Sulfite Patents (Class 423/519.2)
  • Patent number: 11795084
    Abstract: Various embodiments relate to denitrification of water using bacteria. A method of denitrification of water includes deoxygenated water including a water-soluble form of nitrogen. The method includes exposing the deoxygenated water to denitrifying bacteria to convert the water-soluble form of nitrogen in the water to nitrogen gas that is removed and to form a denitrified water. The method also includes reoxygenating the denitrified water. Denitrifying bacterial substrates and methods of making the same are also provided.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: October 24, 2023
    Assignee: NuQuatic, LLC
    Inventors: Donald A. Luke, Ryan Eugene Dickinson, Janie Michelle Hinson
  • Publication number: 20140286927
    Abstract: A engineered composition and method of delivery of said composition providing effective therapy for the treatment of ulcerative colitis, and Crohn's disease.
    Type: Application
    Filed: June 19, 2012
    Publication date: September 25, 2014
    Inventor: Peter Edward Smith
  • Publication number: 20140170058
    Abstract: Residual palladium is removed and recovered from 4-amino-3-halo-5-fluoro-6-(aryl)pyridine-2-carboxylates and 4-amino-3-halo-6-(aryl)pyridine-2-carboxylates by treatment with an aqueous solution containing from about 20 to about 50% of an alkali metal bisulfite at a temperature from about 60 to about 90° C. and a pH from about 3.8 to about 7.0.
    Type: Application
    Filed: March 14, 2013
    Publication date: June 19, 2014
    Applicant: DOW AGROSCIENCES LLC
    Inventors: Jossian Oppenheimer, Mark V. M. Emonds
  • Patent number: 8545591
    Abstract: The present invention provides a new liquid fertilizer comprised of potassium sulfite and potassium bisulfite, with neutral to slightly alkaline pH, relatively lower salt index and potentially lower phytotoxicity damage compared to other sources of potassium and sulfur products applied in equal amounts as a starter fertilizer. More specifically, the present invention further relates to methods for fertilizing using a composition of potassium sulfite and potassium bisulfite, particularly as a starter fertilizer, in-furrow fertilizer, side dress fertilizer, and for foliar, broadcast, soil injection and fertigation applications. The fertilizer composition is comprised primarily of potassium sulfite and potassium bisulfite (with the fertilizer grade of 0-0-23-8S).
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: October 1, 2013
    Assignee: Tessenderlo Kerley, Inc.
    Inventors: Thomas D. Fairweather, Michael Massoud Hojjatie
  • Publication number: 20130171048
    Abstract: A solution mining method for recovering alkali values from a cavity of an underground ore formation comprising trona and/or wegscheiderite; a manufacturing process using such method to make sodium-based product(s); and a sodium-based product obtained therefrom. The method comprises: an ore dissolution phase (a) in which the incongruent double-salt in trona and/or wegscheiderite is dissolved from an ore face in a first solvent, and a cavity cleaning phase (b) in which sodium bicarbonate deposited on the ore face during the dissolution phase (a) is dissolved into a second aqueous solvent having a higher pH, hydroxide content, and/or temperature and is partly or completely converted in situ to sodium carbonate. The method further comprises withdrawing a liquor resulting from either phase to the ground surface, optionally recycling some liquor to the cavity; and passing some liquor through a crystallizer, a reactor, and/or an electrodialyser, to form at least one sodium-based product which is recovered.
    Type: Application
    Filed: December 21, 2012
    Publication date: July 4, 2013
    Applicant: SOLVAY SA
    Inventor: SOLVAY SA
  • Publication number: 20130120908
    Abstract: The invention relates to processes for the preparation of electrode compositions, especially those intended for use in supercapacitors. A process is provided for preparing lithium sulphite comprising the steps of:—a) introducing H2SO3 (aq) into a reaction vessel; b) reacting the H2SO3 (aq) with an aqueous suspension of Li2CO3 in the vessel to form an aqueous solution of Li2—CO3; and c) evaporating the solution to recover Li2CO3(s), wherein at least steps a) and b) are conducted under an inert atmosphere. Preferably, in step b) H2SO3 (aq) and Li2CO3 (aq) are reacted with each other in substantially equimolar amounts. There is also provided a process for forming an electrode material comprising a complexing step of causing lithium sulphite to form SO3 complexes at active N sites of a nitrogen-carbon structure, in the presence of a selected amount of a sink that absorbs the liberated lithium, so as to form the N:SO3 complexed electrode material.
    Type: Application
    Filed: August 19, 2011
    Publication date: May 16, 2013
    Applicant: QINETIQ LIMITED
    Inventor: Emmanuel Imasuen Eweka
  • Publication number: 20120305497
    Abstract: Fenton and Fenton-like system enhancing agent and the usage thereof are provided. It relates to a water treatment enhancer (enhancing agent) and the usage thereof. It widens water pH range of Fenton and Fenton-like system reaction. It reduces amount of Fe2+ required for Fenton reaction. It increases rate of Fenton-like reaction. The enhancing agent is selected from sodium sulfite, lithium sulfite, potassium sulfite, magnesium sulfite, calcium sulfite, hydroxylamine hydrochloride, hydroxylamine perchlorate, hydroxylamine sulfate, hydrazine, N,N-diethylhydroxylamine, amino ethanolamine, hydroxylamine solution or N,N,N?,N?-tetrasubstituted p-phenylenediamine. The method of use of enhancing agent comprises the steps of: adding Fenton or Fenton-like system enhancing agent, an agent for enhancement and hydrogen peroxide into water subject to treatment; and mixing and allowing reaction. The enhancing agent can increase the rate of reaction for the water treatment and reduce the dosage of the agent for enhancement.
    Type: Application
    Filed: October 18, 2010
    Publication date: December 6, 2012
    Applicant: HARBIN INSTITUTE OF TECHNOLOGY
    Inventors: Jun Ma, Liwei Chen, Xuchun Li, Jing Zhang, Yinghong Guan, Jingyun Fang
  • Publication number: 20120294866
    Abstract: The present invention provides a liquid pharmaceutical formulation comprising a therapeutic protein, a surfactant and at least an antioxidant selected from the group of radical scavengers, chelating agents or chain terminators.
    Type: Application
    Filed: January 14, 2010
    Publication date: November 22, 2012
    Applicant: F. HOFFMANN-LA ROCHE AG
    Inventors: Hanns-Christian Mahler, Satya Krishna Kishore Ravuri
  • Patent number: 8152891
    Abstract: The invention provides a method for the combined production of (I) a sulfur oxide containing product and (II) a fertilizer selected from a group consisting of ammonium nitrate, ammonium phosphates and a combination thereof, through an indirect neutralization of ammonia with an acid selected from the group consisting of nitric acid, phosphoric acid and a combination thereof, the method comprising: a. contacting a precipitate containing calcium sulfite with a solution of nitric acid and a solution of ammonia in two separate steps, to form the fertilizer, the sulfur oxide containing product and a precipitate containing calcium hydroxide; and b. separating at least portion of the fertilizer, the sulfur oxide and the calcium hydroxide into three separated streams.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: April 10, 2012
    Assignee: Clue AS
    Inventor: Riki Canari
  • Patent number: 8133399
    Abstract: Described herein is a cost effective method and system for removal of thiosulfate from a solution in-line with a process system. The method and system include passing the solution in contact with an open-structured substrate impregnated with a Group 16 element, which results in removal of thiosulfate from the solution and conversion of the thiosulfate to at least sulfite.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: March 13, 2012
    Assignee: ConocoPhillips Company
    Inventor: Mark A. Hughes
  • Publication number: 20110182799
    Abstract: A method of sequestering a multi-element gas emitted by an industrial plant is described herein, the method comprising: contacting a solution, including a first reactant comprising a multi-element gas emitted by an industrial plant and at least one gas absorber comprising nitrogen, for example ammonia or an amine, with a solid, including a second reactant, under conditions that promote a reaction between the first reactant and the second reactant to provide a first product, which incorporates one or more elements of the multi-element gas, thereby sequestering the multi-element gas.
    Type: Application
    Filed: January 18, 2011
    Publication date: July 28, 2011
    Applicant: Rutgers, The State University of New Jersey
    Inventors: Richard E. RIMAN, Qinghua Li
  • Patent number: 7985396
    Abstract: Processes for producing sodium bisulfite from sodium sulfite purge streams are disclosed which enable recovery of additional resource material including sodium bisulfite.
    Type: Grant
    Filed: July 11, 2008
    Date of Patent: July 26, 2011
    Assignee: Solvay Chemicals, Inc.
    Inventors: James Kisielewski, Don Robertson
  • Patent number: 7928033
    Abstract: The present invention relates to a catalyst for reducing mercury, which comprises a reagent comprising any of the sulfites of potassium, sodium, calcium and magnesium, or any of the phosphates thereof, or a combination of them, as a main reagent of a catalyst component. And the present invention relates to the catalyst for reducing mercury, wherein the catalyst component is mixed with a different salt as an agent for inhibiting crystallization of the catalyst component.
    Type: Grant
    Filed: March 15, 2007
    Date of Patent: April 19, 2011
    Assignees: Horiba, Ltd., Nippon Instruments Corporation
    Inventors: Shigeyuki Akiyama, Junji Kato, Fujio Koga, Koji Ishikawa
  • Patent number: 7771700
    Abstract: Systems are disclosed for making and using micro-porous particulates at least partially composed of metal sulfides, particularly alkaline earth metal and transition metal sulfides, as sorbents for removal of mercury from flue gas. Calcium sulfide micro-porous powders derived from the high temperature reduction of calcium sulfate and calcium sulfite are disclosed to be reactive substrates for a group of sorbents for adsorption of mercury from coal combustion flue gases produced by the utilities industry, as well as from natural gas and gaseous and liquid hydrocarbons. The sorbents are useful for cost-effectively adsorbing elemental mercury and oxidized mercury species such as mercuric chloride from flue gases, including those containing acid gases (e.g., SO.sub.2, NO and NO.sub.2, and HCl), over a wide range of temperatures.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: August 10, 2010
    Assignee: Chemical Products Corp.
    Inventors: Lloyd Ballard Mauldin, Jerry Allen Cook
  • Publication number: 20090130474
    Abstract: Regarding the scavenger for aldehyde(s) used at the time of manufacturing a woody panel using woody materials and formaldehyde-based binders, the scavenger for aldehyde(s) without lowering of trapping properly even when a surface of said woody panel is sanded and having an excellent trapping property of trapping formaldehyde is provided. Further, the method of manufacturing a woody panel using a scavenger for aldehyde(s) and a woody panel are provided. At least one kind of compound for trapping aldehyde(s) being solid at a room temperature is included and said compound for trapping aldehyde(s) is defined to be a powdery scavenger for aldehyde(s) having a property of generating acidic gas, in particular, sulfurous acid gas by heating and said compound for trapping aldehyde(s) is added to a binder or woody materials followed by a hot press, thereby manufacturing a woody panel.
    Type: Application
    Filed: June 29, 2006
    Publication date: May 21, 2009
    Applicant: IPPOSHA OIL INDUSTRIES CO., LTD.
    Inventors: Kenichi Ishimoto, Yukio Shirakami, Nobuyuki Shimada, Tomoyuki Mabuchi, Toshiya Takeuchi, Takashi Ikeda
  • Publication number: 20080245233
    Abstract: Fouling in basic washing systems such as caustic scrubbers can be prevented or at least mitigated by treating the liquid washing phase used in a caustic scrubber with an additive having at least one compound selected from the group consisting of oxalyl dihydrazide, a disulfite salt, isopropyl hydroxylamine, chlorobenzhydrazide, aminobenzhydrazide, a thiosulfate salt, 4,4-dimethyl oxazolidine, a hydrosulfite salt, and mixtures thereof.
    Type: Application
    Filed: April 3, 2008
    Publication date: October 9, 2008
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Zhenning Gu, Joseph L. Stark, Roger D. Metzler
  • Patent number: 7052669
    Abstract: A process for continuous production of ammonium thiosulphate, (NH4)2S2O3 (ATS) from NH3, H2S and SO2 is disclosed. A first feed stream comprising H2O, H2S and NH3 with a molar H2S:NH3 ratio <0.4 is partially condensed to form a condensate. The condensate is contacted with a third feed gas comprising H2S and the gas stream comprising NH3 and H2S is passed to a mixing device where the gas stream is dissolved in water drained off from an aerosol filter. A second feed gas stream comprising approximately ? mole SO2 per mole of NH3 contained in the first feed stream is passed to a SO2 absorber. The aqueous solution produced in mixing device is contacted with the SO2 absorber.
    Type: Grant
    Filed: June 19, 2003
    Date of Patent: May 30, 2006
    Assignee: Haldor Topsoe A/S
    Inventors: Peter Schoubye, Kurt Agerbæk Christensen
  • Patent number: 6680039
    Abstract: A method of treating metal-contaminated spent foundry sand, or other industrial waste, by combining the sand with a sulfite to produce insoluble metal sulfur oxide complexes that do not leach from the sand. The treated waste may also be processed to reducing “clumping,” thereby rendering the treated waste appropriate for use in another industrial process.
    Type: Grant
    Filed: November 5, 2002
    Date of Patent: January 20, 2004
    Inventors: Edward Carroll Hale, III, John E. Wildey
  • Patent number: 6555078
    Abstract: The present invention provides an inexpensive process for the preparation of lithium salts of formula LiX having a desired or required level of purity using lithium chloride and lithium sulfate. In the process of the invention, a lithium salt selected from lithium chloride, lithium sulfate, and combinations thereof is reacted with NaX or KX in a aqueous, semiaqueous, or organic solution and the precipitated salts are removed to obtain the LiX solution of desired purity. Preferably, a semiaqueous solution containing water and an organic solvent is used at some point in the reaction. The process of the invention eliminates the use of highly acidic materials and thus reduces the cost of raw materials and the need for specialized equipment.
    Type: Grant
    Filed: September 16, 1997
    Date of Patent: April 29, 2003
    Assignee: FMC Corporation
    Inventor: Vijay Chandrakant Mehta
  • Patent number: 6214313
    Abstract: Magnesium hydroxide of high purity, having a fine particle size suitable for use in flame retardants and other high-end uses, is produced by utilizing flue gas desulfurization system process slurry as feedstock; the production process is absent energy-intensive steps as well as high-cost chemical usage.
    Type: Grant
    Filed: April 13, 1999
    Date of Patent: April 10, 2001
    Assignee: Dravo Lime, Inc.
    Inventors: Daniel W. Berisko, Manyam Babu