Forming Compound Containing Plural Metals Patents (Class 423/115)
  • Patent number: 10208498
    Abstract: This application relates to tower segment handling methods and apparatus and, in particular, to methods and apparatus for handling segments of steel wind turbine towers. The wind turbine tower comprises a plurality of cylindrical vertical tower sections, which in the finished tower are mounted on top of one another. The vertical section of the tower has a longitudinal axis and comprises a plurality of wind turbine tower segments, the tower segments have vertical and horizontal edges and combine to form a complete vertical tower section by joining along their vertical edges. Adjacent vertical tower sections are joined to each other along the horizontal edges of the wind turbine tower segments. The tower segments are combined into a tower section using a flat roller bed on which the segments can be assembled. A method of assembling a tower section is discussed.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: February 19, 2019
    Assignee: Vestas Wind Systems A/S
    Inventor: Gunnar K. Storgaard Pedersen
  • Patent number: 9711590
    Abstract: There is provided a semiconductor device including corundum crystal films of good quality. There is provided a semiconductor device including a base substrate, a semiconductor layer, and an insulating film each having a corundum crystal structure. Materials having a corundum crystal structure include many types of oxide films capable of functioning as an insulating film. Since all the base substrate, the semiconductor layer, and the insulating film have a corundum crystal structure, it is possible to achieve a semiconductor layer and an insulating film of good quality on the base substrate.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: July 18, 2017
    Assignee: FLOSFIA, INC.
    Inventors: Kentaro Kaneko, Toshimi Hitora, Takashi Hirao
  • Patent number: 9671359
    Abstract: The present invention relates to a process for preparing a humidity sensor based on resistive type porous Magnesium Ferrite (MgFe2O4) pellets and a humidity sensor thereof. More particularly, the present invention includes a synthesis process of preparing 30 to 40% porous MgFe2O4 pellets. The process further includes making Ohmic contacts on the porous MgFe2O4 pellets. The process is very cost effective and optimized to keep the resistance of the porous MgFe2O4 pellets in the range 200-300 M?. Further, the response and recovery time of the porous MgFe2O4 pellets to humidity is in the range of few seconds only. Further, the porous MgFe2O4 pellets can be used for humidity sensing for more than 12 months. Due to resistance stability even after long-term exposure in humidity, the porous MgFe2O4 pellets do not require flash heating.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: June 6, 2017
    Assignee: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Ravinder Kumar Kotnala, Jyoti Shah, Hari Kishan, Bhikham Singh
  • Patent number: 9441283
    Abstract: Method for processing bauxite, including grinding the bauxite and extracting iron; separating the resulting pulp into a solid phase and a liquid phase; extracting aluminum from the liquid phase at a pH of about 7 to 8 to form a precipitate of sodium hydrogen carboaluminate; separating the precipitate of sodium hydrogen carboaluminate from the neutralized pulp; extracting iron from the neutralized liquid phase at a pH of at least about 12 using to form a precipitate of iron hydroxide; separating the precipitate of iron hydroxide from the basic pulp to form an iron ore concentrate and a mother liquor chelate; concentrating the mother liquor chelate using evaporation; cooling the concentrated solution; carbonizing the cooled solution with gaseous carbon dioxide under pressure to crystallize sodium hydrogen carbonate; and separating the crystallized sodium hydrogen carbonate from the carbonized solution to form a chelate liquid phase and a sodium hydrogen carbonate solid phase.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: September 13, 2016
    Assignee: Pleason Ventures Ltd.
    Inventor: Alexander Welter
  • Patent number: 9133038
    Abstract: A process for treating a natural or wastewater containing dissolved Mg or dissolved Al comprising the steps of adding at least one Mg-containing compound or at least one Al-containing compound to the natural or wastewater to thereby form a layered double hydroxide (LDH) containing Mg and Al as predominant metal species in a lattice of the LDH. The LDH may comprise hydrotalcite. The AL-containing compound may be aluminate or aluminium hydroxide derived from the Bayer process or from an alumina refinery.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: September 15, 2015
    Assignee: Commonwealth Scientific and Industrial Research Organisation
    Inventor: Grant Brian Douglas
  • Publication number: 20140301920
    Abstract: There are provided methods for preparing hematite. For example, the method can comprise reacting a basic aqueous composition comprising the iron and the aluminum with hematite under conditions suitable for at least partially converting the iron into hematite under the form of a precipitate, thereby obtaining a liquid phase and a solid phase; and separating the liquid phase from the solid phase.
    Type: Application
    Filed: June 4, 2012
    Publication date: October 9, 2014
    Applicant: ORBITE ALUMINAE INC.
    Inventors: Richard Boudreault, Joël Fournier, Laury Gauthier
  • Patent number: 8409540
    Abstract: Disclosed is a method of preparing hydrotalcite having superior anion exchange capability and heat stability by forming a seed so that CO32? ions are located to be maximally stable between Mg—Al layers and then conducting primary crystallization and secondary crystallization.
    Type: Grant
    Filed: November 17, 2008
    Date of Patent: April 2, 2013
    Inventors: Oh Young Kwon, Im Sun Her
  • Patent number: 8268269
    Abstract: As population density increases, the transportation of hazardous chemicals, including acids and disinfectants, lead to an increased incidence of spills while the consequences of spills become more serious. While solutions of halide acids, hypohalites and halites are safer disinfectants for transportation, handling, storage and use than traditional gaseous chlorine, the manufacturing cost of these disinfectants has here-to-fore limited their use. Economical processes are presented for the manufacture of O2, halogen oxides, halide acids, hypohalites, and halates; as well as polynucleate metal compounds, metal hydroxides and calcium sulfate hydrate (gypsum). The instant invention presents methods and processes that incorporate the use of sulfur. This is while environmental regulators, such as the US EPA, require an increased removal of sulfur from hydrocarbon fuels, thereby creating an abundance of sulfur, such that the refining industry is in need of a way to dispose of said abundance of sulfur.
    Type: Grant
    Filed: July 23, 2007
    Date of Patent: September 18, 2012
    Inventors: Richard Alan Haase, John Smaardyk
  • Patent number: 8137844
    Abstract: A method for manufacturing a cathode active material for a lithium rechargeable battery, including: selecting a first metal compound from a group consisting of a halide, a phosphate, a hydrogen phosphate and a sulfate of Mg or Al; selecting a second metal compound from a group consisting of an oxide, a hydroxide and a carbonate of Mg or Al; combining the first metal compound and the second metal compound to obtain a metal compound, the metal compound containing either Mg or Al atoms; mixing a lithium compound, a transition metal compound and the metal compound to obtain a mixture; and sintering the mixture.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: March 20, 2012
    Assignee: Nippon Chemical Industrial Co., Ltd.
    Inventors: Hidekazu Awano, Minoru Fukuchi, Yuuki Anbe
  • Publication number: 20120064397
    Abstract: A phosphate based compound basically comprising—A: exchangeable cations used in charging and discharging, e.g. Li, Na, K, Ag, —B: non-exchangeable cations from the transition metals, group 3-12 of the periodic table of elements, e.g. Fe, Mn, Co, Cr, Ti, V, Cu, Sc, —C: 60 Mol-%-90 Mol-%, preferably 75 Mol-% of the compound being phosphate (PO4)3? anions, where oxygen is or may be partially substituted by a halide (e.g. F, Cl) and/or OH? to a maximum concentration of 10 Mol-% of the oxygen of the anions and wherein said (PO4)3? coordination polyhedra may be partially substituted by one or more of: SiO44 silicate, BO33? borate, CO32? carbonate, H2O water up to a maximum amount of <31 Mol-% of the anions, said compound being in crystalline form and having open elongate channels extending through the unit cell of the structure and with the compound being present either in single crystal form or as an anisotropic microcrystalline or nanocrystalline material.
    Type: Application
    Filed: December 11, 2009
    Publication date: March 15, 2012
    Applicant: Max-Planck-Gesellschaft zur Foerderung der Wissenschaften e.V.
    Inventors: Christoph Kallfass, Hermann Schier, Helmut Schubert
  • Publication number: 20120020853
    Abstract: A method of manufacturing alumina by recycling nickel-aluminum comprises a step of “soaking,” by soaking a purified mineral of nickel-aluminum into an alkaline buffer followed by keeping at an environment of 1 ATM to obtain a rough solution of aluminate; a step of “filtration,” by filtering out a purified mineral of nickel and cobalt from the rough solution of aluminate to obtain a solution of aluminate; a step of “purification,” by adding a de-impurity reagent into the solution of aluminate to remove the impurity of vanadates, molybdates and silicates from the solution of aluminate, in order to obtain a purified solution of aluminate; a step of “sedimentation,” by precipitating out aluminum hydroxide from the purified solution of aluminate; and a step of “calcination,” by calcining the aluminum hydroxide, finally to obtain alumina.
    Type: Application
    Filed: October 5, 2010
    Publication date: January 26, 2012
    Inventors: Yu-Lung SUN, Yung-Hao Liu, Ming-Zhe Tsai
  • Publication number: 20110311419
    Abstract: The present invention relates to the use of lithium salts and/or magnesium salts for the precipitation of aluminum oxides present in aqueous media.
    Type: Application
    Filed: June 27, 2011
    Publication date: December 22, 2011
    Inventor: Donald Geniesse
  • Publication number: 20110293494
    Abstract: Procedure for obtaining calcium aluminate from the dry waste generated in the treatment, for recovery of metallic Al and salts, of the saline dross produced in the metallurgy of secondary aluminium and calcium oxide and/or CaO precursor. The procedure may produce briquettes or pellets of precursors of calcium aluminate through cold sintering or premolten calcium aluminate through hot sintering.
    Type: Application
    Filed: January 20, 2010
    Publication date: December 1, 2011
    Applicant: ASTURIANA DE ALEACIONES, S.A.
    Inventors: José Martinez Iglesias, Alejandro Salinas Tuya, Fernando Marquinez Peña
  • Patent number: 8034152
    Abstract: A novel solution route has been developed that after heat-treatment to 500-600° C. under inert atmosphere, yields highly porous composites of nano-sized metal (Ni) particle inclusions in ceramics (Al2O3). Metal loadings could be made from <1% to >95% Ni. The metal inclusion sizes in the Ni—Al2O3 system with the 10 atom % Ni sample were 4-7 nm, while for the 75 atom % Ni sample they were 5-8 nm. It was shown that the 10 atom % Ni sample could be used as a catalyst for the conversion of CO2 and CH4 in the temperature range 550-700° C., while higher temperatures led to growth of the Ni particles and carbon poisoning over time. The solution routes could also be deposited as thin dense films containing <10 nm Ni particles. Such films with high Ni-particle loadings deposited on aluminium substrates have shown very good solar heat absorber proficiency and provide good substrates for carbon tube growth.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: October 11, 2011
    Inventors: Gunnar Westin, Annika Pohl, Asa Ekstrand
  • Patent number: 8012336
    Abstract: Proposed is a method for collecting valuable metal from an ITO scrap in which a mixture of indium hydroxide and tin hydroxide or metastannic acid is collected by subjecting the ITO scrap to electrolysis in pH-adjusted electrolyte, and roasting this mixture as needed to collect the result as a mixture of indium oxide and tin oxide. This method enables the efficient collection of indium hydroxide and tin hydroxide or metastannic acid, or indium oxide and tin oxide from an ITO scrap of an indium-tin oxide (ITO) sputtering target or an ITO scrap such as ITO mill ends arisen during the manufacture of such ITO sputtering target.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: September 6, 2011
    Assignee: JX Nippon Mining & Metals Corporation
    Inventors: Yuichiro Shindo, Kouichi Takemoto
  • Patent number: 8007652
    Abstract: Proposed is a method for collecting valuable metal from an ITO scrap including the steps of subjecting the ITO scrap to electrolysis and collecting the result as indium-tin alloy. Additionally provided is a method for collecting valuable metal from an ITO scrap including the steps of providing an ITO electrolytic bath and an indium-tin alloy collecting bath, dissolving the ITO in the electrolytic bath, and thereafter collecting indium-tin alloy in the indium-tin alloy collecting bath. These methods enable the efficient collection of indium-tin alloy from an ITO scrap of an indium-tin oxide (ITO) sputtering target or an ITO scrap such as ITO mill ends arisen during the manufacture of such ITO sputtering target.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: August 30, 2011
    Assignee: JX Nippon Mining & Metals Corporation
    Inventors: Yuichiro Shindo, Kouichi Takemoto
  • Patent number: 8003065
    Abstract: Proposed is a method for collecting valuable metal from an ITO scrap including the steps of subjecting the ITO scrap to electrolysis in pH-adjusted electrolyte, and collecting indium or tin as oxides. Additionally proposed is a method for collecting valuable metal from an ITO scrap including the steps of subjecting the ITO scrap to electrolysis in an electrolytic bath partitioned with a diaphragm or an ion-exchange membrane to precipitate hydroxide of tin, thereafter extracting anolyte temporarily, and precipitating and collecting indium contained in the anolyte as hydroxide. With the methods for collecting valuable metal from an ITO scrap described above, indium or tin may be collected as oxides by roasting the precipitate containing indium or tin. Consequently, provided is a method for efficiently collecting indium from an ITO scrap of an indium-tin oxide (ITO) sputtering target or an ITO scrap such as ITO mill ends arisen during the manufacture of such ITO sputtering target.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: August 23, 2011
    Assignee: JX Nippon Mining & Metals Corporation
    Inventors: Yuichiro Shindo, Kouichi Takemoto
  • Patent number: 7976799
    Abstract: The present invention relates to the use of lithium salts and/or magnesium salts for the precipitation of aluminum oxides present in aqueous media.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: July 12, 2011
    Assignee: Areva Federal Services, LLC
    Inventor: Donald Geniesse
  • Patent number: 7968067
    Abstract: The present invention relates to the use of lithium salts and/or magnesium salts for the precipitation of aluminum oxides present in aqueous media.
    Type: Grant
    Filed: April 14, 2010
    Date of Patent: June 28, 2011
    Assignee: Areva Federal Services, LLC
    Inventor: Donald Geniesse
  • Patent number: 7767190
    Abstract: 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 70-80° C.) and agitation, to form substantially only a hydrocalumite species and hydroxyl ions; and a secondary reactor wherein the hydrocalumite species formed is subjected to heating in contact with a Bayer liquor under controlled conditions so as to cause the hydrocalumite species to react with the liquor to form calcium carbonate, aluminate ions and hydroxyl ions, whereby a causticised Bayer liquor is obtained and wherein the efficiency of lime utilization is substantially increased and/or alumina losses are minimized.
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: August 3, 2010
    Assignee: BHP Billiton Worsley Alumina PTY Ltd.
    Inventors: Steven Philip Rosenberg, Darrel James Wilson, Catherine Ann Heath
  • Publication number: 20100189613
    Abstract: The present invention relates to the use of lithium salts and/or magnesium salts for the precipitation of aluminum oxides present in aqueous media.
    Type: Application
    Filed: April 14, 2010
    Publication date: July 29, 2010
    Applicant: AREVA FEDERAL SERVICES LLC
    Inventor: Donald GENIESSE
  • Patent number: 7740814
    Abstract: A novel solution route has been developed that after heat-treatment to 500-600° C. under inert atmosphere, yields highly porous composites of nano-sized metal (Ni) particle inclusions in ceramics (Al2O3). Metal loadings could be made from <1% to >95% Ni. The metal inclusion sizes in the Ni—Al2O3 system with the 10 atom % Ni sample were 4-7 nm, while for the 75 atom % Ni sample they were 5-8 nm. It was shown that the 10 atom % Ni sample could be used as a catalyst for the conversion of CO2 and CH4 in the temperature range 550-700° C., while higher temperatures led to growth of the Ni particles and carbon poisoning over time. The solution routes could also be deposited as thin dense films containing <10 nm Ni particles. Such films with high Ni-particle loadings deposited on aluminium substrates have shown very good solar heat absorber proficiency and provide good substrates for carbon tube growth.
    Type: Grant
    Filed: January 3, 2006
    Date of Patent: June 22, 2010
    Inventors: Gunnar Westin, Annika Pohl, Åsa Ekstrand
  • Patent number: 7736547
    Abstract: A method of producing a proton conducting material, comprising adding a pyrophosphate salt to a solvent to produce a dissolved pyrophosphate salt; adding an inorganic acid salt to a solvent to produce a dissolved inorganic acid salt; adding the dissolved inorganic acid salt to the dissolved pyrophosphate salt to produce a mixture; substantially evaporating the solvent from the mixture to produce a precipitate; and calcining the precipitate at a temperature of from about 400° C. to about 1200° C.
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: June 15, 2010
    Assignee: Los Alamos National Security, LLC
    Inventors: Fernando Henry Garzon, Melinda Lou Einsla, Rangachary Mukundan
  • Patent number: 7695707
    Abstract: A method for preparation of iodizing agent for the use in the formulation of iodized salt that offers excellent stability of iodine in iodized salt is developed and the unrefined salt iodized with this compound was tested for its stability in presence of moisture, temperature and metal salts at higher temperature. The hydrotalcite type layered compound was used to prepare such compound and part of carbonate was substituted with iodate anion. The iodizing agent exhibited excellent stability of iodine in iodized salt.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: April 13, 2010
    Assignee: Council of Scientific and Industrial Research
    Inventors: Pushpito Kumar Ghosh, Satish Hariray Mehta, Jatin Rameshchandra Chunawala, Mrunalben Vinodray Sheth, Mahesh Ramniklal Gandhi
  • Patent number: 7666373
    Abstract: A process for recovering alumina values from a first liquor having an initial concentration of aluminate ions and hydroxyl ions in solution is described. The first liquor is treated with a hydroxide of a metal other than aluminium to form an aluminium-bearing layered double hydroxide and produce a treated stream of first liquor, the treated stream of first liquor having a final concentration of aluminate ions less than the initial concentration of aluminate ions. The aluminium-bearing layered double hydroxide is separated from the treated stream of first liquor. Thereafter the clarified treated stream of first liquor is returned to a first location within an alumina refinery. The separated aluminium-bearing layered double hydroxide is contacted with a solution containing carbonate ions to form a slurry comprising an insoluble salt of the metal other than aluminium and a second liquor comprising aluminate ions released from the aluminium-bearing layered double hydroxide.
    Type: Grant
    Filed: August 8, 2007
    Date of Patent: February 23, 2010
    Assignee: BHP Billiton Aluminium Australia Pty Ltd.
    Inventor: Steven Philip Rosenberg
  • Patent number: 7648689
    Abstract: The invention is to provide a process for industrially advantageously producing InP fine particles having a nano-meter size efficiently in a short period of time and an InP fine particle dispersion, and there are provided a process for the production of InP fine particles by reacting an In raw material containing two or more In compounds with a P raw material containing at least one P compound in a solvent wherein the process uses, as said two or more In compounds, at least one first In compound having a group that reacts with a functional group of P compound having a P atom adjacent to an In atom to be eliminated with the functional group in the formation of an In-P bond and at least one second In compound having a lower electron density of In atom in the compound than said first In compound and Lewis base solvent as said solvent, and InP fine particles obtained by the process.
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: January 19, 2010
    Assignee: Hoya Corporation
    Inventor: Shuzo Tokumitsu
  • Patent number: 7598194
    Abstract: It is aimed at providing an oxynitride powder, which is suitable for usage as a phosphor, is free from coloration due to contamination of impurities, and mainly includes a fine ?-sialon powder. An oxynitride powder is produced by applying a heat treatment in a reducing and nitriding atmosphere, to a precursor compound including at least constituent elements M, Si, Al, and O (where M is one element or mixed two or more elements selected from Li, Mg, Ca, Sr, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu), thereby decreasing an oxygen content and increasing a nitrogen content of the precursor.
    Type: Grant
    Filed: April 22, 2005
    Date of Patent: October 6, 2009
    Assignee: National Institute for Materials Science
    Inventors: Naoto Hirosaki, Takayuki Suehiro
  • Patent number: 7582276
    Abstract: 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: Grant
    Filed: August 30, 2002
    Date of Patent: September 1, 2009
    Assignee: ITN Nanovation AG
    Inventor: Ralph Nonninger
  • Patent number: 7553474
    Abstract: It is an object to provide a method for producing stable alkaline metal oxide sols having a uniform particle size distribution. The method comprises the steps of: heating a metal compound at a temperature of 60° C. to 110° C. in an aqueous medium that contains a carbonate of quaternary ammonium; and carrying out hydrothermal processing at a temperature of 110° C. to 250° C. The carbonate of quaternary ammonium is (NR4)2CO3 or NR4HCO3 in which R represents a hydrocarbon group, or a mixture thereof. The metal compound is one, or two or more metal compounds selected from a group of compounds based on a metal having a valence that is bivalent, trivalent, or tetravalent.
    Type: Grant
    Filed: August 8, 2005
    Date of Patent: June 30, 2009
    Assignee: Nissan Chemical Industries, Ltd.
    Inventors: Yutaka Ohmori, Hirokazu Kato, Yoshinari Koyama, Kenji Yamaguchi
  • Patent number: 7429408
    Abstract: C12A7 containing oxygen radicals at a high concentration, is provided at a low cost. A method for preparing an oxygen radical-containing calcium aluminate film, characterized in that it comprises subjecting a powder of oxygen radical-containing calcium aluminate to thermal spraying, and preferably the oxygen radical content in the oxygen radical-containing calcium aluminate is at least 1020 cm?3.
    Type: Grant
    Filed: January 21, 2004
    Date of Patent: September 30, 2008
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Takashi Kawasaki, Kazuhiro Ito, Masahiro Ibukiyama
  • Patent number: 7288241
    Abstract: 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+/Fe2+ of 0.8 to 10. Also described is a method for producing the black composite oxide particle. In an embodiment, the particle includes a hydrated composite oxide represented by an empirical formula: Fe2+aFe3+bMgcAldOe·nH2O. The black composite oxide particle is suitable as a black pigment for a coating material, an ink, toner particles, a rubber and a plastic, and is reduced with respect to the load on the environment and excellent in blackness.
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: October 30, 2007
    Assignee: Mitsui Mining and Smelting Co., Ltd.
    Inventors: Koji Aga, Hiroyuki Shimamura
  • Patent number: 7220398
    Abstract: 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 the formation of sub-micron mixed-metal oxide powders not accessible by other processes or by the pyrolysis of metal chlorides or nitrates. The powders have numerous uses in advanced materials applications including particulate solid state lasers, advanced ceramic materials, and as catalysts in organic synthesis and automobile exhaust systems.
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: May 22, 2007
    Assignee: TAL Materials & The Regents of the University of Michigan
    Inventors: Anthony C. Sutorik, Richard M. Laine, Julien Marchal, Tyrone Johns, Thomas Hinklin
  • Patent number: 7211238
    Abstract: 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 thermal stability and possesses a three-dimensionally randomly connected mesopore network with continuously tunable pore sizes. This material can be used as catalysts for dehydration, hydrotreating, hydrogenation, catalytic reforming, steam reforming, amination, Fischer-Tropsch synthesis and Diels-Alder synthesis, etc.
    Type: Grant
    Filed: March 8, 2004
    Date of Patent: May 1, 2007
    Assignee: ABB Lummus Global Inc.
    Inventors: Zhiping Shan, Jacobus Cornelius Jansen, Chuen Y. Yeh, Philip J. Angevine, Thomas Maschmeyer
  • Patent number: 7138098
    Abstract: A method of manufacturing a nanocrystallite from a M-containing salt forms a nanocrystallite. The nanocrystallite can be a member of a population of nanocrystallites having a narrow size distribution and can include one or more semiconductor materials. Semiconducting nanocrystallites can photoluminesce and can have high emission quantum efficiencies.
    Type: Grant
    Filed: October 8, 2004
    Date of Patent: November 21, 2006
    Assignee: Massachusetts Institute of Technology
    Inventors: Moungi Bawendi, Nathan E. Stott
  • Patent number: 7029644
    Abstract: Silicon raw material and gallium dopant are charged and mixed in a crucible. The silicon raw material is heated to a predetermined temperature, and melted under an inactive gas atmosphere. The melted silicon raw material is cooled down to be crystallized to make a polycrystalline silicon incorporating the gallium dopant.
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: April 18, 2006
    Assignees: National University Corporation, Tokyo University of Agriculture and Technology
    Inventor: Tadashi Saito
  • Patent number: 7022302
    Abstract: An improved process is described for the preparation of surface modified hydrotalcite. The process comprises reacting a precursor of magnesium and aluminium in the presence of suitable alkali carbonate at high temperature. The product has a BET surface area of ?20 m2/gm and average particle size of ?0.5 ?m and is useful as halogen scavenger and fire retardant.
    Type: Grant
    Filed: December 31, 2002
    Date of Patent: April 4, 2006
    Assignee: Council of Scientific and Industrial Research
    Inventors: Pravinchandra M. Oza, Satishbhai H. Mehta, Murnalben V. Sheth, Pushpito K. Ghosh, Mahesh R. Gandhi, Jatin R. Chunawala
  • Patent number: 7004993
    Abstract: A method of making intermetallic nanoscale particles comprising iron aluminide and/or iron aluminum carbide comprising the steps of preparing a mixture of a solvent, an iron salt and LiAlH4, and heating the mixture to form the intermetallic nanoscale particles. The intermetallic nanoscale particles, which can comprise intermetallic nanoscale particles of iron aluminide and/or iron aluminum carbide in an alumina matrix, are capable of reducing the amount of 1,3-butadiene in the mainstream smoke of a cigarette.
    Type: Grant
    Filed: June 13, 2003
    Date of Patent: February 28, 2006
    Assignee: Philip Morris USA Inc.
    Inventors: Yezdi B. Pithawalla, Sarojini Deevi
  • Patent number: 6986873
    Abstract: A method of producing a single-phase composition Mn+1AzXn, primarily the production of the single-phase material Ti3SiC2, where n lies within a range of 0.8-3.2, where z lies within a range of 0.8-1.2, where M is at least one metal taken from the group of metals Ti (titanium), Sc (scandium), V (vanadium), Cr (chromium), Zr (zirconium), Nb (niobium) and Ta (tantalum), where X is at least one of the non-metals C (carbon) and N nitrogen), and where A is at least one of the chemical elements Si (silicon), Al (aluminum) and Sn (tin) or a compound of those elements, such that the final, desired compound will include the components Mn+1AzXn. A powder mixture of the components is formed and is ignited under an inert atmosphere to prevent promotion of dissociation and to cause the components to react.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: January 17, 2006
    Assignees: Sandvik AB, Drexel University
    Inventors: Mats Sundberg, Kjell Lindgren, Tamer El-Raghy, Michael Barsoum
  • Patent number: 6818192
    Abstract: The present invention provides a 12CaO.7Al2O3 compound containing an O2− ion radical and/or an O− ion radical in a high concentration of 1020 cm−3 or more. This compound can be used as an oxidization catalyst, antibacterial agent, ion conductor, or electrode material for solid-oxide fuel cells.
    Type: Grant
    Filed: February 14, 2002
    Date of Patent: November 16, 2004
    Assignee: Japan Science and Technology Corporation
    Inventors: Hideo Hosono, Masahiro Hirano, Katsuro Hayashi
  • Patent number: 6814947
    Abstract: The invention relates to the production of calcium compounds containing water of crystallization by means of a chemical reaction between an aqueous alkaline sodium aluminate solution and solid or dissolved or suspended calcium (hydr)-oxide in the presence of carbon dioxide or carbonate; and to the use of these compounds. The resulting precipitate is separated by sedimentation, dehydration, drying and/or clacination and/or grinding or suspending the resulting filter cake and reacted with at least one mineral acid and/or at least one salt of the same. The resulting precipitate, which contains water of crystallization, is separated by sedimentation, dehydration, drying and/or grinding.
    Type: Grant
    Filed: November 29, 2001
    Date of Patent: November 9, 2004
    Assignee: Rethmann Lippewerk GmbH
    Inventors: Josef Lehmkuhl, Ansgar Fendel, Hubert Bings
  • Patent number: 6803401
    Abstract: A halogen scavenging system is provided for inhibiting the corrosion-causing tendency and coloration of halogen-containing olefin polymers or copolymers, comprising incorporating about 0.01% to about 1% of a hydroltalcite-like solid solution having the formula Al2(Mg)a(OH)b(CO3)c(G)d.eH2O and a crystallite size in the <003> direction of about 190 Å to about 225 Å, and having bidentate coordination for carbonate ion as shown by an infrared spectrum, and wherein 3≦a≦5.5; 8≦b≦14; 1.2≦c≦3; 0≦d≦1; 1≦e≦10 and G is a surface active agent into the halogen containing olefin polymer.
    Type: Grant
    Filed: September 21, 2001
    Date of Patent: October 12, 2004
    Assignee: Reheis, Inc.
    Inventors: Jawahar C. Parekh, Rajanikant D. Desai
  • Patent number: 6793908
    Abstract: A solution method for preparing indium-tin oxide (ITO) powders is provided. Indium compounds and tin compounds are dissolved in water respectively to form two solution bodies. Some proper additives are added into the solution bodies to form metal hydroxyl compounds with determined composition. After water washing and filtration, proper additives are added into the solution to peptize the solution. During the peptization process, hydrolysis and condensation reactions occurs between different metal hydroxyl compounds. Solvent of the solution is then removed to form high quality nanometer grade ITO powders.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: September 21, 2004
    Assignee: Cheng Loong Corporation
    Inventors: Hsin Chung Lu, Chio Hao Hsu, I Chiao Lin, Chien Lung Weng
  • Patent number: 6676910
    Abstract: An improved process for the causticisation of Bayer liquors in an alumina refinery includes a first step of reacting lime with aluminate ions in a Bayer liquor within a primary reactor operated at low to moderate temperature to form a hydrocalumite species and hydroxyl ions. In a second step, the hydrocalumite species is heated in contact with a Bayer liquor, which either includes or is a different liquor than the Bayer liquor of the first step, under controlled conditions to cause the hydrocalumite species to react with the liquor to form calcium carbonate, aluminate ions and hydroxyl ions. The principal advantages of the improved process include very high lime utilisation efficiencies (in excess of 90%) and a substantially increased C/S ratio (in excess of 0.955), allowing higher plant caustic concentrations and improved productivity. The loss of alumina due to the formation of unwanted calcium aluminate species is also greatly reduced.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: January 13, 2004
    Assignee: Worsley Alumina Pty LTD
    Inventors: Steven Philip Rosenberg, Darrel James Wilson, Catherine Ann Heath
  • Patent number: 6667270
    Abstract: Bismuth- and phosphorus-containing catalyst supports, naphtha reforming catalysts made from such supports, methods of making both support and catalyst, and a naphtha reforming process using such catalysts.
    Type: Grant
    Filed: May 22, 2002
    Date of Patent: December 23, 2003
    Assignee: Shell Oil Company
    Inventor: Peter Tanev Tanev
  • Patent number: 6656588
    Abstract: Doped, nanosize metal oxide particles have been shown to exhibit stimulated emission and continuous-wave laser action when energized appropriately, for example by electron beams. The doped particles are useful as solid state lasing devices and “laser paints”. Particles containing homogeneously distributed dopant atoms in concentrations greater than the thermodynamic solubility in the metal oxide matrix, and having in some circumstances, unusual oxidation states, have been produced.
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: December 2, 2003
    Assignee: The Regents of the University of Michigan
    Inventors: Richard M. Laine, Stephen C. Rand, Thomas Hinklin, Guy R. Williams
  • Publication number: 20030162016
    Abstract: A process for producing an ultrafine mixed-crystal oxide characterized by producing an ultrafine mixed crystal oxide comprising primary particles in a mixed crystal state with a BET specific surface area of 10 to 200 m2/g, comprising the step of subjecting a halogenated metal to high temperature oxidation with an oxidizing gas to produce a metal oxide by a vapor phase production method, wherein said halogenated metal is in the form of a mixed gas (a mixed halogenated metal gas) comprising at least two compounds having a different metal elements selected from the group consisting of chlorides, bromides, and iodides of titanium, silicon, and aluminum, and said mixed halogenated metal gas and said oxidizing gas are independently preheated to 500° C. or more prior to a reaction, a ultrafine mixed crystal oxide obtained by the process, and use of the oxide.
    Type: Application
    Filed: March 17, 2003
    Publication date: August 28, 2003
    Applicant: SHOWA DENKO K.K.
    Inventors: Jun Tanaka, Shinichiro Tomikawa
  • Patent number: 6572964
    Abstract: A process for producing an ultrafine mixed-crystal oxide characterized by producing an ultrafine mixed crystal oxide comprising primary particles in a mixed crystal state with a BET specific surface area of 10 to 200 m2/g, comprising the step of subjecting a halogenated metal to high temperature oxidation with an oxidizing gas to produce a metal oxide by a vapor phase production method, wherein said halogenated metal is in the form of a mixed gas (a mixed halogenated metal gas) comprising at least two compounds having a different metal elements selected from the group consisting of chlorides, bromides, and iodides of titanium, silicon, and aluminum, and said mixed halogenated metal gas and said oxidizing gas are independently preheated to 500° C. or more prior to a reaction, a ultrafine mixed crystal oxide obtained by the process, and use of the oxide.
    Type: Grant
    Filed: February 5, 2001
    Date of Patent: June 3, 2003
    Assignee: Showa Denko K.K.
    Inventors: Jun Tanaka, Shinichiro Tomikawa
  • Patent number: 6533966
    Abstract: Suspensions and powders based on indium tin oxide are prepared by a method in which indium tin oxide precursors are precipitated from solutions in one or more solvents in the presence of one or more surface-modifying components, the solvent(s) are removed from the precipitate, which is then calcined, one or more surface-modifying components and one or more solvents are added, the mixture is comminuted or dispersed to form a suspension, and the liquid components are separated from the suspension to give a powder. The powder may be converted into a moulding by a shaping process. The materials prepared by this method are especially suitable as coating materials for use in microelectronics and optoelectronics.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: March 18, 2003
    Assignee: Institut für Neue Materialien gem. GmbH
    Inventors: Ralph Nonninger, Christian Goebbert, Helmut Schmidt, Robert Drumm, Stefan Sepeur
  • Patent number: 6521016
    Abstract: The present invention relates to a method of producing nanophase Cu—Al2O3 composite powder by means of 1) the producing precursor powders by centrifugal spray drying process using the water base solution, in which Cu-nitrate (Cu(NO3)23H2O) and Al-Nitrate (Al(NO3)39H2O) are solved to the point of final target composition (Cu-1 wt %/Al2O3),2) the heat treatment process (desaltation process) at the 850° C. for 30 min in air atmosphere to remove the volatile components such as the moisture and NO3 group in precursor powder and simultaneously to synthesize the nano CuO—Al2O3 composite powders by the oxidation of corresponded metal components and 3) the reduction heat treatment of CuO at 200° C. for 30 min in reducing atmosphere to produce the final nanophase Cu—Al2O3 composite powders with the size below 20 nm.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: February 18, 2003
    Assignee: Korea Institute of Machinery and Materials
    Inventors: Byoung Kee Kim, Dong Won Lee
  • Patent number: 6500364
    Abstract: In one embodiment of the present invention, the material is a non-linear optical compound with a general chemical formula (&Sgr;iM&agr;i1)(&Sgr;jM&bgr;j2)(&Sgr;kM&ggr;k3)Be2O5  Formula 1 wherein M1, M2, and M3 are mono-, di-, or tri-valent metal ions respectively; wherein (&Sgr;i&bgr;i)=X and ranges from 0 to 6, (&Sgr;j&bgr;j)=Y and ranges from 0 to 3, and (&Sgr;k&ggr;k)=Z and ranges from 0 to 2, (hereinafter referred to as “MBE2O5” compounds).
    Type: Grant
    Filed: March 12, 2001
    Date of Patent: December 31, 2002
    Assignee: ReyTech Corporation
    Inventors: Thomas A. Reynolds, Theodore Alekel, Douglas A. Keszler