Titanium (e.g., Titanate, Etc.) Patents (Class 423/598)
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Patent number: 7622189Abstract: Structures and methods for the fabrication of ceramic nanostructures. Structures include metal particles, preferably comprising copper, disposed on a ceramic substrate. The structures are heated, preferably in the presence of microwaves, to a temperature that softens the metal particles and preferably forms a pool of molten ceramic under the softened metal particle. A nano-generator is created wherein ceramic material diffuses through the molten particle and forms ceramic nanostructures on a polar site of the metal particle. The nanostructures may comprise silica, alumina, titania, or compounds or mixtures thereof.Type: GrantFiled: June 21, 2006Date of Patent: November 24, 2009Assignee: Babcock & Wilcox Technical Services Y-12, LLCInventors: Edward B. Ripley, Roland D. Seals, Jonathan S. Morrell
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Patent number: 7622411Abstract: There is provided a novel thermal barrier coating material which does not have a problem of phase transition, whose melting point is higher than its working temperature range, whose thermal conductivity is smaller than that of zirconia, and whose thermal expansion coefficient is greater than that of zirconia. The thermal barrier coating material comprises as a main component, a composition having an orthorhombic or monoclinic structure derived from perovskite (for example, a tabular perovskite structure expressed by the composition formula A2B2O7), or a tetragonal layer structure having a c axis/a axis ratio equal to or greater than 3 (for example, a K2NiF4 structure, a Sr3Ti2O7 structure, or a Sr4Ti3O10 structure), a composition expressed by the composition formula LaTaO4, or a composition having an olivine type structure expressed by the composition formula M2SiO4 or (MM?)2SiO4 (where M, M? are divalent metal elements).Type: GrantFiled: March 24, 2004Date of Patent: November 24, 2009Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Katsunori Akiyama, Ichiro Nagano, Masato Shida, Satoshi Ota
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Publication number: 20090285748Abstract: A process for producing a single crystal barium titanate comprises reacting a titanium oxide sol obtained by a wet process and a water-soluble barium compound under the presence of a basic compound in an aqueous reaction mixture at a pH of at least 11 to form a slurry containing barium titanate. The aqueous reaction mixture is subjected to a solid-liquid separation to separate the barium titanate from the slurry. The basic compound is removed as a gas from the barium titanate, and the barium titanate is fired at 300-1200° C.Type: ApplicationFiled: July 27, 2009Publication date: November 19, 2009Applicant: SHOWA DENKO K.K.Inventors: Akihiko Shirakawa, Hitoshi Yokouchi
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Patent number: 7615201Abstract: By using a halogen-free siloxane and an organometallic compound containing at least one metal other than silicon as feed stocks, and simultaneously atomizing and burning them in a flame, spherical particles of silica-containing compound oxide are prepared which are substantially halogen-free, consist of 0.5-99% by weight of metal oxides and the balance of silica, and have a particle size of 10 nm to 3 ?m. The particles are useful as a filler in epoxy resin base semiconductor sealants, a refractive index modifier or the like.Type: GrantFiled: July 23, 2002Date of Patent: November 10, 2009Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Yoshiharu Konya, Koichiro Watanabe, Susumu Ueno
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Publication number: 20090264571Abstract: There are obtained granular platy titanate capable of improving production environment by reducing bridge and plugging during kneading, a producing method therefor and a resin composition containing the granular platy titanate. The granular platy titanate is characterized in that platy titanate is formed with a binder, and examples of platy titanate to be used include laminar titanate compounds, platy potassium octatitanates and platy composite metal titanates.Type: ApplicationFiled: May 24, 2007Publication date: October 22, 2009Inventor: Minoru Yamamoto
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Patent number: 7605110Abstract: A ceramic body, a ceramic catalyst body, a ceramic catalyst body and related manufacturing methods are disclosed wherein a cordierite porous base material has a surface, formed with acicular particles made of a component different from that of cordierite porous base material, which has an increased specific surface area with high resistance to a sintering effect. The ceramic body is manufactured by preparing a slurry containing an acicular particle source material, preparing a porous base material, applying the slurry onto a surface of the porous base material and firing the porous base material, whose surface is coated with the slurry, to cause acicular particles to develop on the surface of the porous base material. A part of or a whole of surfaces of the acicular particles is coated with a constituent element different from that of the acicular particles.Type: GrantFiled: April 5, 2007Date of Patent: October 20, 2009Assignees: Denso Corporation, Nippon Soken, Inc.Inventors: Keiichi Yamada, Kazuhiko Koike, Katsumi Yoshida, Hideki Kita, Naoki Kondo, Hideki Hyuga
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Publication number: 20090253039Abstract: A lithium-transition metal complex compound has an nth order hierarchical structure in which n type structures represented by at least one unit of ath order units in a range of 1×10?(a+5) m to 10×10?(a+5) m exist in a complex form, wherein n is a natural number that is 2 or greater, and a is a natural number in a range of 1 to 5. The lithium-transition metal complex may be prepared by heat-treating a mixture including a lithium source, a transition metal source, and solvent in contact with a natural material having a hierarchical structure. A lithium battery includes an electrode including the lithium-transition metal complex compound having the nth order hierarchical structure. The lithium battery can have improved rapid charging characteristics, high power characteristics, and cycle characteristics.Type: ApplicationFiled: March 6, 2009Publication date: October 8, 2009Applicant: Samsung Electronics Co., Ltd.Inventors: Yoonsok KANG, Joungwon Park, Guesung Kim, Jaegu Yoon
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Publication number: 20090220374Abstract: A unique combination of solution stabilization and delivery technologies with special ALD operation is provided. A wide range of low volatility solid ALD precursors dissolved in solvents are used. Unstable solutes may be stabilized in solution and all of the solutions may be delivered at room temperature. After the solutions are vaporized, the vapor phase precursors and solvents are pulsed into a deposition chamber to assure true ALD film growth.Type: ApplicationFiled: March 3, 2009Publication date: September 3, 2009Inventors: Ce MA, Qing Min WANG, Patrick J. HELLY, Richard HOGLE
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Patent number: 7582276Abstract: The invention relates to nanoscale rutile or oxide powder that is obtained by producing amorphous TiO2 by mixing an alcoholic solution with a titanium alcoholate and with an aluminum alcohalate and adding water and acid. The amorphous, aluminum-containing TiO2 is isolated by removing the solvent, and is redispersed in water in the presence of a tin salt. Thermal or hydrothermal post-processing yields rutile or oxide that can be redispersed to primary particle size. The n-rutile or the obtained oxide having a primary particle size ranging between 5 and 20 nm can be incorporated into all organic matrices so that they remain transparent. Photocatalytic activity is suppressed by lattice doping with trivalent ions. If the amorphous precursor is redispersed in alcohol, or not isolated, but immediately crystallized, an anatase is obtained that can be redispersed to primary particle size.Type: GrantFiled: August 30, 2002Date of Patent: September 1, 2009Assignee: ITN Nanovation AGInventor: Ralph Nonninger
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Patent number: 7578455Abstract: A particulate material is ground more efficiently using a mixture of at least two different sizes of yttrium-stabilized zirconia balls. The method facilitates preparation of photocatalysts with high activity.Type: GrantFiled: August 9, 2004Date of Patent: August 25, 2009Assignee: General Motors CorporationInventors: Jin D. Kim, Wei Li, Se H. Oh
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Publication number: 20090202426Abstract: Method for producing dielectric powder comprising steps of; preparing titanium dioxide powder having sum of surface chlorine amount and internal chlorine amount of 2000 ppm or less, surface chlorinity of 120 ppm or less, rutilated ratio of 30% or less, BET specific surface area of 30 m2/g or more; preparing barium compound powder to produce barium oxide by thermolysis; preparing powder mixture of titanium dioxide powder and barium compound powder; and heat treating the powder mixture.Type: ApplicationFiled: January 23, 2009Publication date: August 13, 2009Applicant: TDK CORPORATIONInventors: Tomohiro Yamashita, Hiroshi Sasaki, Tomoaki Nonaka, Shinsuke Hashimoto
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Publication number: 20090202425Abstract: The present invention relates to a hydrothermal synthesis for preparing barium titanate powder as the essential material for a multi-layer ceramic capacitor. The object of the invention is to prepare barium titanate powder having high purity, particle size of submicron order, uniform particle distribution and excellent crys tallinity , by reacting hydrous titanic acid compound prepared via sulfuric acid process with crystalline titanium oxide and barium hydroxide, as the starting material, at a temperature between 60° C. and 300° C. under a pressure between 5 Kgf/cm2 and 50 Kgf/cm2. The process for preparing barium titanate according to the present invention provides barium titanate powder having Ba/Ti molar ratio of 1.000±0.Type: ApplicationFiled: August 1, 2006Publication date: August 13, 2009Inventors: Sei-Ung Park, Choong-Hoon Paik, Ju-Suk Ryu, Seong-Jae Lim, Jin-Soo Baik, Young-Soo Jang
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Publication number: 20090196819Abstract: Titanium dioxide particles having a selective shielding effect against infrared radiation and a high spreadability are disclosed. The titanium dioxide particles have a primary particle size of 0.5 to 2.0 ?m and a visible light transmission of less than 95%. The titanium oxide particles consist essentially of 0.05 to 0.4% by weight of aluminum oxide, 0.1 to 0.8% by weight of zinc oxide, and the balance of titanium dioxide. The titanium dioxide particles are produced by blending of hydrated titanium oxide with minor amounts of an aluminum compound, a zinc compound and a potassium compound, and then calcining the blend.Type: ApplicationFiled: March 3, 2009Publication date: August 6, 2009Inventor: Takashi ASAKURA
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Patent number: 7566439Abstract: A ceramic powder having a perovskite structure is manufactured by synthesizing a ceramic powder by a dry synthesis process and then heat-treating the synthesized ceramic powder in a solution. The dry synthesis method includes a solid phase synthesis method, an oxalate method, a citric acid method and a gas phase synthesis method.Type: GrantFiled: November 30, 2006Date of Patent: July 28, 2009Assignee: Taiyo Yuden Co., Ltd.Inventors: Chie Kawamura, Atsushi Tanada, Hirokazu Chazono
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Publication number: 20090185971Abstract: A crystallographically-oriented ceramic including first regions, in which crystal nuclei remain and which contain a specific element in a predetermined concentration range and extend at least partially in a layered shape along a crystal plane, and second regions, which contain the specific element in a different concentration range from the first regions and extend at least partially in a layered shape along the crystal plane. The regions are alternately repeated, and a compositional distribution exists in a direction orthogonal to the crystal plane. In the first region, the concentration of Na is higher, the concentration of K is lower, the concentration of Nb is lower, and the concentration of Ta is higher than the second region, and in the second region, the concentration of Na is lower, the concentration of K is higher, the concentration of Nb is higher, and the concentration of Ta is lower than the first region.Type: ApplicationFiled: February 22, 2008Publication date: July 23, 2009Applicant: NGK Insulators, Ltd.Inventors: Shohei Yokoyama, Nobuyuki Kobayashi, Tsutomu Nanataki
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Patent number: 7560606Abstract: The invention relates to Group 1 metal/porous metal oxide compositions comprising porous metal oxide selected from porous titanium oxide and porous alumina and an alkali metal or an alkali metal alloy. The compositions of the inventions are described as Stage 0 and I materials. These materials differ in their preparation and chemical reactivity. Each successive stage may be prepared directly using the methods described below or from an earlier stage material. Stage 0 materials may, for example, be prepared using liquid alloys of Na and K which are rapidly absorbed by porous metal oxide under isothermal conditions, preferably at or just above room temperature, to form loose black powders that retain much of the reducing ability of the parent metals. When the low melting Group 1 metals are absorbed into the porous metal oxide at about 150° C., an exothermic reaction produces Stage I material, loose black powders that are stable in dry air. Further heating forms higher stage materials of unknown composition.Type: GrantFiled: August 16, 2007Date of Patent: July 14, 2009Assignee: Signa Chemistry, Inc.Inventors: Michael Lefenfeld, James L. Dye
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Patent number: 7556792Abstract: Ba(OH)2.8H2O is fused by heating. The fused Ba(OH)2 is allowed to react with TiO2 powder having a specific surface area of 250 m2/g or more to prepare a cubic crystalline BaTiO3 having high crystallinity. The BaTiO3 is calcined to yield a fine, tetragonal crystalline BaTiO3 powder having high crystallinity. Thus, a high quality BaTiO3 having high crystallinity can be prepared at a low cost.Type: GrantFiled: December 30, 2002Date of Patent: July 7, 2009Assignee: Murata Manufacturing Co., Ltd.Inventors: Atsuhiro Torii, Shinichi Kato, Tomohisa Tonogaki, Masaru Kojima, Kenji Tanaka
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Publication number: 20090170002Abstract: Disclosed is a lithium titanate material, which may include an additive, and its use as an electrode in a battery. Specifically disclosed is a lithium titanate based material, with primary particle size larger than 100 nm, having very good high rate charge and discharge capabilities when incorporated into a lithium battery.Type: ApplicationFiled: December 12, 2007Publication date: July 2, 2009Inventors: Pu Zhang, Suresh Mani, Yet-Ming Chiang, Shih-Chieh Yin, Brian Glomski, Young-II Jang, Christopher Silkowski, Michael R. Wixom
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Patent number: 7547490Abstract: The invention concerns a process for producing a spinel compound of formula Li4Ti5O12, comprising a step of preparing a mixture of an organo-lithium compound selected from lithium alcoholates with an organo-titanium compound selected from titanic acid esters, in a liquid medium, and a step of hydrolyzing the mixture of said compounds. The invention also concerns a Li4Ti5O12 particulate material which may be produced according to the previous cited process and which has a BET surface area of at least 10 m2/g. The material is particularly useful in the manufacture of Lithium Ion batteries.Type: GrantFiled: July 29, 2002Date of Patent: June 16, 2009Assignee: Altairnano Inc.Inventors: Timothy Spitler, Jan Prochazka, Ladislav Kavan, Michael Graetzel, François Sugnaux
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Publication number: 20090142255Abstract: There is provided Lithium-manganese oxides expressed as the following chemical formula 1, Li1+xMn1?x?yMyO2+z, ??[Chemical Formula 1] wherein 0.01?x?0.5, 0?y?0.3, ?0.2?z?0.2, and M is a metal selected from the group consisting of Ti, Mn, V, Cr, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, W, Ag, Sn, Ge, Si, Al, and alloy thereof.Type: ApplicationFiled: December 13, 2007Publication date: June 4, 2009Applicant: Korea Institute of Geoscience and Mineral ResourcesInventors: Kang-Sup CHUNG, Jae-Chun LEE, Jin-Ki JEONG, Yang-Soo KIM, Hee-Jin KIM
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Patent number: 7541016Abstract: A lithium titanate has the following formula: Li4Ti5O12?x wherein x is greater than 0. The lithium titanate is formed by providing a mixture of titanium dioxide and a lithium-based component. The mixture is sintered in a gaseous atmosphere comprising a reducing agent to form the lithium titanate having the above formula. A lithium-based cell includes an electrolyte, an anode, and a cathode, with at least one of the anode and the cathode comprising the lithium titanate having the above formula. The lithium titanate is deficient of oxygen, which increases electronic conductivity of the lithium titanate by at least three orders over electronic conductivity of a stoichiometric lithium titanate, while avoiding loss of reversible electric power-generating capacity that typically occurs when doping is used to replace titanium in the lithium titanate with atoms that provide higher electronic conductivity.Type: GrantFiled: August 4, 2006Date of Patent: June 2, 2009Assignee: EnerDel, Inc.Inventors: Vadim Gorshkov, Oleg Volkov
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Publication number: 20090136757Abstract: A method of fractionating a dispersion of oxidic nanoparticles wherein at least one step of the method is a membrane crossflow filtration step, the flow of the dispersion over the membrane being brought about by means of driven rotating parts; and dispersions of oxidic nanoparticles that are obtainable by the method.Type: ApplicationFiled: November 14, 2008Publication date: May 28, 2009Applicant: EVONIK DEGUSSA GmbHInventors: Roland WURSCHE, Goetz Baumgarten, Wolfgang Lortz, Michael Kroell
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Publication number: 20090136415Abstract: A lithium titanate is formed by mixing lithium carbonate powder or lithium hydroxide powder with titanium oxide followed by preparing a mixed slurry of titanium compound powder and a solution containing lithium, followed by depositing a lithium compound by spray-drying.Type: ApplicationFiled: May 14, 2008Publication date: May 28, 2009Applicant: Enerdel, Inc.Inventors: Vadim Gorshkov, Oleg Volkov
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Publication number: 20090123354Abstract: A solid material is presented for the partial oxidation of natural gas. The solid material includes a solid oxygen carrying agent and a hydrocarbon activation agent. The material precludes the need for gaseous oxygen for the partial oxidation and provides better control over the reaction.Type: ApplicationFiled: November 14, 2007Publication date: May 14, 2009Inventors: Deng-Yang Jan, Joel T. Walenga, Kurt M. Vanden Bussche, Joseph A. Kocal, Lisa M. King
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Patent number: 7531160Abstract: The present invention relates to fine hollow powder with a titanium oxide shell, obtained by spray drying an exfoliated titania sol, and thin flaky titanium oxide powder obtained by pulverizing the fine hollow powder, and also to processes for producing the same. The present fine hollow powder and thin flaky titanium oxide powder have a distinguished dispersibility and are useful for additives to cosmetics, pigments, paints, etc., and the present fine hollow powder also has a distinguished flowability and is useful for seed particles for flow measurement.Type: GrantFiled: May 25, 2007Date of Patent: May 12, 2009Assignee: Ishihara Sangyo Kaisha, Ltd.Inventors: Takayoshi Sasaki, Mamoru Watanabe, Yuichi Michiue, Masaki Iida
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Publication number: 20090117464Abstract: Disclosed is a fabrication method for an electrode active material, and a lithium battery comprising an electrode active material fabricated therefrom. The fabrication method for an electrode active material comprises preparing an aqueous solution by dissolving a precursor that can simultaneously undergo positive ion substitution and surface-reforming processes in water; mixing and dissolving raw materials for an electrode active material with a composition ratio for a final electrode active material in the aqueous solution, thereby preparing a mixed solution; removing a solvent from the mixed solution, thereby forming a solid dry substance; thermal-processing the solid dry substance; and crushing the thermal-processed solid dry substance.Type: ApplicationFiled: October 30, 2008Publication date: May 7, 2009Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Byung-Won Cho, Kyung-Yoon Chung, Joong-Kee Lee
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Publication number: 20090117029Abstract: A production method of barium titanate according to the present invention comprises steps of preparing powder mixture of barium carbonate powder and titanium oxide powder and firing the powder mixture. The temperature of the powder mixture is raised to firing temperature at 100° C./minute or more in the range of 400° C. to 700° C.; and maximum temperature at firing is 700° C. or more. The present invention aims at providing a production method, wherein grain growth of barium carbonate particle can be controlled in temperature rising process when producing barium titanate by a solid phase reaction of barium carbonate and titanium oxide; and homogeneous barium titanate powder with small particle size can be produced with excellent energy efficiency.Type: ApplicationFiled: October 27, 2008Publication date: May 7, 2009Applicant: TDK CORPORATIONInventors: Shinsuke Hashimoto, Tomoaki Nonaka, Hiroshi Sasaki
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Publication number: 20090117028Abstract: Provided herein is a hydrothermal process for the rapid synthesis of inorganic nanomaterials (e.g., nanofibers) containing sodium, bismuth, titanium, and oxygen, as well as new compositions made thereby. The process involves heating an aqueous solution or suspension of suitable salts of aforementioned elements at elevated temperature and pressure under constant stirring in a hermetically sealed vessel for a predetermined amount of time (e.g., less than two hours). The powder thus obtained contains nanofibers of rectangular cross-section, with the smallest fibers typically have a cross section of 16 nm×40 nm. Example fibers made by such processes have an aspect ratio exceeding 200.Type: ApplicationFiled: June 13, 2008Publication date: May 7, 2009Applicant: LEHIGH UNIVERSITYInventor: Animesh Kundu
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Publication number: 20090117385Abstract: When being blended in a toner, a barium titanate external additive for toner enhances, in particular, the toner fluidity, electrical properties, and other relevant performance; concurrently achieves high image density and reduced background fog in a printer using the toner; and further reduces image defects, such as void, fading, and the like. An industrially advantageous producing method of the barium titanate external additive for toner is also provided. The external additive for toner of the present invention includes spherical barium titanate having a specific gravity of 5.6 g/ml or less.Type: ApplicationFiled: January 25, 2007Publication date: May 7, 2009Applicant: NIPPON CHEMICAL INDUSTRIAL CO., LTD.Inventors: Kazuo Ochiai, Shinji Tanabe, Naoaki Narishige
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Publication number: 20090088845Abstract: The present disclosure relates to alloys of titanium, tantalum, and oxygen that include from greater than 0 to about 60 weight % tantalum, from greater than or equal to about 0.10 weight % oxygen, and the balance titanium and other impurities. Also disclosed are methods of making such alloys. In addition, articles of manufacture including such alloys, such as biomedical implants, are disclosed.Type: ApplicationFiled: September 24, 2008Publication date: April 2, 2009Inventors: Stanley Abkowitz, Susan M. Abkowitz, Harvey Fisher
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Patent number: 7510693Abstract: Process for the production of a metal oxide powder having a BET surface area of at least 20 m2/g by reacting an aerosol with oxygen in a reaction space at a reaction temperature of more than 700° C. and then separating the resulting powder from gaseous substances in the reaction space, wherein the aerosol is obtained by atomisation using a multi-component nozzle of at least one starting material, as such in liquid form or in solution, and at least one atomising gas, the volume-related mean drop diameter D30 of the aerosol is from 30 to 100 ?m and the number of aerosol drops larger than 100 ?m is up to 10%, based on the total number of drops, and metal oxide powder obtainable by this process.Type: GrantFiled: January 30, 2006Date of Patent: March 31, 2009Assignee: Degussa AGInventors: Stipan Katusic, Michael Kraemer, Michael Kroell, Peter Kress, Edwin Staab
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Publication number: 20090081558Abstract: There is disclosed an active material for a non-aqueous electrolyte battery includes titanium-containing oxide having a crystal structure belonging to P4332 space group.Type: ApplicationFiled: July 21, 2008Publication date: March 26, 2009Inventors: Hiroki Inagaki, Keigo Hoshina, Norio Takami
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Publication number: 20090069586Abstract: To provide: a production method using a catalyst which can substantially suppress leaching of active metal components and exhibit high activity for both reactions of transesterification of glycerides and esterification of free fatty acids each contained in a fat or oil; and the catalyst.Type: ApplicationFiled: February 20, 2006Publication date: March 12, 2009Applicants: Nippon Shokubai Co., Ltd., Research Institute of Innovative Technology For the EarthInventors: Tomoharu Oku, Toshimitsu Moriguchi, Takeo Akatsuka, Masanori Nonoguchi
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Publication number: 20090061257Abstract: The invention provides flaky titanic acid having polymerizable functional groups, a suspension of the same, titanic acid coating films excellent in tight adhesion, and resin bases with titanic acid coating films, namely, flaky titanic acid obtained by treating a layered titanate with an acid and then making an organic basic compound act on the obtained product to conduct interlaminar swelling or delamination, characterized in that at least part of the organic basic compound is one having a polymerizable functional group such as acryl or methacryl and, preferably, in that the layered titanate is one represented by the general formula: AxMy?zTi2?(y+z)O4 [wherein A and M are different from each other and are each a mono- to tri-valent metal; ? represents a Ti-defective site; x is a positive real number satisfying the relationship: 0<x<1; and y and z are 0 or positive real numbers satisfying the relationship: 0<y+z<1].Type: ApplicationFiled: August 10, 2006Publication date: March 5, 2009Inventors: Minoru Yamamoto, Takuya Nomoto
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Publication number: 20090060831Abstract: The invention relates to fine-particulate zirconium titanates or lead zirconium titanates and a method for production thereof by reaction of titanium dioxide particles with a zirconium compound or a lead and zirconium compound. The titanium dioxide particles have a BET surface of more than 50 m2/g. The lead zirconium titanates can be used for the production of microelectronic components.Type: ApplicationFiled: December 13, 2005Publication date: March 5, 2009Applicant: Tronox Pigments GmbHInventors: Gerhard Auer, Horst Gunnel, Frank Hipler, Michael J. Hoffman, Susanne Wagner, Hans Kungl
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Publication number: 20090053605Abstract: There is disclosed a negative electrode active material for a non-aqueous electrolyte battery, which comprises lithium titanium composite oxide represented by a general formula of: Li2+xTi4O9 (wherein x is 0?x?4). The lithium titanium composite oxide is exhibited a highest intensity peak of (002) crystal face at 2?=10°±2°, a peak of (402) crystal face at 2?=30°±2° and a peak of (020) crystal face at 2?=48°±2° as measured by a powder X-ray diffractometer using Cu—K?-ray source. A half band width of the highest intensity peak is 0.5°/2? to 3°/2?.Type: ApplicationFiled: August 20, 2008Publication date: February 26, 2009Inventors: Yasuhiro HARADA, Norio Takami, Hiroki Inagaki, Tomokazu Morita
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Patent number: 7494640Abstract: The sorption capabilities (e.g., kinetics, selectivity, capacity) of the baseline monosodium titanate (MST) sorbent material currently being used to sequester Sr-90 and alpha-emitting radioisotopes at the Savannah River Site are significantly improved when treated with hydrogen peroxide; either during the original synthesis of MST, or, as a post-treatment step after the MST has been synthesized. It is expected that these peroxide-modified MST sorbent materials will have significantly improved sorption capabilities for non-radioactive cations found in industrial processes and waste streams.Type: GrantFiled: June 29, 2005Date of Patent: February 24, 2009Assignee: Sandia CorporaionInventors: May D. Nyman, David T. Hobbs
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Patent number: 7491349Abstract: Disclosed is a titanium oxynitride with excellent hiding properties (light-blocking properties) which is also excellent in degree of blackness and oxidation stability. Specifically disclosed is a titanium oxynitride having a chemical composition expresses as TiNxOy.nSiO2 (wherein Ti represents titanium atoms; N represents nitrogen atoms; O represents oxygen atoms; Si represents silicon atoms; x represents the ratio of nitrogen atoms relative to titanium atoms, y represents the ratio of oxygen atoms relative to titanium atoms, and x and y are respectively a real number of more than 0 but less than 2; and n represents the molar ratio of SiO2 relative to TiNxOy which is a real number within a range of 0?n?0.05). This titanium oxynitride contains nitrogen atoms represented by N in an amount of not less than 17% by weight but less than 23% by weight, while having a specific surface area of 5-30 m2/g and a crystallite size determined by using an X-ray diffractometer of 17-25 nm.Type: GrantFiled: December 27, 2005Date of Patent: February 17, 2009Assignee: Ishihara Sangyo Kaisha, Ltd.Inventors: Hideo Takahashi, Kaoru Isobe, Katsuichi Chiba, Yuichi Yasuda
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Patent number: 7488464Abstract: Methods and systems for processing metal oxides from metal containing solutions. Metal containing solutions are mixed with heated aqueous oxidizing solutions and processed in a continuous process reactor or batch processing system. Combinations of temperature, pressure, molarity, Eh value, and pH value of the mixed solution are monitored and adjusted so as to maintain solution conditions within a desired stability area during processing. This results in metal oxides having high or increased pollutant loading capacities and/or oxidation states. These metal oxides may be processed according to the invention to produce co-precipitated oxides of two or more metals, metal oxides incorporating foreign cations, metal oxides precipitated on active and inactive substrates, or combinations of any or all of these forms.Type: GrantFiled: July 28, 2004Date of Patent: February 10, 2009Assignee: EnviroScrub Technologies CorporationInventors: Charles F. Hammel, Richard M. Boren
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Patent number: 7482382Abstract: The present invention is directed to novel sol-gel methods in which metal oxide precursor and an alcohol-based solution are mixed to form a reaction mixture that is then allowed to react to produce nanosized metal oxide particles. The methods of the present invention are more suitable for preparing nanosized metal oxide than are previously-described sol-gel methods. The present invention can provide for nanosized metal oxide particles more efficiently than the previously-described sol-gel methods by permitting higher concentrations of metal oxide precursor to be employed in the reaction mixture. The foregoing is provided by careful control of the pH conditions during synthesis and by ensuring that the pH is maintained at a value of about 7 or higher.Type: GrantFiled: May 19, 2004Date of Patent: January 27, 2009Assignees: The Texas A&M University System, Kaneka CorporationInventors: Yuntao Li, Hung-Jue Sue, Riichi Nishimura, Nobuo Miyatake
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Publication number: 20090023972Abstract: Catalytic structures are provided comprising octahedral tunnel lattice manganese oxides ion-exchanged with metal cations or mixtures thereof. The structures are useful as catalysts for the oxidation of alkanes and may be prepared by treating layered manganese oxide under highly acidic conditions, optionally drying the treated product, and subjecting it to ion exchange.Type: ApplicationFiled: June 27, 2008Publication date: January 22, 2009Inventors: Helge Jaensch, Wilfried J. Mortier
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Patent number: 7476377Abstract: Sodium nonatitanate compositions, a method using the composition for recovery of 82Sr from irradiated targets, and a method using the composition for generating 82Rb. The sodium nonatitanate materials of the invention are highly selective at separating strontium from solutions derived from the dissolution of irradiated target materials, thus reducing target processing times. The compositions also have a very low affinity for rubidium, making it an ideal material for use as a 82Rb generator. Sodium nonatitanate materials of this type both improve the recovery of 82Sr and provide a safer, more effective 82Rb generator system.Type: GrantFiled: July 19, 2004Date of Patent: January 13, 2009Assignee: Lynntech, Inc.Inventors: Teresia Moller, Todd Adams, Alan Cisar, Hariprasad Gali, Paul Sylvester
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Publication number: 20090004563Abstract: Materials with improved electron conductivity for use in rechargeable lithium ion electrochemical cells include, but are not limited to, lithium titanate spinels of the formula Li4Ti5O12 wherein a portion of Ti is replaced with one or more substitution ions of transition metals. The substitution ions are not in their highest oxidation states and have free valence electrons thereby increasing electron conductivity. The lithium titanate spinels with substitution ions have an unchanged crystal lattice structure and the substitution ions occupy the same crystal lattice sites as Ti. Solid state and polymerized complex methods of synthesizing spinels in addition to rechargeable lithium ion batteries utilizing the improved materials are also disclosed.Type: ApplicationFiled: June 28, 2007Publication date: January 1, 2009Inventor: Zhimin Zhong
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Publication number: 20090000476Abstract: A carbon dioxide absorbent that can absorb carbon dioxide at a temperature lower than that of a conventional Ba2TiO4 absorbent, as well as at a high temperature of at least 700° C., and desorb carbon dioxide at a temperature lower than that of the conventional absorbent is provided. The carbon dioxide absorbent does not expand significantly upon absorption of carbon dioxide, and exhibits high durability. The carbon dioxide absorbent is mainly composed of an oxide that contains Ba, Ca, and Ti, in which the molar ratio of Ca:(Ba+Ca) is 0.25:1 to 0.65:1, and the molar ratio of (Ba+Ca):Ti is 2.2:1 to 4.0:1. It preferably uses a green sheet, waste green sheet, waste green sheet laminate, or green sheet precursor used in a process of manufacturing electronic components can be as at least part of raw materials for making the carbon dioxide absorbent. A carbon dioxide absorption method using the carbon dioxide absorbent is also provided.Type: ApplicationFiled: August 27, 2008Publication date: January 1, 2009Applicant: MURATA MANUFACTURING CO., LTD.Inventors: Yoshinori Saito, Yukio Sakabe
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Publication number: 20080318127Abstract: Primary and secondary Li-ion and lithium-metal based electrochemical cell systems. The suppression of gas generation is achieved through the addition of an additive or additives to the electrolyte system of respective cell, or to the cell itself whether it be a liquid, a solid- or plasticized polymer electrolyte system. The gas suppression additives are primarily based on unsaturated hydrocarbons.Type: ApplicationFiled: May 30, 2008Publication date: December 25, 2008Inventors: Ilias Belharouak, Khalil Amine
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Publication number: 20080308773Abstract: The present invention includes an electrochemical redox active material. The electrochemical redox active material includes a cocrystalline metallic compound having a general formula AxMO4-yXOy.M?O, where A is at least one metallic element selected from a group consisting of alkali metals, M and M? may be identical or different and independently of one another at least one selected from a group consisting of transition metals and semimetals, X is P or As, 0.9?x?1.1, and 0<y<4.Type: ApplicationFiled: June 18, 2007Publication date: December 18, 2008Applicant: Advanced Lithium Electrochemistry Co., Ltd.Inventors: Ben-Jie Liaw, Yu-Fang Chen, Wen-Ren Liu, Sheng-Shih Chang
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Publication number: 20080308456Abstract: Oxidic composition consisting essentially of oxidic forms of a first metal, a second metal, and optionally a third metal, the first metal being either Ca or Ba and being present in the composition in an amount of from about 5 to about 80 wt %, the second metal being Al and being present in the composition in an amount of from about 5 to about 80 wt %, the third metal being selected from the group consisting of La, Ti, and Zr, and being present in an amount of from 0 to about 17 wt %—all weight percentages calculated as oxides and based on the weight of the oxidic composition, the oxidic composition being obtainable by (a) preparing a physical mixture comprising solid compounds of the first, the second, and the optional third metal, (b) optionally aging the physical mixture, without anionic clay being formed, and (c) calcining the mixture. This composition is suitable for use in FCC processes for the passivation of metals with only minimal influence on the zeolite's hydrothermal stability.Type: ApplicationFiled: June 2, 2006Publication date: December 18, 2008Applicant: ALBEMARLE NETHERLANDS B.V.Inventors: Dennis Stamires, Paul O'Connor, William Jones
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Patent number: 7455826Abstract: A layered titanic acid produced by subjecting a layered titanate represented by a general formula: AxMy?zTi2?(y+z)O4, wherein A and M represent metals having a valence of 1 to 3 and being different from each other, ? represents a defect to be occupied by titanium, x is a positive and real number satisfying 0<x<1.0, y and z are positive and real numbers satisfying 0<y+z<1.0, to an acid treatment, to thereby substitute hydrogen ions or hydronium ions for 40 to 99% of A and/or M ions; a lamellar titanic acid produced by reacting the layered titanic acid with a basic compound, to thereby delaminate the layered titanic acid; and a lamellar titanium oxide produced by subjecting the lamellar titanic acid to a heat treatment or the like.Type: GrantFiled: August 13, 2002Date of Patent: November 25, 2008Assignee: Otsuka Chemical Co., Ltd.Inventors: Akiyoshi Inubushi, Harue Matsunaga, Ryoichi Hiroi
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Publication number: 20080285211Abstract: Synthesis process for new particles of Li4Ti5O12, Li(4-?)Z?Ti5O12 or Li4Z?Ti(5-?)O12, preferably having a spinel structure, wherein ? is greater than 0 and less than or equal to 0.5 (preferably having a spinel structure), ? representing a number greater than zero and less than or equal to 0.33, Z representing a source of at least one metal, preferably chosen from the group made up of Mg, Nb, Al, Zr, Ni, Co. These particles coated with a layer of carbon notably exhibit electrochemical properties that are particularly interesting as components of anodes and/or cathodes in electrochemical generators.Type: ApplicationFiled: May 2, 2008Publication date: November 20, 2008Applicant: Hydro-QuebecInventors: Karim Zaghib, Michel Gauthier, Fernand Brochu, Abdelbast Guerfi, Monique Masse, Michel Armand
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Publication number: 20080280205Abstract: Provided are cathode compositions for a lithium-ion battery having the formula Li[LixMnaNibCocMd]O2 where M is a metal other than Mn, Ni, or Co, and x+a+b+c+d=1; x?0; b>a; 0<a?0.4; 0.4?b<0.5; 0.1?c?0.3; and 0?d?0.1. The provided compositions are useful as cathodes in secondary lithium-ion batteries. The compositions can include lithium transition metal oxides that can have at least two dopants from Group 2 or Group 13 elements. The transition metal oxides can include one or more materials selected from manganese, cobalt, and nickel. The provided compositions can provide cathode materials that have high specific capacities and high thermal stability.Type: ApplicationFiled: March 27, 2008Publication date: November 13, 2008Inventors: Junwei Jiang, Zhonghua Lu, Mark N. Obrovac