Sulfate Patents (Class 423/544)
  • Patent number: 10308564
    Abstract: The present invention discloses processes for alkylating an aromatic compound, such as benzene or toluene, using a chemically-treated solid oxide. Suitable chemically-treated solid oxides include fluorided silica-coated alumina and fluorided-chlorided silica-coated alumina.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: June 4, 2019
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Qing Yang, Max P. McDaniel, Uriah J. Kilgore, Mark L. Hlavinka
  • Patent number: 10294117
    Abstract: The invention relates to a process for extracting metals and salts from titanium-bearing minerals such as perovskite. More particularly, although not exclusively, the invention relates to extracting titanium dioxide and optionally other compounds from melter slag derived from an iron-making process.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: May 21, 2019
    Assignee: AVERTANA LIMITED
    Inventors: David Jonathan Hassell, James Kevin Obern, Sean Daniel James Molloy, Sherif Owen Zaki Emad Marshall Ibrahim, Mohammed Shereez Ali
  • Patent number: 10144650
    Abstract: Digestion of a laterite with sulfuric acid dissolves all constituents except silica. The resulting sulfates—aluminum sulfate, ferric sulfate, titanyl sulfate, and magnesium sulfate—remain in solution at approximately 90° C. Hot filtration separates silica. Solution flow over iron reduces ferric sulfate to ferrous sulfate. Controlled ammonia addition promotes hydrolysis and precipitation of hydrated titania from titanyl sulfate that is removed by filtration. Addition of ammonium sulfate forms ferrous ammonium sulfate and ammonium aluminum sulfate solutions. Alum is preferentially separated by crystallization. Addition of ammonium bicarbonate to an ammonium alum solution precipitates ammonium aluminum carbonate which may be heated to produce alumina, ammonia, and carbon dioxide. The addition of oxalic acid generates insoluble ferrous oxalate which thermally decomposes to ferrous oxide and carbon monoxide which is used to reduce the ferrous oxide to metallic iron.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: December 4, 2018
    Assignee: AluChem Companies, Inc.
    Inventor: Ian Manson
  • Patent number: 8968572
    Abstract: In a device and a process for purifying water which is contaminated with sulphate ions and heavy metal ions, the water is collected in a water reservoir and a substance having basic activity in water is fed to the water reservoir in such a manner that a precipitant having heavy metal ions is precipitated from the water, wherein at least a subquantity of water is taken off from the water reservoir and is separated into pure water which is substantially freed from sulphate ions and heavy metal ions and dirty water which is enriched with sulphate ions and heavy metal ions. The dirty water is at least in part recirculated to the water reservoir, as a result of which a concentration of sulphate ions in the water reservoir is achieved such that a precipitant having sulphate ions is precipitated from the water.
    Type: Grant
    Filed: January 7, 2008
    Date of Patent: March 3, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventor: Michael Riebensahm
  • Patent number: 8906328
    Abstract: A method for the heap leaching of manganese-containing ores, the method characterized by the steps of: (i) beneficiating the manganese-containing ore and separating into a coarse fraction and a fine ore fraction; (ii) combining the fine ore fraction with a sulfide ore material to produce a combined ore fraction; (iii) stacking the combined ore fraction to form at least one heap; and (iv) applying a lixiviant to the heap to produce a pregnant leach solution (PLS) containing dissolved manganese values, wherein the lixiviant is added to the or each heap in the presence of soluble iron.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: December 9, 2014
    Assignee: Mesa Minerals Limited
    Inventor: Christopher Brett Ward
  • Patent number: 8900535
    Abstract: In an embodiment, the present invention relates to an apparatus and a process for producing a concentrated form of basic zinc sulphate from a, typically dilute, acidic zinc sulphate-bearing solution. The process embodiment comprises the steps of precipitating the zinc, preferably primarily as basic zinc sulphate, from the acidic zinc sulphate solution, preferably using calcium oxide, in such a way as to promote the formation of separate gypsum crystals and basic zinc sulphate particles, and upgrading the zinc content in the precipitates by separating the basic zinc sulphate from the gypsum using size separation techniques.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: December 2, 2014
    Assignee: Barrick Gold Corporation
    Inventor: Yeonuk Choi
  • Patent number: 8785535
    Abstract: A fibrous basic magnesium sulfate powder which does not contain CO2 in an amount of more than 0.15% by mass, or a fibrous basic magnesium sulfate powder which has a ratio of the infrared absorption within the wave number range of 1,400-1,440 cm?1 relative to the infrared absorption within the wave number range of 3,180-3,530 cm?1 of 0.005 or less. The fibrous basic magnesium sulfate powders exhibit improved physical property-improving effect when dispersed in a resin material.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: July 22, 2014
    Assignee: Ube Material Industries, Ltd.
    Inventors: Ryoichi Nomura, Tatsuki Okutsu
  • Patent number: 8772565
    Abstract: A radioactive waste acid is recycled. The waste acid is a fluoboric waste acid. The waste acid contains a lot of oxides and radioactive nuclei. The waste fluoboric acid is processed to obtain a purified fluoboric acid. The amount of radioactive nuclei is greatly reduced. Thus, the present invention has a simple procedure with low cost and reduced power consumption.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: July 8, 2014
    Assignee: Institute of Nuclear Energy Research, Atomic Energy Council
    Inventors: Chin-Hsiang Kan, Wen-Cheng Lee, Tsong-Yang Wei
  • Patent number: 8747802
    Abstract: Provided is a method for preparing manganese sulfate monohydrate, which comprises the following steps: (1) reacting MnO with (NH4)2SO4 solution under heat, and separating solid from liquid after reaction 2) determining the concentration of MnSO4 in the resulting solution of step 1), adding equimolar ammonium sulfide solution thereto to carry out reaction under agitation, separating solid from liquid after reaction, and then washing solid phase: 3) dissolving the solid phase with concentrated sulfuric acid, adding hydrogen peroxide to the obtained solution, heating to boiling, adjusting the pH value of the solution to 5-6, removing the solid phase through precise filtration, evaporating and oven drying the filtrate to obtain MnSO4.H2O product. The impurities are separated away and the amount of byproducts is reduced by this method, and the yield of manganese sulfate monohydrate is improved.
    Type: Grant
    Filed: July 20, 2010
    Date of Patent: June 10, 2014
    Assignee: Guizhou Redstar Developing Co., Ltd.
    Inventors: Zhiguang Jiang, Dong Hua
  • Patent number: 8709375
    Abstract: A method for preparing an oil extractor is provided. The method includes dissolving 0.1˜30% by weight of a potassium sulfate, 0.1˜30% by weight of a potassium persulfate, and 0.1˜30% by weight of a manganese sulfate in a solvent to form a solution; heating the solution to synthesize a compound by a microwave; cooling a temperature of the compound to a room temperature; and removing the solvent from the compound. An extractor prepared from the method is also provided.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: April 29, 2014
    Assignee: National Tsing Hua University
    Inventors: Yong-Chien Ling, Jen-Yu Liu
  • Patent number: 8664141
    Abstract: Provided is a silver-supported alumina catalyst for reducing nitrogen oxides using ethanol, which has the drawbacks of the conventional silver-supported alumina catalysts improved, has high performance, is not likely to deteriorate over time, and has excellent initial performance and durability. A catalyst for purifying nitrogen oxides, which purifies nitrogen oxides in exhaust gas using an alcohol as a reducing agent, and contains alumina, aluminum sulfate and silver as main components.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: March 4, 2014
    Assignee: Babcock-Hitachi Kabushiki Kaisha
    Inventors: Masatoshi Fujisawa, Yasuyoshi Kato
  • Patent number: 8658122
    Abstract: This invention refers to a novel process to obtain magnesium hydroxide and sodium sulfate from a solid raw material, which contains sodium and magnesium soluble salts, preferably in the form of sulfates, coming from a natural source or as a byproduct of an industrial process. The process consisting in the conditioning of the raw material to guarantee the correct concentrations of sodium and magnesium sulfates that is subjected to a salting-out crystallization when mixed with sodium sulfate obtaining sodium sulfate; the resulting solution is subjected to an alkali treatment to precipitate the magnesium hydroxide and the mother liquor is fed to a regeneration stage of the alkali used in the precipitation of the magnesium hydroxide as well in the sodium sulfate solution for the crystallization. The crystallization can be performed as a multistage process countercurrent to increase the purity of sodium sulfate.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: February 25, 2014
    Assignee: Servicios Administrativas Penoles S.A. de C.V.
    Inventors: Jesús Manuel Martinez Martinez, Armando Garcia López, José Gertrudis Bocanegra Rojas, Ricardo Benavides Pérez
  • Publication number: 20130251818
    Abstract: Personal lubricants containing royal jelly, a glow powder or xylitol are provided.
    Type: Application
    Filed: March 22, 2013
    Publication date: September 26, 2013
    Applicant: Nature Labs USA LLC
    Inventors: Louis J. Rivers, IV, Kevin Stranen
  • Patent number: 8540950
    Abstract: The invention relates to a method for removing chloride from zinc sulphate solution in conjunction with zinc production. According to the method, the chloride is removed from solution by means of monovalent copper, which is produced in a separate copper(I) oxide formation stage, in which the pH is regulated to the region of 4.5-5.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: September 24, 2013
    Assignee: Outotec Oyj
    Inventors: Mikko Ruonala, Kurt Svens, Antti Arpalahti, Karoliina Lepistö
  • Patent number: 8529155
    Abstract: The present invention relates to a method for making pure salt comprises recapturing post-drilling flowback water from hydro-fracturing; removing oil from the flowback water; filtering the flowback water using an ultra filter with a pore size of about 0.1 microns or less to remove solid particulates and large organic molecules, such as benzene, ethylbenzene, toluene, and xylene, from the water; concentrating the flowback water to produce a brine that contains from about 15 wt % to about 40 wt % of salt relative to the total weight of the flowback brine; performing one or more chemical precipitation process using an effective amount of reagents to precipitate out the desired high quality commercial products, such as, barium sulfate, strontium carbonate, calcium carbonate; and crystallizing the chemically treated and concentrated flowback brine to produce greater than 99.5% pure salt products, such as sodium and calcium chloride.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: September 10, 2013
    Assignee: FracPure Holdings LLC
    Inventors: Frank A. DiTommaso, Peter N. DiTommaso
  • Patent number: 8523975
    Abstract: Salts of mineral nutrients stabilized with amino acids and/or ammonium salt, product and food supplement in which they are included and procedures of obtention, where the salts are obtained with anions of organic acids or inorganic anions and metallic cations associated with amino acids and/or ammonium salt, in which the invention introduces its general structure: {[Ac]n?·Men+?n[Amino acid and/or ammonium salt]}·xH2O Where ? represents a covalent dative bond, These new compounds have better taste and more solubility in water, making them more bioavailable.
    Type: Grant
    Filed: October 13, 2006
    Date of Patent: September 3, 2013
    Inventors: Eduardo Walter Ettlin, Jose Ruben Boccio, Adrian Tomas De Paoli, Edgardo Adrian Hager, Pablo Adrian De Paoli
  • Publication number: 20130189499
    Abstract: A method of forming a clear ink jet coating or a colored ink jet image on a substrate is disclosed. The coating or colored image provides antibacterial and antifungal protection. The method includes providing a source of ink jet ink having a mixture of solvent and a silver salt biocide including a silver sulfate biocide having a concentration range of 0.0005 to 0.5 weight %, applying the clear ink or colored ink in an image wise fashion to a substrate, and fixing the clear or colored ink to the substrate whereby an effective coating or image article is formed that provides antibacterial and antifungal protection.
    Type: Application
    Filed: January 24, 2012
    Publication date: July 25, 2013
    Inventors: Thomas Nelson Blanton, Valerie Lynn Kuykendall, John Joseph Scheible, Greg Munro, Tomas Gerald Patrick McHugh
  • Patent number: 8480997
    Abstract: Provided is a method for preparing manganese sulfate monohydrate, which comprises the following steps: (1) adding equimolar BaS or SrS solution into manganese sulfate solution to carry out reaction fully, and separating and washing the obtained solid; (2) mixing the solid with deionized water to prepare a slurry, dissolving the slurry with concentrated sulfuric acid, and separating solid from liquid to obtain MnSO4 solution; (3) adding proper amount of hydrogen peroxide to the MnSO4 solution, heating to boiling, adjusting the pH value of the solution within 5-6, evaporation the filtrate after a precise filtration, and crystallizing and drying to obtain MnSO4 H2O product. Manganese sulfate monohydrate can be produced at high yield in a cost-efficient manner by this method.
    Type: Grant
    Filed: July 20, 2010
    Date of Patent: July 9, 2013
    Assignees: Guizhou Redstar Developing Co., Ltd., Beijing Maxqueen Technology Co., Ltd.
    Inventors: Zhiguang Jiang, Dong Hua
  • Publication number: 20130116105
    Abstract: A molten bath-based direct smelting process comprises controlling the process conditions in a direct smelting yessel so that molten slag in a molten bath of metal and slag in the vessel has a viscosity in a range of 0.5-5 poise when the slag temperature is in a range of 1400-1550° C. in the molten bath in the vessel.
    Type: Application
    Filed: May 18, 2011
    Publication date: May 9, 2013
    Inventors: Rodney James Dry, Jacques Pilote
  • Publication number: 20120321546
    Abstract: Provided is a method for preparing manganese sulfate monohydrate, which comprises the following steps: (1) adding equimolar BaS or SrS solution into manganese sulfate solution to carry out reaction fully, and separating and washing the obtained solid; (2) mixing the solid with deionized water to prepare a slurry, dissolving the slurry with concentrated sulfuric acid, and separating solid from liquid to obtain MnSO4 solution; (3) adding proper amount of hydrogen peroxide to the MnSO4 solution, heating to boiling, adjusting the pH value of the solution within 5-6, evaporation the filtrate after a precise filtration, and crystallizing and drying to obtain MnSO4 H2O product. Manganese sulfate monohydrate can be produced at high yield in a cost-efficient manner by this method.
    Type: Application
    Filed: July 20, 2010
    Publication date: December 20, 2012
    Applicants: BEIJING MAXQUEEN TECHNOLOGY CO., LTD., GUIZHOU REDSTAR DEVELOPING CO., LTD.
    Inventors: Zhiguang Jiang, Dong Hua
  • Publication number: 20120316340
    Abstract: The use of metal-accumulating plants for implementing chemical reactions.
    Type: Application
    Filed: November 18, 2010
    Publication date: December 13, 2012
    Applicants: UNIVERSITE MONTPELLIER 2 SCIENCES ET TECHNIQUES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Claude Grison, Jose Escarre
  • Publication number: 20120315214
    Abstract: Provided is a method for preparing manganese sulfate monohydrate, which comprises the following steps: (1) reacting MnO with (NH4)2SO4 solution under heat, and separating solid from liquid after reaction; 2) determining the concentration of MnSO4 in the resulting solution of step 1), adding equimolar ammonium sulfide solution thereto to carry out reaction under agitation, separating solid from liquid after reaction, and then washing solid phase; 3) dissolving the solid phase with concentrated sulfuric acid, adding hydrogen peroxide to the obtained solution, heating to boiling, adjusting the pH value of the solution to 5-6, removing the solid phase through precise filtration, evaporating and oven drying the filtrate to obtain MnSO4.H2O product. The impurities are separated away and the amount of byproducts is reduced by this method, and the yield of manganese sulfate monohydrate is improved.
    Type: Application
    Filed: July 20, 2010
    Publication date: December 13, 2012
    Applicant: GUIZHOU REDSTAR DEVELOPING CO., LTD.
    Inventors: Zhiguang Jiang, Dong Hua
  • Publication number: 20120252999
    Abstract: Systems and methods of producing chemical compounds are disclosed. An example chemical production system includes a combustion chamber having intake ports for entry of a gas mixture. An igniter ignites the gas mixture in the intake chamber to facilitate a reaction at a high temperature and high pressure. A nozzle restricts exit of the ignited gas mixture from the combustion chamber. An expansion chamber cools the ignited gas. The expansion chamber has an exhaust where the cooled gas exits the expansion chamber. A chemical compound product is formed in the expansion chamber.
    Type: Application
    Filed: April 12, 2012
    Publication date: October 4, 2012
    Inventor: Bruce H. Peters
  • Patent number: 8273320
    Abstract: The present invention relates to a method for making pure salt comprises recapturing post-drilling flowback water from hydro-fracturing; removing oil from the flowback water; filtering the flowback water using an ultra filter with a pore size of about 0.1 microns or less to remove solid particulates and large organic molecules, such as benzene, ethylbenzene, toluene, and xylene, from the water; concentrating the flowback water to produce a brine that contains from about 15 wt % to about 40 wt % of salt relative to the total weight of the flowback brine; performing one or more chemical precipitation process using an effective amount of reagents to precipitate out the desired high quality commercial products, such as, barium sulfate, strontium carbonate, calcium carbonate; and crystallizing the chemically treated and concentrated flowback brine to produce greater than 99.5% pure salt products, such as sodium and calcium chloride.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: September 25, 2012
    Assignee: FracPure Holdings LLC
    Inventors: Frank A. DiTommaso, Peter N. DiTommaso
  • Publication number: 20120219638
    Abstract: The present invention includes antimicrobial silver-containing compositions that are effective in treating Erwinia species bacteria. These compositions are particularly effective for treating plants susceptible to Erwinia species infections.
    Type: Application
    Filed: November 21, 2011
    Publication date: August 30, 2012
    Inventors: Merle E. Olson, Michael W. Harding
  • Patent number: 8158097
    Abstract: The present invention relates to a method for making pure salt comprises recapturing post-drilling flowback water from hydro-fracturing; removing oil from the flowback water; filtering the flowback water using an ultra filter with a pore size of about 0.1 microns or less to remove solid particulates and large organic molecules, such as benzene, ethylbenzene, toluene, and xylene, from the water; concentrating the flowback water to produce a brine that contains from about 15 wt % to about 40 wt % of salt relative to the total weight of the flowback brine; performing one or more chemical precipitation process using an effective amount of reagents to precipitate out the desired high quality commercial products, such as, barium sulfate, strontium carbonate, calcium carbonate; and crystallizing the chemically treated and concentrated flowback brine to produce greater than 99.5% pure salt products, such as sodium and calcium chloride.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: April 17, 2012
    Assignee: FracPure Holdings LLC
    Inventors: Frank A. DiTommaso, Peter N. DiTommaso
  • Patent number: 8128903
    Abstract: The invention relates to a method of controlling the solubility of granular material by treating a precipitate comprising iron(II)sulphate monohydrate originating from titanium dioxide production, in which method the reaction temperature is allowed to increase at the most to a temperature of 120° C., to a plant for treating a precipitate comprising iron(II)sulphate monohydrate, to a product and its uses. A typical method according to the invention comprises the steps of mixing water to the reaction mixture in the said mixing apparatus, and keeping the amount of neutralizing agent sufficient to give a pH value from 1.5 to 4, preferably from 1.5 to 3, to the end product in order to obtain a granular material having a high soluble iron(II) content or keeping the amount of neutralizing agent sufficient to give a pH value ?9 to the end product in order to obtain a granular material having a low solubility.
    Type: Grant
    Filed: June 25, 2007
    Date of Patent: March 6, 2012
    Assignee: Sachtleben Pigments Oy
    Inventors: Juhatuomas Vuorisalo, Joni Pärnänen
  • Patent number: 8124558
    Abstract: A hydrogen storage material and process is provided in which alkali borohydride materials are created which contain effective amounts of catalyst(s) which include transition metal oxides, halides, and chlorides of titanium, zirconium, tin, and combinations of the various catalysts. When the catalysts are added to an alkali borodydride such as a lithium borohydride, the initial hydrogen release point of the resulting mixture is substantially lowered. Additionally, the hydrogen storage material may be rehydrided with weight percent values of hydrogen at least about 9 percent.
    Type: Grant
    Filed: May 17, 2005
    Date of Patent: February 28, 2012
    Assignee: Savannah River Nuclear Solutions, LLC
    Inventor: Ming Au
  • Patent number: 8124039
    Abstract: A process of producing silicon tetrafluoride from fluoride containing feedstocks. The process calcines the fluoride containing feedstock and a silica containing feedstock before reacting the mixture with sulfuric acid to produce silicon tetrafluoride. The silicon tetrafluoride is scrubbed with sulfuric acid. Excess sulfuric acid is recycled to the process. The process demonstrates an economic and environmentally friendly way to produce high quality silicon tetrafluoride.
    Type: Grant
    Filed: January 26, 2009
    Date of Patent: February 28, 2012
    Inventors: Vithal Revankar, Sanjeev Lahoti
  • Patent number: 8062615
    Abstract: An aqueous precipitation process for the preparation of particles comprising primarily silver sulfate, comprising reacting an aqueous soluble silver salt and an aqueous soluble source of inorganic sulfate ion in an agitated precipitation reactor vessel and precipitating particles comprising primarily silver sulfate, wherein the reaction and precipitation are performed in the presence of an aqueous soluble carboxylic acid additive or salt thereof, the amount of additive being a minor molar percentage, relative to the molar amount of silver sulfate precipitated, and effective to result in precipitation of particles comprising primarily silver sulfate having a mean grain-size of less than 70 micrometers.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: November 22, 2011
    Assignee: Eastman Kodak Company
    Inventors: David W. Sandford, Thomas N. Blanton
  • Publication number: 20110165059
    Abstract: In an embodiment, the present invention relates to an apparatus and a process for producing a concentrated form of basic zinc sulphate from a, typically dilute, acidic zinc sulphate-bearing solution. The process embodiment comprises the steps of precipitating the zinc, preferably primarily as basic zinc sulphate, from the acidic zinc sulphate solution, preferably using calcium oxide, in such a way as to promote the formation of separate gypsum crystals and basic zinc sulphate particles, and upgrading the zinc content in the precipitates by separating the basic zinc sulphate from the gypsum using size separation techniques.
    Type: Application
    Filed: January 7, 2011
    Publication date: July 7, 2011
    Applicant: BARRICK GOLD CORPORATION
    Inventor: Yeonuk Choi
  • Patent number: 7931880
    Abstract: An aqueous precipitation process for the preparation of particles comprising primarily silver sulfate, comprising reacting an aqueous soluble silver salt and an aqueous soluble source of inorganic sulfate ion in an agitated precipitation reactor vessel and precipitating particles comprising primarily silver sulfate, wherein the reaction and precipitation are performed in the presence of an aqueous soluble inorganic additive compound containing a cation capable of forming a sulfate salt that is less soluble than silver sulfate or a halide anion or an oxyanion capable of forming a silver salt that is less soluble than silver sulfate, the amount of additive being a minor molar percentage, relative to the molar amount of silver sulfate precipitated, and effective to result in precipitation of particles comprising primarily silver sulfate having a mean grain-size of less than 70 micrometers.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: April 26, 2011
    Assignee: Eastman Kodak Company
    Inventors: David W. Sandford, Thomas N. Blanton
  • Publication number: 20110092740
    Abstract: The method of using a bi-functional catalyst for the one-step preparation of para-aminophenol. The catalyst includes a mixture of a hydrogenation noble metal and a zirconium sulfate. Also, an improved single-step process for the preparation of para-aminophenol from nitrobenzene, in an aqueous medium, using the bi-functional catalyst.
    Type: Application
    Filed: November 7, 2008
    Publication date: April 21, 2011
    Applicants: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH, VINATI ORGANICS LTD (V.O.L.)
    Inventors: Francois Figueras, Abhay Deshpande, Lakshmi Kantam Mannepalli, Jeeva Ratnam Katuri, Sudarshan Reddy Ragireddy, Subrahmanya Sekhar Nujilla
  • Publication number: 20110038809
    Abstract: The present invention provides methods for treating or preventing diseases and disorders caused by iron-dependent pathogenic microorganisms, such as bacteria, fungi, and parasites, by applying a gallium compound to an affected area. In particular, the present invention provides methods for treating or preventing dental caries, vaginal infections, skin infections, and so forth. Gallium compounds can be formulated as toothpaste, mouthwash, cream, ointment, gel, solution, eye drops, suppository, and the like. Furthermore, the invention provides methods for controlling microbial growth on environmental surfaces, including those of toothbrush, denture, dental retainer, contact lens, catheter, food stuff, and so forth. In addition, the present invention provides animal feeds which contain gallium compounds that promote the animal growth and prevent the animals from infections as well as protect consumers from post processing infections.
    Type: Application
    Filed: October 31, 2006
    Publication date: February 17, 2011
    Inventors: Daniel P. Perl, Sharon Moalem
  • Patent number: 7887776
    Abstract: A method is disclosed for production of a sulfate-containing chlorine free salt and anhydrous gaseous HCl from a metal chloride (MClx), oleum and water. MClx and oleum are mixed together with a water-containing liquid, forming gaseous HCl and a solution of a sulfate-containing salt. The salt is precipitated from the solution, and in a preferred embodiment, the supernatant liquid from the precipitation is recycled to the reaction mixture as the water-containing liquid in subsequent reaction cycles. The exothermicity of the reaction between the water-containing liquid and the oleum is sufficient to remove chlorine in the form of substantially pure useful HCl and enables the process to proceed without additional heating of the reaction mixture. When the metal is potassium, this method produces high-purity novel sulfate salts with high potassium content K3(NH4)(SO4)2, 3K2SO4.MgSO4 and 3K2SO4.CanMg1-nSO4.
    Type: Grant
    Filed: June 15, 2008
    Date of Patent: February 15, 2011
    Inventor: Leonid Finkelshtein
  • Patent number: 7879303
    Abstract: Described is a method for the production of metal salts, wherein the cationic metal is preferably selected from Group I to IV metals and mixtures thereof and the anionic group is selected from phosphates, silicates, sulfates, carbonates, hydroxides, fluorides and mixtures thereof, and wherein said method comprises forming a mixture of at least one metal source that is a metal carboxylate with a mean carbon value per carboxylate group of at least 3 and at least one anion source into droplets and oxiding said droplets in a high temperature environment, preferably a flame. This method is especially suited for the production of calcium phosphate biomaterials such as hydroxyapatite (HAp,Cal0(P04)6(OH)2) and tricalcium phosphate (TCP,Ca3(P04)2) that exhibit excellent biocompatibility and osteoconductivity and therefore are widely used for reparation of bony or periodontal defects, coating of metallic implants and bone space fillers.
    Type: Grant
    Filed: March 15, 2004
    Date of Patent: February 1, 2011
    Assignee: Eidgenossische Technische Hochschule Zurich
    Inventors: Wendelin Jan Stark, Sotiris-Emmanuel Pratsinis, Marek Maciejewski, Stefan Fridolin Loher, Alfons Baiker
  • Publication number: 20100323064
    Abstract: An object of the present invention is to provide a novel agent for improving the viability of lactic acid bacteria, which has an excellent effect on the improvement of the viability of lactic acid bacteria in the product, has no adverse effect on the flavor of the product and requires less production cost. An agent for improving the viability of lactic acid bacteria characterized by using manganese as an effective ingredient. A manganese-containing material may be used as manganese. Manganese is preferably formulated at 5 ?g/100 g or more in the final product.
    Type: Application
    Filed: February 12, 2008
    Publication date: December 23, 2010
    Applicant: SNOW BRAND MILK PRODUCTS CO., LTD.
    Inventors: Mari Miura, Yasuyuki Seto, Masayuki Watanabe, Toshimitsu Yoshioka
  • Patent number: 7846409
    Abstract: The invention discloses deagglomerated barium sulphate which has an average primary particle size of less than 0.5 ?m and is coated with a dispersant. The dispersant has preferably reactive groups which are able to interact with the surface of the barium sulphate; particularly preferred dispersants are those which are able to endow the barium sulphate with a hydrophilic surface and have reactive groups for coupling to or into polymers. Also disclosed is a plastics premix comprising the deagglomerated, coated barium sulphate.
    Type: Grant
    Filed: December 1, 2004
    Date of Patent: December 7, 2010
    Assignee: Solvay Infra Bad Hoenningen GmbH
    Inventors: Ferdinand Hardinghaus, Christopher David Glende, Karl Hoehler, Won Jai Park, Rainer Stahl, Andreas Poppe
  • Publication number: 20100270517
    Abstract: 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: Application
    Filed: April 23, 2010
    Publication date: October 28, 2010
    Applicants: ELPANI CO., LTD., AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Yong Cheol Hong, Suck Hyun Lee, O. Pil Kwon, Tae Ja Kim
  • Patent number: 7799296
    Abstract: A method for converting nickel into a nickel salt solution. Nickel is dissolved and reacted in an oxygen-enriched acidic solution to produce a nickel salt solution as illustrated in the following chemical equation, wherein X is a conjugate base: Ni+H2X+½O2->NiX+H2O.
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: September 21, 2010
    Assignee: Ovonic Battery Company, Inc.
    Inventors: Michael A. Fetcenko, Cristian Fierro, Avram Zallen, Tim Hicks
  • Patent number: 7780941
    Abstract: A process for producing potassium magnesium sulfate, comprising reacting sulfuric acid with potassium chloride and magnesium chloride at a temperature in a range comprised between about 100 and about 160° C., thereby producing potassium magnesium sulfate and hydrochloric acid, the sulfuric acid being reacted with potassium chloride and magnesium chloride simultaneously or sequentially.
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: August 24, 2010
    Assignee: Nichromet Extraction Inc.
    Inventors: Jean-Marc Lalancette, David Lemieux, Bertrand Dubreuil
  • Publication number: 20100104493
    Abstract: Devices and components that can interact with or modify propagation of electromagnetic waves are provided. The design, fabrication and structures of the devices exploit the properties of reactive composite materials (RCM) and reaction products thereof.
    Type: Application
    Filed: March 11, 2009
    Publication date: April 29, 2010
    Inventors: Roderick A. Hyde, Muriel Y. Ishikawa, Edward K.Y. Jung, Jordin T. Kare, Nathan P. Myhrvold, Thomas J. Nugent, JR., Clarence T. Tegreene, Charles Whitmer, Lowell L. Wood, JR.
  • Patent number: 7695699
    Abstract: A metal sulfate alcohol composition as well as a process to produce such composition is disclosed. Also disclosed is a process to produce polyester containing the metal sulfate alcohol composition.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: April 13, 2010
    Inventor: Jiwen F. Duan
  • Patent number: 7678360
    Abstract: Alunite type compound particles represented by the following general formula (I) and having a specific value of D75/D25 when D25 is the particle diameter of particles which account for 25% of the total and D75 is the particle diameter of particles which account for 75% of the total in the cumulative particle size distribution curve measured by a laser diffraction method: Ma[Al1-xM?x]3(SO42?)y(OH)z.mH2O??(I) wherein M is at least one cation selected from the group consisting of Na+, K+, NH4+ and H3O+, M? is at least one cation selected from the group consisting of Cu2+, Zn2+, Ni2+, Sn4+, Zr4+ and Ti4+, and a, m, x, y and z satisfy 0.8?a?1.35, 0?m?5, 0?x?0.4, 1.7?y?2.5, and 4?z?7, respectively. The above particles of the present invention have a small average particle diameter, are spherical, disk-like or hexagonal and have an extremely narrow particle size distribution.
    Type: Grant
    Filed: April 6, 2006
    Date of Patent: March 16, 2010
    Assignee: Kyowa Chemical Industry Co., Ltd.
    Inventors: Akira Okada, Xing Dong Wang, Takatoshi Sato
  • Patent number: 7655212
    Abstract: An aqueous precipitation process for the preparation of particles comprising primarily silver sulfate, comprising reacting an aqueous soluble silver salt and an aqueous soluble source of inorganic sulfate ion in an agitated precipitation reactor vessel and precipitating particles comprising primarily silver sulfate, wherein the reaction and precipitation are performed in the presence of an aqueous soluble fluorinated additive, the amount of additive being a minor molar percentage, relative to the molar amount of silver sulfate precipitated, and effective to result in precipitation of particles comprising primarily silver sulfate having a mean grain-size of less than 50 micrometers.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: February 2, 2010
    Assignee: Eastman Kodak Company
    Inventors: David W. Sandford, Thomas N. Blanton
  • Publication number: 20090258984
    Abstract: An aqueous precipitation process for the preparation of particles comprising primarily silver sulfate, comprising reacting an aqueous soluble silver salt and an aqueous soluble source of inorganic sulfate ion in an agitated precipitation reactor vessel and precipitating particles comprising primarily silver sulfate, wherein the reaction and precipitation are performed in the presence of an aqueous soluble fluorinated additive, the amount of additive being a minor molar percentage, relative to the molar amount of silver sulfate precipitated, and effective to result in precipitation of particles comprising primarily silver sulfate having a mean grain-size of less than 50 micrometers.
    Type: Application
    Filed: April 11, 2008
    Publication date: October 15, 2009
    Inventors: David W. Sandford, Thomas N. Blanton
  • Patent number: 7601318
    Abstract: A method for the synthesis of compounds of the formula C—LixM1?yM?y(XO4)n, where C represents carbon cross-linked with the compound LixM1?yM?y(XO4)n, in which x, y and n are numbers such as 0?x?2, 0?y?0.6, and 1?n?1.5, M is a transition metal or a mixture of transition metals from the first period of the periodic table, M? is an element with fixed valency selected among Mg2+, Ca2+, Al3+, Zn2+ or a combination of these same elements and X is chosen among S, P and Si, by bringing into equilibrium, in the required proportions, the mixture of precursors, with a gaseous atmosphere, the synthesis taking place by reaction and bringing into equilibrium, in the required proportions, the mixture of the precursors, the procedure comprising at least one pyrolysis step of the carbon source compound in such a way as to obtain a compound in which the electronic conductivity measured on a sample of powder compressed at a pressure of 3750 Kg·cm?2 is greater than 10?8 S·cm?1.
    Type: Grant
    Filed: September 21, 2001
    Date of Patent: October 13, 2009
    Assignees: Hydro-Quebec, CNRS, Universite de Montreal
    Inventors: Michel Armand, Michel Gauthier, Jean-Francois Magnan, Nathalie Ravet
  • Patent number: 7575734
    Abstract: The invention is directed to a process for the manufacture of optionally doped nanoparticulate metal sulfate wherein the metal is selected from polyvalent metals or monovalent transition metals, said process comprising the step of heating a reaction mixture comprising a) a polar organic solvent comprising at least two hydroxy groups or a polar organic solvent comprising at least one sulfoxide group, b) a source of a polyvalent metal or monovalent transition metal, a sulfate source, and optionally a dopant metal source, and c) a base selected from i) bases having an aromatic N-containing heterocycle with the exception of imidazole, ii) bases having an aliphatic N-containing heterocycle, iii) aliphatic hydroxy-substituted amines, iv) aliphatic polyamines, v) aromatic amines, vi) ammonia and ammonia-releasing compounds, and vii) metal hydroxides. The invention is also directed to the resulting metal sulfate nanoparticles.
    Type: Grant
    Filed: May 4, 2004
    Date of Patent: August 18, 2009
    Assignee: Centrum fur Angewandte Nanotechnologie (CAN) GmbH
    Inventors: Michael Berkei, Heiner Pfundt
  • Publication number: 20090158895
    Abstract: The invention provides a method for the Industrial purification of a titanium feed stream of purity P1, by the formation of a titanium-double-salt precipitate of purity P2 and a titanium solution with purity P3, wherein P2>P1>P3, the method comprising the steps of: i. forming, from the feed, a medium comprising water, titanium ion, a cation selected from the group consisting of ammonium, cations of alkali metals, protons and a combination thereof, and an anion selected from the group consisting of OH, SO4, HSO4, halides and a combination thereof, which formed medium is further characterized by the presence of (a) a double-salt precipitate comprising titanium ion, at least one of the cations and at least one of the anions; and (b) a titanium solution; and wherein the concentration of the anion in the titanium solution is higher than 15% and the ratio between the concentrations of the cation and the anion in the titanium solution is higher than 0.2 and lower than 1.6; and ii.
    Type: Application
    Filed: October 15, 2006
    Publication date: June 25, 2009
    Inventors: Asher Vitner, Aharon Eyal, Revital Mali
  • Publication number: 20090130016
    Abstract: Provided is a thermionic cathode doped with an increased binding energy hydrogen species and a method of making the doped thermionic cathode.
    Type: Application
    Filed: May 21, 2008
    Publication date: May 21, 2009
    Inventor: Randell L. Mills