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3545results about "Crystalline aluminosilicate zeolites" patented technology
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Electronic atomization cigarette
ActiveUS7832410B2Reduce cancer riskTobacco preparationNervous disorderVapor–liquid separatorEngineering
The invention relates to an electronic atomization cigarette which only contains nicotine without harmful tar. The electronic atomization cigarette includes a shell and a mouthpiece. The external wall of the shell has an air inlet. An electronic circuit board, a normal pressure cavity, a sensor, a vapor-liquid separator, an atomizer, a liquid-supplying bottle are sequentially provided within the shell, wherein the electronic circuit board comprises an electronic switching circuit and a high frequency generator. A stream passage of the sensor is provided on one side of the sensor, and a negative pressure cavity is provided in the sensor. The atomizer and the liquid-supplying bottle is in contact with each other. An atomization cavity is arranged in the atomizer. A retaining ring for locking the liquid-supplying bottle is provided between one side of the liquid-supplying bottle and the shell, and an aerosol passage is provided on the other side of the liquid-supplying bottle. The air inlet, normal pressure cavity, vapor-liquid separator, atomizer, aerosol passage, gas vent and mouthpiece are sequentially interconnected.
Owner:FONTEM VENTURES
Electronic Atomization Cigarette
The present invention relates to an electronic atomization cigarette which only contains nicotine without harmful tar. The electronic atomization cigarette includes a shell and a mouthpiece. The external wall of the shell has an air inlet. An electronic circuit board, a normal pressure cavity, a sensor, a vapor-liquid separator, an atomizer, a liquid-supplying bottle are sequentially provided within the shell, wherein the electronic circuit board comprises an electronic switching circuit and a high frequency generator. A stream passage of the sensor is provided on one side of the sensor, and a negative pressure cavity is provided in the sensor. The atomizer and the liquid-supplying bottle is in contact with each other. An atomization cavity is arranged in the atomizer. A retaining ring for locking the liquid-supplying bottle is provided between one side of the liquid-supplying bottle and the shell, and an aerosol passage is provided on the other side of the liquid-supplying bottle. The air inlet, normal pressure cavity, vapor-liquid separator, atomizer, aerosol passage, gas vent and mouthpiece are sequentially interconnected. The advantages of the present invention include smoking without tar, significantly reducing the cancerogenic risk. Furthermore, users still feel as if they are smoking and experiencing the same excitement, and the cigarette is no need to be lit and is no fire risk.
Owner:FONTEM VENTURES
Electronic atomization cigarette
ActiveUS20110168194A1Reduce cancer riskRespiratorsNervous disorderVapor–liquid separatorAerosol spray
The present invention relates to an electronic atomization cigarette which only contains nicotine without harmful tar. The electronic atomization cigarette includes a shell and a mouthpiece. The external wall of the shell has an air inlet. An electronic circuit board, a normal pressure cavity, a sensor, a vapor-liquid separator, an atomizer, a liquid-supplying bottle are sequentially provided within the shell, wherein the electronic circuit board comprises an electronic switching circuit and a high frequency generator. A stream passage of the sensor is provided on one side of the sensor, and a negative pressure cavity is provided in the sensor. The atomizer and the liquid-supplying bottle is in contact with each other. An atomization cavity is arranged in the atomizer. A retaining ring for locking the liquid-supplying bottle is provided between one side of the liquid-supplying bottle and the shell, and an aerosol passage is provided on the other side of the liquid-supplying bottle. The air inlet, normal pressure cavity, vapor-liquid separator, atomizer, aerosol passage, gas vent and mouthpiece are sequentially interconnected. The advantages of the present invention include smoking without tar, significantly reducing the cancerogenic risk. Furthermore, users still feel as if they are smoking and experiencing the same excitement, and the cigarette is no need to be lit and is no fire risk.
Owner:FONTEM VENTURES
Preparation method of mesonic pore molecular sieve carrier material
The present invention belongs to the field of inorganic nanometer material technology, in particular, it relates to a method for preparing mesoporous molecular sieve carrier material by using diblockmacromolecular polymer. It is characterized by that under the acid condition it uses polyoxyethylene-polyoxybutylene diblock macromolecular surfactant as template agent and makes hydrothermal synthesis at 100 deg.C to prepare mesoporous silicon oxide material with two-dimensional hexagonal structure with high degree of order and large specific surface area and laminate silicon oxide material withhigh degree of order. These new material can be used as catalyst, catalyst carrier, adsorption film, organic-inorganic composite material, sensor and chromatographic packing, etc.
Owner:FUDAN UNIV
Mole cular sieve with composite structure and preparing method thereof
InactiveCN1552625AHigh activityHigh selectivityCrystalline aluminosilicate zeolitesMolecular sieveCrystallization
A composite molecular sieve with TON and MFI structures is prepared in static crystallizing condition. In the procedure of preparing gel, less crystal seeds and salt are added. The Si / Al ratio on its crystal lattice is greater than 50.
Owner:CHINA PETROLEUM & CHEM CORP +1
Olefin epoxidation catalysts
A method of synthesizing an olefin epoxidation catalyst comprises the step of treating a porous crystalline aluminosilicate material having an X-ray diffraction pattern including d-spacing maxima at 12.4+ / -0.25, 6.9+ / -0.15, 3.57+ / -0.07 and 3.42+ / -0.07 Angstrom, such as MCM-22, with a dealuminating agent under conditions effective to remove framework aluminium from the material and produce a dealuminated product. The dealuminated product is then treated with a titanium-containing material under conditions effective to insert titanium into the dealuminated product and produce a titanium-containing, dealuminated catalyst composition. The resultant catalyst is useful in the epoxidation of olefins, such as propylene and cyclohexene, with hydrogen peroxide and organic hydroperoxides.
Owner:MOBIL OIL CORP
High activity ZSM-48 and methods for dewaxing
Owner:EXXON RES & ENG CO
Mesostructured Zeolitic Materials, and Methods of Making and Using the Same
ActiveUS20070227351A1Increase productionConvenient lightingMaterial nanotechnologyCatalytic crackingSimple Organic CompoundsOrganic compound
One aspect of the present invention relates to mesostructured zeolites. The invention also relates to a method of preparing mesostructured zeolites, as well as using them as cracking catalysts for organic compounds and degradation catalysts for polymers.
Owner:MASSACHUSETTS INST OF TECH
Mesostructured zeolitic materials, and methods of making and using the same
ActiveUS20050239634A1Increase productionConvenient lightingMaterial nanotechnologyCatalytic crackingSimple Organic CompoundsOrganic compound
One aspect of the present invention relates to mesostructured zeolites. The invention also relates to a method of preparing mesostructured zeolites, as well as using them as cracking catalysts for organic compounds and degradation catalysts for polymers.
Owner:MASSACHUSETTS INST OF TECH
Methods to improve heteroatom lattice substitution in large and extra-large pore borosilicate zeolites
InactiveUS6790433B2Controlled catalytic propertyAluminium compoundsMolecular sieve catalystsIron saltsAluminosilicate
Owner:CHEVROU USA INC
Micropore mesopore composite molecular sieve and its preparation method
InactiveCN1597516AAdjustable silicon-aluminum ratioAdjustable aperture sizeCrystalline aluminosilicate zeolitesMordeniteSodium hydroxide
A composite millipore-mesopore molecular sieve is prepared through proportionally adding millipore Zeolite molecular sieve ZSM-5, beta-zeolite, mordenite, L-zeolite, MCM-22 and ZSM-35 to the solution of sodium hydroxide, stirring, adding the template agent of mesopore molecular sieve, crystallizing at 90-120 deg.C for 22-26 hr, regulating pH=7.5-7.9, and static crystallizing at 90-120 deg.c for 24-168 hr.
Owner:TAIYUAN UNIV OF TECH
Mww type zeolite substance, precursor substance therefor, and process for producing these substances
ActiveUS20050158238A1Easy to synthesizeRaise the ratioAluminium compoundsMolecular sieve catalystsCompound (substance)Silicon
A process for easily synthesizing a zeolite substance containing an element having a large ionic radius in the framework at a high ratio. This process comprises the following first to fourth steps: First Step: a step of heating a mixture containing a template compound, a compound containing a Group 13 element of the periodic table, a silicon-containing compound and water to obtain a precursor (A); Second Step: a step of acid-treating the precursor (A) obtained in the first step; Third Step: a step of heating the acid-treated precursor (A) obtained in the second step together with a mixture containing a template compound and water to obtain a precursor (B); and Fourth Step: a step of calcining the precursor (B) obtained in the third step to obtain a zeolite substance.
Owner:SHOWA DENKO KK
Microporous zirconium silicate for the treatment of hyperkalemia
ActiveUS20120213847A1Improve efficiencyLowering potassium levelBiocideHeavy metal active ingredientsSide effectPotassium ions
The present invention relates to novel microporous zirconium silicate compositions that are formulated to remove toxins, e.g. potassium ions, from the gastrointestinal tract at an elevated rate without causing undesirable side effects. The preferred formulations are designed avoid increase in pH of urine in patients and / or avoid potential entry of particles into the bloodstream of the patient. Also disclosed is a method for preparing high purity crystals of UZSi-9 exhibiting an enhanced level of potassium exchange capacity. These compositions are particularly useful in the therapeutic treatment of hyperkalemia.
Owner:ZS PHARMA
Methods for removal of water from gases using superheated zeolites
InactiveUS6110258AHigh silica-to-alumina ratioReduce metal contentGas treatmentMolecular sieve catalystsBoiling pointSilicon dioxide
A method for removing trace moisture from a gas is disclosed. The method involves heating a zeolite having a high silica-to-alumina ratio to about 400 DEG C. to remove physically absorbed water from the zeolite, followed by heating the zeolite to a temperature in excess of 650 DEG C., to form a superheated zeolite. Heating to temperatures of 650 DEG C. or above is believed to cause dehydroxylation of the zeolite. A method for the preparation of a dehydroxylated zeolite is also disclosed. The superheated zeolite is contacted with the gas, thereby adsorbing water from the gas. A dehydroxylated zeolite for removing trace moisture from a gas wherein the zeolite has a high silica-to-alumina ratio and a low level of metallic impurities is also disclosed. The zeolite and methods of the invention are particularly useful for removing trace water from acid gases such as hydrogen chloride and hydrogen bromide.
Owner:MATHESON TRI GAS INC
Inorganic material that has metal nanoparticles that are trapped in a mesostructured matrix
An inorganic material that consists of at least two elementary spherical particles, each of said spherical particles comprising metal nanoparticles that are between 1 and 300 nm in size and a mesostructured matrix with an oxide base of at least one element X that is selected from the group that consists of aluminum, titanium, tungsten, zirconium, gallium, germanium, tin, antimony, lead, vanadium, iron, manganese, hafnium, niobium, tantalum, yttrium, cerium, gadolinium, europium and neodymium is described, whereby said matrix has a pore size of between 1.5 and 30 nm and has amorphous walls with a thickness of between 1 and 30 nm, said elementary spherical particles having a maximum diameter of 10 μm. Said material can also contain zeolitic nanocrystals that are trapped within said mesostructured matrix.
Owner:INST FR DU PETROLE
Chabazite-containing molecular sieve, its synthesis and its use in the conversion of oxygenates to olefins
Owner:EXXONMOBIL CHEM PAT INC +1
Fast luminescent silicon
There are provided mesoporous silica materials containing in their pores stabilized clusters of silicon atom, of size 2 nanometers or less, and capable of photoluminescence to emit fast photons. They are prepared by chemical vapor deposition of silicon or a silicon precursor such as disilane, under soft conditions such as temperature of 100-150 DEG C., into the mesopores of silicate films which have mesoporous channels prepared by growth of the films using a template to control their sizes, but without removing the template residues from the films prior to the chemical vapor deposition. The template residues serve to limit the size of the silicon clusters which conform. The use of the soft conditions on CVD retains the template residues in an intact, substantially unchanged form. The resultant films have clusters of silicon, of 2 nanometer size or less, anchored to the mesopores, and air stable, so that they can be used in optoelectronic devices in conjunction with standard silicon semiconductors.
Owner:THE GOVERNINIG COUNCIL OF THE UNIV OF TORANTO
Treatment of CHA-type molecular sieves and their use in the conversion of oxygenates to olefins
A method is disclosed of treating a crystalline material comprising a CHA framework-type molecular sieve, wherein said crystalline material has a composition and involving the molar relationship:(n)X2O3:YO2,where X is a trivalent element, Y is a tetravalent element, and n is less than 0.07, and wherein the crystalline material does not comprise a silicoaluminophosphate, is substantially free of framework phosphorus, or both. The method can comprise treating the crystalline material with steam under conditions such that the prime olefin selectivity of the treated material in an oxygenate conversion process is greater than the prime olefin selectivity of the untreated material in the same process.
Owner:EXXONMOBIL CHEM PAT INC
Synthesis of chabazite-containing molecular sieves and their use in the conversion of oxygenates to olefins
The synthesis of a crystalline material, in particular, a high silica zeolite, comprising a chabazite-type framework molecular sieve is conducted in the presence of an organic directing agent having the formula: [R1R2R3N—R4]+Q−wherein R1 and R2 are independently selected from hydrocarbyl groups and hydroxy-substituted hydrocarbyl groups having from 1 to 3 carbon atoms, provided that R1 and R2 may be joined to form a nitrogen-containing heterocyclic structure, R3 is an alkyl group having 2 to 4 carbon atoms and R4 is selected from a 4- to 8-membered cycloalkyl group, optionally, substituted by 1 to 3 alkyl groups each having from 1 to 3 carbon atoms; and a 4- to 8-membered heterocyclic group having from 1 to 3 heteroatoms, said heterocyclic group being, optionally, substituted by 1 to 3 alkyl groups each having from 1 to 3 carbon atoms and the or each heteroatom in said heterocyclic group being selected from the group consisting of O, N, and S, or R3 and R4 are hydrocarbyl groups having from 1 to 3 carbon atoms joined to form a nitrogen-containing heterocyclic structure; and Q− is a anion.
Owner:EXXONMOBIL CHEM PAT INC
Inorganic material that has metal nanoparticles that are trapped in a mesostructured matrix
An inorganic material that consists of at least two elementary spherical particles, each of said spherical particles comprising metal nanoparticles that are between 1 and 300 nm in size and a mesostructured matrix with an oxide base of at least one element X that is selected from the group that consists of aluminum, titanium, tungsten, zirconium, gallium, germanium, tin, antimony, lead, vanadium, iron, manganese, hafnium, niobium, tantalum, yttrium, cerium, gadolinium, europium and neodymium is described, whereby said matrix has a pore size of between 1.5 and 30 nm and has amorphous walls with a thickness of between 1 and 30 nm, said elementary spherical particles having a maximum diameter of 10 μm. Said material can also contain zeolitic nanocrystals that are trapped within said mesostructured matrix.
Owner:INST FR DU PETROLE
Preparation of Molecular Sieves Using a Structure Directing Agent and An N, N, N-Triakyl Benzyl Quaternary Ammonium Cation
Crystalline molecular sieves are prepared using a mixture comprising an organic structure directing agent capable of forming the molecular-sieve and an N,N,N-trialkyl benzyl quaternary ammonium cation.
Owner:CHEVROU USA INC
Method for recycling molecular sieve mother solution
InactiveCN102190312AReduce dosageConserve waterMolecular sieve catalystsCrystalline aluminosilicate zeolitesMolecular sieveSeed crystal
The invention discloses a method for recycling molecular sieve crystallization mother solution, which comprises the following steps of: (1) preparing a material for synthesizing a molecular sieve, gelatinizing, crystallizing, filtering, and collecting all molecular sieve crystallization mother solution; (2) using the obtained all molecular sieve crystallization mother solution for synthesis of the molecular sieve directly, mixing with a solid silicon source, an aluminum source and alkali, and adding or not adding molecular sieve seed crystals and a template agent to obtain a reaction mixture; and (3) crystallizing the obtained reaction mixture according to the conventional hydrothermal method, obtaining a filter cake, namely a molecular sieve product, and filtering and collecting all molecular sieve crystallization mother solution, wherein the obtained all molecular sieve crystallization mother solution can be circularly utilized according to the sequence of steps (2) and (3). In the synthesis of the molecular sieve, alkaline waste liquor is not discharged basically, the total silicon utilization rate is more than or equal to 90 percent, and the yield of the molecular sieve product is over 90 percent.
Owner:EAST CHINA NORMAL UNIV
Selective catalyst for aromatics conversion
Owner:UOP LLC
Methods for removal of impurity metals from gases using low metal zeolites
InactiveUS6395070B1High silica-to-alumina ratioReduce metal contentGas treatmentMolecular sieve catalystsBoiling pointTrace metal
A method for removing trace moisture from a gas is disclosed. The method involves heating a zeolite having a high silica-to-alumina ratio to about 400° C. to remove physically adsorbed water from the zeolite, followed by heating the zeolite to a temperature in excess of 650° C., to form a superheated zeolite. The superheated zeolite is contacted with the gas, thereby adsorbing water from the gas. A dehydroxylated zeolite for removing trace moisture from a gas wherein the zeolite has a high silica-to-alumina ratio and a low level of metallic impurities is also disclosed. A method for removing metallic impurities from a gas using the low metals zeolite is also disclosed. The zeolites and methods of the invention are particularly useful for removing trace water and trace metal impurities from acid gases such as hydrogen chloride and hydrogen bromide.
Owner:MATHESON TRI GAS INC
Preparation method for Beta zeolite molecular sieve with hierarchical porous structure
InactiveCN102826564APlay a structurally oriented roleThe synthesis steps are simpleCrystalline aluminosilicate zeolitesMolecular sieveActive agent
The invention discloses a preparation method for a Beta zeolite molecular sieve with a hierarchical porous structure. Ethyl orthosilicate is used as a silicon source, sodium metaaluminate is used as an aluminum source, hexaammonio cationic quaternary ammonium surfactant is used as a template, and then the hierarchical porous zeolite molecular sieve containing meso pores and Beta zeolite micropores is prepared by using a hydro-thermal synthesis process under an alkaline condition. According to the invention, the hexaammonio cationic quaternary ammonium surfactant is used as a Beta zeolite structure guiding agent and generates micropores, aggregation of hydrophobic long-chain alkyl groups on the surfactant forms the meso pores, so the prepared Beta zeolite molecular sieve has both meso pores and the crystalline micropores. The structure with both the meso pores and the micropores enables defects of a single pore structure to be avoided and mass transfer efficiency to be improved, and the Beta zeolite molecular sieve has a wide application prospect in aspects of macro-molecular catalysis, adsorption, separation, etc.
Owner:SOUTH CHINA UNIV OF TECH
Copper CHA Zeolinte Catalysts
ActiveUS20080226545A1Reduce decreaseImproved NH SCRCombination devicesAluminium compoundsCrystal structureReaction temperature
Zeolite catalysts and systems and methods for preparing and using zeolite catalysts having the CHA crystal structure are disclosed. The catalysts can be used to remove nitrogen oxides from a gaseous medium across a broad temperature range and exhibit hydrothermal stable at high reaction temperatures. The zeolite catalysts include a zeolite carrier having a silica to alumina ratio from about 15:1 to about 256:1 and a copper to alumina ratio from about 0.25:1 to about 1:1.
Owner:BASF CORP
Separation of hydrogen from hydrocarbons utilizing zeolitic imidazolate framework materials
The present invention relates to the selective separation of hydrogen (“H2”) hydrocarbons in streams containing both hydrogen and hydrocarbons (e.g. methane, ethylene, ethane, propylene, propane, etc.) utilizing a zeolitic imidazolate framework (“ZIF”) material. Preferably, the stream to be separated is fed to the present process in a substantially gaseous phase. In preferred embodiments, the current invention is utilized in either a pressure swing adsorption process, a temperature swing adsorption process, or a membrane separations process to separate hydrogen from hydrocarbons present in hydrogen production streams or petrochemical / petroleum refining product streams and intermediate streams.
Owner:EXXON RES & ENG CO
Synthesis of molecular sieves having the chabazite framework type and their use in the conversion of oxygenates to olefins
The synthesis of a crystalline aluminophosphate or silicoaluminophosphate molecular sieve having a chabazite-type framework type is conducted in the presence of an organic directing agent having the formula (I) [R1R2R3N—R4]+X− (I) wherein R1, R2 and R3 are independently selected from the group consisting of alkyl groups having from 1 to 3 carbon atoms and hydroxyalkyl groups having from 1 to 3 carbon atoms; R4 is selected from the group consisting of 4- to 8-membered cycloalkyl groups, optionally substituted by 1 to 3 alkyl groups having from 1 to 3 carbon atoms; 4- to 8-membered heterocyclic groups having from 1 to 3 heteroatoms, said heterocyclic groups being optionally substituted by 1 to 3 alkyl groups having from 1 to 3 carbon atoms and the heteroatoms in said heterocyclic groups being selected from the group consisting of O, N, and S; and aromatic groups optionally substituted by 1 to 3 alkyl groups, said alkyl groups having from 1 to 3 carbon atoms; and X− is an anion.
Owner:EXXONMOBIL CHEM PAT INC
Method for preparing molecular sieve
ActiveCN103787352AFull residence timeFull contact timeCrystalline aluminosilicate zeolitesMolecular sieveGas phase
The invention relates to a method for preparing a molecular sieve, which comprises the following steps: the molecular sieve is introduced in a gas phase ultra-stable reactor, the gas phase ultra-stable reactor is capable of moving the molecular sieve from the molecular sieve inlet of the gas phase ultra-stable reactor to the molecular sieve outlet of the gas phase ultra-stable reactor under the condition that carrying gas is not used for conveying, and the molecular sieve and gas-phase silicon tetrachloride are contacted for reacting in the gas phase ultra-stable reactor. The conveying of the molecular sieve does not require inertia carrying gas, the technology flow is simplified, carrying gas amount is saved, and the consumption of silicon tetrachloride can be greatly reduced.
Owner:CHINA PETROLEUM & CHEM CORP +1
Synthesis method of titanium silicalite TS-1
ActiveCN102320619ASuppress generationLow costCrystalline aluminosilicate zeolitesMolecular sieveDepolymerization
The invention belongs to the field of preparation of molecular sieve material, and discloses a synthesis method of a titanium silicalite TS-1. The method is characterized by comprising the following steps of: preparing a titanium-silicon gel with a silicon source, a titanium source, a template agent, an alkaline mineralizing agent and water according to certain proportion, and introducing right amount of alkali metal salt in the gel preparation process through a direction method or an indirection method; then, executing hydrothermal crystallization at 160-180 DEG C; and obtaining the titanium silicalite TS-1 after filtering, washing, drying and roasting. With the synthesis method provided by the invention, depolymerization of the silicon source can be promoted in the gel preparation process, so that titanium can enter into a skeleton smoothly and generation of amorphous six-coordinate non-skeleton titanium can be restrained. Based on the action of alkaline metal ions and an acid site of the molecular sieve non-skeleton titanium, the acid site of the cheap titanium silicalite TS-1 is removed, and selectivity of propylene epoxide is greatly improved while taking the titanium silicalite TS-1 as the catalyst for the propylene epoxidation.
Owner:DALIAN UNIV OF TECH
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