Iron Patents (Class 423/632)
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Patent number: 7939463Abstract: A process for producing a high surface area iron material, comprising predominantly low crystalline iron oxides, starting with a low surface area iron metal is disclosed. The iron material of the present invention has a surface area of at least about 200 m2/g, and is prepared via a method which comprises reacting a low surface area iron metal with oxygen and an organic acid. The high surface area iron material formed via this method is essentially free of contaminants.Type: GrantFiled: January 29, 2007Date of Patent: May 10, 2011Assignee: Sud-Chemie Inc.Inventors: Robert J. O'Brien, Samantha E. Sargent, Guido Petrini, Esterino Conca
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Publication number: 20110076223Abstract: A method for producing a ferrate solution by producing a ferrate intermediate material and then combining the intermediate material with a halogen or ozone solution.Type: ApplicationFiled: September 27, 2010Publication date: March 31, 2011Applicant: FLORIDA INSTITUTE OF TECHNOLOGYInventor: Virender K. Sharma
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Patent number: 7910085Abstract: The process for production of iron oxyhydroxide particles according to the invention is characterized by comprising a step (A) in which a suspension containing iron(II) is prepared, and a step (B) in which fine bubbles with diameters of 0.05-500 ?m are generated in the suspension to form a reaction mixture, and the iron(II) in the reaction mixture is oxidized by the bubbles to produce iron oxyhydroxide particles.Type: GrantFiled: December 23, 2008Date of Patent: March 22, 2011Assignee: TDK CorporationInventor: Mika Kawase
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Patent number: 7901657Abstract: The invention relates to amphiphilic, nanoscalar particles comprising lipophilic hydrolyzable groups on their surface. The invention also relates to methods for producing amphiphilic, nanoscalar particles and to compositions containing said particles.Type: GrantFiled: February 25, 2005Date of Patent: March 8, 2011Assignee: Leibniz-Institut Fuer Neue Materialien Gemeinnuetzige GmbHInventors: Ertugrul Arpac, Helmut Schmidt, Murat Akarsu
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Patent number: 7892447Abstract: Nanoplatelet forms of metal hydroxide and metal oxide are provided, as well as methods for preparing same. The nanoplatelets are suitable for use as fire retardants and as agents for chemical or biological decontamination.Type: GrantFiled: August 9, 2007Date of Patent: February 22, 2011Assignee: Aqua Resources CorporationInventor: Orville Lee Maddan
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Patent number: 7892520Abstract: The present disclosure includes a method for preparing an aqueous dispersion of ?-Fe2O3 nanoparticles. The method includes grinding an iron (II) hydrated salt, an iron (III) hydrated salt, an inorganic salt, and alkali hydroxide in a grinding or milling machine. The inorganic salt may be a salt matrix that prevents growth and aggregation of the synthesized nanoparticles. The aqueous dispersion of ?-Fe2O3 nanoparticles may optionally be hydrothermally treated to become an aqueous dispersion of ?-Fe2O3 nanoparticles. Also disclosed is a method for preparing an mixture of ?-Fe2O3 nanoparticles and ?-Fe2O3 nanoparticles, in which at least an iron (III) hydrated salt, an inorganic salt, and alkali hydroxide are ground in a grinding or milling machine. Uses for the nanoparticles include: a magnetic resonance image contrast agent, a color print ink, an artificial tanning pigment, a photocatalyst for degradation of organic dye, a red pigment, an adsorbent for waste water treatment, a catalyst support, and a catalyst.Type: GrantFiled: July 27, 2007Date of Patent: February 22, 2011Assignee: The Hong Kong University of Science and TechnologyInventors: Jun Lu, Ka Ming Ng, Shihe Yang
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Patent number: 7867471Abstract: A process of producing a ceramic powder including providing a plurality of precursor materials in solution, wherein each of the plurality of precursor materials in solution further comprises at least one constituent ionic species of a ceramic powder, combining the plurality of precursor materials in solution with an onium dicarboxylate precipitant solution to cause co-precipitation of the ceramic powder precursor in a combined solution; and separating the ceramic powder precursor from the combined solution. The process may further include calcining the ceramic powder precursor.Type: GrantFiled: April 3, 2009Date of Patent: January 11, 2011Assignee: SACHEM, Inc.Inventor: Wilfred Wayne Wilson
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Publication number: 20110003085Abstract: A porous metal oxide is formed by creating a metal oxide material with a hydrolysis reaction in solution. The hydrolysis reaction or reaction products of a metal oxide precursor react simultaneously or in conjunction with a metal salt or a disassociation species of a metal salt. The metal oxide material is conditioned, and is refined to produce metal oxide particles having a porous structure containing crystallites.Type: ApplicationFiled: September 7, 2010Publication date: January 6, 2011Applicant: CARRIER CORPORATIONInventors: Treese Hugener-Campbell, Thomas Henry Vanderspurt, Wayde R. Schmidt, Steven M. Zhitnik
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Publication number: 20100303730Abstract: A method of making iron-containing nanoparticles (e.g., magnetite nanoparticles) that includes contacting an iron-containing precursor with a reducing agent at a temperature less than 200° C. and allowing the mixture to react to form magnetite nanoparticles.Type: ApplicationFiled: February 22, 2010Publication date: December 2, 2010Inventors: Torsten Hegmann, Vinith Yathindranath, David F. Moore, Johan Van Lierop
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Publication number: 20100278720Abstract: The present invention includes a method of producing a crystalline metal oxide nanostructure. The method comprises providing a metal salt solution and providing a basic solution; placing a porous membrane between the metal salt solution and the basic solution, wherein metal cations of the metal salt solution and hydroxide ions of the basic solution react, thereby producing a crystalline metal oxide nanostructure.Type: ApplicationFiled: May 4, 2010Publication date: November 4, 2010Inventors: Stanislaus S. Wong, Hongjun Zhou
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Patent number: 7820124Abstract: A material comprising a plurality of nanoparticles. Each of the plurality of nanoparticles includes at least one of a metal phosphate, a metal silicate, a metal oxide, a metal borate, a metal aluminate, and combinations thereof. The plurality of nanoparticles is substantially monodisperse. Also disclosed is a method of making a plurality of substantially monodisperse nanoparticles. The method includes providing a slurry of at least one metal precursor, maintaining the pH of the slurry at a predetermined value, mechanically milling the slurry, drying the slurry to form a powder; and calcining the powder at a predetermined temperature to form the plurality of nanoparticles.Type: GrantFiled: October 5, 2006Date of Patent: October 26, 2010Assignee: General Electric CompanyInventors: Kalaga Murali Krishna, Sergio Paulo Martins Loureiro, Mohan Manoharan, Geetha Karavoor, Shweta Saraswat
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Publication number: 20100266485Abstract: A process comprises (a) combining (1) at least one base and (2) at least one metal carboxylate salt comprising (i) a metal cation selected from metal cations that form amphoteric metal oxides or oxyhydroxides and (ii) a lactate or thiolactate anion, or metal carboxylate salt precursors comprising (i) at least one metal salt comprising the metal cation and a non-interfering anion and (ii) lactic or thiolactic acid, a lactate or thiolactate salt of a non-interfering, non-metal cation, or a mixture thereof; and (b) allowing the base and the metal carboxylate salt or metal carboxylate salt precursors to react.Type: ApplicationFiled: December 16, 2008Publication date: October 21, 2010Inventor: Timothy D. Dunbar
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Patent number: 7811545Abstract: The present invention is directed to a process for making nanoparticles of metals, metal alloys, metal oxides and multi-metallic oxides, which comprises the steps of reacting a metal salt dissolved in water with an alkali metal salt of C4-25 carboxylic acid dissolved in a first solvent selected from the group consisting of C5-10 aliphatic hydrocarbon and C6-10 aromatic hydrocarbon to form a metal carboxylate complex; and heating the metal carboxylate complex dissolved in a second solvent selected from the group consisting of C6-25 aromatic, C6-25 ether, C6-25 aliphatic hydrocarbon and C6-25 amine to produce the nanoparticles.Type: GrantFiled: November 23, 2005Date of Patent: October 12, 2010Assignee: Seoul National University Industry FoundationInventors: Taeg-Hwan Hyeon, Jong-Nam Park
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Publication number: 20100254914Abstract: The disclosure provides elongated nanostructures useful for biological imaging and measurement. More particularly the disclosure provides nanoworms having an increased bioavailability compared to nanospheres.Type: ApplicationFiled: February 25, 2010Publication date: October 7, 2010Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Ji-Ho Park, Lianglin Zhang, Austin M. Derfus, Michael J. Sailor, Geoffrey A. Von Maltzahn, Todd Harris, Sangeeta N. Bhatia, Dmitri Simberg
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Publication number: 20100254875Abstract: A material comprising a plurality of nanoparticles. Each of the plurality of nanoparticles includes at least one of a metal phosphate, a metal silicate, a metal oxide, a metal borate, a metal aluminate, and combinations thereof. The plurality of nanoparticles is substantially monodisperse. Also disclosed is a method of making a plurality of substantially monodisperse nanoparticles. The method includes providing a slurry of at least one metal precursor, maintaining the pH of the slurry at a predetermined value, mechanically milling the slurry, drying the slurry to form a powder; and calcining the powder at a predetermined temperature to form the plurality of nanoparticles.Type: ApplicationFiled: October 5, 2006Publication date: October 7, 2010Inventors: Kalaga Murali Krishna, Sergio Paulo Martins Loureiro, Mohan Manoharan, Geetha Karavoor, Shweta Saraswat
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Publication number: 20100247609Abstract: Pharmaceutical compositions for oral administration, in particular administration as an oral delivery system to be swallowed directly or capable of disintegration in the oral cavity, comprising iron oxy-hydroxide in high loading.Type: ApplicationFiled: November 13, 2008Publication date: September 30, 2010Inventors: Ludwig Daniel Weibel, Erik Philipp
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Publication number: 20100248297Abstract: Particles and manufacturing methods thereof are provided. The manufacturing method of the particle includes providing a precursor solution containing a precursor dissolved in a solution, and irradiating the precursor solution with a high energy and high flux radiation beam to convert the precursor to nano-particles. Particles with desired dispersion, shape, and size are manufactured without adding a stabilizer or surfactant to the precursor solution.Type: ApplicationFiled: August 22, 2009Publication date: September 30, 2010Inventors: Yeu-Kuang Hwu, Chang-Hai Wang, Chi-Jen Liu, Cheng-Liang Wang, Chi-Hsiung Chen, Chung-Shi Yang, Hong-Ming Lin, Jung-Ho Je, Giorgio Margartondo
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Publication number: 20100247423Abstract: The present invention relates to a goethite nanotube. Particularly, the present invention is directed to goethite nanotubes, which can be used as a catalyst relating to environment or a drug delivery system, and process for preparing the goethite nanotube, and process for preparing magnetite and hematite nanoparticles.Type: ApplicationFiled: October 24, 2008Publication date: September 30, 2010Applicant: SEOUL NATIONAL UNIVERSITY INDUSTRY FOUNDATIONInventors: Taeghwan Hyeon, Taekyung Yu
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Patent number: 7799125Abstract: The present invention relates to improved yellow iron oxide pigments and to their use.Type: GrantFiled: August 20, 2008Date of Patent: September 21, 2010Assignee: LANXESS Deutschland GmbHInventors: Carsten Rosenhahn, Robert Madersdorfer, Ingo Schnellrath, Sergio dal alba Guazzelli
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Publication number: 20100230360Abstract: A novel anion adsorbent with extremely high anion adsorptive power, composed mainly of iron as a metal excellent in biosafety, is provided. The anion adsorbent contains, as an active ingredient, amorphous ferric hydroxide produced under such conditions that a ferrous species is present.Type: ApplicationFiled: June 29, 2006Publication date: September 16, 2010Applicant: Createrra Inc.Inventor: Tomotaka Yanagita
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Publication number: 20100210449Abstract: A desulfurizer containing at least a composition of a highly concentrated amorphous iron oxide hydroxide as the active ingredient. A method for preparing a composition containing at least a highly concentrated amorphous iron oxide hydroxide. A method for regenerating the desulfurizer. The desulfurizer contains at least the composition of a highly concentrated amorphous iron oxide hydroxide as the active ingredient and a binder. The composition and the desulfurizer have a high sulfur capacity and can be regenerated. This saves resources and reduces environmental pollution. The method for regenerating the desulfurizer includes at least the following steps: a) mixing a solid soluble ferrous salt with a solid hydroxide, b) kneading the mixture and allowing it to react at temperatures not exceeding 90° C., c) drying in air, d) washing with water and filtering to yield a solid, and e) drying naturally or roasting the solid.Type: ApplicationFiled: April 29, 2010Publication date: August 19, 2010Applicant: Bejing Sanju Environmental Protection and New Material Co., Ltd.Inventors: Zhenyi LIU, Xiangsheng WANG
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Patent number: 7754383Abstract: A negative electrode material for a non-aqueous electrolyte secondary battery comprising an alloy including silicon and a transition metal selected from the group consisting of titanium, zirconium, vanadium, molybdenum, tungsten, iron, and nickel; and a silicon oxide film and an oxide film of the transition metal formed on a surface of the alloy wherein the alloy includes an A phase including silicon and a B phase including a crystalline alloy of silicon and the transition metal. The negative electrode material has a silicon oxide film and an oxide film of the transition metal on the surface of the alloy wherein the thickness ratio of the transition metal oxide film to the silicon oxide film is at least 0.44 and smaller than 1.Type: GrantFiled: December 12, 2006Date of Patent: July 13, 2010Assignee: Panasonic CorporationInventors: Teruaki Yamamoto, Masaki Hasegawa, Yasuhiko Bito
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Patent number: 7744848Abstract: A process of producing magnetite with a high purity of greater than 90% magnetite, more typically greater than 98% magnetite, by reducing powdered hematite into magnetite under maximum temperatures of about 700 to 1300° C. against a counter-current of or concurrent with methane or natural gas in a heating device. The amount of methane used to reduce the hematite may be about 0.18 and 1.8 standard cubic feet of methane per pound of hematite. A product of high purity methane produced from the process is also provided, where the magnetite is below 1 ?M in diameter and has a magnetic saturation greater than 90.0 emu/g. Corresponding apparatus using an improved feeder system for powdered hematite is provided.Type: GrantFiled: November 15, 2005Date of Patent: June 29, 2010Assignee: Pittsburgh Mineral & Environment Technology, Inc.Inventors: Dale L. Nickels, Michael E. Sawayda, Thomas E. Weyand
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Publication number: 20100140179Abstract: To provide a recovery agent for recovering arsenic, fluorine, lead, and selenium from a solution containing environmentally hazardous substances including arsenic and fluorine. A porous iron oxide having a particle size of 10 to 100 ?m and a specific surface area of 50 m2/g or larger determined by three-point BET method is introduced into a solution containing the environmentally hazardous substances. Alternatively, a solution containing the environmentally hazardous substances is passed through a column filled with the porous iron oxide. Thus, the environmentally hazardous substances are recovered from the solution.Type: ApplicationFiled: March 26, 2008Publication date: June 10, 2010Applicant: Dowa Metals & Minning Co., Ltd.Inventors: Tetsuo Fujita, Ryoichi Taguchi, Hisashi Kubo
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Patent number: 7727500Abstract: Disclosed are adhesive coating compositions containing a metal peroxide for producing clear colorless adhesive coatings on substrates, particularly micro particulate substrates. In one preferred embodiment the nanoparticle coatings are chemically active and function at a high level of efficiency due to the high total surface area of the micro particulate substrate. Also disclosed are coated substrates and compositions having nanoparticles bound to a substrate by the coating compositions.Type: GrantFiled: March 8, 2007Date of Patent: June 1, 2010Assignee: PURETI, Inc.Inventor: John W. Andrews
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Publication number: 20100119429Abstract: Methods of preparing metal oxide nanoparticles are described. The methods involve the thermal decomposition of a metal-carboxylate complex within a continuous, flow-through, tubular reactor. The resulting metal oxide nanoparticles contain iron and can be magnetic, non-agglomerated, crystalline or a combination thereof.Type: ApplicationFiled: February 28, 2007Publication date: May 13, 2010Inventors: Sarah M. Mullins, Grant F. Tiefenbruck, Danny B. Anderson
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Patent number: 7712471Abstract: Smoking article components, cigarettes, methods for making cigarettes and methods for smoking cigarettes are provided that use transition metal oxide clusters capable of catalyzing and/or oxidizing the conversion of carbon monoxide to carbon dioxide and/or adsorbing carbon monoxide. Cut filler compositions, cigarette paper and cigarette filter material can comprise transition metal oxide clusters.Type: GrantFiled: March 11, 2005Date of Patent: May 11, 2010Assignee: Philip Morris USA Inc.Inventors: Budda V. Reddy, Firooz Rasouli, Mohammad R. Hajaligol, Shiv N. Khanna
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Publication number: 20100055016Abstract: Provided is a method of manufacturing oxide-based nano-structured materials using a chemical wet process, and thus, the method can be employed to manufacture oxide-based nano-structured materials having uniform composition and good electrical characteristics in large quantities, the method having a relatively simple process which does not use large growing equipment. The method includes preparing a first organic solution that comprises a metal, mixing the first organic solution with a second organic solution that contains hydroxyl radicals (—OH), filtering the mixed solution using a filter in order to extract oxide-based nano-structured materials formed in the mixed solution, drying the extracted oxide-based nano-structured materials to remove any remaining organic solution, and heat treating the dried oxide-based nano-structured materials.Type: ApplicationFiled: February 1, 2008Publication date: March 4, 2010Inventors: Sang-Hyeob Kim, Hye-Jin Myoung, Sung-Lyul Maeng, G.A.J. Amaratunga, Sunyoung Lee
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Publication number: 20100028236Abstract: There is disclosed a process of making nano-sized or micro-sized precipitate particles. The process comprising the steps of mixing, in a reaction zone, a metal salt solution with a precipitant solution to form a precipitate, said precipitate being at least one of a metal chalcogenide, metal hydroxide and metal oxide; and applying a shear force to said mixing solutions in said reaction zone during said mixing step, wherein said shear force and the conditions within said reaction zone form said nano-sized or micro-sized precipitate particles.Type: ApplicationFiled: October 2, 2007Publication date: February 4, 2010Applicant: NANOMATERIALS TECHNOLOGY PTE LTDInventors: Zhigang Shen, Jiyao Zhang, Giawen Sim, Jimmy Sung Lai Yun, Jianfeng Chen
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Publication number: 20100028674Abstract: Nanofibers and methods for making the nanofibers are described. Porous metal oxide nanofibers and porous metal oxide nanofibers comprising metal nanoparticles made via electrospinning methods are also described.Type: ApplicationFiled: July 31, 2008Publication date: February 4, 2010Inventor: Fredrick O Ochanda
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Publication number: 20100003203Abstract: The present invention relates to methods of producing surface-modified nanoparticulate particles at least of one metal oxide, metal hydroxide and/or metal oxide hydroxide, and aqueous suspensions of these particles. The invention further relates to the surface-modified nanoparticulate particles, obtainable by these methods, at least of one metal oxide, metal hydroxide and/or metal oxide hydroxide and aqueous suspensions of these particles, and to their use for cosmetic sunscreen preparations, as stabilizer in plastics and as antimicrobial active ingredient.Type: ApplicationFiled: October 10, 2007Publication date: January 7, 2010Applicant: BASF SEInventors: Andrey Karpov, Hartmut Hibst, Jutta Kissel, Bernd Bechtloff, Hartwig Voss, Kerstin Schierle-Arndt, Valerie Andre
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Publication number: 20090324487Abstract: Highly pure iron oxides are prepared by reaction of metallic iron, in the form of microspheroidal particles or of scraps or cuttings, with an agitated aqueous solution of a mono- or polycarboxylic acid with a pKa of 0.5 to 6 relative to the first carboxyl and capable of decomposing, by heating in air at 200 to 350° C., to carbon dioxide and water, using 0.03 to 1.5 moles of acid per g-atoms of iron, a water/iron weight ration of 1 to 20, and by oxidation of the ferrous carboxilate to ferric salt, with an agent selected from oxygen, mixtures containing oxygen, hydrogen peroxide, organic peroxides and hydroperoxides.Type: ApplicationFiled: July 11, 2008Publication date: December 31, 2009Applicant: SUD Chemie MT S.r.l.Inventors: Esterino Conca, Carlo Rubini, Guido Petrini
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Patent number: 7618609Abstract: Increased lithium capacity of defective oxide materials and methods for preparation are described herein. Point defects may be introduced into a metal oxide to increase its lithium ion capacity. Defective metal oxides can be prepared by heating the metal oxide under O2/H2O at elevated temperatures. These increased lithium capacity metal oxides may be suitable for use as high specific energy cathodes in lithium metal and lithium ion batteries.Type: GrantFiled: January 16, 2002Date of Patent: November 17, 2009Assignee: The United States of America as represented by the Secretary of the NavyInventors: Karen Swider Lyons, Debra R. Rolison
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Publication number: 20090280191Abstract: The present invention provides agents for preventing, improving or treating phosphorus-related disorders and oral preparations; agents high in biosafety and phosphorus adsorptive power, which contain, as an active ingredient, ferric hydroxide as produced under such conditions that a ferrous species is present.Type: ApplicationFiled: June 29, 2006Publication date: November 12, 2009Applicant: J-PHARMA CO., LTD.Inventors: Hitoshi Endou, Tomotaka Yanagita, Koji Yamashita
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Patent number: 7597873Abstract: A process for the recovery of metal oxides from a solution containing metallic salts by spray roasting of these solutions. The process is particularly suitable for spray roasting spent pickling acids. The process feeds the solution to a reactor for spray roasting of the droplets in at least two stages, where at least one evaporation stage follows at least one conversion stage to convert the metal salts to metal oxides. The device for implementing the process includes a spray roasting reactor having a first heating zone to evaporate the water and a second heating zone to convert the metal salts to oxides.Type: GrantFiled: August 16, 2005Date of Patent: October 6, 2009Assignee: Andritz AGInventor: Albert Lebl
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Patent number: 7566436Abstract: A mixing reactor for mixing efficiently streams of fluids of differing densities. In a preferred embodiment, one of the fluids is supercritical water, and the other is an aqueous salt solution. Thus, the reactor enables the production of metal oxide nanoparticles as a continuous process, without any risk of the reactor blocking due to the inefficient mixing inherent in existing reactor designs.Type: GrantFiled: February 11, 2005Date of Patent: July 28, 2009Assignee: The University of NottinghamInventors: Edward Henry Lester, Barry James Azzopardi
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Publication number: 20090175782Abstract: The invention relates to a method for obtaining magnetite using red mud, which is produced by the method used by Bayer for the manufacture of aluminum. The method according to the invention comprises at least the reduction of hematite and/or goethite to form magnetite using at least one reductant, said reductant containing at least one vegetable oil and/or a fat and/or carbon.Type: ApplicationFiled: April 25, 2007Publication date: July 9, 2009Applicant: KRAUSE-ROHM-SYSTEME AGInventors: Eberhard Krause, Valentin Rohm
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Patent number: 7553474Abstract: 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: GrantFiled: August 8, 2005Date of Patent: June 30, 2009Assignee: Nissan Chemical Industries, Ltd.Inventors: Yutaka Ohmori, Hirokazu Kato, Yoshinari Koyama, Kenji Yamaguchi
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Patent number: 7550297Abstract: The present invention present invention relates to improved IRIS Fe oxide paint compositions, to the dried (or cured) residue of such paints, and to devices upon which such paint compositions have been applied (IRIS devices) used to assess reducing conditions in soils, especially wetland soils. The improved IRIS Fe oxide paints contain from about 30 to about 70 mole percent goethite, more preferably, from about 40 to about 60 mole percent goethite, and still more preferably, about 50 mole percent goethite.Type: GrantFiled: February 26, 2007Date of Patent: June 23, 2009Assignee: University of Maryland, College ParkInventor: Martin C. Rabenhorst
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Patent number: 7547431Abstract: A method of producing high purity nanoscale powders in which the purity of powders produced by the method exceeds 99.99%. Fine powders produced are of size preferably less than 1 micron, and more preferably less than 100 nanometers. Methods for producing such powders in high volume, low-cost, and reproducible quality are also outlined. The fine powders are envisioned to be useful in various applications such as biomedical, sensor, electronic, electrical, photonic, thermal, piezo, magnetic, catalytic and electrochemical products.Type: GrantFiled: December 10, 2002Date of Patent: June 16, 2009Assignee: PPG Industries Ohio, Inc.Inventors: Tapesh Yadav, Karl Pfaffenbach
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Publication number: 20090142256Abstract: A method capable of easily producing a nanostructured material having regular nanoscale arrangement. The method comprises a raw material solution preparation step of preparing a raw material solution by dissolving, in a solvent, a block copolymer comprising a polymer block component “A” and a polymer block component “B” which are immiscible to each other, and an inorganic precursor which coordinates with the polymer block component “A” but does not coordinate with the polymer block component “B”; and a nanostructure-forming step of forming a nanophase-separated structure “10” in which a polymer phase “1A” comprising the polymer block component “A” with which the inorganic precursor is coordinated, and a polymer phase “1B” comprising the polymer block component “B” are regularly arranged by self-assembly. A nanostructured material can be obtained by this method.Type: ApplicationFiled: November 26, 2008Publication date: June 4, 2009Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Hiroaki WAKAYAMA, Yoshiaki FUKUSHIMA
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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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Publication number: 20090108229Abstract: Magnetite powders are manufactured by first forming a precursor mixture containing iron atoms bonded to organic control agent molecules. Thereafter, magnetite is formed by (i) causing or allowing the iron atoms in the precursor mixture to form iron particles and (ii) reducing the iron atoms using a reducing agent. The magnetite powders obtained using the methods of the invention are superparamagnetic and can have very low densities. In one embodiment, the magnetite powders include a carbon coating on the magnetite particles which makes the particles resistant to being oxidized.Type: ApplicationFiled: October 26, 2007Publication date: April 30, 2009Applicant: HEADWATERS TECHNOLOGY INNOVATION, LLCInventors: Brett Silverman, Bing Zhou
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Publication number: 20090090886Abstract: The present invention relates to nanostructures, in particular to hematite rhombohedra and iron/magnetite nanocomposites, and methods of making same.Type: ApplicationFiled: October 9, 2007Publication date: April 9, 2009Inventors: Stanislaus S. Wong, Tae-Jin Park
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Patent number: 7504082Abstract: Magnetic nanoparticles are applicable in imaging, diagnosis, therapy, and biomaterial separation. The magnetic nanoparticles are represented as (FewGdx)vZy, wherein w is from 99.9% to 97.5%, x is from 0.1% to 2.5%, Z is an element of the group VIa, and v, y are positive numbers.Type: GrantFiled: January 20, 2006Date of Patent: March 17, 2009Assignee: Industrial Technology Research instituteInventors: Hui-Ju Cho, Sheng-Ming Shih, Yuh-Jiuan Lin, Hong-Dun Lin, Kang-Ping Lin
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Publication number: 20090050245Abstract: A process of producing an infrared radiation-generating decoy for protecting against heat-seeking missiles and other heat-seeking devices comprises the step of decomposing a metal carboxy compound in the substantial absence of gaseous oxygen, to produce a pyrophoric material as a decomposition product of the metal carboxy compound, which pyrophoric material is arranged to combust spontaneously upon contact with air when the decoy is used. The metal carboxy compound may be iron oxalate, and the pyrophoric material may be ferrous oxide. The pyrophoric material may be coated onto a substrate, and a plurality of coated substrate pieces may be used in a decoy.Type: ApplicationFiled: November 16, 2006Publication date: February 26, 2009Applicant: Chemring Countermeasures LimitedInventor: Alexander Kit Lay
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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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Publication number: 20090028770Abstract: The present invention provides a method for advantageously producing an iron oxyhydroxide exhibiting excellent capability of adsorbing harmful substances, such as a phosphrous components and endocrine disrupting chemicals, which are contained in industrial wastewater, exhaust gases, etc., and an adsorbent material comprising the iron oxyhydroxide produced by the method as a main component. Specifically, the present invention provides an adsorbent material produced by a method comprising the steps of: (a) adding a base to an aqueous iron ion-containing solution, adjusting the pH of the resultant mixture to 9 or less, to form a precipitate that contains an iron oxyhydroxide; (b) drying the precipitate at a temperature of 100° C. or lower to obtain an iron oxyhydroxide; (c) contacting the resultant iron oxyhydroxide with water; and (d) subjecting the resultant iron oxyhydroxide to a heat treatment under a gas atmosphere having an inert gas concentration of 80% or greater at a temperature of 100 to 280° C.Type: ApplicationFiled: February 16, 2006Publication date: January 29, 2009Applicants: JAPAN SCIENCE AND TECHNOLOGY AGENCY, SHIGA PREFECTURE INDUSTRIAL SUPPORT CENTER, KYOTO UNIVERSITYInventors: Kazuhiro Mae, Taisuke Maki, Atsushi Yamamoto
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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: 20080305101Abstract: Disclosed are compositions and methods related to clot binding compounds. The disclosed targeting is useful for treatment of cancer and other diseases and disorders.Type: ApplicationFiled: December 31, 2007Publication date: December 11, 2008Inventors: Erkki Ruoslahti, Dmitri Simberg
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Patent number: 5136002Abstract: Disclosed is a resin composition comprising a copolymer [I] having a number average molecular weight of at least 15,000, which comprises at least 30 mole % of the following recurring units [A]: ##STR1## and a compound [II] having a number average molecular weight of at least 1,000, which is comprised of perfluoroalkylether recurring units [D]. This resin composition is used as a cladding of a core-clad optical fiber.Type: GrantFiled: April 26, 1991Date of Patent: August 4, 1992Assignee: Mitsubishi Rayon Company, Ltd.Inventors: Teruhiko Sugimori, Takashi Yamamoto, Tsuruyoshi Matsumoto, Katsuhiko Shimada