Cadmium (cd) Or Mercury (hg) Containing Patents (Class 423/594.18)
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Patent number: 11776970Abstract: Disclosed is a display device including a substrate including display and non-display areas, a first thin-film transistor located in the non-display area, and second and third thin-film transistors located in the display area. The first thin-film transistor includes a first semiconductor pattern, a first gate electrode overlapping the first semiconductor pattern, and first source and first drain electrodes connected to the first semiconductor pattern. The second thin-film transistor includes second and third semiconductor patterns including a first oxide semiconductor, a second gate electrode overlapping the second semiconductor pattern, a third gate electrode overlapping the third semiconductor pattern, and second source and second drain electrodes connected to the second and third semiconductor patterns.Type: GrantFiled: June 21, 2021Date of Patent: October 3, 2023Assignee: LG Display Co., Ltd.Inventors: Sung Soo Shin, Won Sang Ryu, Sang Gul Lee
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Patent number: 11728351Abstract: Disclosed is a display device including a substrate including display and non-display areas, a first thin-film transistor located in the non-display area, and second and third thin-film transistors located in the display area. The first thin-film transistor includes a first semiconductor pattern, a first gate electrode overlapping the first semiconductor pattern, and first source and first drain electrodes connected to the first semiconductor pattern. The second thin-film transistor includes second and third semiconductor patterns including a first oxide semiconductor, a second gate electrode overlapping the second semiconductor pattern, a third gate electrode overlapping the third semiconductor pattern, and second source and second drain electrodes connected to the second and third semiconductor patterns.Type: GrantFiled: June 21, 2021Date of Patent: August 15, 2023Assignee: LG Display Co., Ltd.Inventors: Sung Soo Shin, Won Sang Ryu, Sang Gul Lee
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Publication number: 20140332733Abstract: Provided herein are nanofibers and processes of preparing nanofibers. In some instances, the nanofibers are metal and/or ceramic nanofibers. In some embodiments, the nanofibers are high quality, high performance nanofibers, highly coherent nanofibers, highly continuous nanofibers, or the like. In some embodiments, the nanofibers have increased coherence, increased length, few voids and/or defects, and/or other advantageous characteristics. In some instances, the nanofibers are produced by electrospinning a fluid stock having a high loading of nanofiber precursor in the fluid stock. In some instances, the fluid stock comprises well mixed and/or uniformly distributed precursor in the fluid stock. In some instances, the fluid stock is converted into a nanofiber comprising few voids, few defects, long or tunable length, and the like.Type: ApplicationFiled: August 30, 2012Publication date: November 13, 2014Applicant: CORNELL UNIVERSITYInventors: Yong Lak Joo, Nathaniel S. Hansen, Daehwan Cho
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Publication number: 20140286846Abstract: A process for preparing a mesoporous metal oxide, i.e., transition metal oxide, Lanthanide metal oxide, a post-transition metal oxide and metalloid oxide. The process comprises providing a micellar solution comprising a metal precursor, an interface modifier, a hydrotropic ion precursor, and a surfactant; and heating the micellar solution at a temperature and for a period of time sufficient to form the mesoporous metal oxide. A mesoporous metal oxide prepared by the above process. A method of controlling nano-sized wall crystallinity and mesoporosity in mesoporous metal oxides. The method comprises providing a micellar solution comprising a metal precursor, an interface modifier, a hydrotropic ion precursor, and a surfactant; and heating the micellar solution at a temperature and for a period of time sufficient to control nano-sized wall crystallinity and mesoporosity in the mesoporous metal oxides. Mesoporous metal oxides and a method of tuning structural properties of mesoporous metal oxides.Type: ApplicationFiled: September 25, 2013Publication date: September 25, 2014Applicant: UNIVERSITY OF CONNECTICUTInventors: Steven L. Suib, Altug Suleyman Poyraz
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Publication number: 20140110714Abstract: The present invention generally relates to an amorphous semiconductor material and TFTs containing the material. The semiconductor material contains a single cation, such as zinc, and multiple anions. For the multiple anions, only one of the anions can be oxygen or nitrogen. The anions compete with each other to twist the resulting structure. For example, if one of the anions bonded with the cation would result in a cubic structure, and another of the anions bonded with the cation would result in a hexagonal structure, the competing anions would twist the resulting structure so that the structure remains amorphous rather than crystalline. Further, because a single cation is utilized, there is no grain boundary and thus, the material has a high mobility.Type: ApplicationFiled: September 27, 2013Publication date: April 24, 2014Applicant: APPLIED MATERIALS, INC.Inventor: Yan YE
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Patent number: 8664150Abstract: Methods of producing a metal oxide are disclosed. The method comprises dissolving a metal salt in a reaction solvent to form a metal salt/reaction solvent solution. The metal salt is converted to a metal oxide and a caustic solution is added to the metal oxide/reaction solvent solution to adjust the pH of the metal oxide/reaction solvent solution to less than approximately 7.0. The metal oxide is precipitated and recovered. A method of producing adsorption media including the metal oxide is also disclosed, as is a precursor of an active component including particles of a metal oxide.Type: GrantFiled: March 16, 2010Date of Patent: March 4, 2014Assignee: Battelle Energy Alliance, LLCInventors: Nicholas R. Mann, Troy J. Tranter
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Patent number: 8617510Abstract: Porous metal oxides are provided. The porous metal oxides are prepared by heat treating a coordination polymer. A method of preparing the porous metal oxide is also provided. According to the method, the shape of the particles of the metal oxide can be easily controlled, and the shape and distribution of pores of the porous metal oxide can be adjusted.Type: GrantFiled: May 20, 2010Date of Patent: December 31, 2013Assignee: Samsung SDI Co., Ltd.Inventors: Dong-min Im, Yong-nam Ham
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Patent number: 8597609Abstract: The present invention relates to a method for the preparation of a functionalized nano size transition metal oxide or sulfide particle comprising the steps of (a) providing a ternary solvent system comprising a polar solvent, a non-polar solvent and an intermediate solvent allowing miscibility of all three components; (b) providing a mixture of a transition metal salt and a ternary solvent; (c) providing a mixture of a suitable source of oxide or sulfide and the ternary solvent; (d) providing a mixture of a non-polar end capping agent and the non-polar solvent; (e) mixing the mixtures; and (f) recovering the resultant functionalized nano size transition metal oxide or sulfide particle. The invention further relates to non-polar end capped nano sized transition metal oxide or sulfide particle so produced and the use of such particles.Type: GrantFiled: May 22, 2007Date of Patent: December 3, 2013Assignee: Rubber Nano Products (Proprietary) LimitedInventors: Christopher Dennis Woolard, Damien Christopher Williams, Jason Leigh van Rooyen, Katherine Garde, Robert Michael Bosch, Stefanus Hendrik Josephus Strydom
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Patent number: 8574517Abstract: Method of separating recoverable material from products containing mercury. The method including crushing products to form crushed material, mixing crushed material with a liquid which has an oxidizing agent which has been chosen from a group which sodium hypochlorite, hydrogen peroxide and chlorates, oxidizing at least a portion of metallic mercury in the products for forming mercury oxide under influence of oxidizing agent. The method further includes separating a sludge, which sludge having formed mercury oxide, from at least a portion of the liquid.Type: GrantFiled: October 19, 2010Date of Patent: November 5, 2013Assignee: Midas Investments LimitedInventor: Per Christoffersson
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Publication number: 20130221289Abstract: The invention relates to a method for the preparation of nanoparticles in ionic liquids. Specifically, the invention relates to a simple, quick and effective method for the preparation of dispersions of nanoparticles (nanofluids) in an ionic liquid.Type: ApplicationFiled: July 29, 2011Publication date: August 29, 2013Applicant: UNIVERSIDADE DE SANTIAGO DE COMPOSTELAInventors: Alberto Arce Arce, Ana Soto Campos, Eva Rodil Rodriguez, Borja Rodriguez Cabo
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Patent number: 8491858Abstract: In some embodiments, the invention provides systems and methods for removing carbon dioxide and/or additional components of waste gas streams, comprising contacting the waste gas stream with an aqueous solution, removing carbon dioxide and/or additional components from the waste gas stream, and containing the carbon dioxide and/or additional components, in one form or another, in a composition. In some embodiments, the composition is a precipitation material comprising carbonates, bicarbonates, or carbonates and bicarbonates. In some embodiments, the composition further comprises carbonate and/or bicarbonate co-products resulting from co-processing SOx, NOx, particulate matter, and/or certain metals. Additional waste streams such as liquid, solid, or multiphasic waste streams may be processed as well.Type: GrantFiled: October 5, 2011Date of Patent: July 23, 2013Assignee: Calera CorporationInventors: William Randall Seeker, Brent Constantz, Vinod Khosla
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Patent number: 8318126Abstract: 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: GrantFiled: May 4, 2010Date of Patent: November 27, 2012Inventors: Stanislaus S. Wong, Hongjun Zhou
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Patent number: 8288309Abstract: A highly durable mercury oxidation catalyst contains V2O5 and MoO3 as active components, and is capable of preventing volatilization of MoO3 in the mercury oxidation catalyst. A method of producing the mercury oxidation catalyst is provided. A mercury oxidation catalyst oxidizing mercury in an exhaust gas into mercury oxide includes: TiO2 as a carrier, V2O5 and MoO3 supported on the carrier as active components, and at least one kind of element or compound selected from the group consisting of W, Cu, Co, Ni, and Zn or the compounds thereof supported on the carrier as a MoO3 volatilization preventing component.Type: GrantFiled: September 30, 2010Date of Patent: October 16, 2012Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Katsumi Nochi, Masanao Yonemura, Masashi Kiyosawa
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Patent number: 8263029Abstract: The invention provides a simple and cost-effective method for preparing particles such as anisotropic semiconductor nanoparticles (e.g. CdS) and devices thereof. The method comprises (i) dispersing at least part of particle-forming reactants in a self-organized medium such as surfactant-aqueous solution system, and (ii) conducting a particle-forming reaction using the particle-forming reactants dispersed in the self-organized medium under shear condition to form the particles. The anisotropic property of the particles is controlled at least partially by the shear condition. The invention may be used to prepare quantum dots in a liquid crystal, and various devices such as nonlinear optics, optoelectronic devices, and solar cells, among others.Type: GrantFiled: August 25, 2009Date of Patent: September 11, 2012Assignee: Kent State UniversityInventors: Antal Jakli, Stefanie Taushanoff, Mátyás Molnár, Attila Bóta, Erika Kalman, Peter Palinkás, legal representative, Andrea Palinkás, legal representative, Zoltan Varga
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Patent number: 8257679Abstract: A technique for bonding an organic group with the surface of fine particles such as nanoparticles through strong linkage is provided, whereas such fine particles are attracting attention as materials essential for development of high-tech products because of various unique excellent characteristics and functions thereof. Organically modified metal oxide fine particles can be obtained by adapting high-temperature, high-pressure water as a reaction field to bond an organic matter with the surface of metal oxide fine particles through strong linkage. The use of the same condition enables not only the formation of metal oxide fine particles but also the organic modification of the formed fine particles. The resulting organically modified metal oxide fine particles exhibit excellent properties, characteristics and functions.Type: GrantFiled: July 27, 2009Date of Patent: September 4, 2012Assignee: Tohoku Techno Arch Co., Ltd.Inventor: Tadafumi Ajiri
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Publication number: 20110287940Abstract: An optical element is disclosed which includes transparent superconductor material.Type: ApplicationFiled: April 9, 2009Publication date: November 24, 2011Inventor: Daniel Brandt
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Publication number: 20110280778Abstract: The present invention relates to a method of precipitation of metal ions. Mineral(s), oxide(s), hydroxide(s) of magnesium and/or calcium are adopted as raw materials, and the raw material(s) is processed through at least one step of calcination, slaking, or carbonization to produce aqueous solution(s) of magnesium bicarbonate and/or calcium bicarbonate, and then the solution(s) is used as precipitant(s) to deposit rare earth, such as nickel, cobalt, iron, aluminum, gallium, indium, manganese, cadmium, zirconium, hafnium, strontium, barium, copper and zinc ions. And at least one of metal carbonates, hydroxides or basic carbonates is obtained, or furthermore the obtained products are calcined to produce metal oxides. The invention takes the cheap calcium and/or magnesium minerals or their oxides, hydroxides with low purity as raw materials to instead common precipitants such as ammonium bicarbonate and sodium carbonate etc.Type: ApplicationFiled: February 9, 2010Publication date: November 17, 2011Inventors: Xiaowei Huang, Zhiqi Long, Hongwei Li, Dali Cui, Xinlin Peng, Guilin Yang, Yongke Hou, Chunmei Wang, Shunli Zhang
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Patent number: 8043584Abstract: Cd-112 isotope is recycled from a Cd-112 chemical separated solution or a remainder of an electroplating solution having a Cd-112 target. The present invention recycles Cd-112 isotope with a low cost, a high purity and a high recycle rate. The recycled Cd-112 isotope can be easily stored. And, the Cd-112 isotope can be used as an imaging agent in nuclear medicine.Type: GrantFiled: June 22, 2007Date of Patent: October 25, 2011Assignee: Atomic Energy Council - Institute of Nuclear Energy ResearchInventors: Wuu-Jyh Lin, Song-Un Tang
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Publication number: 20110108429Abstract: Cd-112 isotope is recycled from a Cd-112 chemical separated solution or a remainder of an electroplating solution having a Cd-112 target. The present invention recycles Cd-112 isotope with a low cost, a high purity and a high recycle rate. The recycled Cd-112 isotope can be easily stored. And, the Cd-112 isotope can be used as an imaging agent in nuclear medicine.Type: ApplicationFiled: June 22, 2007Publication date: May 12, 2011Applicant: ATOMIC ENERGY COUNCIL - INSTITUTE OF NUCLEAR ENERGY RESEARCHInventors: Wuu-Jyh Lin, Song-Un Tang
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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: 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: 20100270517Abstract: The present disclosure provides a solid dopant for doping a conductive polymer, which has a high dispersibility in a solvent by a plasma treatment, a method and an apparatus for preparing the solid dopants, a solid doping method of a conductive polymer using the solid dopants, and a solid doping method of a conductive polymer using plasma.Type: ApplicationFiled: April 23, 2010Publication date: October 28, 2010Applicants: ELPANI CO., LTD., AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATIONInventors: Yong Cheol Hong, Suck Hyun Lee, O. Pil Kwon, Tae Ja Kim
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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: 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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Patent number: 7780936Abstract: Process for manufacturing an electrochemical device including a cathode, an anode and at least one electrolyte membrane disposed between the anode and the cathode, wherein at least one of the cathode, the anode and the electrolyte membrane, contains at least a ceramic material.Type: GrantFiled: March 30, 2004Date of Patent: August 24, 2010Assignee: Pirelli & C. S.p.A.Inventors: Agustin Sin Xicola, A. Yuri Dubitsky, Enrico Albizzati, Evgeny Kopnin, Elena Roda
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Patent number: 7771684Abstract: CO2-sequestering formed building materials are provided. The building materials of the invention include a composition comprising a carbonate/bicarbonate component. Additional aspects of the invention include methods of making and using the CO2-sequestering formed building material.Type: GrantFiled: September 30, 2009Date of Patent: August 10, 2010Assignee: Calera CorporationInventors: Brent R. Constantz, Andrew Youngs, Terence C. Holland
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Patent number: 7713503Abstract: A system for removing mercury from combustion gas. The system includes a combustion device, a stack, and a duct system that couples the combustion device to the stack. The system further comprises an injection system that is coupled to the duct system. The injection system injects sorbents including alkali-based sorbents and carbon-based sorbents into the duct system.Type: GrantFiled: September 12, 2006Date of Patent: May 11, 2010Assignee: General Electric CompanyInventors: Peter Martin Maly, William Randall Seeker, Vitali Victor Lissianski, Bradley S. Rogers
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Patent number: 7704918Abstract: The invention relates to platinum-metal oxide composite particles and their use as electrocatalysts in oxygen-reducing cathodes and fuel cells. The invention particularly relates to methods for preventing the oxidation of the platinum electrocatalyst in the cathodes of fuel cells by use of these platinum-metal oxide composite particles. The invention additionally relates to methods for producing electrical energy by supplying such a fuel cell with an oxidant, such as oxygen, and a fuel source, such as hydrogen. The invention also relates to methods of making the metal-metal oxide composites.Type: GrantFiled: June 8, 2007Date of Patent: April 27, 2010Assignee: Brookhaven Science Associates, LLCInventors: Radoslav Adzic, Miomir Vukmirovic, Kotaro Sasaki
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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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Patent number: 7618603Abstract: A method for oxidizing elemental mercury contained in flue gas uses a catalytic barrier filter. The method comprises directing the flue gas towards the catalytic barrier filter; passing the flue gas through the catalytic barrier filter in the presence of an oxidant; and outletting the flue gas from the catalytic barrier filter, wherein about 50 percent to about 99 percent of the elemental mercury is oxidized.Type: GrantFiled: January 10, 2006Date of Patent: November 17, 2009Assignee: The University of North DakotaInventors: Wayne Seames, Michael D. Mann, Darrin S. Muggli
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Patent number: 7608237Abstract: A process for synthesizing nanostructures is disclosed. The process involves forming a liquid crystalline template by combining a block copolymer, a first reactant in a polar phase, and a nonpolar phase, then contacting the template with a gas phase composed of a second reactant, under conditions effective to form nanostructures.Type: GrantFiled: March 28, 2006Date of Patent: October 27, 2009Assignee: The Research Foundation of State University of New YorkInventors: Paschalis Alexandridis, Georgios N. Karanikolos, Triantafillos J. Mountziaris
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Patent number: 7585353Abstract: A method for reducing heavy metals, in particular in mercury, present in flue gases, includes the step of bringing the flue gases into contact with a particular class of sorbent material in the dry state. A preferred class of dry sorbent materials can be provided from a mineral compound selected from among halloysites and phyllosilicates of the palygorskite subgroup and the sepiolite subgroup of the palygorskite-sepiolite group according to the Dana classification. Mineral compounds of this group have been shown to provide a reduction in heavy metals, in particular in mercury, present in flue gases.Type: GrantFiled: March 14, 2005Date of Patent: September 8, 2009Assignee: S.A. Lhoist Recherche et DeveloppmentInventors: Amandine Gambin, Alain Laudet
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Publication number: 20090202427Abstract: Process for preparing mixed metal oxide powders Abstract Process for preparing a mixed metal oxide powder, in which oxidizable starting materials are evaporated in an evaporation zone of a reactor and oxidized in the vaporous state in an oxidation zone of this reactor, the reaction mixture is cooled after the reaction and the pulverulent solids are removed from gaseous substances, wherein at least one pulverulent metal, together with one or more combustion gases, is fed to the evaporation zone, the metal is evaporated completely in the evaporation zone under nonoxidizing conditions, an oxygen-containing gas and at least one metal compound are fed, separately or together, in the oxidation zone to the mixture flowing out of the evaporation zone, the oxygen content of the oxygen-containing gas being at least sufficient to oxidize the metal, the metal compound and the combustion gas completely.Type: ApplicationFiled: May 16, 2007Publication date: August 13, 2009Applicant: EVONIK DEGUSSA GMBHInventors: Stipan Katusic, Guido Zimmermann, Michael Krämer, Horst Miess, Edwin Staab
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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: 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: 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: 20080305025Abstract: The invention provides a method for the formation of small-size metal oxide particles, comprising the steps of: a) preparing a starting aqueous solution comprising at least one of metallic ion and complexes thereof, at a concentration of at least 0.1% w/w of the metal component; b) preparing a modifying aqueous solution having a temperature greater than 50° C.; c) contacting the modifying aqueous solution with the starting aqueous solution in a continuous mode in a mixing chamber to form a-modified system; d) removing the modified system from the mixing chamber in a plug-flow mode; wherein the method is characterized in that: i) the residence time in the mixing chamber is less than about 5 minutes; and iii) there are formed particles or aggregates thereof, wherein the majority of the particles formed are between about 2 nm and about 500 nm in size.Type: ApplicationFiled: December 21, 2006Publication date: December 11, 2008Applicant: Joma International ASInventors: Asher Vitner, Aharon Eyal
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Publication number: 20080233030Abstract: Process for manufacturing an electrochemical device including a cathode, an anode and at least one electrolyte membrane disposed between the anode and the cathode, wherein at least one of the cathode, the anode and the electrolyte membrane, contains at least a ceramic material.Type: ApplicationFiled: March 30, 2004Publication date: September 25, 2008Applicant: PIRELLI & C.S.P.A.Inventors: Agustin Sin Xicola, A. Yuri Dubitsky, Enrico Albizzati, Evgeny Kopnin, Elena Roda
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Publication number: 20080206124Abstract: Disclosed is a method of exfoliating a layered material (e.g., graphite and graphite oxide) to produce nano-scaled platelets having a thickness smaller than 100 nm, typically smaller than 10 nm, and often between 0.34 nm and 1.02 nm. The method comprises: (a) subjecting the layered material in a powder form to a halogen vapor at a first temperature above the melting point or sublimation point of the halogen at a sufficient vapor pressure and for a duration of time sufficient to cause the halogen molecules to penetrate an interlayer space of the layered material, forming a stable halogen-intercalated compound; and (b) heating the halogen-intercalated compound at a second temperature above the boiling point of the halogen, allowing halogen atoms or molecules residing in the interlayer space to exfoliate the layered material to produce the platelets.Type: ApplicationFiled: February 22, 2007Publication date: August 28, 2008Inventors: Bor Z. Jang, Aruna Zhamu
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Publication number: 20080202396Abstract: A method of removing mercury or mercury-containing material from flue gas produced by a coal-burning main furnace includes feeding coal, which contains mercury or mercury-containing material, to a main furnace which produces flue gas. The method further includes feeding the coal to an auxiliary burner which produces a slipstream of flyash, feeding the slipstream of flyash from the auxiliary burner into the flue gas produced by the main furnace, and introducing a mercury-active oxidant to the coal being fed to the auxiliary burner, the combustion air fed to the auxiliary burner, and/or the flyash.Type: ApplicationFiled: May 3, 2007Publication date: August 28, 2008Inventors: Allen A. Aradi, Michael W. Meffert
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Patent number: 7413719Abstract: The invention can be summarized as follows. There is provided a method for oxidizing elemental mercury in a combustion process comprising, adding a composition comprising an aluminum silicate to a combustion chamber, boiler or kiln downstream from the burner region combustion zone. There is further provided a method for reducing the emission of one or more heavy metals in a combustion process by adding a composition comprising an aluminum silicate to a combustion chamber downstream from the burner region combustion zone. There is also provided a composition comprising an aluminum silicate that may be employed to oxidize elemental mercury generated in a combustion process. The composition also may be employed to reduce the emission of one or more heavy metals generated in a combustion process.Type: GrantFiled: March 26, 2007Date of Patent: August 19, 2008Inventor: William Troy Digdon
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Patent number: 7357910Abstract: Method for producing metal oxide nanoparticles. The method includes generating an aerosol of solid metallic microparticles, generating plasma with a plasma hot zone at a temperature sufficiently high to vaporize the microparticles into metal vapor, and directing the aerosol into the hot zone of the plasma. The microparticles vaporize in the hot zone into metal vapor. The metal vapor is directed away from the hot zone and into the cooler plasma afterglow where it oxidizes, cools and condenses to form solid metal oxide nanoparticles.Type: GrantFiled: July 15, 2002Date of Patent: April 15, 2008Assignee: Los Alamos National Security, LLCInventors: Jonathan Phillips, Daniel Mendoza, Chun-Ku Chen
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Patent number: 7223377Abstract: The present invention is the method for preparation of transition metal oxide having micro-mesoporous structure whose average fine pores size is not less than 1 nm and not more than 2 nm comprising, adding and dissolving transition metal salt which is a precursor of transition metal oxide and/or metal alkoxide in the solution prepared by dissolving polymer surfactant in organic solvent, hydrolyzing said transition metal salt and/or metal alkoxide and preparing sol solution which is polymerized and self organized, then obtaining gel whose organization is stabilized from said sol solution and removing said polymer surfactant by using water of room temperature or water to which alkali metal or alkaline earth metal ion is added.Type: GrantFiled: October 2, 2002Date of Patent: May 29, 2007Assignee: Japan Science and Technology AgencyInventors: Kazunari Domen, Junko Nomura, Byonjin Ri
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Patent number: 7138098Abstract: 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: GrantFiled: October 8, 2004Date of Patent: November 21, 2006Assignee: Massachusetts Institute of TechnologyInventors: Moungi Bawendi, Nathan E. Stott
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Patent number: 7118727Abstract: The present invention provides a process for producing particles, such as oxide nanoparticles, in a substantially water-free environment. The process involves mixing at least one metal compound of the formula MX(m?n) with at least one surfactant and at least one solvent, wherein M is an electropositive element of Groups 1–15; each X is independently selected from the group consisting of O1/2, F, Cl, Br, I, OR, O2CR, NR2, and R; each R is independently a hydrocarbyl group; n is equal to ½ the oxidation state of the metal M in the product particle; and m is equal to the oxidation state of the element M. The components are typically combined to form a mixture which is thermally treated for a time period sufficient to convert the metal compound into particles of the corresponding oxide, having sizes in a range between about 0.5 nanometer and about 1000 nanometers.Type: GrantFiled: June 16, 2003Date of Patent: October 10, 2006Assignee: General Electric CompanyInventor: Darryl Stephen Williams
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Patent number: 7118726Abstract: A method of making an oxide compound, comprising subjecting a base material to a source of heat that produces a localized temperature in the range of 2,000 to 5,500 degrees Celsius that vaporizes the base material which is drawn upward above the surface of the base material where it oxidizes, after which the resulting oxide compound is collected. A method of making bismuth trioxide, comprising providing an electric arc between electrodes, wherein elemental bismuth is in touching proximity to one of the electrodes. The bismuth is evaporated, drawn upward off the surface of the molten metal, forms the bismuth oxide on contact with oxygen, and the particles of bismuth oxide are collected. A method of making an oxide using an electric arc to evaporate a base material which then reacts with oxygen, and collecting the resulting oxides of base material.Type: GrantFiled: April 4, 2003Date of Patent: October 10, 2006Assignee: Clark Manufacturing, LLCInventors: Jeffrey W. Clark, Larry B. Hunnel
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Patent number: 7087100Abstract: The present invention is a process for producing nanosized metal compounds. The preferred product is nanosized copper, nanosized copper (I) oxide, and nanosized copper (II) oxide. The process includes heating a copper metal precursor in a hydrocarbon preferably selected from alkylated benzenes, polyaromatic hydrocarbons, paraffins and/or naphthenic hydrocarbons. The heating is desirably at a temperature and time effective to convert, for example, the copper metal precursor to nanosized copper (II) oxide, nanosized copper (I) oxide and/or nanosized copper metal. Separation of the hydrocarbon is then performed. Recovering the solid product and recycle/reuse of the recovered hydrocarbon in subsequent preparations of nanosized metal and metal oxides may be performed. The nanosized metal oxides of the invention may additionally be converted to nanosized metal salts by reaction with the appropriate acids while dispersed in the hydrocarbons.Type: GrantFiled: October 9, 2001Date of Patent: August 8, 2006Assignee: General Electric CompanyInventors: Kenrick M. Lewis, Hua Yu, Regina Nelson Eng, Sabrina R. Cromer, Chi-Lin O'Young, Abellard T. Mereigh
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Patent number: 6984369Abstract: Disclosed is a process for making surfactant capped nanocrystals of metal oxides which are dispersable in organic solvents. The process comprises decomposing a metal cupferron complex of the formula MXCupX, wherein M is a metal, and Cup is a N-substituted N-Nitroso hydroxylamine, in the presence of a coordinating surfactant, the reaction being conducted at a temperature ranging from about 150 to about 400° C., for a period of time sufficient to complete the reaction. Also disclosed are compounds made by the process.Type: GrantFiled: November 22, 2000Date of Patent: January 10, 2006Assignee: The Regents of the University of CaliforniaInventors: A. Paul Alivisatos, Joerg Rockenberger