Entries |
Document | Title | Date |
20080226545 | Copper CHA Zeolinte Catalysts - 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. | 09-18-2008 |
20080241060 | NOVEL MICROPOROUS CRYSTALLINE MATERIAL COMPRISING A MOLECULAR SIEVE OR ZEOLITE HAVING AN 8-RING PORE OPENING STRUCTURE AND METHODS OF MAKING AND USING SAME - There is disclosed a hydrothermally stable microporous crystalline material comprising a molecular sieve or zeolite having an 8-ring pore opening structure, such as SAPO-34 or aluminosilicate zeolite, able to retain a specific percentage of its surface area and micropore volume after treatment with heat and moisture, such as at least 80% of its surface area and micropore volume after exposure to temperatures of up to 900° C. in the presence of up to 10 volume percent water vapor for a time ranging from 1 to 16 hours. Methods of using the disclosed crystalline material, such as in the SCR of NO | 10-02-2008 |
20080299037 | Method for Purifying Germanium Hydrides - An improved method for purifying gaseous mixtures of germanium hydrides and hydrogen is disclosed. In one aspect, the crude gas is contacted with a cold caustic solution to reduce levels of carbon dioxide and water. The partially purified gas is chilled in direct-contact with a hydrogen refrigerant to induce homogenous condensation of water impurity. Liquid and ice particles formed by lower temperatures are removed across an aerosol phase separating medium to produce a cooled and partially purified gas mixture which is further dried and de-carbonated across a zeolitic molecular sieve adsorbent to achieve very low concentrations of moisture and carbon dioxide in the bulk gas. In one aspect, the purified gas mixture obtained is partially liquefied, phase-separated and distilled to obtain germanium hydride, digermanium hexahydride and hydrogen gas as products. A portion of the hydrogen product can be compressed, chilled and re-used as a direct-contact refrigerant in the purification process. | 12-04-2008 |
20090110631 | Methods of recovery of pore-forming agents for mesostructured materials - The invention provides methods of recovering a pore-forming agent from an inorganic material that defines a plurality of mesopores having a controlled cross sectional area to form a mesostructure having long-range crystallinity and also to methods of making one or more mesostructures that features removal, recovery, and/or reuse of the pore-forming agent. Suitable pore-forming agents include, for example, surfactants. | 04-30-2009 |
20090246122 | Methods for preparing composites of substrate-molecular sieve - The present invention relates to a method for preparing composites of substrate-molecular sieve, which comprises applying a physical pressure to molecular sieve crystals against a substrate to form a chemical bond between the molecular sieve crystal and the substrate. The present invention requiring no solvents, reactors and other equipments enables molecular sieve crystals to be stably attached to the surface of substrates through various chemical bonds, particularly ionic present invention ensures the synthesis of substrate-molecular sieve composites with enhanced attachment rate, degree of lateral close packing (DCP) and attachment strength in more time-saving method works well for molecular sieve crystals with lager sizes (e.g., more than 3 μm) with no generation of parasitic crystals. Furthermore, the present invention shows excellent applicability to large substrates, enabling the mass production of substrate-molecular sieve composites. | 10-01-2009 |
20090257948 | Synthesis of Zeolites from Fly Ash - A process with fusion pre-treatment for synthesizing geopolymers and zeolites from fly ash, in particular X-type zeolites with pores of large dimensions and high capacity that utilize sea water and low incubation temperatures. Fly ash is initially mixed with NaOH to obtain a mixture, which is pulverized and then melted at the temperature of 550° C. After cooling, the melted mass is pulverized dispersed in sea water with fixed ratios and left under stirring at ambient temperature for 12 hours. The incubation of the ground material in sea water takes place at a temperature of between 25 and 70 degrees centigrade. Once the incubation period is ended, the solid part is separated from the liquid phase (sea water) through centrifugation and subsequently rinsed and oven dried. | 10-15-2009 |
20100086479 | Method for Removal of Heavy Metals - The invention relates to a method for removing heavy metal ions from the lattice of tectosilicates or phyllosilicates, especially from zeolite mineral, particularly clinoptilolite, by exchanging ions with calcium ions. According to the inventive method, the zeolite rock is brought in contact with hydrocholoric [sic] and ammonium-containing solutions in a chain of exchange reactors such that a large part of the cations of the lattice are replaced with ammonium ions, and the ammonium ions located in the lattice are replaced with calcium in a basic calcium hydroxide solution. The ammonium or ammonia used in the process is conducted in the circuit by binding the same in hydrochloric acid as an ammonium ion from the exchange solutions by conveying anhydrous ammonia and can be fed back to the exchange solution. The ions from the lattice that are exchanged are essentially precipitated as phosphate, carbonate, or hydroxide. | 04-08-2010 |
20100111827 | PRODUCTION PROCESS FOR NOx ADSORPTION MATERIAL AND NOx ADSORPTION MATERIAL - A zeolite is impregnated with a ferric chloride aqueous solution; and thereafter it is heated at 500° C.-700° C. in an atmosphere that is free from moisture, thereby subjecting Fe to ion exchange. By means of heating it in an atmosphere that is free from moisture, it is possible to produce an NO | 05-06-2010 |
20100196261 | PROCESS FOR SYNTHESIS OF ATO MOLECULAR SIEVE FRAMEWORK - The present invention relates to a process for the synthesis of ATO molecular sieve framework comprising forming a reaction medium comprising of reactive sources Al | 08-05-2010 |
20100209339 | SILICON-TITANIUM MIXED OXIDE POWDER, DISPERSION THEREOF AND TITANIUM-CONTAINING ZEOLITE PREPARED THEREFROM - Pyrogenic silicon-titanium mixed oxide powder having • a BET surface area of 200 to 400 m | 08-19-2010 |
20100260663 | CARBON DIOXIDE FIXATION TO CARBONATES - A high efficiency method or process is provided for converting CO | 10-14-2010 |
20100266489 | REMOVAL OF FOREIGN METALS FROM INORGANIC SILANES - The invention relates to a method for the treatment of a composition containing inorganic silanes and at least one foreign metal and/or a compound containing a foreign metal, wherein the composition is brought in contact with at least one adsorption agent, and for obtaining the composition, in which the content of foreign metal and/or of a compound containing a foreign metal is reduced, and to a corresponding composition having a reduced foreign metal content, and further to the use of organic resins, activated carbons, silicates, and/or zeolites for the reduction of foreign metals and/or compounds containing foreign metals in compositions of inorganic silanes. | 10-21-2010 |
20100278723 | ZEOLITE Y - Process for preparing a modified zeolite Y which process comprises subjecting zeolite Y having a silica to alumina molar ratio of at least 10 to calcination at a temperature of from 700 to 1000° C. wherein (i) the steam partial pressure is at most 0.06 bar at a temperature of from 700 to 800° C., (ii) the steam partial pressure is at most 0.08 bar at a temperature of from 800 to 850° C. , (iii) the steam partial pressure is at least 0.03 bar at a temperature of from 850 to 900° C., and (iv) the steam partial pressure is at least 0.05 bar at a temperature of from 900 to 950° C. and (v) the steam partial pressure is at least 0.07 bar at a temperature of from 950 to 1000° C., a modified zeolite Y obtainable by such process, zeolite Y having a silica to alumina molar ratio of at least 10, the infrared spectrum of which has a peak at 3700 cm | 11-04-2010 |
20100297002 | CRYSTALLIZED SILICON-CONTAINING MATERIAL WITH HIERARCHICAL AND ORGANIZED POROSITY - Material with hierarchical and organized porosity in the microporosity and mesoporosity domains, consisting of at least two elementary spherical particles, each one of said particles comprising a matrix based on silicon oxide, mesostructured, having a mesopore diameter ranging between 1.5 and 30 nm and exhibiting microporous and crystallized walls of thickness ranging between 1 and 60 nm, said elementary spherical particles having a maximum diameter of 200 microns. The preparation of said material is also described. | 11-25-2010 |
20100329975 | Cordierite-Forming Compositions With Hydratable Alumina And Methods Therefor - A cordierite batch composition that includes a hydratable alumina, as defined herein. The hydratable alumina, when hydrated, can provide additional strength to shaped batch compositions at temperatures below those used to fire the compositions. Methods are also provided for forming cordierite ceramic articles from the cordierite batch compositions. | 12-30-2010 |
20110033374 | CATALYSED FILTER - A wall-flow filter monolith substrate having a porosity of at least 40% formed from a selective catalytic reduction (SCR) catalyst of extruded type. | 02-10-2011 |
20110171120 | PROCESS FOR PREPARING A DISPERSION COMPRISING TITANIUM-SILICON MIXED OXIDE - Process for preparing an aqueous dispersion which has a pH of 9 to 14 and comprises particles of a pyrogenic titanium-silicon mixed oxide powder having a proportion of silicon dioxide of 75 to 99.99% by weight and of titanium dioxide of 0.01 to 25% by weight, whose mean aggregate diameter in the dispersion is not more than 200 nm, and at least one basic, quaternary ammonium compound. | 07-14-2011 |
20110176992 | Preparation of X Zeolite - A method is disclosed for preparing crystalline aluminosilicate X zeolite from a reaction mixture containing only sufficient water to produce X zeolite. In one embodiment, the reaction mixture is self-supporting and may be shaped if desired. In the method, the reaction mixture is heated at crystallization conditions and in the absence of an added external liquid phase, so that excess liquid need not be removed from the crystallized product prior to drying the crystals. | 07-21-2011 |
20110200522 | BIMETALLIC CATALYST FOR NOX REDUCTION IN ENGINE EXHAUST - A catalyst made by the introduction of copper ions and cobalt ions into a Y-type zeolite to produce a CuCoY zeolite improves the reduction of NOx in exhaust from a lean burn engine, such as a diesel engine. A dual bed selective reduction reactor in the exhaust stream comprising a first bed of BaY or of Ag/alumina and a second bed of CuCoY is particularly effective in reduction of NOx. In one embodiment, the exhaust stream is suitably treated with an oxidant, such as ozone, and a reductant, such as a diesel hydrocarbon or oxygenated diesel hydrocarbon, before the exhaust passes in contact with the dual bed catalyst. | 08-18-2011 |
20110212020 | Zeolites with uniform intracrystal textural pores - Zeolites with uniform intracrystal textural pores between 1 and 10 nm are described. Intracrystal pores, an alumina source and a silica source are reacted in the presence of a silane modified polymer as a porogen and the reaction product is calcined to form the zeolite. The zeolites are useful in catalytic reactions and adsorption processes. | 09-01-2011 |
20110250127 | TRANSITION METAL/ZEOLITE SCR CATALYSTS - A method of converting nitrogen oxides in a gas to nitrogen by contacting the nitrogen oxides with a nitrogenous reducing agent in the presence of a zeolite catalyst containing at least one transition metal, wherein the zeolite is a small pore zeolite containing a maximum ring size of eight tetrahedral atoms, wherein the at least one transition metal is selected from the group consisting of Cr, Mn, Fe, Co, Ce, Ni, Cu, Zn, Ga, Mo, Ru, Rh, Pd, Ag, In, Sn, Re, Ir and Pt. | 10-13-2011 |
20110286914 | NOVEL METAL-CONTAINING ZEOLITE BETA FOR NOx REDUCTION AND METHODS OF MAKING THE SAME - There is disclosed an organic-free, metal-containing zeolite Beta with a silica-to-alumina ratio (SAR) ranging from 5 and 20, and a metal content of at least 0.5 wt. %. There is also disclosed a method of making such a zeolite Beta without organic structure directing agent (SDA). The metal, which may comprise Fe or Cu, can be found in amounts ranging from 1-10 wt. %. A method of selective catalytic reduction of nitrogen oxides in exhaust gases using the disclosed zeolite is also disclosed. | 11-24-2011 |
20120014865 | Copper Containing ZSM-34, OFF And/Or ERI Zeolitic Material For Selective Reduction Of NOx - Described is a copper containing ZSM-34, OFF and/or ERI zeolitic material having a silica to alumina mole ratio ranging from about 4 to about 50 and a copper content, reported as CuO, ranging from about 1 to about 10 wt.-%, based on the total weight of the calcined zeolitic material, and having an alkali metal content, reported as metal oxide, ranging from about 1.5 to about 12 wt.-%. | 01-19-2012 |
20120014866 | Copper Containing ZSM-34, OFF And/Or ERI Zeolitic Material For Selective Reduction Of NOx - Described is a copper containing ZSM-34, OFF and/or ERI zeolitic material having a silica to alumina mole ratio ranging from about 4 to about 50 and a copper content, reported as CuO, ranging from about 1 to about 10 wt.-%, based on the total weight of the calcined zeolitic material, and having an alkali metal content, reported as the metal oxide, ranging from about 0.7 to about 1.5 wt.-%, wherein the 750° C.-aged copper containing ZSM-34, OFF and/or ERI zeolitic material exhibits NO conversion at 200° C. of at least about 75% and at 450° C. of at least about 90%, measured at a gas hourly volume based space velocity of 30000 h | 01-19-2012 |
20120014867 | Copper Containing ZSM-34, OFF And/Or ERI Zeolitic Material For Selective Reduction Of NOx - Described is a copper containing ZSM-34, OFF and/or ERI zeolitic material having a silica to alumina mole ratio ranging from about 4 to about 50 and a copper content, reported as CuO, ranging from about 1 to about 10 wt.-%, based on the total weight of the calcined zeolitic material, and having an alkali metal content, reported as the metal oxide, of less than about 0.7 wt.-%. | 01-19-2012 |
20120020875 | CATALYST FOR REDUCING NITROGEN OXIDES AND METHOD FOR PRODUCING THE SAME - The object is to provide an exhaust gas reduction catalyst that exhibit high nitrogen oxide reduction performance, and to provide a simple and efficient method for producing the catalyst, in which the amount of the waste liquid is reduced, further, an object of the invention is to provide a zeolite-containing catalyst for reducing nitrogen oxides, which does not use an expensive noble metal or the like and which has high nitrogen oxide reduction performance. The present invention relates to a catalyst for reducing nitrogen oxides, which comprises: zeolite at least containing an aluminium atom and a phosphorus atom in the framework thereof; and a metal supported on the zeolite, wherein a coefficient of variation of intensity of the metal is at least 20%, when performing an elemental mapping of the metal in the catalyst with an electron probe microanalyzer, and, a catalyst for reducing nitrogen oxides, which comprises the zeolite containing at least a silicon atom, a phosphorus atom and an aluminium atom, and having an adsorption retention rate of at least 80% in a water vapor cyclic adsorption/desorption test at 90° C. | 01-26-2012 |
20120100066 | PROCESSES FOR MAKING NANO ZEOLITES AND FOR RECOVERY OF NANO ZEOLITES FROM AN AQUEOUS SUSPENSION - Embodiments of a process for recovery of nano zeolites from an aqueous suspension are provided. The process comprises the steps of applying centrifugal force to the aqueous suspension to separate a supernatant phase from a solid phase that comprises the nano zeolites and residuals. The solid phase is contacted with a solution effective to dissolve or digest the residuals and to agglomerate the nano zeolites forming agglomerated nano zeolites. The solution is filtered to recover the agglomerated nano zeolites. | 04-26-2012 |
20120114552 | METHOD FOR PREPARING MOLECULAR SIEVES - A method for synthesizing a molecular sieve comprising providing a reaction mixture sufficient to synthesize the molecular sieve, maintaining the reaction mixture under crystallization conditions, monitoring at least one viscometric parameter of the reaction mixture, and determining an endpoint based on the monitoring of the at least one viscometric parameter. | 05-10-2012 |
20120134916 | HIGH-TEMPERATURE SCR CATALYST - A catalyst comprising: (a) a microporous crystalline molecular sieve comprising at least silicon, aluminium and phosphorous and having an 8-ring pore size; and (b) a transition metal loaded in the molecular sieve, the transition metal loading is less than about 1 wt %. | 05-31-2012 |
20120141370 | HIGHLY HYDROTHERMAL-RESISTANT SCR CATALYST AND MANUFACTURING METHOD THEREFOR - An SCR catalyst including iron-containing β-type zeolite has high NO | 06-07-2012 |
20120213695 | MODIFIED MOLECULAR SIEVE CHARACTERIZED BY IMPROVED SODIUM-RESISTING CONTAMINATION ACTIVITY AND PREPARATION METHOD THEREOF - Modified molecular sieve characterized by improved sodium-resisting contamination activity and preparation method thereof are provided. The method comprises: adding molecular sieve in phosphorus-containing organic solution, and reacting for 10-200 minutes at temperature of 70-200° C. and pressure of 0.2-1.2 MPa, and then filtering, drying and calcining. The said modified molecular sieve contains 90-99 wt. % molecular sieve as dry basis and 1-10 wt. % phosphorus as oxide. The said method can improve the capability of sodium-resisting contamination effectively, and its technology is simple and fits the existing catalyst production apparatus and process. The said modified molecular sieve has high sodium-resisting contamination activity, and the model catalyst by sodium contamination has high activity retention. | 08-23-2012 |
20120275993 | DEHYDROXYLATION PRETREATMENT OF INORGANIC MATERIALS IN MESOPORE INTRODUCTION PROCESS - Mesoporous compositions and methods for preparing mesoporous and/or mesostructured materials from inorganic materials are provided. Various embodiments described herein relate to the preparation of mesoporous and/or mesostructured zeolites via a dehydroxylation pretreatment followed by a mesopore introduction step. | 11-01-2012 |
20120275994 | DOUBLE-COMPONENT MODIFIED MOLECULAR SIEVE WITH IMPROVED HYDROTHERMAL STABILITY AND PRODUCTION METHOD THEREOF - A method for producing double-component modified molecular sieve comprises adding molecular sieve to an aqueous solution containing phosphorus to form a mixture, allowing the mixture to react at pH of 1-10, temperature of 70-200° C. and pressure of 0.2-1.2 MPa for 10-200 min, and then filtering, drying and baking the resultant to obtain phosphorus-modified molecular sieve, and then adding the phosphorus-modified molecular sieve to an aqueous solution containing silver ions, allowing the phosphorus-modified molecular sieve to react with silver ions at 0-100° C. in dark condition for 30-150 min, and then filtering, drying and baking. The obtained double-component modified molecular sieve contains 88-99 wt % molecular sieve with a ratio of silica to alumina between 15 and 60, 0.5-10 wt % phosphorus (based on oxides) and 0.01-2 wt % silver (based on oxides), all based on dry matter. A catalyst produced from the double-component modified molecular sieve has improved hydrothermal stability and microactivity. | 11-01-2012 |
20130078181 | METHOD FOR PREPARING LTA-TYPE ZEOLITES USING A NOVEL STRUCTURE DIRECTING AGENT - This disclosure relates to LTA-type zeolites which are synthesized using tris[2-(isopropylamino)ethyl]amine as a structure directing agent. | 03-28-2013 |
20130089494 | COPPER-CONTAINING KFI-TYPE ZEOLITE AND USE IN SCR CATALYSIS - The present invention relates to a copper-containing KFI-type zeolite, wherein the zeolite contains 1 to 4.5 wt.-% copper. The invention is also directed towards a method for producing the copper-containing zeolite according to the invention as well as towards the use of the zeolite in SCR catalysis. Further subjects of the invention are a washcoat which contains the zeolite according to the invention, an SCR catalyst which contains the zeolite according to the invention as well as an exhaust-gas cleaning system which comprises the SCR catalyst. | 04-11-2013 |
20130108544 | SCR CATALYSTS PREPARATION METHODS | 05-02-2013 |
20130115162 | EXTRA MESOPOROUS Y ZEOLITE - This invention relates to the composition and synthesis of an Extra Mesoporous Y (or “EMY”) zeolite and its use in the catalytic conversion of organic compounds. In particular, this invention relates to a Y-type framework zeolite possessing a high large mesopore pore volume to small mesopore pore volume ratio. The novel zeolite obtained provides beneficial structural features for use in petroleum refining and petrochemical processes. | 05-09-2013 |
20130121911 | PELLETIZED MOLECULAR SIEVES AND METHOD OF MAKING MOLECULAR SIEVES - A shaped body formed of a crystalline molecular sieve powder is disclosed. The shaped body may be formed of crystalline metal-organic framework (MOF). The shaped body is formed with no reduction in sorption capacity or accessible surface area compared to the initial crystalline molecular sieve powder. | 05-16-2013 |
20130149235 | Synthesis Method For ETS-10 Titanosilicate Molecular Sieve - The present invention relates to a synthesis method for ETS-10 titanosilicate molecular sieves. The method comprises the steps of mixing a titanium oxide hydrosol, a silicon source, a sodium hydroxide, a fluorine-containing mineralizer and a water to give a gel and adjusting the pH thereof to 10.4 to 10.8; and hydrothermal crystallizing the gel at 170 to 250° C. for 10 to 100 hours to obtain the ETS-10 titanosilicate molecular sieves. In the synthesis method for ETS-10 titanosilicate molecular sieves provided by the present invention, a titanium oxide hydrosol is used as the titanium source to synthesize the ETS-10 titanosilicate molecular sieves, and the problem that conventional soluble titanium salt-based titanium sources tend to hydrolyze and the problem of poor dispersibility for the titanium source system of insoluble titanium oxide are therefore prevented. The ETS-10 titanosilicate molecular sieves synthesized has high purity and high crystallinity. | 06-13-2013 |
20130183229 | INTRODUCTION OF MESOPOROSITY INTO INORGANIC MATERIALS IN THE PRESENCE OF A NON-IONIC SURFACTANT - Compositions and methods for introducing mesoporosity into inorganic materials in the presence of a non-ionic surfactant are disclosed herein. Mesopores can be introduced into inorganic materials, such as zeolites, by treating the inorganic materials with a non-ionic surfactant. The resulting mesoporous inorganic materials can have a total 20 to 135 Å diameter mesopore volume of at least 0.05 cc/g and a crystalline content of at least 20 weight percent as measured by X-ray diffraction. | 07-18-2013 |
20130202523 | PROCESS FOR PREPARATION OF ZEOLITIC MATERIAL - The present invention relates to a process for process for the preparation of a zeolitic material which process comprises (i) providing a boron-containing zeolitic material and (ii) deboronating the boron-containing zeolitic material by treating the boron-containing zeolitic material with a liquid solvent system thereby obtaining a deboronated zeolitic material, which liquid solvent system does not contain an inorganic or organic acid, or a salt thereof. | 08-08-2013 |
20130251627 | High Throughput Process for Manufacturing Molecular Sieves - A method of crystallizing a crystalline molecular sieve having a pore size in the range of from about 2 to about 19 Å, said method comprising the steps of (a) providing a mixture comprising at least one source of ions of tetravalent element (Y), at least one hydroxide source (OH | 09-26-2013 |
20130323163 | METHOD FOR PRODUCING TITANO-(SILICO)-ALUMINO-PHOSPHATE - The invention relates to a method for producing titano-(silico)-alumino-phosphate, a catalyst shaped body which contains titano-(silico)-alumino-phosphate, a washcoat containing titano-(silico)-alumino-phosphate, the use of the washcoat to produce a catalyst by coating a support body, and to the use of titano-(silico)-alumino-phosphate or of the catalyst shaped body to produce a catalyst. | 12-05-2013 |
20140050659 | METHODS OF CONTROLLING POLYMORPHISM IN ORGANIC-FREE SYNTHESIS OF NA-ZEOLITES AND ZEOLITE CRYSTALS FORMED THEREFROM - Methods of controlling crystal polymorphism in organic-free synthesis of Na-Zeolites and the zeolite crystals formed using those methods are provided. The methods disclosed herein create certain types of zeolite crystals more efficiently than other previously known methods. The methods also create certain types of zeolite crystals in a form and concentration not previously disclosed. The methods disclosed herein generally comprise using solutions with varying ratios of silicon (Si), aluminum (Al), hydroxide (OH), and water. Some implementations of the invention disclosed include efficient methods of producing nearly pure cancrinite (CAN), methods of obtaining sodalite in solutions with a high Si/Al ratio, and a method of forming thin, platelet-like ANA crystals with a width of less than about 1 μm and a length of at least about 3 μm. | 02-20-2014 |
20140056804 | PHARMACEUTICAL COMPOUND WHICH INCLUDES CLINOPTILOLITE - This invention is for a compound for treating a human or animal body to relieve the symptoms of any one of chemical-, substance-, and medicine induced gastrointestinal tract irritation, the compound including clinoptilolite. The invention is also for a compound for treating a human or animal body to lower the incidences of gastic events in persons using non-steroidal, anti-inflammatory medications, the compound including clinoptilolite. | 02-27-2014 |
20140072508 | Method for Transforming Nitrogen-Containing Compounds - The invention relates to a method for the selective catalytic transformation of nitrogen-containing compounds. The transformation relates to the selective catalytic reduction (SCR) of nitrogen oxides, or the selective catalytic oxidation (SCO) of nitrogen hydrides and nitrogen-containing organic compounds, preferably in waste gas flows of combustion processes with motors and without motors and industrial applications. The catalytic converter comprises a titano-(silico)-alumo-phosphate. | 03-13-2014 |
20140120034 | Zeolite Catalyst for Converting Oxygen-Containing Compound into Hydrocarbon - A catalyst is provided for converting oxygen-containing hydrocarbon into gasoline. The catalyst is made of an ammonium-ion zeolite. The oxygen-containing hydrocarbon is dehydrated with the catalyst to be converted into gasoline. The pH value of the catalyst is changed by a heat process. The catalyst which is carbon-deposited is reactivated through oxidation. Thus, life time of the catalyst is prolonged for the conversion. | 05-01-2014 |
20140193327 | LOW PHOSPHORUS CHABAZITES - A catalyst composition is provided having a CHA crystal structure; about 0.5 to about 5.0 mol % phosphorus; and SiO | 07-10-2014 |
20140193328 | SILICOALUMINOPHOSHPHATE MOLECULAR SIEVE AND METHOD OF PRODUCING SAME - A method of producing a silicoaluminophosphate molecular sieve includes:
| 07-10-2014 |
20140234206 | Process For The Direct Synthesis Of Cu Containing Zeolites Having CHA Structure - A process for the preparation of a copper containing zeolitic material having CHA framework structure and a composition comprising the molar ratio (n YO | 08-21-2014 |
20140255297 | ULTRASONIC SYNTHESIS OF ZEOLITES FROM FLY ASH - A method for the preparation of zeolites from non-fused fly ash includes the steps of preparing an aqueous alkali hydroxyl solution and mixing the solution with the non-fused fly ash to create an aqueous alkali hydroxyl fly ash mixture, subjecting the mixture to ultrasonication and recovering the zeolites. The method may include the step of centrifuging the aqueous alkali hydroxyl fly ash mixture and washing the solid synthetic products (zeolites). | 09-11-2014 |
20140286857 | METHODS OF PREPARING METAL CONTAINING INORGANIC ION EXCHANGERS - A method of preparing a metal containing inorganic ion exchanger in an electrochemical cell is disclosed. In one embodiment, the method comprises: (a) adding the inorganic ion exchanger to the electrochemical cell, wherein the electrochemical cell comprises a conductive electrolyte solution having a liquid phase and a solid phase; (b) depositing metal ions electrochemically into the liquid phase; (c) allowing the metal ions to deposit onto the inorganic ion exchanger during an electrochemical reaction to obtain a metal containing inorganic ion exchanger; (d) collecting the solid phase comprising the metal containing inorganic ion exchanger obtained in step (c); (e) removing remaining metal ions from the liquid phase; and (f) obtaining a substantially metal free liquid phase. | 09-25-2014 |
20150030532 | ANTIMICROBIAL MATERIAL COMPRISING A METAL ION CHARGED ON SYNTHESIZED ZEOLITE - The present invention relates to development of paint, plaster, cement and plastic construction materials containing silver, zinc and copper metal ion-charged zeolite ( 1/10 w/w). The new construction materials are antimicrobial and prevent microorganism growth and reproduction of fungi, yeasts and bacteria. The product, made from construction materials containing metallic ion-exchanged zeolite, provides hygiene by preventing microbial contamination in areas and surfaces for a long time. Furthermore, lifespan of the materials produced with this technology is longer since they will be protected from biological deterioration, corrosion and decays. | 01-29-2015 |
20150071851 | 8-Ring Small Pore Molecular Sieve As High Temperature SCR Catalyst - Described is a selective catalytic reduction catalyst comprising an iron-promoted 8-ring small pore molecular sieve. Systems and methods for using these iron-promoted 8-ring small molecular sieves as catalysts in a variety of processes such as abating pollutants in exhaust gases and conversion processes are also described. | 03-12-2015 |
20150078989 | ZEOLITE CATALYST CONTAINING METALS - Provided is catalyst material useful for the selective catalytic reduction of NOx in lean burn exhaust gas, wherein the catalyst material is a hydrothermally stable, low SAR aluminosilicate zeolite loaded with a synergistic combination of one or more transition metals, such as copper, and one or more alkali or alkaline earth metals, such as calcium or potassium. | 03-19-2015 |
20150118147 | NOVEL OXIDE MATERIALS AND SYNTHESIS BY FLUORIDE/CHLORIDE ANION PROMOTED EXFOLIATION - The present invention is directed to the synthesis of novel delaminated layered zeolite precursor materials prepared by fluoride/chloride anion-promoted exfoliation. The method comprises, for example, using a combination of fluoride and chloride anions at a mild pH in aqueous solution to affect delamination of a layered zeolite precursor. The method can also comprise using a combination of fluoride and chloride anions in a non-aqueous solution comprising an organic solvent. The method may be used in conjunction with either acidification or sonication, or both. The resulting delaminated zeolite precursors are then isolated. Precursors that are then isolated lack amorphous silica content. The UCB- | 04-30-2015 |
20150132215 | Process For The Preparation Of Zeolites Having CHA Structure - The present invention relates to a process for the preparation of zeolites having CHA framework structure and a composition comprising the molar ratio (n SiO | 05-14-2015 |
20150139897 | Copper CHA Zeolite Catalysts - 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. | 05-21-2015 |
20150139898 | METHOD FOR PRODUCING HIGH SILICA ZEOLITE USING RECOVERED SILICA FILTRATE, AND HIGH SILICA ZEOLITE PRODUCED ACCORDING TO SAID METHOD - Provided are a method of manufacturing a high silica zeolite using a recovered silica filtrate, and a high silica zeolite manufactured according to the method. To this end, the present invention provides the method of manufacturing the high silica zeolite using the recovered silica filtrate, including manufacturing a solated agglomerated silica from the silica filtrate including a metal salt (step 1); filtering and washing the solated agglomerated silica of step 1 to manufacture a silica cake from which the metal salt is removed (step 2); peptizing the silica cake to manufacture a silica sol (step 3); and manufacturing the high silica zeolite using the silica sol manufactured in step 3 as a silica source (step 4). Further, the present invention provides a high silica zeolite manufactured from a recovered silica filtrate through the manufacturing method and having a Si/Al mole ratio of 5 or more. According to the present invention, it is possible to provide a process of manufacturing a high silica zeolite, in which economic feasibility, a manufacturing cost, and a manufacturing time of process steps are reduced, by reusing a recovered silica filtrate to manufacture the zeolite. | 05-21-2015 |
20150147268 | SYNTHETIC GEL FOR CRYSTAL GROWTH INDUCING ONLY SECONDARY GROWTH FROM SURFACE OF SILICALITE-1 OR ZEOLITE BETA SEED CRYSTAL - A synthetic gel for crystal growth, which induces only secondary growth from the surface of a silicalite-1 or zeolite beta seed crystal and cannot induce crystal nucleation in the synthetic gel for crystal growth or on the surface of the seed crystal. The synthetic gel contains fumed silica, tetraethylammonium hydroxide (TEAOH), [(NH | 05-28-2015 |
20150290631 | CATALYTIC CRACKING CATALYST PREPARATION METHOD - A process for preparing a catalytic cracking catalyst, which process comprises: a molecular sieve is introduced into a gas-phase ultra-stabilization reactor, the molecular sieve is moved without the conveying of carrier gas from a molecular sieve inlet of the gas-phase ultra-stabilization reactor to a molecular sieve outlet of the gas-phase ultra-stabilization reactor, and the molecular sieve is contacted and reacted with a gaseous SiCl | 10-15-2015 |
20150329368 | POST-TREATMENT OF DEBORONATED MWW ZEOLITE - A process for the post-treatment of a zeolitic material having an MWW framework structure, the process comprising (i) providing a zeolitic material having an MWW framework structure, wherein the framework structure of the zeolitic material comprises X | 11-19-2015 |
20150336091 | MOLECULAR SIEVE SSZ-95 - A new crystalline molecular sieve designated SSZ-95 is disclosed. The molecular sieve has a MTT-type framework, a mole ratio of 20 to 70 of silicon oxide to aluminum oxide, a total micropore volume of between 0.005 and 0.02 cc/g; and a H-D exchangeable acid site density of up to 50% relative to SSZ-32. | 11-26-2015 |
20150344317 | POST-TREATMENT OF DEBORONATED ZEOLITE BETA - A process for the post-treatment of a zeolitic material having a BEA framework structure, the process comprising (i) providing a zeolitic material having a BEA framework structure, wherein the framework structure of the zeolitic material comprises X | 12-03-2015 |
20150360964 | ZEOLITE COMPOSITIONS AND METHODS FOR TAILORING ZEOLITE CRYSTAL HABITS WITH GROWTH MODIFIERS - Embodiments of the invention generally provide compositions of crystalline zeolite materials with tailored crystal habits and the methods for forming such crystalline zeolite materials. The methods for forming the crystalline zeolite materials include binding one or more zeolite growth modifiers (ZGMs) to the surface of a zeolite crystal, which results in the modification of crystal growth rates along different crystallographic directions, leading to the formation of zeolites having a tailored crystal habit. The improved properties enabled by the tailored crystal habit include a minimized crystal thickness, a shortened internal diffusion pathlength, and a greater step density as compared to a zeolite having the native crystal habit prepared by traditional processes. The tailored crystal habit provides the crystalline zeolite materials with an aspect ratio of about 4 or greater and crystal surfaces having a step density of about 25 steps/μm | 12-17-2015 |
20160030932 | METAL COMPLEX AND SUPPORTED METAL COMPLEX HAVING DISILOXANE AS LIGAND, METHOD FOR PRODUCTION THEREFOF, AND SUPPORTED METAL CATALYST PREPARED BY USING THE SAME - A metal complex represented by the following Formula (1): | 02-04-2016 |
20160030933 | HYDROCARBON REFORMING/TRAPPING MATERIAL AND METHOD FOR REMOVING HYDROCARBON - To provide a hydrocarbon reforming/trapping material which is capable of adsorbing and reforming a hydrocarbon. A hydrocarbon reforming/trapping material of the present invention has an SiO | 02-04-2016 |
20160038875 | CuCHA MATERIAL FOR SCR CATALYSIS - The present invention relates to a catalyst material which is capable, at high temperatures, of converting nitrogen oxides in exhaust gas, particularly from vehicles driven by lean-running internal combustion engines, in the presence of ammonia into harmless nitrogen. | 02-11-2016 |
20160096169 | Molecular Sieve Catalyst For Treating Exhaust Gas - Provided is novel catalyst for treating NO | 04-07-2016 |
20160101985 | REMOVAL OF OCCLUDED ALKALI METAL CATIONS FROM MSE-FRAMEWORK TYPE MOLECULAR SIEVES - A method for reducing the level of occluded alkali metal cations from an MSE-framework type molecular sieve comprises either (a) contacting the molecular sieve with a solution containing ammonium ions at a temperature of at least about 50° C. to ammonium-exchange at least part of the occluded potassium ions or (b) contacting the molecular sieve with steam at a temperature of at least about 300° C. and then subjecting the steamed molecular sieve to ammonium exchange. | 04-14-2016 |
20160107119 | CATALYSTS FOR ENHANCED REDUCTION OF NOx GASES AND PROCESSES FOR MAKING AND USING SAME - Cu-exchanged zeolite catalysts with a chabazite structure containing selected concentrations of alkali ions or alkaline-earth ions and a lower concentration of (Cu) ions are described and a sequential process for making. Catalysts of the present invention reduce light-off temperatures providing enhanced low-temperature conversion of NOx gases. Catalysts of the present invention also exhibit high selectivity values compared to conventional NOx reduction catalysts. | 04-21-2016 |
20160129431 | Copper Containing Levyne Molecular Sieve For Selective Reduction Of NOx - Aspects of the present invention relates to a copper containing Levyne molecular sieve having a silica to alumina mole ratio less than 30 and a Cu:Al atomic ratio less than 0.45, wherein the Levyne molecular sieve retains at least 60% of its surface area after exposure to a temperature of from about 750° C. to about 950° C. in the present of up to 10 volume percent water vapor for a time ranging from about 1 to about 48 hours. | 05-12-2016 |
20160144347 | AEI ZEOLITE CONTAINING PHOSPHORUS AND PRODUCTION METHOD THEREFOR - Provided is AEI zeolite having a uniform acid strength of an appropriate degree. AEI zeolite comprising phosphorus, preferably AEI zeolite comprising phosphorus in the pores, and a method for producing AEI zeolite comprising a crystallization step of crystallizing a raw material mixture containing a tetraethylphosphonium cation. | 05-26-2016 |
20160167973 | PREPARATION OF MESOPOROUS ZEOLITES WITH REDUCED PROCESSING | 06-16-2016 |
20180021725 | CATALYSTS FOR ENHANCED REDUCTION OF NOx GASES AND PROCESSES FOR MAKING AND USING SAME | 01-25-2018 |
20190144291 | ZEOLITE COMPOSITIONS AND METHODS FOR TAILORING ZEOLITE CRYSTAL HABITS WITH GROWTH MODIFIERS | 05-16-2019 |