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Class 423/709 - Seed used


Subclass of Class 423 - Chemistry of inorganic compounds
Definition: Processes wherein the zeolite is formed by providing a
No. of patents: 210
Last issue date: 09/20/2011


1            
NumberTitleIssue Date
8021642Crystalline composition, preparation and use
A porous crystalline composition having a molar composition as follows: YO2:m X2O3:n ZO, wherein Y is a tetravalent element selected from the group consisting of silicon, germanium, tin, titanium and combinations thereof, X is a triv...
09/20/2011
7976822Crystalline oxide material and its synthesis
Zeolites may be natural or synthetic and are inorganic crystalline aluminosilicates, with a highly regular structure of pores and channels rendering them suitable for molecular sieving, adsorption, ion exchange, dehydration, and rehydration processes for example. Th...
07/12/2011
7968079Ready-to-use seed composition and process thereof
The present disclosure provides a ready-to-use seed composition water, a source of silica, a source of alumina, and Na20, wherein the molar ratio of H20:Na20 ranges from 5 to 20, Na20:SiO2 ranges from 0.4 to 5 and SiO2:Al203 ranges from 1.3 to 5 used in t...
06/28/2011
7442365Process for preparing molecular sieve beads
A process for preparing beads of various compositions has been developed. The process involves preparing a reaction mixture of sources of framework elements of a molecular sieve. The reaction mixture can optionally contain molecular sieve seeds. Additional sources o...
10/28/2008
7399341Gas purification process
A process for the purification of hydrogen based gas mixtures utilizing zeolite X wherein the particle size distribution of the zeolite X powder has a coefficient of variation from about 15% to about 30%. ...
07/15/2008
7344697Microporous crystalline zeolite material, zeolite ITQ-28, production method thereof and use of same
The invention relates to a microporous crystalline zeolite material, zeolite ITQ-28, the production method thereof and the use of same. More specifically, the invention relates to a microporous crystalline zeolite material, ITQ-28, which, in the calcined state and i...
03/18/2008
7344695In-situ ZSM-5 synthesis
A novel method of forming ZSM-5 comprises reacting calcined kaolin microspheres with silicate and a seed solution used for forming zeolite Y under conditions of pH, temperature, and time to yield ZSM-5 crystals formed in-situ on said calcined kaolin microspheres. Th...
03/18/2008
7320782Process for preparing a layered molecular sieve composition
A process for preparing a layered composition has been developed. The composition comprises an inner core and an outer layer comprising a molecular sieve. The process involves providing a slurry comprising inner core particles and sources of the framework elements o...
01/22/2008
7309722Composition for forming porous film, porous film and method for forming the same, interlevel insulator film, and semiconductor device
The present invention provides a composition for film formation which can form a porous film that excels in dielectric properties, adhesion, film consistency and mechanical strength, and that is easily thinned; a porous film and a method for forming the same, and a ...
12/18/2007
7282082Gas separation using high-silica molecular sieve CHA
Gasses are separated using a molecular sieve having the CHA crystal structure and having a mole ratio of greater than 50 to 1500 of (1) an oxide selected from silicon oxide, germanium oxide or mixtures thereof to (2) an oxide selected from aluminum oxide, iron oxide...
10/16/2007
7268094Mixed 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 includes a method of making such a mixed matrix membrane and the membrane i...
09/11/2007
7264789Crystalline molecular sieves
A colloidal suspension of LEV structure type crystalline molecular sieve, making the suspension by washing smaller crystallites from a previously found solid LEV product, and using the suspension as seeds in further crystalline molecular sieve syntheses. ...
09/04/2007
7244409Process for producing synthetic zeolites with MFI structure
A process is described for producing synthetic zeolites useful as catalysts with a MFI structure, a Si/Al atomic ratio from about 8 to 45 to 1 and very small primary crystallites. A Si source, an Al source and an organic template are reacted with one another under h...
07/17/2007
7241375Heavy hydrocarbon composition with utility as a heavy lubricant base stock
A heavy hydrocarbon composition with utility as a heavy hydrocarbon base stock comprising at least 95 wt % paraffin molecules, of which at least 90 wt % are isoparaffin, containing hydrocarbon molecules having consecutive numbers of carbon atoms, is a liquid at 100Â...
07/10/2007
7201838Oxygenate treatment of dewaxing catalyst for greater yield of dewaxed product
Fischer-Tropsch hydrocarbon synthesis using a cobalt catalyst is used to produce waxy fuel and lubricant oil hydrocarbons from synthesis gas derived from natural gas. The waxy hydrocarbons are hydrodewaxed, with reduced conversion to lower boiling hydrocarbons, by c...
04/10/2007
7186386System for exhaust gas purification
A system for exhaust gas purification includes at least one adsorbent capable of adsorbing harmful substances such as hydrocarbons and the like in exhaust gas and at least one catalyst containing a catalyst component, capable of reducing said harmful substances, bot...
03/06/2007
7166265Process for the assembly of ultrastable mesostructured organofunctional silica compositions
A process for the preparation of mesostructured organofunctional silica and silica-alumina compositions using a hydrolyzable organosilane compound is described. The process uses a water soluble silicate to form the compositions, which have hexagonal, wormhole or foa...
01/23/2007
7157075Process for preparing MTT zeolites using nitrogen-containing organic compounds
The present invention relates to a process for preparing zeolites having the MTT framework topology defined by the connectivity of the tetrahedral atoms in the zeolite, such as zeolites SSZ-32 and ZSM-23, using certain nitrogen-containing organic compounds. ...
01/02/2007
7141232Preparation of molecular sieves involving spray drying
Molecular sieves are prepared by forming a reaction mixture slurry, spray drying the reaction mixture slurry to form particles, and heating the spray dried reaction mixture at a temperature and pressure sufficient to cause crystallization of the molecular sieve. The...
11/28/2006
7132095Method and device for manufacturing zeolite from ashes resulting from the incineration of combustible waste
To provide a substance separating/recovery method using a superconductive magnetic field that separate and recover substances efficiently, to make the ashes harmless, and to generate zeolite. The method of the present invention includes: (1) a step, wherein the ashe...
11/07/2006
7132042Production of fuels and lube oils from fischer-tropsch wax
Dewaxed fuel and lubricant base stocks are made by (a) producing a synthesis gas from natural gas, (b) reacting the H2 and CO in the gas in the presence of a cobalt Fischer-Tropsch catalyst, at reaction conditions effective to synthesize a waxy hydrocarbo...
11/07/2006
7128892Process of forming ultrastable porous aluminosilicate structures
Mesoporous hexagonal, cubic, lamellar, wormhole, or cellular foam aluminosilicates, gallosilicates and titanosilicates derived from protozeolitic seeds using an ionic structure directing agent are described. The silicon and aluminum, gallium or titanium centers in t...
10/31/2006
7112316Process for preparing molecular sieves via continuous addition of nutrients
A process for synthesizing a variety of molecular sieves has been developed. The process involves forming a reaction mixture comprising reactive sources of the framework elements plus at least one templating agent, reacting the mixture to at least partially crystall...
09/26/2006
7098166Catalyst for preparing fluorine-containing alcohol compound and a process for preparation of fluorine-containing alcohol compound
A process for preparing a fluorine-containing alcohol compound, the process comprising the step of reacting water with a halogenated fluorine compound in the presence of a catalyst for preparing a fluorine-containing alcohol compound, the catalyst obtained by suppor...
08/29/2006
7094389Chabazite-containing molecular sieve, its synthesis and its use in the conversion of oxygenates to olefins
A crystalline material substantially free of framework phosphorus and comprising a CHA framework type molecular sieve with stacking faults or at least one intergrown phase of a CHA framework type molecular sieve and an AEI framework type molecular sieve, wherein sai...
08/22/2006
7067108Chabazite-type molecular sieve, its synthesis and its use in the conversion of oxygenates to olefins
The synthesis of a crystalline material, in particular a high silica zeolite, having a chabazite-type framework is aided by the addition to the synthesis mixture of seeds of an AEI framework-type material. The chabazite-type product has a relatively small crystal si...
06/27/2006
7037871Low-temperature regeneration of zeolite L using ozone
A process is disclosed for regenerating a hydrocarbon conversion catalyst comprising zeolite L with ozone. The catalyst is contacted with ozone at a temperature of from about 20 to about 250° C. and a concentration of ozone of from about 0.1 to about 5 mol-%. The c...
05/02/2006
7025948ITQ-31 crystalline solid, and a process for its preparation
The invention concerns a crystalline solid, designated ITQ-31, which has the X ray diffraction diagram given below. Said solid has a chemical composition, expressed as the anhydrous base in terms of moles of oxide, defined by the general formula XO2: mYO
04/11/2006
7014837Process for the production of nan-sized zeolite A
Described is a process to synthesize nano-size Zeolite A from an amorphous gel precursor which can be synthesized via reaction of NaAlO2, NaOH, and tetraethoxysilane (TEOS). Zeolite A with particle sizes of ˜150 nm was made by transformation of the amorp...
03/21/2006
7011810Crystalline molecular sieves
MFS structure type zeolite manufacture is facilitated by using a second organic molecule in addition to the usual hexaethylpentane diammonium salt. ...
03/14/2006
7008610AEI-Type zeolite, its synthesis and its use in the conversion of oxygenates to olefins
A crystalline material is described that has an AEI framework type, wherein the material, in its calcined, anhydrous form, has a composition involving the molar relationship: (n)X2O3:YO2, wherein X is a tri...
03/07/2006
6977320Zeolite catalyst and use for hydrocarbon conversion
There is provided a zeolite bound zeolite catalyst which can be tailored to optimize its performance and a process for converting hydrocarbons utilizing the zeolite bound zeolite catalyst. The zeolite bound zeolite catalyst comprises a first zeolite and a binder com...
12/20/2005
6969692Process for the preparation of doped pentasil-type zeolites using a doped reactant
A process for the preparation of a metal-doped pentasil-type zeolite comprising the steps of: a) preparing an aqueous precursor mixture comprising a silicon source and an aluminum source, at least one of these sources being doped with a rare earth metal...
11/29/2005
6964934Process for the preparation of doped pentasil-type zeolite using doped seeds
The present invention relates to a process for the preparation of doped pentasil-type zeolite, which process comprises the steps of: a) preparing an aqueous precursor mixture from a silicon source, an aluminium source, and doped non-zeolitic seeds; and
11/15/2005
6958305Zeolite catalyst and use for hydrocarbon conversion
There is provided a zeolite bound zeolite catalyst which can be tailored to optimize its performance and a process for converting hydrocarbons utilizing the zeolite bound zeolite catalyst. The zeolite bound zeolite catalyst comprises a first zeolite and a binder com...
10/25/2005
6951638Process for producing synthetic zeolites with an MFI structure
A process is described for producing synthetic zeolites with a MFI structure, a Si/Al atomic ratio from roughly 8 to 45 and very small primary crystallites, a Si source, an Al source and an organic template being reacted with one another under hydrothermal condition...
10/04/2005
6942847Solid crystalline IM-9, and a process for its preparation
A zeolite crystalline solid, designated IM-9, having an X ray diffraction diagram according to FIG. 1, has a chemical composition, expressed as the anhydrous base, in terms of moles of oxides, in accordance with the formula XO2: mYO2: pZ...
09/13/2005
6936239Process for the preparation of doped pentasil-type zeolites using doped faujasite seeds
Process for the preparation of doped pentasil-type zeolite, which process comprises the steps of: a) preparing an aqueous precursor mixture comprising a silicon source, an aluminum source, doped faujasite seeds, and another type of...
08/30/2005
6933420Doped odor controlling materials
An odor controlling material and an absorbent article containing material for removing or reducing odor emanating from certain gaseous and liquid compounds in body fluid. The odor controlling material includes conventional absorbent materials such as silica, alumina...
08/23/2005
6923949Synthesis of ZSM-48 crystals with heterostructural, non ZSM-48, seeding
Pure phase, high activity ZSM-48 crystals having a SiO2/Al2O3 ratio of less than about 150/1, substantially free from ZSM-50 and Kenyaite, and fibrous morphology crystals. The crystals may further have a specific cross morphology. A ...
08/02/2005
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