal surface and adapted to introduce a heated feed gas into...
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7513935 |
Mixed matrix membrane with super water washed silica containing molecular sieves and methods for making and using the same
The present invention provides a method for preparing silica containing molecular sieves which may be mixed with an organic polymer to create a mixed matrix membrane. Further, this invention...
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7510598 |
Gas separating body and method for producing same
A gas separator is provided, including a porous substrate made of a first ceramic and a gas-separating layer containing zeolite disposed on the surface of the porous substrate. The gas-separating...
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7476636 |
Method of making mixed matrix membranes using electrostatically stabilized suspensions
Mixed matrix composite (MMC) membranes with minimal macrovoids and defects are provided by the current invention. MMC Membranes are needed that have minimal macrovoids and defects, provide...
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7476635 |
Process for making supported thin zeolite membrane
Described is a process for the preparation of a supported zeolite membrane that consists of a zeolite/substrate composite layer, whose zeolite phase exhibits a crystallinity of at least 85%,...
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7442367 |
Production method for zeolite shaped body and production method for zeolite layered composite
The present invention discloses a production method for a zeolite shaped body in which a tetrapropylammonium hydroxide (TPAOH) solution and tetrapropylammonium bromide (TPABr) are added to a silica...
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7438887 |
Manganese oxide nanowires, films, and membranes and methods of making
Nanowires, films, and membranes comprising ordered porous manganese oxide-based octahedral molecular sieves, and methods of making, are disclosed. A single crystal ultra-long nanowire includes an...
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7390347 |
Zeolite membranes for selective oxidation of carbon monoxide in mixed hydrogen gas source
Methods and apparatus are taught for selectively oxidizing carbon monoxide in a source of gas containing carbon monoxide and hydrogen. A gas containing carbon monoxide and hydrogen is fed into a...
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7316794 |
Continuous production of catalyst coated membranes
A process for the production of catalyst coated membranes, especially catalyst coated membranes for use in fuel cells, that includes applying followed by drying of an electrocatalyst coating...
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7253130 |
Method for making transparent continuous zeolite film and structure of the zeolite film
A method for making transparent continuous zeolite film is provided. First a transparent precursor sol is prepared, and the precursor sol is processed to a specific concentration. The precursor...
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7252876 |
Laminated zeolite composite and method for production thereof
A laminated zeolite composite is provided, including a MFI membrane constituted by a MFI type zeolite having a SiO 2 /Al 2 O 3 (molar ratio) of 40 to 100, and a porous substrate constituted by a...
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7229537 |
Composite oxygen ion transport element
A composite oxygen ion transport element that has a layered structure formed by a dense layer to transport oxygen ions and electrons and a porous support layer to provide mechanical support. The...
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7153559 |
Ceramic-metal composite body, composite structure for transporting oxide ion, and composite body having sealing property
A sealing technique is established in which a seal can be easily formed and which is excellent in reliability and a heat cycle property in a high temperature region of 800° C. or higher, so as to...
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7109140 |
Mixed matrix membranes
Mixed matrix membranes are prepared from zeolites and polymers, such as polyimides, in a void free fashion where either no voids or voids of less than several Angstroms are present at the interface...
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7074734 |
Isomorphously substituted molecular sieve membranes
Zeolite membranes that can be used to continuously separate components of mixtures are disclosed. The zeolite membranes are prepared by isomorphous substitution, which allows systematic...
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7049259 |
Molecular sieve layers and processes for their manufacture
Layers comprising a molecular sieve layer on a porous or non-porous support, having uniform properties and allowing high flux are prepared from colloidal solutions of zeolite or other molecular...
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7041616 |
Enhanced selectivity of zeolites by controlled carbon deposition
A method for carbonizing a zeolite comprises depositing a carbon coating on the zeolite pores by flowing an inert carrier gas stream containing isoprene through a regenerated zeolite at elevated...
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7033968 |
Processes for the manufacture of supported materials
A process is described for the manufacture of a crystalline molecular sieve layer on a support, which process comprises impregnation of the support with an impregnating material prior to deposition...
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6958137 |
Preparation of composite silica membranes with thermal stability by a soaking-rolling method
The present invention relates to a method for preparing a composite silica membrane with thermal stability by a soaking-rolling method, and more particularly to a method for preparing a composite...
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6936560 |
Zeolite laminated composite and zeolite membrane reactor using the same
A zeolite laminated composite of the present invention is characterized in that it has a separation membrane being constituted by a zeolite, and a porous substrate being constituted by a zeolite...
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6872331 |
Oxide ion conductor, manufacturing method therefor, and fuel cell using the same
An oxide ion conductor is manufactured having a relatively high mechanical strength while the ionic conduction thereof is maintained at a satisfactory level. The oxide ion conductor is represented...
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6849568 |
Hydrophilic zeolite coating
A hydrophilic coating can be optionally corrosion resistant and/or microbial resistant for a substrate such as a heat exchanger. The coating is provided by a zeolite layer that can be formed from a...
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6818333 |
Thin zeolite membrane, its preparation and its use in separation
Described is a supported zeolite membrane that consists of a zeolite/substrate composite layer that exhibits, in the n-butane/isobutane separation, a permeance of n-butane of at least 6.10 −7 ...
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6734129 |
Zeolite membrane composites (LAW730)
The invention is related to a zeolite membrane composite composition comprising a first zeolite or zeolite-like layer, a second independently selected catalytic, permselective, or combined...
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6730808 |
Oxidative reactions using membranes that selectively conduct oxygen
Reactor membranes for used in oxidation reactions of hydrocarbons involving oxygen comprising a selective oxidation catalyst on a mixed conducting, oxide ion selective ceramic membrane of the...
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6693055 |
Zeolite-substrate composite comprising a patterned zeolite layer on a substrate and preparation thereof
The present invention relates to a method for the preparation of a zeolite-substrate composite comprising a patterned zeolite monolayer or multilayer on a substrate, which comprises forming a...
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6689195 |
Crystalline molecular sieve layers and processes for their manufacture
A process is described for the manufacture of crystalline molecular sieve layers with good para-xylene over meta-xylene selectivity's good para-xylene permeances and selectivities. The process...
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6667265 |
Zeolite composite film and process for producing the same
A method for producing a zeolite composite membrane in which a zeolite membrane is formed on a porous substrate includes the steps of: coating a zeolite membrane on a porous substrate made of...
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6660245 |
Methods for detemplating zeolites and silicalites for use in integrated circuit manufacture
Structure-directing agents, such as quaternary ammonium, are removed from silicalite or zeolite crystals by oxidative attack (e.g., using CO 2 , H 2 O or NH 3 ) first, by using a combination of...
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6641626 |
Mixed ionic and electronic conducting ceramic membranes for hydrocarbon processing
The invention relates to mixed phase materials for the preparation of catalytic membranes which exhibit ionic and electronic conduction and which exhibit improved mechanical strength compared to...
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6635594 |
Membrane pre-treatment process
An improved porous substrate for zeolite membranes is formed by coating the substrate with a layer of zeolite particles of a narrow particle distribution size of between 20 and 0.01 microns.
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6500233 |
Purification of p-xylene using composite mixed matrix membranes
Composite membranes capable of separating p-xylene from mixtures including p-xylene and m-xylene, and processes for purifying p-xylene using the membranes, are disclosed. The membranes are polymer...
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6492290 |
Mixed conducting membranes for syngas production
This invention presents a new class of multicomponent metallic oxides which are particularly suited toward use in fabricating components used in processes for producing syngas. The...
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6486086 |
Simplified methods of manufacturing titanium silicate membranes
A simplified method of forming a porous crystalline titanium silicate membrane comprises preforming a mass of titanium dioxide particles into a consolidated preform such as by pressing into a thin...
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6448199 |
Hydrophobic composite Pd-membrane catalyst useful for non-hazardous direct oxidation of hydrogen by oxygen to hydrogen peroxide and method of its preparation
A hydrophobic composite Pd-membrane catalyst, useful for the non-hazardous direct oxidation of hydrogen by oxygen to hydrogen peroxide, without a gas phase mixing of hydrogen and oxygen or air,...
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6440885 |
Zeolite membrane and a process for the production thereof
The present invention is directed at a supported zeolite structure comprising substantially-sintered monolithic porous ceramic substrate having coated thereon a uniformly thin, essentially...
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6432376 |
Membrane process for the production of hydrogen peroxide by non-hazardous direct oxidation of hydrogen by oxygen using a novel hydrophobic composite Pd-membrane catalyst
The above objects are achieved by providing a novel process for the production of hydrogen peroxide, by the non-hazardous direct oxidation of hydrogen by oxygen to hydrogen peroxide, without the...
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6387269 |
Membrane for separating fluids
A porous composite structure, and in particular a membrane, for separating fluids is described. The composite structure comprises at least a porous support and a zeolite layer applied to the...
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6355093 |
Two component-three dimensional catalysis
This invention relates to catalytic reactor membranes having a gas-impermeable membrane for transport of oxygen anions. The membrane has an oxidation surface and a reduction surface. The membrane...
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6346228 |
Hydrophobic multicomponent catalyst useful for direct oxidation of hydrogen to hydrogen peroxide
The present invention relates to a novel hydrophobic multicomponent catalyst useful in the direct oxidation of hydrogen to hydrogen peroxide and to a method for the preparation of such catalyst....
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6293978 |
Process for converting organic compounds using composite materials in membrane reactors
A process for converting organic compounds using composite materials in membrane reactors. The composite materials include a gas-tight ceramic, a porous metallic support, and an interfacial zone...
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6248682 |
Incorporation of zeolites into hybrid polymer matrices
A family of innovative composite zeolite materials and methods for making the same are disclosed. Zeolites 3A and 13X have been incorporated into hybrid polysiloxane polymers to form composite...
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6232253 |
Sol-gel alumina membrane for lean NOx catalysts and method of making same
A lean-NO x catalyst having a sol-gel processed membrane. The sol-gel processed membrane is loaded with a transition metal. Methods are also disclosed for loading a transition metal on the...
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6200541 |
Composite materials for membrane reactors
Composite materials of the invention, which include a gas-tight ceramic, a porous metallic support, and an interfacial zone therebetween eliminate the need for mechanical seals between two such...
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6197269 |
Method for absorbing gaseous oxidizable or reducible constituents through a membrane
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6190638 |
Molecular sieves and process for their manufacture
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6180276 |
Method for fabricating membrane and electrode assembly for polymer electrolyte membrane fuel cells
A method for fabricating an electrode and membrane assembly (MEA) for polymer electrolyte membrane fuel cells. The MEA comprises a polymer electrolyte membrane on each side of which an...
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6177373 |
Procedure for preparing molecular sieve films
The invention is comprised of a procedure for applying molecular sieve films to the surface of different substrates. This procedure is characterized in that microcrystals of the molecular sieves in...
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