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| Number | Title | Issue Date |
| 8377413 | Method for preparing mayenite-containing oxide and method for preparing electroconductive mayenite-containing oxide To provide a method for preparing a mayenite-containing oxide containing a mayenite type compound and having a hydride ion density of at least 1×1018/cm3 without need for expensive facilities, control of complicated reaction conditions or a lo... | 02/19/2013 |
| 8318129 | Hydrotalcite imparting improved thermoresistance to resins and preparation method thereof This invention relates to a partially dehydrated hydrotalcite obtained by heat-treating a hydrotalcite under a specific condition so that its weight is reduced by 1.5 to 5%, which is capable of imparting improved thermoresistance to a synthetic resin. ... | 11/27/2012 |
| 8168156 | Method of fabricating layered nanomaterial used for mid-high temperature COcapture A material is fabricated for capturing CO2 at mid-high temperature. The material is a layered material containing Ca, Al carbonates. A higher ratio of Ca to Al helps capturing CO2. The temperature for capturing CO2 is around 600° C.... | 05/01/2012 |
| 7964175 | Obtaining multimetallic oxides derived from hydrotalcite type compounds A procedure for obtaining mixed multimetallic oxides derived from hydrotalcite type compounds, characterized in that the laminar metallic hydroxides obtained are constituted by three or four metallic cations, forming part of the sheets of the hydrotalcite type mater... | 06/21/2011 |
| 7939050 | Composite article and related method A method for making a composite includes combining a strengthening agent and an aluminum compound to form a first solution; precipitating an Al(OH)3 gel from the first solution, wherein strengthening agent particles are dispersed within the gel; washing t... | 05/10/2011 |
| 7767190 | Inhibiting the formation of TCA in a Bayer causticisation process An improved process for the causticisation of Bayer liquors in an alumina refinery, the process including the steps of reacting lime with aluminate ions in a Bayer liquor within a primary reactor under controlled conditions of low to moderate temperature (between 70... | 08/03/2010 |
| 7670585 | Method for preparing electroconductive mayenite type compound Provided is a method for preparing an electroconductive mayenite type compound with good properties readily and stably at low cost without need for expensive facilities, a reaction at high temperature and for a long period of time, or complicated control of reaction... | 03/02/2010 |
| 7638112 | Method of manufacturing zinc aluminate nano-material A method for making zinc aluminate nano-material, the method comprises the following steps. Firstly, providing a growing substrate and a growing device, and the growing device comprising a heating apparatus and a reacting room. Secondly, placing the growing substrat... | 12/29/2009 |
| 7625546 | Precursor compounds of alkaline earth metal or rare earth metal aluminates method production and use thereof particularly as precursors for luminophores The invention relates to alkaline-earth or rare-earth metal aluminate precursor compounds, to their method of preparation and to their use in particular as phosphor precursors. These alkaline-earth or rare-earth metal aluminate precursor compounds are essentially cr... | 12/01/2009 |
| 7504085 | Alumina-based perovskite catalysts and catalyst supports An alumina-based perovskite is formed by mixing a lanthanide source with a transitional alumina to form a dual-phase composition comprising in-situ formed LnAlO3 dispersed in alumina. The lanthanide content of the composition ranges from 6-35 wt. % to yie... | 03/17/2009 |
| 7465433 | Method for preparing electroconductive mayenite type compound To provide a method for preparing a mayenite type compound having electroconductivity imparted. A method for preparing an electroconductive mayenite type compound, which comprises melting a raw material containing Al and at least one element selected from the... | 12/16/2008 |
| 7442846 | Process for the regeneration of catalysts for steam cracking Process for the regeneration of exhausted catalysts, containing one or more calcium aluminates, for steam cracking reactions, comprising treating said exhausted catalysts in a stream of water vapour at a temperature ranging from 700 to 950° C., preferably from 720 ... | 10/28/2008 |
| 7381394 | Method for producing perovskite-type composite oxide Methods of producing a safe and hygienic method for industrially and efficiently producing a perovskite-type composite oxide are provided that can maintain the catalytic activity of a noble metal at a high level. Methods include preparing a precursor of the perovski... | 06/03/2008 |
| 7368095 | Composite oxide for solid oxide fuel cell and method for preparation thereof The present invention provides a composite oxide for a high performance solid oxide fuel cell which can be fired at a relatively low temperature, and which has little heterogeneous phases of impurities other than the desired composition. The composite oxide is the o... | 05/06/2008 |
| 7357910 | Method for producing metal oxide nanoparticles Method for producing metal oxide nanoparticles. The method includes generating an aerosol of solid metallic microparticles, generating plasma with a plasma hot zone at a temperature sufficiently high to vaporize the microparticles into metal vapor, and directing the... | 04/15/2008 |
| 7326477 | Spinel boules, wafers, and methods for fabricating same A single crystal spinel wafer is disclosed, including a front face and a back face; and an outer periphery having first and second flats. In certain embodiments, the single crystal wafer has a specific crystallographic orientation, and the flats are provided to exte... | 02/05/2008 |
| 7326398 | Non-silica mesoporous oxide having improved pore structure periodism, method of producing the mesoporous oxide and method of crystallizing pore wall of non-silica mesoporous oxide using template to be filled in pores A method for preparation for mesoporous oxide comprising a non silica oxide having a hexagonal pore structure periodicity and an average maximum pore length of from 2 nm to 5 nm, characterized by comprising blending 0.003 mol to 0.01 mol of TaCl5, NbCl | 02/05/2008 |
| 7309480 | Catalyst for hydrogen generation through steam reforming of hydrocarbons A catalyst that can be used for the production of hydrogen from hydrocarbon fuels in steam reforming processes contains an active metal of, e.g., at least one of Ir, Pt and Pd, on a catalyst support of, e.g., at least one of monoclinic zirconia and an alkaline-earth... | 12/18/2007 |
| 7303654 | Cellulosic product and process for its production The present invention relates to a process for the production of a cellulosic product which comprises (i) providing an aqueous cellulosic suspension; (ii) adding to the suspension a clay having 3R2 stacking; and (iii) dewatering the obtained suspension. T... | 12/04/2007 |
| 7288241 | Black composite oxide particle and method for production thereof A black composite oxide particle includes a composite oxide having Fe, Mg and Al as metal components. The particle contains Fe, Mg and Al in amounts of 30 to 55 mass %, 1 to 10 mass %, and 1 to 10 mass %, respectively, and has an atomic ratio of Fe3+/Fe | 10/30/2007 |
| 7285259 | Sintering resistant catalyst material and a method for the preparation thereof Preparation of sintering resistant hexaaluminates, AAl11O18, wherein A is an alka-line earth or rare earth metal, and more particularly lanthanum, by a combination of sol-gel and microemulsion techniques using a water soluble salt of A, and a method of forming spher... | 10/23/2007 |
| 7270797 | Process for producing positive electrode active material for lithium secondary battery To provide a process for producing a lithium-cobalt composite oxide for a positive electrode of a lithium secondary battery excellent in volume capacity density, safety, charge and discharge cyclic durability, press density and productivity, by using in expensive co... | 09/18/2007 |
| 7250448 | Anionic copolymers prepared in an inverse emulsion matrix and their use in preparing cellulosic fiber compositions A papermaking method and a composition which utilize, as a drainage aid, a water-soluble anionic copolymer prepared via a water-in-oil polymerization technique that, absent a cross-linking agent, is characterized by a Huggins' constant (k′) determined in 0.01M NaC... | 07/31/2007 |
| 7235225 | 12CaO·7A1O compound and method for preparation thereof There is provided a C12A7 compound capable of selectively and reversibly clathrating X− ions, such as active oxygen radicals, with improved controllability. The C12A7 compound clathrating OH− ions and On− at a concentration of ... | 06/26/2007 |
| 7232527 | Sintered body for thermistor devices, thermistor device and temperature sensor A sintered body for thermistor device comprising: at least one element selected from elements of group 3 in a periodic table proviso that La is excluded; at least one element selected from elements of group 2 in a periodic table; Mn; Al; and oxygen, and being substa... | 06/19/2007 |
| 7232556 | Titanium comprising nanoparticles and related nanotechnology Nanoparticles comprising titanium, such as nanoscale doped titanium metal compounds, inorganic titanium compounds, and organic titanium compounds, their methods of manufacture, and methods of preparation of products from nanoparticles comprising titanium are provide... | 06/19/2007 |
| 7220398 | Mixed-metal oxide particles by liquid feed flame spray pyrolysis of oxide precursors in oxygenated solvents Liquid feed flame spray pyrolysis of solutions of a metal oxide precursor which is an alkoxide or C1-6 carboxylate and at least one second metal oxide precursor and/or second metal compound dissolved in oxygenated solvent by combustion with oxygen lead to... | 05/22/2007 |
| 7220454 | Production method of high strength polycrystalline ceramic spheres A method for making hollow spheres of alumina or aluminate comprises: coating polymeric beads with an aqueous solution of an alumoxane, drying the beads so as to form an alumoxane coating on the beads; heating the beads to a first temperature that is sufficient to c... | 05/22/2007 |
| 7211325 | Fluoride salt coated magnesium aluminate A particle having a magnesium aluminate core and a fluoride salt coating on the core. The particle has been heated in an oxidizing atmosphere to a temperature in the range of about 400° C. to about 750° C. A method of making a particle by mixing a magnesium alumin... | 05/01/2007 |
| 7211235 | Method for producing hydrotalcites A method is described for the manufacture of hydrotalcites by using at least one compound of a bivalent metal (Component A) and at least one compound of a trivalent metal (Component B), wherein at least one of these components is not used in the form of a solution, ... | 05/01/2007 |
| 7211233 | Method of preparing granules A method of preparing spherical pellets from a slurry comprising a ceramic powder, a solvent, and any desired additives, by means of a drop-generating orifice to which said slurry is fed is described, wherein the drops are released from said orifice by means of a re... | 05/01/2007 |
| 7211238 | Mesoporous aluminum oxide, preparation and use thereof Mesoporous aluminum oxides with high surface areas have been synthesized using inexpensive, small organic templating agents instead of surfactants. Optionally, some of the aluminum can be framework-substituted by one or more other elements. The material has high the... | 05/01/2007 |
| 7208135 | Preparation of mixed oxides having mean diameters of less than 10 nanometers Process for preparing mixed oxides by reacting alkoxides of the elements titanium, zirconium, niobium, tantalum or mixtures thereof with metal hydroxides, metal carboxylates, metal hydroxycarbonates, metal carbonates or mixtures thereof of the elements lithium, sodi... | 04/24/2007 |
| 7208446 | Quasi-crystalline boehmites containing additives The present invention pertains to a quasi-crystalline boehmite containing additive in a homogeneously dispersed state. Suitable additives are compounds containing elements selected from the group of alkaline earth metals, alkaline metals, rare earth metals, transiti... | 04/24/2007 |
| 7192568 | Process for filter aid production in alumina refineries An improved process for the production of tricalcium aluminate (TCA) filter aid for use in an alumina refinery is described. Quicklime is slaked in a slaker tin using a suitable slaking solution to form a slaked lime slurry (10). A suitable surface-active age... | 03/20/2007 |
| 7182929 | Nanostructured multi-component and doped oxide powders and method of making same A method for producing nanostructured multi-component or doped oxide particles and the particles produced therein. The process includes the steps of (i) dissolving salts of cations, which are either dopants or components of the final oxide, in an organic solvent; (i... | 02/27/2007 |
| 7182807 | Silane coatings for metal A method of treating a metal surface by application of a solution containing at least one vinyl silane and at least one bis-silyl aminosilane. A solution composition having at least one vinyl silane and at least one bis-silyl aminosilane is also provided, along with... | 02/27/2007 |
| 7166263 | Ceria-based mixed-metal oxide structure, including method of making and use A homogeneous ceria-based mixed-metal oxide, useful as a catalyst support, a co-catalyst and/or a getter has a relatively large surface area per weight, typically exceeding 150 m2/g, a structure of nanocrystallites having diameters of less than 4 nm, and ... | 01/23/2007 |
| 7138102 | Method for manufacturing highly-crystallized double oxide powder A method for manufacturing a highly-crystallized double oxide powder composed of a single crystal phase which can be used as a phosphor material, a dielectric material, a magnetic material, etc. The method involves forming fine droplets of a raw material solution co... | 11/21/2006 |
| 7132094 | Method of producing hollow alumina particle A method of producing hollow alumina particles in which the grain size of hollow alumina particles is controlled and in which a high formation ratio of hollow particles is obtained while suppressing the formation of solid particles. The method includes irradiating s... | 11/07/2006 |
