Co, S, Negative Element, Or Acid, Bindant Containing Patents (Class 252/189)
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Patent number: 8114367Abstract: A method of sequestering a greenhouse gas is described, which comprises: (i) providing a solution carrying a first reagent that is capable of reacting with a greenhouse gas; (ii) contacting the solution with a greenhouse gas under conditions that promote a reaction between the at least first reagent and the greenhouse gas to produce at least a first reactant; (iii) providing a porous matrix having interstitial spaces and comprising at least a second reactant; (iv) allowing a solution carrying the at least first reactant to infiltrate at least a substantial portion of the interstitial spaces of the porous matrix under conditions that promote a reaction between the at least first reactant and the at least second reactant to provide at least a first product; and (v) allowing the at least first product to form and fill at least a portion of the interior spaces of the porous matrix, thereby sequestering a greenhouse gas.Type: GrantFiled: November 14, 2008Date of Patent: February 14, 2012Assignee: Rutgers, The State University of New JerseyInventors: Richard E. Riman, Vahit Atakan
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Publication number: 20120015862Abstract: Disclosed are cleaning solutions. More particularly, non-toxic solutions of base, water, alcohol and detergent, that effectively and surprisingly eliminate contaminating aliphatic acids in aqueous solutions. When present as a foam or even a contaminating film remaining on various parts and surfaces, aliphatic acid contaminants can be present a large and costly problem in manufacturing operations, cleaning tasks, personal hygiene. The need to remove such contaminants arises in a myriad environments and situations, such as during the manufacture of detergents, pharmaceuticals, consumer products, coring and core analysis, manipulation of oils, fuels, fermentation applications, manufacture of emollients, moisturizers, liquors, foods such as seafood, milk, butter and other dairy products, water processing, paper products, tissue culture, reusable clinical equipment, and the like.Type: ApplicationFiled: July 14, 2011Publication date: January 19, 2012Applicant: AFFYMETRIX, INC.Inventors: Benjamin R. Travis, Ritesh Mittal, Seth M. Huff, Lijun M. Huang, Liang Tang
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Patent number: 7955522Abstract: An extraction aid has been found which provides for enhanced contaminate removal, such as metals and amines, from crude oils that uses components that are desirable in desalting processes as the components are water soluble, have low toxicity, are highly biodegradeable and exhibit high thermal stability. According to one embodiment of the invention, an extraction aid that provides enhanced extraction properties is comprised of a blend of acids, particularly water soluble acids. More specifically, a combination of two acids chosen from the group consisting of acetic acid, sulfuric acid, glycolic acid, citric acid and methanesulfonic acid.Type: GrantFiled: February 26, 2008Date of Patent: June 7, 2011Assignee: General Electric CompanyInventors: Alan E. Goliaszewski, Cato R. McDaniel
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Publication number: 20110120912Abstract: Compositions and processed for their use as additives for reducing the sulfur content of FCC gasoline employ a support material having deposited on its surface (a) a first metal component from Group IIB of the Periodic Table and (b) a second metal component from Group III or Group IV of the Periodic Table. The additive composition is preferably made of a montmorillonite clay support containing zinc and gallium, zinc and zirconium. Alternatively, the additive composition includes support material having deposited on its surface a metal component from Group III of the Periodic Table, preferably a montmorillonite clay support containing gallium. The clay is impregnated with the metal(s) using the known incipient wetness method and the dried powdered additive composition is preferably formed into shapes suitable for use in the FCC unit.Type: ApplicationFiled: July 30, 2009Publication date: May 26, 2011Inventors: Abdennour Bourane, Omer Refa Koseoglu, Musaed Salem Al-Ghrami, Christopher F. Dean, Mohammed Abdul Bari Siddiqui, Shakeel Ahmed
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Patent number: 7897062Abstract: Novel hydrated-lime slurry compositions are disclosed, which include a heat-stable polymeric dispersant. The polymeric dispersant is capable to withstand temperatures in excess of 212° F. experienced by the slurry as a result of the hydrolysis of quicklime to produce hydrated lime, and accordingly can be added to the slurry composition prior to the addition of quicklime. Methods for making such slurry compositions are also disclosed.Type: GrantFiled: April 13, 2010Date of Patent: March 1, 2011Assignee: Applied Specialties, Inc.Inventor: Clarence Scheurman, III
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Publication number: 20100326277Abstract: The present invention provides a novel piperazinium trifluoroacetate compound prepared by reacting piperazine with trifluoroacetic acid and a carbon dioxide absorbent prepared by dissolving the compound in an ionic liquid or organic solvent. According to the present invention, the carbon dioxide absorbent has excellent carbon dioxide absorption capacity and low solvent loss, and the energy consumption required for the carbon dioxide absorption and desorption is significantly reduced.Type: ApplicationFiled: November 4, 2009Publication date: December 30, 2010Applicants: HYUNDAI MOTOR COMPANYInventors: Sung Yeup Chung, Ki Chun Lee, Seok Jin Choi, Hoon Sik Kim, Jelliarko Palgunadi, Je Eun Kang
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Publication number: 20100308261Abstract: A system (100) of the present invention for producing an iodine compound includes: a raw material adjusting unit (1) for supplying hydrogen-containing gas to at least one of liquid iodine in an iodine melting pot (4) and gaseous iodine obtained by evaporating liquid iodine so as to obtain a mixture gas; a hydrogen iodide producing unit (10) including a hydrogen iodide producing tower (12) having a catalyst layer (12a) for converting the introduced mixture gas into crude hydrogen iodide gas; a hydrogen iodide refining unit for removing unreacted iodine from the introduced crude hydrogen iodide gas so as to obtain hydrogen iodide gas; and an iodine compound producing unit (30) for producing a target iodine compound from the obtained hydrogen iodide gas and a reaction material. This allows producing an iodine compound with high purity easily, efficiently, and with low cost.Type: ApplicationFiled: January 29, 2009Publication date: December 9, 2010Applicant: Nippoh Chemicals Co., LtdInventors: Satoshi Kanbe, Kazumi Hosono, Masahiro Wada
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Publication number: 20100227229Abstract: [Problems] To provide a method for desulfurization with a desulfurizing agent, which can efficiently desulfurize, for example, a hydrocarbon oil as a raw material and fuel for generating hydrogen for use in fuel cells, particularly kerosenes and light oils, without the need to use reduction treatment and hydrogen and at a temperature from room temperature to about 100° C., and a fuel cell system using the desulfurization method. There are also provided a solid acid useful as a constituent of the desulfurizing agent for use in the desulfurization method, and a process for producing the solid acid. [Means for Solving Problems] A solid acid comprising 20 to 99.9% by mass of aluminum oxide and 0.10 to 3.00% by mass of sulfur and having a specific surface area of not less than 150 m2/g and a pore volume of not less than 0.35 ml/g, and an I1540/I1450 ratio of 0.Type: ApplicationFiled: September 4, 2008Publication date: September 9, 2010Applicant: JAPAN ENERGY CORPORATIONInventors: Yasuhiro Toida, Masataka Herai
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Patent number: 7718085Abstract: Novel hydrated-lime slurry compositions are disclosed, which include a heat-stable polymeric dispersant. The polymeric dispersant is capable to withstand temperatures in excess of 212° F. experienced by the slurry as a result of the hydrolysis of quicklime to produce hydrated lime, and accordingly can be added to the slurry composition prior to the addition of quicklime. Methods for making such slurry compositions are also disclosed.Type: GrantFiled: November 12, 2007Date of Patent: May 18, 2010Assignee: Applied Specialties, Inc.Inventor: Clarence Scheurman, III
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Patent number: 7718149Abstract: An additive and method of use for treating flue gas of a coke-fired cupola following removal of the blast air during shutdown to adjust the charge and reduce acid buildup in the condensate and corrosion in downstream equipment by injecting into the flue gas a finely divided spray comprising an additive containing a volatile amine mixed with an antistatic agent that creates a positive static charge in the additive, and elevates the pH of the condensate by reducing the formation of sulfuric acid from entrained sulfur-containing compounds.Type: GrantFiled: July 11, 2008Date of Patent: May 18, 2010Assignee: NCH CorporationInventor: Donald A. Cameron
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Publication number: 20100086924Abstract: The invention provides the use of tetraethylene glycol dimethyl ether for adsorbing nucleic acids to solid phases such as those with silica surfaces. To this end, the invention also provides compositions comprising TDE. Methods are disclosed and claimed to purify nucleic acids from samples, as well as kits useful for performing these methods. Particularly, the invention encompasses methods for the purification of nucleic acids with low molecular weight. The nucleic acids purified by a method of the invention are suited for assays aiming at the detection of a target nucleic acid.Type: ApplicationFiled: June 10, 2009Publication date: April 8, 2010Inventors: Horst Donner, Frank Bergmann, Nina Lassonczyk, Manfred Watzele, Marcus Schmid
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Publication number: 20100086923Abstract: The invention provides the use of water-miscible liquid cyclic acetals for adsorbing a nucleic acid to a solid phase such as a substrate with a silica surface. To this end, the invention also provides compositions comprising said acetals. Methods are disclosed and claimed to purify nucleic acids from samples, as well as kits useful for performing these methods. The nucleic acids purified by a method of the invention are suited for assays aiming at the detection of a target nucleic acid.Type: ApplicationFiled: June 9, 2009Publication date: April 8, 2010Inventors: Horst Donner, Frank Bergmann, Nina Lassonczyk, Bernd Buchberger
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Patent number: 7662416Abstract: Acid-neutralizing agent contains substantial amount of calcium of an acid-neutralizing ability against various acid chemicals substance for humans, animals, agricultural produces, meat and poultry. And the method of producing the same are provided. An environmental friendly high speed and high press scraping treatment is applied to a calcium-containing substance represented by calcium carbonate-containing substances originating from shellfishes, to eliminate heavy metals and other contamination accumulated on the surface. A heating and baking treatment is applied separately to the different said shellfishes and calcium carbonate-containing minerals and charcoal of bamboo to the temperature and maintaining the temperature not less then the decompose point of each calcium component-containing substance, a sufficient time of heating and baking treatment from 3 hours up to 18 hours depend on materials treated.Type: GrantFiled: April 27, 2006Date of Patent: February 16, 2010Inventor: Tieh-Chun Tang
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Publication number: 20100028232Abstract: A composition for removing mercaptan from a gas stream containing at least one acid gas in addition to a mercaptan, the composition comprising a physical and/or chemical solvent for H2S and an inclusion compound for the mercaptan. A process of treating gas stream using the composition. The inclusion compound is selected from the group consisting of, cyclodextrin, cryptand, calixarene. cucurbituril. The chemical solvent may be monoethanolamine (MEA), diethanolamine (DEA), triethanolamine (TEA, diisopropylamine (DIPA), diglycolamine (DGA) and methyldiethanolamine (MDEA). Examples of useful physical solvents include cyclotetramethylene sulfone (sulfolane) and its derivatives, aliphatic acid amides, NMP (n-methylpyrrolidone), N-alkylated pyrrolidones and corresponding piperidone methanol and mixtures of dialkethers of polyethylene glycols. The method copirses scrubbing preferably the natural gas with an aqueous solution comprising the above compounds followed by a stripping regeneration step.Type: ApplicationFiled: December 11, 2007Publication date: February 4, 2010Applicant: DOW GLOBAL TECHNOLOGIES INC.Inventor: Stephen A. Bedell
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Publication number: 20100012553Abstract: The present invention relates to making tetra-sulfo iron-phthalocyanine by reacting sulfonated reactant(s) in the presence a boron-containing promoter. The present invention also relates to making tetra-sulfo iron phthalocyanine more tolerant to oxygen by combining the tetra-sulfo iron-phthalocyanine with a stabilizing amount of a complexing agent (e.g., a stabilizing amine) and/or contacting the tetra-sulfo iron-phthalocyanine with steam.Type: ApplicationFiled: December 21, 2007Publication date: January 21, 2010Inventors: John M. Griffin, Stephen A. Bedell, Clare M. Worley
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Publication number: 20090288993Abstract: An adsorbent for desulfurizing cracking gasoline or diesel fuel comprising 1) pillared clay, (2) inorganic oxide binder, (3) an oxide of one or more metals selected from Groups IIB, VB and VIB, and (4) at least one metal accelerant selected from cobalt, nickel, iron and manganese. The adsorbent exhibits excellent abrasion-resistant strength and desulfurization performance.Type: ApplicationFiled: May 19, 2009Publication date: November 26, 2009Applicants: China Petroleum & Chemical Corporation, Research Institute of Petroleum Processing, SinopecInventors: Jun LONG, Huiping TIAN, Wei LIN
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Publication number: 20090250389Abstract: A synergistic composition is provided for controlling odor from waste products. The composition comprises a combination of nitrate salt, sulfide-consuming compound, pH-elevating compound, sulfide-oxidizing, nitrate-reducing bacteria, and sulfide-oxidizing enzyme. The method includes adding a sufficient amount of the composition to a waste stream to provide sufficient sulfide-consuming compound to effect immediate removal of sulfide. The composition incorporates a pH elevating compound, which both decreases the amount of gaseous H2S and puts the aqueous phase into a pH range where naturally occurring bacteria can more easily metabolize the sulfide. The composition also includes one or more nitrate salts which will accomplish longer term prevention of odors. Specific bacteria are incorporated into the formulation to insure that the nitrate has the right type and amount of bacteria present to prevent formation of and/or consume sulfide.Type: ApplicationFiled: May 15, 2009Publication date: October 8, 2009Applicant: Siemens Water Technologies Corp.Inventors: Gregory D. Simpson, Glenn W. Holden
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Publication number: 20090230027Abstract: Improved desulfurization compositions are provided for removing substantial fractions of sulfur, sulfur complexes, and sulfur compounds from liquid hydrocarbons such as crude oil and fuels. The preferred compositions comprise respective quantities of an alkylphenol ethoxylate, an amine, and an alkali metal nitrite. The compositions may be contacted with liquid hydrocarbons to achieve high levels of desulfurization.Type: ApplicationFiled: May 20, 2009Publication date: September 17, 2009Applicant: JACAM CHEMICALS, LLCInventors: Gene H. Zaid, Beth Ann Wolf, Gary W. Zorn
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Patent number: 7585430Abstract: There is disclosed a plate-shaped pressed body (wafer) produced from an inorganic sorbent and a binder, having a thickness of less than 700 ?m, which is produced by the process of compressing a mixture of the inorganic sorbent, the binder, and optionally water and compression aids at a pressure of at least 70 MPa, wherein the weight ratio of dry sorbent to dry binder is between about 4 and 0.7 and the water content of the mixture, measured at 160° C., is between 8 and 20%; and calcining the resulting pressed body at temperatures of at least about 500° C., until the water content is substantially removed.Type: GrantFiled: March 22, 2006Date of Patent: September 8, 2009Assignee: Sud-Chemie AGInventors: Stefan O. Dick, Arthur E. Schepf, Tateshi Kimura, Andrew J. Robertson, Mike Gaffney
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Publication number: 20090220397Abstract: A system and method for acid-gas capture wherein organic acid-gas capture materials form hetero-atom analogues of alkyl-carbonate when contacted with an acid gas. These organic-acid gas capture materials include combinations of a weak acid and a base, or zwitterionic liquids. This invention allows for reversible acid-gas binding to these organic binding materials thus allowing for the capture and release of one or more acid gases. These acid-gas binding organic compounds can be regenerated to release the captured acid gasses and enable these organic acid-gas binding materials to be reused. This enables transport of the liquid capture compounds and the release of the acid gases from the organic liquid with significant energy savings compared to current aqueous systems.Type: ApplicationFiled: April 22, 2009Publication date: September 3, 2009Applicant: BATTELLE MEMORIAL INSTITUTEInventors: David J. Heldebrant, Clement R. Yonker, Phillip K. Koech
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Publication number: 20090211446Abstract: Compositions and methods related to the removal of acidic gas. In particular, the present disclosure relates to a composition and method for the removal of acidic gas from a gas mixture using a solvent comprising a diamine (e.g., piperazine) and carbon dioxide. One example of a method may involve a method for removing acidic gas comprising contacting a gas mixture having an acidic gas with a solvent, wherein the solvent comprises piperazine in an amount of from about 4 to about 20 moles/kg of water, and carbon dioxide in an amount of from about 0.3 to about 0.Type: ApplicationFiled: January 7, 2009Publication date: August 27, 2009Inventors: Gary Rochelle, Marcus Hilliard
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Publication number: 20090155155Abstract: An additive and method of use for treating flue gas of a coke-fired cupola following removal of the blast air during shutdown to adjust the charge and reduce acid buildup in the condensate and corrosion in downstream equipment by injecting into the flue gas a finely divided spray comprising an additive containing a volatile amine mixed with an antistatic agent that creates a positive static charge in the additive, and elevates the pH of the condensate by reducing the formation of sulfuric acid from entrained sulfur-containing compounds.Type: ApplicationFiled: July 11, 2008Publication date: June 18, 2009Inventor: Donald A. Cameron
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Publication number: 20090145849Abstract: There is disclosed herein a solution for removing a sulphur compound or carbon dioxide from a fluid and methods for its use, said solution comprising a metal at between about 0.05 to 25 percent by weight, an amine at between about 10 to 80 percent by volume and water. The sulphur compound may be hydrogen sulphide or a mercaptan. In one aspect, the method is practiced at temperatures significantly below zero.Type: ApplicationFiled: July 6, 2006Publication date: June 11, 2009Applicant: DIVERSIFIED INDUSTRIES LTD.Inventors: STEPHEN L. DAVIS, DALE STOREY
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Patent number: 7374734Abstract: The disclosure relates to an absorbent for removing acid gases from fluids. The absorbent contains at least one tertiary amine, an amine which is selected from hydroxyethylpiperazine, bis(hydroxyethylpiperazine) or a mixture of these and piperazine. The absorbent may optionally contain a physical solvent for the acid gases.Type: GrantFiled: January 24, 2004Date of Patent: May 20, 2008Assignee: BASF AktiengesellschaftInventors: Christoph Grossman, Norbert Asprion
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Patent number: 7312251Abstract: Stable rare earth tris (organophosphate) solutions comprise a rare earth tris (organophosphate) and a hydrocarbon solvent. From about 2% to about 10% rare earth element, preferably from about 3% to about 8%, is present in the solutions. The rare earth tris (organophosphate) solutions are stable from precipitation of the rare earth tris (organophosphate) for at least about fifteen (15) days, preferably for at least about twenty (20) days and most preferably at least about thirty (30) days. A process for preparing these solutions is described herein. A stabilizing additive, acid, glycol or mixtures thereof, is utilized to inhibit precipitation. The molar ratios of free acid, glycol and/or water to the rare earth element are controlled to inhibit precipitation.Type: GrantFiled: April 7, 2004Date of Patent: December 25, 2007Assignee: Rhodia Rare Earths, Inc.Inventors: Kenan Yunlu, Min He
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Patent number: 7135127Abstract: A disk-shaped wafer is described which is based on an inorganic sorbent and a binder, with a thickness of less than 700 microns, which can be obtained by pressing a mixture of the inorganic sorbent, about 20 to 60% by weight of the binder and about 10 to 15% by weight water at a pressure of at least 70 MPa; and calcining the resulting green wafer at temperatures of at least about 500° C. until the water content is substantially removed.Type: GrantFiled: December 12, 2000Date of Patent: November 14, 2006Assignee: Süd-Chemie AGInventor: Stefan O. Dick
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Patent number: 7115215Abstract: A method and composition for reducing the levels of hydrogen sulphide and mercaptans in hydrocarbon streams. The method comprises contacting the gas stream with a composition comprising the reaction product of mixing monoethanolamine, diglycolamine and formaldehyde. The use of the method and composition alleviates problems associated with crystalline dithiazine depost build-up associated with the use of triazine based scavengers.Type: GrantFiled: April 9, 2003Date of Patent: October 3, 2006Assignee: Canwell Enviro-Industries, Ltd.Inventors: Clive Willaim Titley, Peter Hans Wieninger
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Patent number: 7094820Abstract: Bicyclic nucleator compounds that provide highly versatile nucleation benefits for different polyolefins are provided. Such nucleator compounds provide very high peak crystallization temperatures and significantly reduced crystallization cycle time for certain thermoplastic formulations with or without the presence of other calcium stearate and/or peroxide components within the same type of formulation. Furthermore, such inventive nucleator compounds exhibits very little if any fugitivity from such thermoplastic formulations thereby providing excellent processing characteristics as well as excellent nucleation capabilities for a variety of different thermoplastic resins, independent of the presence of different, potentially necessary, additives (such as calcium stearate). Thermoplastic compositions as well as thermoplastic additive packages comprising such inventive nucleator compounds are also contemplated within this invention.Type: GrantFiled: November 5, 2002Date of Patent: August 22, 2006Assignee: Milliken & CompanyInventors: Xiaodong Edward Zhao, Darin L. Dotson
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Patent number: 6939393Abstract: A description is given of the use of an alkylenediamine of the type R1HN—X—NHR2, where X is an alkylene radical having from 2 to 9 carbons, R1 is a hydrocarbon radical having from 1 to 6 carbons and R2 is a hydrocarbon radical having from 1 to 6 carbons or is hydrogen (H) for removing sour gases from a sour-gas-containing fluid stream, and of a process for deacidifying a fluid stream of this type and a wash liquid or absorption liquid for use in such a process. According to the invention, in at least one absorption step, the fluid stream is brought into intimate contact with a wash liquid, the wash liquid comprising an aqueous amine solution which comprises at least one tertiary aliphatic alkanolamine having from 2 to 12 carbons and an activator of the above type R1HN—X—NHR2. The fluid stream which is substantially freed from sour gases and the sour-gas-loaded wash liquid are then separated from one another.Type: GrantFiled: July 24, 2001Date of Patent: September 6, 2005Assignee: BASF AktiengesellschaftInventors: Norbert Asprion, Christoph Grossmann
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Patent number: 6767927Abstract: Stable rare earth tris (organophosphate) solutions comprise a rare earth tris (organophosphate) and a hydrocarbon solvent. From about 2% to about 10% rare earth element, preferably from about 3% to about 8%, is present in the solutions. The rare earth tris (organophosphate) solutions are stable from precipitation of the rare earth tris (organophosphate) for at least about fifteen (15) days, preferably for at least about twenty (20) days and most preferably at least about thirty (30) days. A process for preparing these solutions is described herein. A stabilizing additive, acid, glycol or mixtures thereof, is utilized to inhibit precipitation. The molar ratios of free acid, glycol and/or water to the rare earth element are controlled to inhibit precipitation.Type: GrantFiled: April 25, 2000Date of Patent: July 27, 2004Assignee: Rhodia Rare Earths Inc.Inventors: Kenan Yunlu, Min He
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Patent number: 6746623Abstract: The present invention pertains to a method for controlling the foaming of a waterborne composition or in an industrial process utilizing a waterborne composition by the incorporation of a foam controlling agent in an amount effective for controlling foam. The method comprises utilizing as the foam controlling agent an alkyl glycidyl ether-capped diamine compound of the formula: L is a linker group comprising a linear, branched, or cyclic alkyl group having from 2 to about 6 carbon atoms or an alkyl ether group having from about 4 to about 8 carbon atoms. R is independently selected from hydrogen or —CH2CHOHCH2OR′. R′ is an alkyl group having from about 4 to about 22 carbon atoms. The compound generates an initial foam height at least 30% less than a 0.1 wt % aqueous solution of dioctyl sodium sulfosuccinate (DOSS), when added at 0.1 wt % to the aqueous DOSS solution. The present invention also pertains to an aqueous composition comprising the foam controlling agent.Type: GrantFiled: February 1, 2002Date of Patent: June 8, 2004Assignee: Air Products and Chemicals, Inc.Inventors: Caroline Sassano Slone, Kevin Rodney Lassila
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Publication number: 20040011993Abstract: Acid neutralizing composition, sheet and method of using the same allow control of the pH of surfaces that form and contact an object such as, a work of art, a historical artifact and a craft item. Controlling the pH of the surface can help preserve and protect the object from degrading over periods of storage or display. Acid neutralizing composition can be used on hands or any surface which contacts the object to neutralize acidic moieties on the surface of the object without leaving a residue on the hand or object.Type: ApplicationFiled: July 18, 2002Publication date: January 22, 2004Inventors: Scott D. Ficken, Dennis W. Peterson, Gary Cude
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Publication number: 20030234383Abstract: A method and composition for reducing the levels of hydrogen sulphide and mercaptans in hydrocarbon streams. The method comprises contacting the gas stream with a composition comprising the reaction product of mixing monoethanolamine, diglycolamine and formaldehyde. The use of the method and composition alleviates problems associated with crystalline dithiazine depost build-up associated with the use of triazine based scavengers.Type: ApplicationFiled: April 9, 2003Publication date: December 25, 2003Applicant: CANWELL ENVIRO-INDUSTRIES, LTD.Inventors: Clive Willaim Titley, Peter Hans Wieninger
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Publication number: 20030183802Abstract: A composition comprising silver oxide and a promoter, wherein at least a portion of the promoter is present as a reduced valence promoter and methods of preparing such composition are disclosed. The thus-obtained composition is employed in a desulfurization zone to remove sulfur from a hydrocarbon stream.Type: ApplicationFiled: March 28, 2002Publication date: October 2, 2003Inventors: Ashley G. Price, Jason J. Gislason, Glenn W. Dodwell, Robert W. Morton
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Publication number: 20030183803Abstract: A composition comprising copper oxide and a promoter, wherein at least a portion of the promoter is present as a reduced valence promoter and methods of preparing such composition are disclosed. The thus-obtained composition is employed in a desulfurization zone to remove sulfur from a hydrocarbon stream.Type: ApplicationFiled: March 28, 2002Publication date: October 2, 2003Inventors: Ashley G. Price, Jason J. Gislason, Glenn W. Dodwell, Robert W. Morton
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Patent number: 6627110Abstract: Hydrogen sulfide is removed from gas streams by reaction with sulfur dioxide to produce sulfur. The reaction is effected in a reaction medium comprising a non-aqueous Lewis base with a pKb value of about 6 to about 11.Type: GrantFiled: November 12, 1999Date of Patent: September 30, 2003Assignee: Apollo Environmental Systems Corp.Inventors: James W. Smith, Silvano Meffe, Peter S. Walton, David T. R. Ellenor
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Patent number: 6602443Abstract: An improved composition and method for acid gas treatment, comprising an effective amount of tetraethylene glycol dimethyl ether, optionally in combination with other alkyl ethers of alkylene glycols. Utilization of a predominance of tetraethylene glycol dimethyl ether produces significant benefits in carbon dioxide slip in, e.g., ammonia systhesis plants. A solvent based predominantly on tetraethylene glycol dimethyl ether can be used neat or can be added to the existing recirculating solvent stream to increase the concentration of tetraethylene glycol dimethyl ether to a satisfactory level.Type: GrantFiled: September 20, 2001Date of Patent: August 5, 2003Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: David Burns, Rickey Epps
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Patent number: 6592779Abstract: An improved composition and method for acid gas treatment, comprising an effective amount of tetraethylene glycol dimethyl ether, optionally in combination with other alkyl ethers of alkylene glycols. Utilization of a predominance of tetraethylene glycol dimethyl ether produces significant benefits in carbon dioxide slip in, e.g., ammonia systhesis plants. A solvent based predominantly on tetraethylene glycol dimethyl ether can be used neat or can be added to the existing recirculating solvent stream to increase the concentration of tetraethylene glycol dimethyl ether to a satisfactory level.Type: GrantFiled: October 23, 1995Date of Patent: July 15, 2003Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: David Burns, Rickey Epps
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Patent number: 6582574Abstract: pK-matched buffers, each containing two effective buffering components: one weak base and one weak acid which have similar pKa at 25° C. (within 0.3 pK units On agarose gels, the buffers in various concentrations were tested for separation of double-stranded DNA fragments with various DNA markers, agarose gel concentrations, and field strengths. Mobility was inversely proportional to the logarithm of molecular weight. The buffers provided high resolution without smearing at more dilute concentration than is possible with standard TAE (Tris/Acetate, pH 8.0) or TBE (Tris/Borate, pH 8.3) buffers. The buffers were also tested in 7M urea denaturing LongRanger™ sequencing gels and in non-denaturing polyacrylamide SSCP gels. The pK-matched buffers provide good separation and high resolution, at a broad range of potential pH values.Type: GrantFiled: March 28, 2000Date of Patent: June 24, 2003Assignee: City of HopeInventors: Qiang Liu, Steve S. Sommer
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Publication number: 20030015687Abstract: There is disclosed a plate-shaped pressed body (wafer) produced from an inorganic sorbent and a binder, having a thickness of less than 700 &mgr;m, which is produced by the process of compressing a mixture of the inorganic sorbent, the binder, and optionally water and compression aids at a pressure of at least 70 MPa, wherein the weight ratio of dry sorbent to dry binder is between about 4 and 0.7 and the water content of the mixture, measured at 160° C., is between 8 and 20%; and calcining the resulting pressed body at temperatures of at least about 500° C., until the water content is substantially removed.Type: ApplicationFiled: January 7, 2002Publication date: January 23, 2003Applicant: Sud-Chemie AGInventors: Stefan O. Dick, Tateshi Kimura, Arthur E. Schepf, Greg Morgan, Tim Luong, Andrew J. Robertson, Mike Gaffney
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Patent number: 6436311Abstract: A sampling material for a carbonyl compound in a gas comprising a reagent capable of converting a carbonyl compound to a derivative thereof supported on a cation exchanger; and a sampling cartridge for a carbonyl compound in a gas wherein a sampling material for a carbonyl compound in a gas comprising a reagent capable of converting a carbonyl compound to a derivative thereof supported on a cation exchanger is packed in a column are provided. The sampling cartridge can be used for analyzing a carbonyl compound such as formaldehyde with ease and at a high sensitivity and high accuracy, and has excellent storage stability.Type: GrantFiled: December 28, 2000Date of Patent: August 20, 2002Assignee: Sumika Chemical Analysis Service, Ltd.Inventors: Takashi Harimoto, Kazuya Kitasaka, Shinji Hirose
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Patent number: 6352653Abstract: An acid component-removing agent which comprises sodium hydrogencarbonate having a volume-based mean particle diameter of from 1 to 9 &mgr;m as measured by a laser diffraction and scattering method.Type: GrantFiled: November 24, 1999Date of Patent: March 5, 2002Assignee: Asahi Glass Company Ltd.Inventors: Hachiro Hirano, Makoto Yoshida, Hiroaki Noda, Shigeru Sakurai, Makoto Kusaka, Masaharu Tanaka
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Patent number: 6342169Abstract: The invention relates to a method of confining sulfur dioxide for storage or transportation under safe conditions. The method of the invention comprises the steps of (a) contacting a sulfur dioxide-containing gas stream with an absorbing medium comprising water and a water-soluble amine absorbent having at least one amine group with a pKa value greater than about 7 and at least one other amine group with a pKa value less than about 6.5 so that the at least one amine group with a pKa value greater than about 7 irreversibly absorbs sulfur dioxide in salt form rendering the amine absorbent non-volatile and the at least one other amine group with a pKa value less than about 6.5 reversibly absorbs sulfur dioxide, to thereby saturate the absorbing medium with sulfur dioxide against a partial pressure of sulfur dioxide of no more than about 1 atmosphere at 25° C.; and (b) charging the absorbing medium saturated with sulfur dioxide obtained in step (a) into a container for storage or transportation.Type: GrantFiled: August 25, 1999Date of Patent: January 29, 2002Assignee: Cansolv Technologies, Inc.Inventors: Leo E. Hakka, Paul J. Parisi
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Patent number: 6337059Abstract: An absorbent composition for the removal of acid gases, such as CO2, H2S and COS, from gas streams is provided. The absorbent composition comprises an aqueous solution comprising: 1) greater than 1 mole piperazine per liter of aqueous solution; and 2) about 1.5 to about 6 moles methyldiethanolamine per liter of aqueous solution.Type: GrantFiled: May 3, 1999Date of Patent: January 8, 2002Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Craig Norman Schubert, Paulino Forte, John Wayne Dean
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Publication number: 20010054707Abstract: The invention has an object to provide a solid chloride absorbent which can efficiently absorb inorganic chlorides such as hydrogen chloride flowing out from a process in which a heavy naphtha and the like are treated and inorganic chloride derived from crude oil, and which is difficult to powder and soften after absorbing the chlorides. The solid chloride absorbent according to the invention comprises zinc oxide, a porous refractory inorganic matter and an inert binder, has a long life, and hardly releases the absorbed chlorides.Type: ApplicationFiled: June 7, 1999Publication date: December 27, 2001Inventors: TSUNEYOSHI TAKASE, NOBUYOSHI HAYASHI, YASUSHI SHIOYA, KAORU FUJIWARA, MITSUHIRO OHASHI
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Patent number: 6309618Abstract: A treating method comprising contacting a fluorine-containing interhalogen compound first with a treating agent for the fluorine component and then with a treating agent for the halogen component, treating agents therefor, and a method for treating exhaust gas containing a fluorine-containing interhalogen compound, comprising filling a treating agent for the fluorine component into the internal cylinder of a treating apparatus having a double cylinder structure consisting of an internal cylinder and an external cylinder, filling a treating agent for the halogen component into the external cylinder, feeding exhaust gas containing a fluorine-containing interhalogen compound into the internal cylinder to travel the internal cylinder and the external cylinder in this order, and then discharging the treated gas from the external cylinder.Type: GrantFiled: October 28, 1999Date of Patent: October 30, 2001Assignee: Showa Denko K. K.Inventors: Manabu Ohira, Junichi Torisu, Yasuyuki Hoshino, Yuji Sakai, Andrei S. Kuznetsov
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Patent number: 6267939Abstract: An absorbent composition for purifying gases which contain acidic components. The composition contains at least one compound of formula (I), wherein n is 2-6, p is 1-3, the R1 groups may be the same or different and represent hydrogen or C1-3 alkyl, and R2 is hydrogen, C1-3 alkyl or a group of formula (II). The composition is an aqueous solution of 20-60 w/w %.Type: GrantFiled: March 21, 2000Date of Patent: July 31, 2001Assignees: Huntsman Corporation Hungary Vegyipari Termelo-Fejleszto Reszvenytarsasag, Mol Magyar Olaj-Es Gazipari Rt., Alkoto-Pannon Muszaki Fejleszto es Szolgaltato KFTInventors: Istvan Gemes, Tamas Drozda, Gyorgy Borsi, Peter Aranyi, Miklos Nyari, Katalin Novotnik, Arpad Vago, Laszlo Beliczay, Karoly Olah, Gyorgy Csoor, Levente Kotsis, Zoltan Nagy, Ervin Vertesi
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Patent number: 6207121Abstract: Alkanolamines of the formula R—NHCH2CH(OH)CH2CH3 (I) or mixtures thereof wherein R is H, —CH2CH(OH)CH2CH3, an alkyl group having from 1 to 6 carbon atoms, an aryl group having from 6 to 12 carbon atoms, an aralkyl group having from 6 to 12 carbon atoms, or a cycloalkyl group having from 3 to 6 carbon atoms in combination with a tertiary alkano/amine are effective in the removal of acidic gases from a fluid stream containing same and show superior degradation properties as compared to alkanolamines conventionally used in the gas purification applications.Type: GrantFiled: September 30, 1998Date of Patent: March 27, 2001Assignee: The Dow Chemical CompanyInventor: Peter C. Rooney
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Patent number: 6203722Abstract: A stabilized lime slurry for treatment of biological solids in sewage. The composition preferably includes 30-36% calcium hydroxide, 10-16% potassium hydroxide, 2-4% potassium chloride, 2-4% magnesium hydroxide, all on a dry basis, and the balance in water. This composition raises the pH rapidly for destroying pathogens, is sufficiently concentrated for economically feasible transportation, and reduces the cost, difficulties and dangers of treating sewage with a lime based composition while providing a resulting product from the sewage treatment process which can be spread upon agricultural soil in a manner which improves soil fertility without introducing undesirable or contaminating materials into the soil.Type: GrantFiled: October 2, 1998Date of Patent: March 20, 2001Assignee: New Eezy Gro, Inc.Inventor: Louis S. Hurst
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Patent number: 6165432Abstract: Aqueous compositions comprising a mixture of a tertiary alkanolamine and a primary alkanolamine of the formulaR--CH(NH.sub.2)--CH.sub.2 --OH (I)or mixtures thereof wherein R is H, or an alkyl group having from 1 to 8 are effective in the removal of acidic gases from a fluid stream containing same and show superior degradation properties as well as unexpectedly low degradation, corrosivity and metals solubility properties.Type: GrantFiled: September 30, 1998Date of Patent: December 26, 2000Assignee: The Dow Chemical CompanyInventor: Peter C. Rooney