Sulfite Patents (Class 423/519.2)
-
Patent number: 11795084Abstract: 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: GrantFiled: August 21, 2019Date of Patent: October 24, 2023Assignee: NuQuatic, LLCInventors: Donald A. Luke, Ryan Eugene Dickinson, Janie Michelle Hinson
-
Publication number: 20140286927Abstract: A engineered composition and method of delivery of said composition providing effective therapy for the treatment of ulcerative colitis, and Crohn's disease.Type: ApplicationFiled: June 19, 2012Publication date: September 25, 2014Inventor: Peter Edward Smith
-
Publication number: 20140170058Abstract: 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: ApplicationFiled: March 14, 2013Publication date: June 19, 2014Applicant: DOW AGROSCIENCES LLCInventors: Jossian Oppenheimer, Mark V. M. Emonds
-
Patent number: 8545591Abstract: 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: GrantFiled: May 10, 2012Date of Patent: October 1, 2013Assignee: Tessenderlo Kerley, Inc.Inventors: Thomas D. Fairweather, Michael Massoud Hojjatie
-
Publication number: 20130171048Abstract: 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: ApplicationFiled: December 21, 2012Publication date: July 4, 2013Applicant: SOLVAY SAInventor: SOLVAY SA
-
Publication number: 20130120908Abstract: 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: ApplicationFiled: August 19, 2011Publication date: May 16, 2013Applicant: QINETIQ LIMITEDInventor: Emmanuel Imasuen Eweka
-
Publication number: 20120305497Abstract: 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: ApplicationFiled: October 18, 2010Publication date: December 6, 2012Applicant: HARBIN INSTITUTE OF TECHNOLOGYInventors: Jun Ma, Liwei Chen, Xuchun Li, Jing Zhang, Yinghong Guan, Jingyun Fang
-
Publication number: 20120294866Abstract: 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: ApplicationFiled: January 14, 2010Publication date: November 22, 2012Applicant: F. HOFFMANN-LA ROCHE AGInventors: Hanns-Christian Mahler, Satya Krishna Kishore Ravuri
-
Patent number: 8152891Abstract: 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: GrantFiled: November 28, 2006Date of Patent: April 10, 2012Assignee: Clue ASInventor: Riki Canari
-
Patent number: 8133399Abstract: 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: GrantFiled: May 19, 2011Date of Patent: March 13, 2012Assignee: ConocoPhillips CompanyInventor: Mark A. Hughes
-
Publication number: 20110182799Abstract: 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: ApplicationFiled: January 18, 2011Publication date: July 28, 2011Applicant: Rutgers, The State University of New JerseyInventors: Richard E. RIMAN, Qinghua Li
-
Patent number: 7985396Abstract: Processes for producing sodium bisulfite from sodium sulfite purge streams are disclosed which enable recovery of additional resource material including sodium bisulfite.Type: GrantFiled: July 11, 2008Date of Patent: July 26, 2011Assignee: Solvay Chemicals, Inc.Inventors: James Kisielewski, Don Robertson
-
Patent number: 7928033Abstract: 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: GrantFiled: March 15, 2007Date of Patent: April 19, 2011Assignees: Horiba, Ltd., Nippon Instruments CorporationInventors: Shigeyuki Akiyama, Junji Kato, Fujio Koga, Koji Ishikawa
-
Patent number: 7771700Abstract: 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: GrantFiled: November 28, 2005Date of Patent: August 10, 2010Assignee: Chemical Products Corp.Inventors: Lloyd Ballard Mauldin, Jerry Allen Cook
-
Publication number: 20090130474Abstract: 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: ApplicationFiled: June 29, 2006Publication date: May 21, 2009Applicant: IPPOSHA OIL INDUSTRIES CO., LTD.Inventors: Kenichi Ishimoto, Yukio Shirakami, Nobuyuki Shimada, Tomoyuki Mabuchi, Toshiya Takeuchi, Takashi Ikeda
-
Publication number: 20080245233Abstract: 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: ApplicationFiled: April 3, 2008Publication date: October 9, 2008Applicant: BAKER HUGHES INCORPORATEDInventors: Zhenning Gu, Joseph L. Stark, Roger D. Metzler
-
Patent number: 7052669Abstract: 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: GrantFiled: June 19, 2003Date of Patent: May 30, 2006Assignee: Haldor Topsoe A/SInventors: Peter Schoubye, Kurt Agerbæk Christensen
-
Patent number: 6680039Abstract: 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: GrantFiled: November 5, 2002Date of Patent: January 20, 2004Inventors: Edward Carroll Hale, III, John E. Wildey
-
Patent number: 6555078Abstract: 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: GrantFiled: September 16, 1997Date of Patent: April 29, 2003Assignee: FMC CorporationInventor: Vijay Chandrakant Mehta
-
Patent number: 6214313Abstract: 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: GrantFiled: April 13, 1999Date of Patent: April 10, 2001Assignee: Dravo Lime, Inc.Inventors: Daniel W. Berisko, Manyam Babu