Class / Patent application number | Description | Number of patent applications / Date published |
502263000 | Of Group III or lanthanide group (i.e., Sc, Y, Al, Ga, In, Tl, or atomic number 57 to 71 inclusive) | 19 |
20080293564 | MULLITE BODIES AND METHODS OF FORMING MULLITE BODIES - A method of forming a porous mullite composition of acicular mullite grains having improved properties is described, where the mullite is formed at some time in the presence of a fluorine containing gas. For example, it has been discovered that improved properties may result from heating the mullite to a high temperature in an atmosphere selected from the group consisting of water vapor, oxygen, an inert gas or mixtures thereof or forming the mullite composition from precursors having an Al/Si ratio of at most 2.95. | 11-27-2008 |
20090023581 | THERMALLY STABLE DOPED AND UNDOPED POROUS ALUMINUM OXIDES AND NANOCOMPOSITE CeO2-ZrO2 AND Al2O3 CONTAINING MIXED OXIDES - The present invention relates to doped or undoped aluminas having after calcination at 1200° C. for 5-24 hours a pore volume ≧0.5 ml/g and a BET surface area greater then 35 m | 01-22-2009 |
20090062115 | AMORPHOUS SILICA-ALUMINA COMPOSITION AND A METHOD OF MAKING AND USING SUCH COMPOSITION - Described is a novel amorphous silica-alumina composition having a high ratio of pore volume contained in large pores to pore volume contained in medium to small pores. The amorphous silica-alumina composition also may have the characteristic of a strong aluminum-NMR penta-coordinated peak representing greater than 30% of the total aluminum and a method of making such novel amorphous silica-alumina composition using a pH swing preparation method. | 03-05-2009 |
20090131249 | Catalyst Carrier and Exhaust Gas Purification Catalyst - A catalyst carrier and exhaust gas purification catalyst superior in sintering inhibiting effect of precious metal catalyst particles are provided, that is, a catalyst carrier for carrying a precious metal comprised of a composite oxide of an electron accepting element (La) having an electron accepting property of accepting electrons from a precious metal element by approach or contact with the precious metal element (Pt) and not changing in atomic valence in an oxidation reduction reaction and of another element (Si) and, further, an exhaust gas purification catalyst comprised of this catalyst carrier on which precious metal catalyst particles are carried. | 05-21-2009 |
20100152033 | AMORPHOUS SILICA-ALUMINA COMPOSITION AND A METHOD OF MAKING AND USING SUCH COMPOSITION - Described is a novel amorphous silica-alumina composition having a high ratio of pore volume contained in large pores to pore volume contained in medium to small pores. The amorphous silica-alumina composition also may have the characteristic of a strong aluminum-NMR penta-coordinated peak representing greater than 30% of the total aluminum and a method of making such novel amorphous silica-alumina composition using a pH swing preparation method. | 06-17-2010 |
20100273646 | PURIFYING CATALYST - A purifying catalyst includes catalyst powder composed of a transition metal oxide of which an average particle diameter is within 1 nm to 2 μm and in which an electron binding energy of oxygen is shifted to an energy side lower than 531.3 eV. The purifying catalyst shows good purification performance even when noble metal is not contained as an essential component. | 10-28-2010 |
20110003682 | METHODS AND FORMULATIONS FOR ENHANCING NH3 ADSORPTION CAPACITY OF SELECTIVE CATALYTIC REDUCTION CATALYSTS - A method of providing an automobile exhaust catalyst composition. The method includes acidifying a support composition with a conjugate base oxide of an inorganic acid having a Ka to obtain an acidified support exhaust catalyst composition. The support composition includes a combination of a cerium-containing oxide compound and non-cerium-containing compound selected from the group consisting of alkali metal containing compounds, alkaline-earth metal containing compounds and combinations thereof. | 01-06-2011 |
20110053764 | POROUS ALUMINUM MATERIAL HAVING IMPROVED BENDING STRENGTH AND PRODUCTION METHOD THEREFOR - The present invention provides a porous aluminum material composed of a sintered body having an improved bending strength, and a production method therefor, wherein the sintered body comprises an aluminum alloy having an Si content of 100 to 3,000 ppm. | 03-03-2011 |
20120122670 | Sulfur tolerant alumina catalyst support - The present invention is directed to a method for making a sulfur tolerant alumina, that includes the steps of: forming aluminum hydrate from one or more water soluble aluminum salts, said salts each comprising an aluminum cation or aluminum anion and an oppositely charged counterion, in an aqueous medium, contacting the aluminum hydrate with a silica precursor in the aqueous medium and in the presence of counterions of the one or more aluminum salts, isolating silica precursor-contacted aluminum hydrate particles from the aqueous medium, and calcining the silica precursor-contacted aluminum hydrate particles to form particles of the sulfur tolerant alumina. | 05-17-2012 |
20120122671 | Alumina catalyst support - The present invention is directed to a high surface area, high pore volume porous alumina, comprising: aluminum oxide, optionally, silicon oxide and aluminosilicates, and optionally one or more dopants, said alumina having a specific surface area of from about 100 to about 500 square meters per gram and a total pore volume after calcination at 900° C. for 2 hours of greater than or equal to 1.2 cubic centimeters per gram, wherein less than or equal to 15% of the total pore volume is contributed by pores having a diameter of less than 10 nm. | 05-17-2012 |
20120129688 | LARGE-PORE PERIODIC MESOPOROUS QUARTZ - Provided herein are methods of synthesizing large-pore periodic mesoporous quartz. Using the methods herein, large-pore periodic mesoporous quartz has been synthesized at a lower pressure and a temperature than in any previous mesoporous crystalline method, yielding a unique mesoporous article having crystalline pore walls. For example, the methods involve modified nanocasting methods using a mesoporous starting material comprising silica, carbon as a an infiltrating pore filler, followed by application of pressure and heat sufficient to crystallize silica in the infiltrated starting material to form a mesoporous crystalline article having crystalline pore walls therein, and useful in many applications, including as a catalyst. | 05-24-2012 |
20120302438 | COMPLEX OXIDE, METHOD FOR PRODUCING SAME AND EXHAUST GAS PURIFYING CATALYST - Disclosed are a composite oxide which is capable of maintaining a large specific surface area even used in a high temperature environment, and which has excellent heat resistance and reducibility, as well as a method for producing the composite oxide and a catalyst for exhaust gas purification employing the composite oxide. The composite oxide contains cerium and at least one of rare earth metal elements other than cerium and including yttrium, at amass ratio of 85:15 to 99:1 in terms oxides, and further containing silicon at more than 0 parts by mass and not more than 20 parts by mass in terms of SiO | 11-29-2012 |
20120309614 | COMPLEX OXIDE, METHOD FOR PRODUCING SAME, AND EXHAUST GAS PURIFYING CATALYST - Disclosed are a composite oxide which is capable of maintaining a large volume of pores even used in a high temperature environment, and which has excellent heat resistance and catalytic activity, as well as a method for producing the composite oxide and a catalyst for exhaust gas purification employing the composite oxide. The composite oxide contains cerium and at least one element selected from aluminum, silicon, or rare earth metals other than cerium and including yttrium, at a mass ratio of 85:15 to 99:1 in terms oxides, and has a property of exhibiting a not less than 0.30 cm | 12-06-2012 |
20120316059 | COMPLEX OXIDE, METHOD FOR PRODUCING SAME AND EXHAUST GAS PURIFYING CATALYST - Disclosed are a silicon-containing cerium composite oxide which is capable of maintaining a large specific surface area even used in a high temperature environment, and which has excellent heat resistance and reducibility, as well as a method for producing the composite oxide and a catalyst for exhaust gas purification employing the composite oxide. The composite oxide contains 2 to 20 mass-% silicon in terms of SiO | 12-13-2012 |
20130324392 | Porous Alumina Material, Process for Producing Same, and Catalyst - Provided is a production method for a porous alumina material, comprising the steps of: mixing an alkoxysilane solution that comprises an alkoxysilane, a mixed solvent comprising water and an alcohol, and an inorganic acid, with an aluminum solution comprising an aluminum compound and water, to prepare a mixed solution in which the aluminum compound and the alkoxysilane are dissolved in the mixed solvent; co-precipitating aluminum hydroxide with a silicon compound in the mixed solution, to form a precipitate; and baking the precipitate to form a porous alumina material comprising aluminum oxide and silicon oxide. | 12-05-2013 |
20140057781 | SINTER RESISTANT CATALYTIC MATERIAL AND PROCESS OF PRODUCING THE SAME - A catalytic material including particles formed of a catalytic core material having a thermally resistant porous shell coated over the catalytic core material. An oxygen storage material is dispersed within the thermally resistant porous shell. In an example, the oxygen storage material is ceria. The catalytic material can further include a catalytic support, wherein the particles are deposited on the catalytic support. The catalytic support can be a powdered oxide including a material selected from the group consisting of alumina, silica, zirconia, niobia, ceria, titania, and combinations thereof. The catalytic core can include an element selected from the group consisting of Pt, Pd, Rh, Co, Ni, Mn, Cu, Fe, Au, Ag, and combinations thereof. The porous shell can be selected from materials consisting of alumina, baria, ceria, magnesia, niobia, silica, titania, yttria, and combinations thereof. | 02-27-2014 |
20140179515 | COMPLEX OXIDE, METHOD FOR PRODUCING SAME, AND EXHAUST GAS PURIFICATION CATALYST - Provided are: a complex oxide that exhibits high redox ability even at low temperatures, has excellent heat resistance, and stably retains these characteristics even on repeated oxidation and reduction at high temperature; a method for producing the same; and an exhaust gas purification catalyst. The inventive complex oxide contains more than 0 but no more than 20 parts by mass of Si, calculated as SiO | 06-26-2014 |
20140371058 | Catalyst Structure for Treating Exhaust Gas - Provided is a novel catalyst structure capable of maintaining gas diffusivity to a deep part of a catalyst layer even under condition of a high gas flow rate. Proposed is a catalyst structure, which has a porous apatite catalyst layer containing an oxide (hereinafter referred to as “apatite”) whose crystalline structure belongs to an apatite type, and in which, in logarithmic differentiation void volume distribution measured by a mercury intrusion porosimeter, a peak top is present within a void volume diameter range of 100 nm to 1000 nm. | 12-18-2014 |
20150336083 | Porous Alumina Material, Process for Producing Same, and Catalyst - Provided is a production method for a porous alumina material, comprising the steps of: mixing an alkoxysilane solution that comprises an alkoxysilane, a mixed solvent comprising water and an alcohol, and an inorganic acid, with an aluminum solution comprising an aluminum compound and water, to prepare a mixed solution in which the aluminum compound and the alkoxysilane are dissolved in the mixed solvent; co-precipitating aluminum hydroxide with a silicon compound in the mixed solution, to form a precipitate; and baking the precipitate to form a porous alumina material comprising aluminum oxide and silicon oxide. | 11-26-2015 |