Alkaline Earth Metal Containing (mg, Ca, Sr, Or Ba) Patents (Class 423/430)
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Publication number: 20110054084Abstract: Hydraulic cement compositions that include a carbonate compound composition, e.g., a salt-water derived carbonate compound composition containing crystalline and/or amorphous carbonate compounds, are provided. Also provided are methods of making and using the hydraulic cements, as well as settable compositions, such as concretes and mortars, prepared therefrom. The cements and compositions produced therefrom find use in a variety of applications, including use in a variety of building materials and building applications.Type: ApplicationFiled: October 20, 2010Publication date: March 3, 2011Inventors: Brent R. Constantz, Cecily Ryan, Laurence Clodic
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Patent number: 7883552Abstract: Highly compactable granulations and methods for preparing highly compactable granulations are disclosed. More particularly, highly compactable calcium carbonate granulations are disclosed. The granulations comprise powdered materials such as calcium carbonate that have small median particle sizes. The disclosed granulations are useful in pharmaceutical and nutraceutical tableting and provide smaller tablet sizes upon compression than previously available.Type: GrantFiled: February 15, 2007Date of Patent: February 8, 2011Assignee: Delavau LLCInventors: Kevin W. Lang, Raya Levin, James W. Dibble, Gregory B. Murphy
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Patent number: 7863367Abstract: A surface treated calcium carbonate in which calcium carbonate is surface treated with a fatty acid surface treatment agent satisfying the following equation (a), and the surface treated calcium carbonate satisfying the following equation (b) is provided: C12+C14 85(%)??(a) and Pv 90(%),??(b) C12 is a ratio of a fatty acid surface treatment agent having an alkyl group of 12 carbon atoms, C14 is a ratio of a fatty acid surface treatment agent having an alkyl group of 14 carbon atoms, and Pv is a ratio of a volume (vol. %) precipitated in hexane. The surface treated calcium carbonate of the present invention can provide the resin compositions having slip resistance and slump resistance with a good balance between them, especially the resin compositions having an excellent slip resistance.Type: GrantFiled: October 3, 2003Date of Patent: January 4, 2011Assignee: Maruo Calcium Company LimitedInventors: Yoichi Takahashi, Yuusuke Hayashi, Katsunori Fukumoto
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Publication number: 20100330288Abstract: Disclosed are methods for reclaiming inorganic material from waste carpeting. The method comprises providing a waste carpeting composition comprising an inorganic filler component and an organic component. The waste carpeting is heat treated under conditions effective to separate at least a portion of the organic component from the waste carpeting composition and to provide a reclaimed inorganic filler composition at least substantially free of the organic component. Also disclosed are carpets comprising the reclaimed inorganic material reclaimed by the methods disclosed herein.Type: ApplicationFiled: May 10, 2010Publication date: December 30, 2010Inventors: Jeffery Segars, Jeffrey J. Wright, James Jarrett
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Patent number: 7850988Abstract: Highly compactable granulations and methods for preparing highly compactable granulations are disclosed. More particularly, highly compactable calcium carbonate granulations are disclosed. The granulations comprise powdered materials such as calcium carbonate that have small median particle sizes. The disclosed granulations are useful in pharmaceutical and nutraceutical tableting and provide smaller tablet sizes upon compression than previously available.Type: GrantFiled: October 25, 2006Date of Patent: December 14, 2010Assignee: Delavau LLCInventors: Kevin W. Lang, James W. Dibble, Raya Levin, Gregory B. Murphy
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Patent number: 7833928Abstract: The invention relates to a metal-containing, hydrogen-storing material which contains a catalyst for the purpose of hydration or dehydration, said catalyst being a metal carbonate. The method for producing such a metal-containing, hydrogen-storing material is characterized by subjecting the metal-containing material and/or the catalyst in the form of a metal carbonate to a mechanical milling process.Type: GrantFiled: August 12, 2004Date of Patent: November 16, 2010Assignee: GKSS-Forschungszentrum Geesthacht GmbHInventors: Gagik Barkhordarian, Thomas Klassen, Rüdiger Bormann
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Publication number: 20100282127Abstract: The present invention relates to a process for the preparation of a pigment comprising a surface-reacted precipitated calcium carbonate (PCC), the process comprising the steps of a) providing at least one precipitated calcium carbonate (PCC)-comprising pigment; b) providing H3O+ ions; c) providing at least one anion being capable of forming water-insoluble calcium salts, said anion being solubilised in an aqueous medium; d) contacting said PCC-comprising pigment, with said H3O+ ions and with said solubilised anions in an aqueous medium to form a slurry of surface-reacted PCC-comprising pigment, wherein said surface-reacted PCC comprises an insoluble, at least partially crystalline calcium salt of said anion formed on the surface of the PCC; wherein excess solubilised calcium ions are provided during step d). The present invention further relates to a slurry of surface-reacted PCC comprising pigment obtained by this process, its use as well as the surface-reacted PCC contained in the slurry.Type: ApplicationFiled: December 2, 2008Publication date: November 11, 2010Inventors: Daniel E. Gerard, Patrick A.C. Gane, Joachim Schölkopf, Hans-Joachim Weitzel
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Patent number: 7829053Abstract: Non-cementitious CO2 sequestering compositions are provided. The compositions of the invention include a CO2 sequestering additive, e.g., a CO2 sequestering carbonate composition. Additional aspects of the invention include methods of making and using the non-cementitious CO2 sequestering compositions.Type: GrantFiled: October 30, 2009Date of Patent: November 9, 2010Assignee: Calera CorporationInventors: Brent Constantz, Andrew Youngs, Joshua Patterson
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Publication number: 20100258035Abstract: Methods of characterizing and producing compositions with negative ?13C values are provided. Aspects of the invention include characterizing source materials and process products. Aspects of the invention also include compositions that contain carbon with negative ?13C values.Type: ApplicationFiled: May 24, 2010Publication date: October 14, 2010Inventors: Brent Constantz, Sidney Omelon
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Patent number: 7807125Abstract: Highly compactable granulations and methods for preparing highly compactable granulations are disclosed. More particularly, highly compactable calcium carbonate granulations are disclosed. The granulations comprise powdered materials such as calcium carbonate that have small median particle sizes. The disclosed granulations are useful in pharmaceutical and nutraceutical tableting and provide smaller tablet sizes upon compression than previously available.Type: GrantFiled: October 25, 2006Date of Patent: October 5, 2010Assignee: Delavau LLCInventors: Kevin W. Lang, James W. Dibble, Raya Levin, Gregory B. Murphy
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Publication number: 20100239487Abstract: Non-cementitious CO2 sequestering compositions are provided. The compositions of the invention include a CO2 sequestering additive, e.g., a CO2 sequestering carbonate composition. Additional aspects of the invention include methods of making and using the non-cementitious CO2 sequestering compositions.Type: ApplicationFiled: May 28, 2010Publication date: September 23, 2010Inventors: Brent Constantz, Andrew Youngs
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Patent number: 7790134Abstract: A method of purifying isosaccharinate by mixing sodium carbonate, potassium carbonate, sodium hydroxide or potassium hydroxide with calcium isosaccharinate, removing the precipitated calcium carbonate and adjusting the pH to between approximately 4.5 to 5.0 thereby removing excess carbonate and hydroxide to provide an acidic solution containing isosaccharinate.Type: GrantFiled: April 2, 2008Date of Patent: September 7, 2010Assignee: Sandia CorporationInventors: Dhanpat Rai, Robert C. Moore, Mark D. Tucker
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Publication number: 20100215564Abstract: The invention discloses a method of preparing monodisperse microtablets of calcium carbonate in aqueous solutions containing calcium, gelatin and urea. Calcium carbonate powders of a unique tablet-like morphology were produced by simply ageing the prerefrigerated (at 4° C. for at least 24 hours) CaCI2-gelatin-urea solutions at 70° C. for 24 h in ordinary glass media bottles. Thermal decomposition of dissolved urea was used to supply aqueous carbonate (CO32?) ions to the calcium (Ca2+) ion and gelatin-containing solutions. Monodisperse CaCO3 microtablets have the particle sizes from 1 to 8 microns. CaCO3 microtablets were biphasic in nature and consist of 93 to 98% vaterite and 2 to 7% calcite. Identical solutions used without prerefrigeration yielded only trigonal prismatic calcite crystals upon ageing at 70° C. for 24 h.Type: ApplicationFiled: August 3, 2007Publication date: August 26, 2010Inventor: Ahmet Cüneyt Tas
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Publication number: 20100215972Abstract: Mineral pigments (such as kaolin clay) having a high surface area and particle size in the nano scale range are provided which are useful in paper coating and filling, ink jet coating formulations, paint compositions, and as a filler in rubbers, plastics and polymers. These pigments are manufactured by intensive wet milling of a mineral composition which may have undergone prior dry grinding and then optionally subjecting the wet milled mineral composition to an acid treatment.Type: ApplicationFiled: February 25, 2009Publication date: August 26, 2010Inventors: Prakash B. Malla, Siva Devisetti
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Patent number: 7776232Abstract: A powdery white vulcanization promoter composition which is excellent in storage stability, the resistance of blends thereof with rubbers or the like to heat build-up, and design; and rubber compositions containing the same. Specifically, a vulcanization promoter composition which comprises a modified calcium carbonate (A) surface-treated with a fatty acid or a resin acid and a silicic acid, an inorganic filler (B) exhibiting an oil absorption of as high as 50 to 300 ml/100 g, and a vulcanization promoter component (C) liquid at ordinary temperatures, characterized in that the (A):(B) mixing ratio is within the range of 30:70 to 95:5 and the content of (C) is 30 to 80 wt % based on the whole of the promoter composition.Type: GrantFiled: August 31, 2005Date of Patent: August 17, 2010Assignee: Shiraishi Kogyo Kaisha, Ltd.Inventors: Takashi Korenaga, Takashi Deguchi, Shoichi Tsutsui
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Publication number: 20100178227Abstract: A method for preparing metal compound nanoparticles, comprising treating a uniform dispersion of at least one metal precursor in an organic solvent with a supercritical carbon dioxide fluid to attain a homogeneous mixture, which is subjected to a solvothermal reaction under a subcritical CO2 condition, makes it easy to prepare nanoparticles of a metal oxide, a doped metal compound, or a metal complex having various shapes.Type: ApplicationFiled: October 13, 2009Publication date: July 15, 2010Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Sang Woo KIM, Kwang Deok KIM
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Patent number: 7754169Abstract: Methods are provided for producing a composition comprising carbonates, wherein the methods comprise utilizing waste sources of metal oxides. An aqueous solution of divalent cations, some or all of which are derived from a waste source of metal oxides, may be contacted with CO2 and subjected to precipitation conditions to provide compositions comprising carbonates. In some embodiments, a combustion ash is the waste source of metal oxides for the aqueous solution containing divalent cations. In some embodiments, a combustion ash is used to provide a source of proton-removing agents, divalent cations, silica, metal oxides, or other desired constituents or a combination thereof.Type: GrantFiled: June 17, 2009Date of Patent: July 13, 2010Assignee: Calera CorporationInventors: Brent Constantz, Paulo J. M. Monteiro, Sidney Omelon, Miguel Fernandez, Kasra Farsad, Katharine Geramita, Karin Yaccato
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Patent number: 7754176Abstract: When spherical calcium carbonate is produced by blowing a carbon dioxide gas or a carbon dioxide-containing gas into an aqueous suspension containing calcium hydroxide to react them, after start of the reaction, an aqueous solution or suspension of a water-soluble phosphoric acid compound or a water-soluble salt thereof is added to the reaction mixture when carbonation ratio reaches 2 to 10%, and the reaction is further allowed to continue at a low gas blowing rate of 1.0 NL/minute or lower (step (a)). Subsequently, an aqueous suspension containing calcium hydroxide and an aqueous solution or suspension of a water-soluble phosphoric acid compound or a water-soluble salt thereof are added to the reaction mixture, and a carbon dioxide gas or a carbon dioxide-containing gas is introduced to allow to react and thereby produce spherical calcium carbonate having a mean particle diameter of 10 ?m or larger.Type: GrantFiled: February 26, 2004Date of Patent: July 13, 2010Assignee: Okutama Kogyo Co., Ltd.Inventors: Kenshiro Makino, Kazuo Yamashita
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Patent number: 7753618Abstract: Compositions comprising synthetic rock, e.g., aggregate, and methods of producing and using them are provided. The rock, e.g., aggregate, contains CO2 and/or other components of an industrial waste stream. The CO2 may be in the form of divalent cation carbonates, e.g., magnesium and calcium carbonates. Aspects of the invention include contacting a CO2 containing gaseous stream with a water to dissolve CO2, and placing the water under precipitation conditions sufficient to produce a carbonate containing precipitate product, e.g., a divalent cation carbonate.Type: GrantFiled: May 29, 2009Date of Patent: July 13, 2010Assignee: Calera CorporationInventors: Brent Constantz, Andrew Youngs, James O'Neil, Kasra Farsad, Joshua Patterson, John Stagnaro, Ryan Thatcher, Chris Camire
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Patent number: 7749476Abstract: Provided are methods for producing carbonate-containing compositions comprising silicon-based material (e.g., pozzolanic material) from a source of carbon dioxide, a divalent cation-containing solution, and a source of proton-removing agents. In such methods, divalent cations of the divalent cation-containing solution are provided by digestion of material comprising metal silicates. Also provided are methods for producing carbonate-containing compositions comprising little or no silicon-based material. In such methods, silicon-based material (e.g., silica, unreacted or undigested silicates, aluminosilicates, etc.) may be separated and processed separately from carbonate-containing compositions. Silicon-based material and carbonate-containing material may be blended at a later stage to produce a pozzolanic material, which may be further processed and blended with, for example, Portland cement.Type: GrantFiled: July 10, 2009Date of Patent: July 6, 2010Assignee: Calera CorporationInventors: Brent R. Constantz, Laurence Clodic, Cecily Ryan, Miguel Fernandez, Kasra Farsad, Sidney Omelon, Philip Tuet, Paulo Monteiro, Gordon E. Brown, Jr., Katharine Geramita
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Patent number: 7744761Abstract: Desalination methods that include carbonate compound precipitation are provided. In certain embodiments, feed water is subjected to carbonate compound precipitation conditions prior to desalination. In certain embodiments, desalination waste brine is subjected to carbonate compound precipitation conditions. In yet other embodiments, both feed water and waste brine are subjected to carbonate compound precipitation conditions. Aspects of embodiments of the invention include carbon dioxide sequestration. Embodiments of the invention further employ a precipitate product of the carbonate compound precipitation conditions as a building material, e.g., a cement. Also provided are systems configured for use in methods of the invention.Type: GrantFiled: June 27, 2008Date of Patent: June 29, 2010Assignee: Calera CorporationInventors: Brent R. Constantz, Kasra Farsad, Miguel Fernandez
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Patent number: 7744688Abstract: The present disclosure relates to a coating composition for use in producing a coating on paper and other substrates comprising an aqueous suspension of a particulate pigment together with a binder, wherein the particulate pigment comprises a mixture of: a first pigment component comprising particulate ground calcium carbonate (GCC) having a particle size distribution (psd) steepness factor ranging from about 30 to about 45; and a second pigment component comprising particulate precipitated calcium carbonate (PCC) having a psd steepness factor ranging from about 55 to about 75. The particulate pigment may optionally further include a particulate kaolin clay.Type: GrantFiled: December 29, 2003Date of Patent: June 29, 2010Assignee: Imerys Pigments, Inc.Inventors: David Skuse, Mark Mortimer, Deb Thrale, Rajan R. Iyer, Daniel J. Panfil, Christopher Nutbeem
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Publication number: 20100158786Abstract: Desalination methods that include carbonate compound precipitation are provided. In certain embodiments, feed water is subjected to carbonate compound precipitation conditions prior to desalination. In certain embodiments, desalination waste brine is subjected to carbonate compound precipitation conditions. In yet other embodiments, both feed water and waste brine are subjected to carbonate compound precipitation conditions. Aspects of embodiments of the invention include carbone dioxide sequestration. Embodiments of the invention further employ a precipitate product of the carbonate compound precipitation conditions as a building material, e.g., a cement. Also provided are systems configured for use in methods of the invention.Type: ApplicationFiled: February 4, 2010Publication date: June 24, 2010Inventors: Brent R. Constantz, Kasra Farsad, Miguel Fernandez
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Patent number: 7735274Abstract: Hydraulic cement compositions that include a carbonate compound composition, e.g., a salt-water derived carbonate compound composition containing crystalline and/or amorphous carbonate compounds, are provided. Also provided are methods of making and using the hydraulic cements, as well as settable compositions, such as concretes and mortars, prepared therefrom. The cements and compositions produced therefrom find use in a variety of applications, including use in a variety of building materials and building applications.Type: GrantFiled: May 23, 2008Date of Patent: June 15, 2010Assignee: Calera CorporationInventors: Brent R. Constantz, Cecily Ryan, Laurence Clodic
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Publication number: 20100144521Abstract: Compositions comprising synthetic rock, e.g., aggregate, and methods of producing and using them are provided. The rock, e.g., aggregate, contains CO2 and/or other components of an industrial waste stream. The CO2 may be in the form of divalent cation carbonates, e.g., magnesium and calcium carbonates. Aspects of the invention include contacting a CO2 containing gaseous stream with a water to dissolve CO2, and placing the water under precipitation conditions sufficient to produce a carbonate containing precipitate product, e.g., a divalent cation carbonate.Type: ApplicationFiled: February 1, 2010Publication date: June 10, 2010Inventors: Brent Constantz, Andrew Youngs, James O'Neil, Kasra Farsad, Joshua Patterson, John Stagnaro, Ryan Thatcher, Chris Camire
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Patent number: 7731921Abstract: A process for sequestration of carbon dioxide comprising the following steps: (a) dispersing solid waste material comprising calcium oxide and a calcium-comprising mixed oxide in water to dissolve at least part of the calcium oxide and to form calcium oxide-depleted solid waste material in a calcium hydroxide solution; (b) separating the calcium hydroxide solution from the calcium oxide-depleted solid waste material; (c) converting the calcium hydroxide in the separated calcium hydroxide solution in precipitated calcium carbonate; and (d) contacting an aqueous slurry of the calcium oxide-depleted solid waste material with carbon dioxide for mineral carbonation of the carbon dioxide to form carbonated solid waste material.Type: GrantFiled: December 18, 2006Date of Patent: June 8, 2010Assignee: Shell Oil CompanyInventors: Jacobus Johannes Cornelis Geerlings, Gerardus Antonius Franciscus Van Mossel, Bernardus Cornelis Maria In' T Veen
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Publication number: 20100129282Abstract: A calcium product contains, in dry state, at least 97% by weight of a calcium compound selected from the group consisting of calcium oxide, calcium hydroxide, calcium sulfate (up to 3% by weight, preferably less) and calcium carbonate, and less than or equal to 4.2 ppm by weight of phosphorus with respect to calcium content and less than or equal to 1.4 ppm by weight of boron with respect to calcium content.Type: ApplicationFiled: April 4, 2008Publication date: May 27, 2010Applicant: SOLVAY (SOCIETE ANONYME)Inventors: Bernhard Korner, Cedric Humbolt
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Patent number: 7722842Abstract: A method for mineral sequestration of pollutant gases resulting from the combustion of carbon-based fuels such as carbon and sulfur dioxides is provided and includes, providing a particulate magnesium-containing mineral and exposing the magnesium-containing mineral to a weak acid to dissolve magnesium from the mineral and form a magnesium-containing solution. The surface of the particulate magnesium-containing mineral is physically activated to expose and dissolve additional magnesium into the solution. Pollutant gases such as carbon dioxide are mixed with the magnesium-containing solution. When the pH of the magnesium-containing solution is increased, solid magnesium carbonate is formed.Type: GrantFiled: December 30, 2004Date of Patent: May 25, 2010Assignee: The Ohio State UniversityInventors: Ah-Hyung Park, Liang-Shih Fan
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Publication number: 20100111809Abstract: The invention resides in the use in a paint of a calcium carbonate characterised in that it is obtained by dry-grinding, firstly, and in that it is dry-ground in the presence of a grinding aid agent which is a copolymer of (meth)acrylic acid with a monomer containing an alcoxy or hydroxy polyalkyleneglycol group, secondly. The invention also concerns the paints thus obtained.Type: ApplicationFiled: February 26, 2008Publication date: May 6, 2010Applicant: Coatex S.A.S.Inventors: Jean-Marc Suau, Jacques Mongoin, Denis Ruhlmann, Olivier Guerret
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Publication number: 20100111810Abstract: Non-cementitious CO2 sequestering compositions are provided. The compositions of the invention include a CO2 sequestering additive, e.g., a CO2 sequestering carbonate composition. Additional aspects of the invention include methods of making and using the non-cementitious CO2 sequestering compositions.Type: ApplicationFiled: October 30, 2009Publication date: May 6, 2010Inventors: Brent Constantz, Andrew Youngs, Joshua Patterson
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Patent number: 7709090Abstract: The particles comprise a core of calcium carbonate and a coating covering at least part of the surface of the core, the coating being carried out in at least two distinct consecutive steps, each step using a different coating agent. The coating agent used in the first step is preferably a fatty acid and the coating agent used in the second step is preferably a diol or a triol. The particles can be used as a functional filler, i.e. in plastisols formulations.Type: GrantFiled: January 20, 2005Date of Patent: May 4, 2010Assignee: Solvay (Societe Anonyme)Inventors: Christoph Nover, Kurt Schinninger
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Patent number: 7708973Abstract: Process for the production of precipitated calcium carbonate particles, structured at the nanoscale, by carbonation of milk of lime in the presence of a crystallization controller selected from the following list: polyaspartic acid, dioctyl sodium sulphosuccinate, polyacrylic acid, the molecular weight of which is between 500 and 15 000, and citric acid. When the crystallization controller is citric acid, its concentration in the milk of lime is between 5 and 15%.Type: GrantFiled: September 26, 2008Date of Patent: May 4, 2010Assignee: Solvay (Societe Anonyme)Inventors: Claude Vogels, Karine Cavalier, Didier Sy, Roberto Rosa
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Patent number: 7695528Abstract: Highly compactable granulations and methods for preparing highly compactable granulations are disclosed. More particularly, highly compactable calcium carbonate granulations are disclosed. The granulations comprise powdered materials such as calcium carbonate that have small median particle sizes. The disclosed granulations are useful in pharmaceutical and nutraceutical tableting and provide smaller tablet sizes upon compression than previously available.Type: GrantFiled: February 15, 2007Date of Patent: April 13, 2010Assignee: Delavau LLCInventors: Kevin W. Lang, Raya Levin, James W. Dibble, Gregory B. Murphy
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Publication number: 20100077922Abstract: Methods of characterizing and producing compositions with negative ?13C values are provided. Aspects of the invention include characterizing source materials and process products. Aspects of the invention also include compositions that contain carbon with negative ?13C values.Type: ApplicationFiled: September 30, 2009Publication date: April 1, 2010Inventors: BRENT CONSTANTZ, James R. O'Neil, Sidney Omelon
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Publication number: 20100075148Abstract: An object of the present invention is to provide a process to obtain a calcium carbonate material comprising GCC and PCC, with a specific steepness factor (defined as d30/d70×100, where dx is the equivalent spherical diameter relative to which x % by weight of the particles are finer) of at least about 30, preferably of at least about 40, and most preferably of at least about 45, in a cost efficient manner, wherein GCC and PCC are co-ground, possibly with at least another mineral material. An other object of the present invention lies in the the obtained co-ground calcium carbonate material in the form of an aqueous suspension and in the form of a dry product. An other object of the present invention lies in the uses of such products in any sector making use of mineral materials, and notably in the paper, paint and plastic industries.Type: ApplicationFiled: September 12, 2006Publication date: March 25, 2010Inventors: Christian Rainer, Michael Pohl
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Publication number: 20100074827Abstract: An object of the present invention is to provide a process to grind at least one mineral material in the presence of ceria (CeO2)-containing zirconium oxide grinding beads having a specific ceria content (of between 14 and 20% by weight relative to the total weight of said bead, preferably of between 15 and 18%, and most preferably of approximately 16%), and a specific average grain size (of less than 1 ?m, preferably of less than 0.5 ?m, and most preferably of less than 0.3 ?m), wherein such beads are more resistant to wear than conventional beads of the prior art. An other object of the present invention lies in the ground material in the form of an aqueous suspension and in the form of a dry product. An other object of the present invention lies in the uses of such products in any sector making use of mineral materials, and notably in the paper, paint and plastic industries.Type: ApplicationFiled: September 12, 2006Publication date: March 25, 2010Inventors: Christian Rainer, Michael Pohl
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Patent number: 7682589Abstract: Method for industrial manufacture of pure MgCO3 comprising providing an olivine containing species of rock, to comminute the olivine containing species of rock to increase its surface, to contact the comminuted olivine containing species of rock with water and CO2. The process is conducted in at least two steps, namely a first step (R1) at a first pH where a dissolving reacting as represented the equation: Mg2SiO4(S)+4H+=2Mg2++SiO2(aq)+2H2O, takes place. Then a precipitation takes place in the second step (R2) at a higher pH as represented by the equations: Mg2++HCO3?=MgCO3(S)+H+, and Mg2++CO32?=MgCO3(S), the presence of HCO3? and H+ ions mainly provided by the reaction between CO2 and water.Type: GrantFiled: November 23, 2006Date of Patent: March 23, 2010Assignee: Institutt for EnergiteknikkInventors: Oddvar Gorset, Harald Johansen, Jan Kihle, Ingrid Anne Munz, Arne Raaheim
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Publication number: 20100068119Abstract: A process for removing CO2 from a gas containing CO2 by reacting it with a magnesium silicate mineral suspended in a molten salt and additionally a process for converting coal or other fossil fuel to hydrogen by reaction the fossil fuel or coal with water in a molten salt at elevated temperatures in the presence of a magnesium silicate mineral suspended in the molten salt wherein the magnesium silicate reacts with CO2 produced in the reaction, thus removing it from the hydrogen product gas.Type: ApplicationFiled: November 21, 2009Publication date: March 18, 2010Inventor: Calvin Billings
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Publication number: 20100055460Abstract: A fine alkaline earth metal carbonate powder showing high dispersibility, in which the alkaline earth metal carbonate is selected from the group consisting of strontium carbonate and barium carbonate, can be prepared by a process comprising the steps of pulverizing a powder of strontium carbonate or barium carbonate in an aqueous medium using ceramic beads having a mean diameter of 10 to 1,000 ?m in the presence of a polymer comprising a polycarboxylic acid or anhydride thereof having a side chain of a polyoxyalkylene group, and drying the pulverized powder.Type: ApplicationFiled: March 12, 2008Publication date: March 4, 2010Applicant: UBE MATERIAL INDUSTRIES, LTD.Inventors: Yojiro Ichimura, Takashi Watanabe, Fumio Okada, Naoki Funabashi
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Publication number: 20100041809Abstract: Alkaline earth metal carbonate exhibiting a resistance to acids expressed as pH of less than 7 measured after suspending 1.0 g of the particles in a mixture made of 20 ml of toluene and 80 ml of an aqueous phase consisting of deionized water, 11.76 g/L of citric acid monohydrate, 2.57 g/L of NaCl and 0.068 mol/L of NaOH, after 35 minutes of stirring at 25° C. and at 1 000 rpm, or expressed as a moisture pick-up lower than or equal to 2 g water/kg of calcium carbonate after one week of storage at 22° C. and 50% relative humidity, or as a Differential Scanning Calorimetry (DSC) spectrum showing at least one peak between 170 and 190° C. when measured at a heating rate of 10° C./min under nitrogen atmosphere from 25 to 250° C. in open cells. Process for the preparation of said particles, compositions containing said particles and the use thereof.Type: ApplicationFiled: December 20, 2005Publication date: February 18, 2010Applicant: SOLVAY (SOCIETE ANONYME)Inventors: Karine Cavalier, Gaëlle Rodary, Didier Sy, Roberto Rosa
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Publication number: 20100040528Abstract: The invention concerns a process for purification of calcium carbonate-comprising minerals comprising at least one flotation step, characterised in that this step implements at least one quaternary imidazoline methosulfate compound as collector agent.Type: ApplicationFiled: January 11, 2008Publication date: February 18, 2010Inventors: Bahman Tavakkoli, Thomas Mangelberger, Jörg Maier, Matthias Buri
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Publication number: 20100035076Abstract: Disclosed herein are methods for producing a particulate mineral material having a desired particle size distribution, including processing the mineral material at a first location, stabilizing the processed mineral, transporting the stabilized processed mineral to a second location; and further processing the stabilized processed mineral material at the second location to a desired particle size distribution.Type: ApplicationFiled: March 27, 2007Publication date: February 11, 2010Inventors: Jacek Antoni Kostuch, Desmond Charles Payton
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Patent number: 7658780Abstract: A method of treatment of wood ash residue. A first step involves wetting the wood ash residue. A second step involves reacting the wetted wood ash residue with carbon dioxide gas. Mineral oxides and hydroxides are converted to carbonates, thereby reducing the caustic nature of the wood ash residue. A third step involves continuing to react the wetted wood ash residue until the resulting ash residue is substantially carbonated.Type: GrantFiled: August 2, 2006Date of Patent: February 9, 2010Assignee: Alberta Research Council Inc.Inventors: Richard Lyle Johnson, Richard Eugene Kuzub, Albert Joseph Liem, Clifford Paul Ronden
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Publication number: 20100024686Abstract: Compositions comprising synthetic rock, e.g., aggregate, and methods of producing and using them are provided. The rock, e.g., aggregate, contains CO2 and/or other components of an industrial waste stream. The CO2 may be in the form of divalent cation carbonates, e.g., magnesium and calcium carbonates. Aspects of the invention include contacting a CO2 containing gaseous stream with a water to dissolve CO2, and placing the water under precipitation conditions sufficient to produce a carbonate containing precipitate product, e.g., a divalent cation carbonate.Type: ApplicationFiled: May 29, 2009Publication date: February 4, 2010Inventors: Brent Constantz, Andrew Youngs, James O'Neil, Kasra Farsad, Joshua Patterson, John Stagnaro, Ryan Thatcher, Chris Camire
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Publication number: 20090305378Abstract: A mineral carbonation process, characterised in that the silicate feedstock is thermally activated by using heat generated from the combustion of fuel prior to reacting the activated slurry feedstock with carbon dioxide.Type: ApplicationFiled: November 21, 2007Publication date: December 10, 2009Applicant: Orica Explosives Technology Pty Ltd.Inventor: Geoffrey Frederick Brent
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Publication number: 20090298699Abstract: The invention offers a production method of a material powder of an oxide superconductor. The production method is provided with both a step of producing a dry powder by removing solvent from a solution containing elements for constituting the oxide superconductor and a step of producing oxides of the elements for constituting the oxide superconductor by scattering the dry powder in a high-temperature furnace. Provided with the above steps, the production method not only can achieve the uniform presence of the elements for constituting the oxide superconductor but also enables the mass production of the material powder.Type: ApplicationFiled: March 13, 2008Publication date: December 3, 2009Applicant: SUMITOMO ELECTRIC INDUSTRIES ,LTD.Inventor: Naoki Ayai
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Publication number: 20090269268Abstract: Disclosed herein is a method of separating carbon dioxide from a gas mixture using a biopolymer, including: introducing hemocyte or extrapallial fluid, extracted from shells, into a reactor filled with 1L of a solution containing a calcium source, and then dissolving the hemocyte or extrapallial fluid in the solution to form a mixed solution; and mixing carbon dioxide or a gas mixture containing carbon dioxide into the mixed solution to separate carbon dioxide from the gas mixture.Type: ApplicationFiled: August 19, 2008Publication date: October 29, 2009Applicant: Korea Institute of Energy ResearchInventors: Soon-Kwan Jeong, Seung-Woo Lee, Si-Hyun Lee, Cheong-Song Choi, Sang-Do Kim
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Patent number: 7601213Abstract: The present invention relates to a pigment and a coating composition comprising such a pigment, wherein it is contemplated that a coating composition containing such pigment is capable of inhibiting corrosion of a substrate to which it is applied. In one embodiment, the pigment comprises a filler having calcium borate, calcium molybdate, and calcium phosphate deposited on the surface of the filler. In an exemplary embodiment, the filler is calcium carbonate.Type: GrantFiled: December 5, 2008Date of Patent: October 13, 2009Assignee: The Sherwin-Williams CompanyInventors: Charles H. Simpson, Michael W. Peck, Lisa M. Wright
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Patent number: 7597867Abstract: Carbon nanotube apparatus, and methods of carbon nanotube modification, include carbon nanotubes having locally modified properties with the positioning of the modifications being controlled. More specifically, the positioning of nanotubes on a substrate with a deposited substance, and partially vaporizing part of the deposited substance etches the nanotubes. The modifications of the carbon nanotubes determine the electrical properties of the apparatus and applications such as a transistor or Shockley diode. Other applications of the above mentioned apparatus include a nanolaboratory that assists in study of merged quantum states between nanosystems and a macroscopic host system.Type: GrantFiled: July 31, 2007Date of Patent: October 6, 2009Assignee: The United States of America as represented by the Secretary of the NavyInventors: Francisco Santiago, Victor H. Gehman, Jr., Karen J. Long, Kevin A. Boulais
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Publication number: 20090232723Abstract: The present invention relates in general to a method for obtaining particulate calcium carbonate and activated carbon particles and methods for using same, and more particularly, to a method for obtaining activated carbon particles having an average particle size less than about 12 microns from a pulp mill.Type: ApplicationFiled: March 18, 2009Publication date: September 17, 2009Inventors: Gary A. Olsen, John C. Stuever, Susan C. Stuever