And N Containing Patents (Class 585/4)
  • Patent number: 9957209
    Abstract: The present invention generally relates to compounds and methods for inhibiting the radical polymerization of unsaturated compounds, particularly vinyl monomers. More particularly, it relates to the use of cinnamyl quinone methides to inhibit the polymerization of unsaturated hydrocarbon compounds (e.g., vinyl monomers) soluble in organic solvents, particularly hydrocarbon streams.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: May 1, 2018
    Assignee: Ecolab USA Inc.
    Inventors: Jonathan Masere, Ramon Colorado, Jr.
  • Patent number: 9017429
    Abstract: Use in a gas oil fuel composition, which preferably comprises a Fischer-Tropsch derived fuel, of a compound according to formula (I): wherein: R1 to R4 are each independently hydrogen or a C1-10 alkyl group, where such alkyl groups may be the same as or different from one another; and X is a nitrogen- or oxygen-containing group, for the purpose of reducing the cetane number of said fuel composition; preparation of such a fuel composition; and operating a fuel consuming system.
    Type: Grant
    Filed: December 28, 2009
    Date of Patent: April 28, 2015
    Assignee: Shell Oil Company
    Inventors: Claire Griffiths, Richard Hugh Clark, Christopher William Clayton, Paul Anthony Stevenson, Robert Wilfred Matthews Wardle
  • Publication number: 20150111799
    Abstract: The present invention relates to the use of a chemical composition to modify the physical properties (viscosity and interfacial tension) of heavy and extra-heavy crude oils, to increase their mobility. The chemical composition comprises or consists of a combination of systems based on ionic and non-ionic liquids, which may be pure or modified, mixed in an aqueous or organic medium as a dispersing agent, depending on the nature of the crude to be treated, together with a surfactant. The composition is mixed with the crude oil at a temperature between 5 and 100° C., at pressures from 1 atm (14.7 psi) up to about 680.2 atm (10,000 psi). The composition can be mixed with heavy crude oils, at the point of extraction from the well in the field, during the transport of crude oil in pipelines, or in the well discharge pipelines.
    Type: Application
    Filed: October 22, 2014
    Publication date: April 23, 2015
    Inventors: Alma Delia MIRANDA OLVERA, Jose Manuel DOMINGUEZ ESQUIVEL, Ricardo GARCIA CHAVEZ, Miguel Angel VAZQUEZ GUEVARA
  • Publication number: 20150101240
    Abstract: Base compounds including 1,3-oxazinan-6-one derivatives of N-alkyl or N-alkenyl or N-cycloalkyl or N-aryl propionic acids and paraformaldehyde, and their application as corrosion inhibitors with multifunctional properties serving as inhibitory/dispersant of asphaltene in production processes, transportation, refining and storage of crude oil and derivatives. The corrosion inhibitor with inhibitory/dispersant of asphaltenes properties comprises an active substance base of 1,3-oxaninan-6-ones and hydrocarbon solvents such as benzene, toluene, mixed xylenes, o-xylene, m-xylene and p-xylene, diesel, kerosene, jet fuel, alcohols, aliphatic branched and unbranched alcohols containing from 3 to 10 carbon atoms, such as isopropanol, butanol and pentanol, and mixtures of hydrocarbon solvents with aliphatic branched or unbranched liquid fuels. In addition, a process for obtaining 1,3-oxazinan-6-ones derivatives of N-alkyl or N-alkenyl or N-cycloalkyl or N-aryl propionic acids and paraformaldehyde is described.
    Type: Application
    Filed: December 8, 2014
    Publication date: April 16, 2015
    Inventors: Raul Hernandez Altamirano, Violeta Yasmin Mena Cervantes, Luis Silvestre Zamudio Rivera, Hiram Isaac Beltran Conde, Eduardo Buenrostro Gonzalez
  • Publication number: 20150014062
    Abstract: The object of the present invention is a composition comprising amine compound and carboxylic acid compounds, wherein at least the amine compounds are alkoxylated, use thereof as a drilling fluid, and a method for using the drilling fluid
    Type: Application
    Filed: February 20, 2013
    Publication date: January 15, 2015
    Inventors: Heinz Napierala, Ludger Bosing
  • Publication number: 20140364661
    Abstract: A method of reducing the viscosity of a crude oil, the method comprising contacting the crude oil with a composition which comprises at least one poly(hydroxycarboxylic acid) amide salt derivative.
    Type: Application
    Filed: December 17, 2012
    Publication date: December 11, 2014
    Inventors: Zhongxin Huo, Timothy Michael Shea, Cornelis Antonius Antonius Kuijvenhoven, Ying Zhang
  • Publication number: 20140364660
    Abstract: The present invention relates to additive composition for controlling and inhibition of polymerization of aromatic vinyl monomers including styrene comprising (a) one or more of nitroxide (i.e. nitroxyl) compounds, and characterized in that the said composition further comprises one or more of (b) aliphatic amines selected from a group comprising tertiary amines, secondary amines and primary amines. In one embodiment, the present invention also relates to method of use of presently provided composition. In another embodiment, the present invention also relates to method of controlling and inhibiting polymerization of aromatic vinyl monomers including styrene by employing presently provided composition. In still another embodiment, the present invention also relates to method of preparation of presently provided composition.
    Type: Application
    Filed: November 21, 2012
    Publication date: December 11, 2014
    Applicant: DORF KETAL CHEMICALS (INDIA) PRIVATE LIMITED
    Inventor: Mahesh Subramaniyam
  • Patent number: 8901362
    Abstract: Methods and compositions are provided for inhibiting the polymerization of a vinyl aromatic monomer, such as styrene monomer, during elevated temperature processing or distillation thereof or during storage or shipment of polymer containing product. The compositions include a combination of a hydroxybenzyl alcohol (1) and a dehydration catalyst (2). The combination is added to a vinyl aromatic monomer. Typically, the hydroxybenzyl alcohol is dehydrated in the styrene solution by the use of a strong acid catalyst acting as the dehydration catalyst, and the resultant reaction product is a quinone methide styrene inhibitor.
    Type: Grant
    Filed: February 2, 2012
    Date of Patent: December 2, 2014
    Assignee: General Electric Company
    Inventor: John Link
  • Publication number: 20140350299
    Abstract: A method of inhibiting the deposition of asphaltene in a mixture comprising hydrocarbons, the method comprising contacting the mixture with a composition which comprises at least one poly(hydroxycarboxylic acid) amide salt derivative.
    Type: Application
    Filed: December 17, 2012
    Publication date: November 27, 2014
    Inventors: Zhongxin Huo, Timothy Michael Shea, Cornelis Antonius Theodorus Kuijvenhoven, Ying Zhang
  • Publication number: 20140343332
    Abstract: A composition for inhibiting corrosion of the upper part (or roof) of a pipeline for conveying wet hydrocarbons, i.e. hydrocarbons comprising a variable amount of water, comprises at least one Amine 1 with vapour pressure greater than or equal to 10 mmHg, and at least one Amine 2 with vapour pressure greater than or equal to 0.1 mmHg and less than 10 mmHg. The use of such a composition, and also to the method of inhibiting top-of-line corrosion employing the inhibitor composition is also disclosed.
    Type: Application
    Filed: September 11, 2012
    Publication date: November 20, 2014
    Applicant: CECA S.A.
    Inventors: Tong Eak Pou, Stéphane Boito
  • Publication number: 20140330054
    Abstract: A method for inhibiting the plugging of a conduit containing a flowable mixture comprising at least an amount of hydrocarbons capable of forming hydrates in the presence of water and an amount of water, which method comprises adding to the mixture an amount of a functionalized dendrimer effective to inhibit formation and/or accumulation of hydrates in the mixture at conduit temperatures and pressures; and flowing the mixture containing the functionalized dendrimer and any hydrates through the conduit wherein the functionalized dendrimer comprises at least one ammonium functional end group.
    Type: Application
    Filed: December 17, 2012
    Publication date: November 6, 2014
    Inventor: Ulfert Cornelis Klomp
  • Publication number: 20140288337
    Abstract: A process for inhibiting the polymerization of cyclopentadiene compounds (B) by contacting the cyclopentadiene compound with a quinone methide compound (A) of structure (I), Compositions (AB) comprising (A) and (B) are also provided.
    Type: Application
    Filed: March 18, 2014
    Publication date: September 25, 2014
    Applicant: Evonik Industries AG
    Inventors: Stefanie RINKER, Bettina Bressel, Manfred Neumann, Felix Nissen, Oliver Erpeldinger, Phillip R. James, Peter Watkins
  • Publication number: 20140243564
    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, particularly in the case where the liquid washing phase includes components that may undergo an aldol condensation, the products of which may cause fouling solids and/or sludges.
    Type: Application
    Filed: May 8, 2014
    Publication date: August 28, 2014
    Applicant: Baker Hughes Incorporated
    Inventors: Zhenning Gu, Joseph L. Stark, Roger D. Metzler
  • Publication number: 20140194559
    Abstract: The invention concerns a formulation and method which allow for the efficient delivery of antipolymerants of low solubility into processes for the production of ethylenically unsaturated monomers, and associated process streams, and which avoid the potential health and safety problems and economic disadvantages which are associated with the methods of the prior art and facilitate the safe and efficient production of these monomers. Specifically, the invention provides an antipolymerant composition for the prevention of unwanted polymerisation reactions during the production and processing of ethylenically unsaturated compounds, the composition comprising a concentrated liquid formulation, wherein said concentrated liquid formulation is a suspension concentrate which comprises: (a) at least one compound selected from the group comprising phenols, quinones, thiazines, hydroxylamines and aromatic amines; (b) at least one dispersing agent; and (c) at least one polar or non-polar liquid carrier.
    Type: Application
    Filed: August 20, 2012
    Publication date: July 10, 2014
    Applicant: NuFarm UK Limited
    Inventors: Peter Price, Guillaume Duchamp, Angela Jane Glossop, Andrew Nigel Fawbert, Stephanie Mary Dwyer
  • Patent number: 8766027
    Abstract: The present invention relates to additive composition for control and inhibition of polymerization of styrene, wherein the composition comprises amine and quinone methide, and wherein the amine is polymerization non-inhibitor amine. In one embodiment, the present invention relates to method of preparation and use of additive composition to control and inhibit polymerization of styrene, wherein the composition comprises amine and quinone methide, and wherein the amine is polymerization non-inhibitor amine. In another embodiment, the present invention relates to additive composition for control and inhibition of polymerization of styrene, wherein the composition comprises oxide treated derivative of amine and quinone methide, and wherein the amine is polymerization non-inhibitor amine, and to the method of preparation and use thereof.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: July 1, 2014
    Assignee: Dorf Ketal Chemicals (India) Private Limited
    Inventor: Mahesh Subramaniyam
  • Publication number: 20140121399
    Abstract: The polymerization of monomers may be at least partially reduced or inhibited by introducing an effective amount of an additive. The additive may be or include a first compound: where: R1 and R2 may be or include an alkyl group, an aryl group, an alkyl group having a heteroatom, an aryl group having a heteroatom, and combinations thereof. The hetero atom may be or include sulfur, nitrogen and/or oxygen. R1 may be the same or different from R2. The polymerizable monomers may be or include, but are not limited to styrene, butadiene, isoprene, acrylic acid, acrylonitrile, vinyl acetate, and combinations thereof.
    Type: Application
    Filed: October 25, 2012
    Publication date: May 1, 2014
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Hua Mo, Roger D. Metzler
  • Publication number: 20140039229
    Abstract: A drag reducing composition and method of use wherein the drag reducing composition comprises a polyolefin, drag reducing polymer, a carrier or suspending medium, and a polycarboxylate dispersion agent.
    Type: Application
    Filed: August 23, 2011
    Publication date: February 6, 2014
    Applicant: FlowChem, Ltd.
    Inventors: Brad A. Bucher, Tom M. Weatherford
  • Publication number: 20130277276
    Abstract: Provided herein, inter alia, are novel compositions and methods having application in the field of enhanced oil recovery. In particular, the quaternary ammonium compounds and mixtures thereof presented herein can be used, inter alia, for the recovery of a large range of crude oil compositions from challenging reservoirs.
    Type: Application
    Filed: April 19, 2013
    Publication date: October 24, 2013
    Applicant: Board of Regents, The University of Texas System
    Inventors: Upali P. Weerasooriya, Gary A. Pope, Kishore Mohanty
  • Publication number: 20130252856
    Abstract: A method for unloading fluids from an oil and gas well, pipeline or flowline includes using a synergistic combination of an alkyl glucoside and an amphoteric surfactant as a foaming composition. Use of the combination foaming composition improves unloading of formation fluids, particularly production fluids having natural gas condensate and water and therefore increases the rate of production from the oil and gas well.
    Type: Application
    Filed: April 29, 2013
    Publication date: September 26, 2013
    Applicant: Baker Hughes Incorporated
    Inventor: Jiang Yang
  • Patent number: 8535535
    Abstract: Hydrophobins for stabilizing phases in biphasic liquid systems.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: September 17, 2013
    Assignee: BASF SE
    Inventors: Marcus Guzmann, Peter Eck, Ulf Baus
  • Publication number: 20130211159
    Abstract: Method for degassing a storage tank for liquid products containing volatile organic compounds or VOC, in particular petroleum products, comprising a step a) of introducing an aqueous mixture comprising substances able to interact chemically and/or physically with the VOC in the gaseous state inside the tank, which is kept closed, so as to encourage them to pass from the gaseous phase to the liquid phase, and to remain in the liquid phase. Such introduction step being protracted so as to reduce the concentration of the VOC to a predetermined value functional to having an acceptable explosive limit.
    Type: Application
    Filed: May 18, 2010
    Publication date: August 15, 2013
    Applicant: IDRABEL ITALIA S.R.L.
    Inventor: Ivo Saverio Rancich
  • Publication number: 20130190543
    Abstract: A method is provided for treating a hydrocarbon containing formation. The method comprises providing a hydrocarbon recovery composition comprising a mixture of branched internal olefin sulfonate molecules, and contacting hydrocarbons in the hydrocarbon containing formation with the hydrocarbon recovery composition. The mixture of branched internal olefin sulfonate molecules has an average number of carbon atoms of between 19 and 23, and an average number of branches of at least 0.6 per molecule. A hydrocarbon composition produced from a hydrocarbon containing formation, and a hydrocarbon recovery composition comprising a mixture of branched internal olefin sulfonate molecules are also provided.
    Type: Application
    Filed: February 9, 2011
    Publication date: July 25, 2013
    Inventors: Julian Richard Barnes, Hendrik Dirkzwager, Quoc An On, Johan Paul Smit, Jasper Roelf Smit
  • Publication number: 20130165708
    Abstract: A method for suppressing isomerization of an olefin metathesis product produced in a metathesis reaction includes adding an isomerization suppression agent that includes nitric acid to a mixture that includes the olefin metathesis product and residual metathesis catalyst from the metathesis reaction under conditions that are sufficient to passivate at least a portion of the residual metathesis catalyst. Methods of refining a natural oil are described.
    Type: Application
    Filed: December 22, 2011
    Publication date: June 27, 2013
    Inventors: Bruce E. Firth, Sharon E. Kirk
  • Publication number: 20130158203
    Abstract: The invention generally relates to a method of inhibiting polymerization of vinyl aryl monomers, a process for increasing number average molecular weight of a polystyrene, and to an inhibitor composition useful therein.
    Type: Application
    Filed: July 27, 2011
    Publication date: June 20, 2013
    Applicants: CARNEGIE MELLON UNIVERSITY, DOW GLOBAL TECHNOLOGIES INC.
    Inventors: Nathan T. Kendall, Kishore K. Kar, Mark H. McAdon, Krzysztof Matyjaszewski, Laura Mueller, Charles D. Dukes
  • Publication number: 20130108870
    Abstract: Micronized polymers suitable for use in fuels and lubricants having a particle size distribution of less than 30 microns obtained from water-soluble solid organic polymers is provided. A water-soluble solid organic polymer having a number average molecular weight in the range of 1000 to 200,000 is subjected to a molecular segmentation in a polar solvent in a polymer to solvent ratio in the range of 1:1 to 1:10 to produce a micronized polymer having a particle size distribution of less than 30 microns.
    Type: Application
    Filed: October 29, 2012
    Publication date: May 2, 2013
    Applicant: SHELL OIL COMPANY
    Inventor: SHELL OIL COMPANY
  • Publication number: 20130098623
    Abstract: Copolymers containing acryloylmorpholine and vinylimidazole, and optionally vinylcaprolactam and/or n-vinyl pyrrolidone, have shown superior results in hydrate inhibition tests at conditions of 7° C. subcooling dosed at 1 vol % based on the water cut of the system fluids. The copolymer product has also passed high TDS (total dissolved solids) brine compatibility tests and secondary property tests including foaming and hot injection tests which make it useful as a kinetic hydrate inhibitor in gas production systems susceptible to the formation of natural gas hydrates.
    Type: Application
    Filed: October 10, 2012
    Publication date: April 25, 2013
    Applicant: Baker Hughes Incorporated
    Inventor: Baker Hughes Incorporated
  • Publication number: 20130072729
    Abstract: Methods and compositions are provided for inhibiting the polymerization of a vinyl aromatic monomer, such as styrene monomer, during elevated temperature processing or distillation thereof. The compositions comprise an inhibitor combination of (A) a hydroxylamine and (B) a stable free radical plus a retarder that is either; (C) dinitrobutylphenol or (D) quinone methide. The ratio of (A) to (B) ranges from about 5% (A) to 95% (B) to about 95% (A) to about 5% (B). The compositions are added to the vinyl aromatic monomer in amounts sufficient to prevent polymerization during the distillation process. Typically the inhibitor combination is added to the vinyl aromatic monomer in an amount ranging from about 10 to 150 ppm of the monomer. Retarders are typically added in an amount ranging from 50 to 1500 ppm of the vinyl aromatic monomer.
    Type: Application
    Filed: September 16, 2011
    Publication date: March 21, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: John Link, Mike Hong
  • Publication number: 20120311922
    Abstract: Provided are additives of formula I for use in hydrocarbonaceous compositions, such as petroleum or liquid fuels: wherein R1, R2, R3, R4, and R5 are as defined herein. The additives improve the corrosion resistance of the compositions and, when the composition is biodiesel, also improve microbial resistance. The additives further enhance the antimicrobial efficacy of any added biocides contained in such compositions.
    Type: Application
    Filed: August 8, 2012
    Publication date: December 13, 2012
    Inventors: Sheila M. Tinetti, John L. Pohlman, Patrick E. Brutto, Charles E. Coburn, George D. Green, Raymond J. Swedo
  • Publication number: 20120220807
    Abstract: An additive comprising, dissolved in a solvent, an asphaltene dispersant selected from the group consisting of ?-olefin/vinyl pyrrolidinone copolymers. The copolymer can comprise at least one ?-olefin selected from the group consisting of mono-?-olefins, at least one ?-olefin selected from the group consisting of linear ?-olefins and/or at least one ?-olefin is selected from the group consisting of 1-hexadecene, 1-octadecene, 1-eicosene, 1-docosene, 1-tetracosene, 1-hexacosene, 1-octacosene and 1-triacontene. The additive can comprise a copolymer of 2-pyrrolidinone, 1-ethenyl monomer. The copolymer can have a Hansen Solubility Parameter (HSP), ?, of greater than 16, 17 or 18 MPa1/2. The solvent can be selected from the group consisting of aromatic solvents, such as 1-methyl naphthalene, bis-(m-phenoxyphenyl)ether, o-xylene, toluene and heavy aromatic solvents.
    Type: Application
    Filed: August 29, 2011
    Publication date: August 30, 2012
    Applicant: SHRIEVE CHEMICAL PRODUCTS, INC.
    Inventor: Richard F. Miller
  • Publication number: 20120219714
    Abstract: Disclosed are stabilized bicyclo[2.2.1]hepta-2,5-diene compositions and methods of making and using the same.
    Type: Application
    Filed: October 27, 2010
    Publication date: August 30, 2012
    Applicants: L'Air Liquide, Societe Anonyme pour I'Etude et I'Exploitation des Procedes Georges Claude, American Air Liquide, Inc.
    Inventors: James J.F. McAndrew, Jean-Marc Girard, Yves Marot, Daniel André Gobard
  • Publication number: 20120203020
    Abstract: The invention provides a composition and a method of using the composition for inhibiting the unwanted polymerization of ethylenically unsaturated monomers. The composition is prepared by reducing a nitroxide stable free radical to its corresponding hydroxylamine through reaction with a dialkyl/aryl hydroxylamine and subsequent addition of a polymerization prevention component selected from phenolic antioxidants, phenylenediamine and phenylenediamine derivatives, or phenothiazine and phenothiazine derivatives targeted towards ethylenically unsaturated monomers. The conversion of the nitroxide by the dialkyl/aryl hydroxylamine is to prevent it or the polymerization prevention component from being “spent” by reaction with each other, impurities or any other incompatible components. This allows previously incompatible combinations to now work effectively. In fact, the combination is more efficacious as the combination exerts a synergy due to the presence of various polymerization prevention reagents.
    Type: Application
    Filed: February 3, 2011
    Publication date: August 9, 2012
    Inventor: David Youdong Tong
  • Publication number: 20120190893
    Abstract: New tertiary amine salts are useful as gas hydrate inhibitors in oil and gas production and transportation. These tertiary amine salts give very good separation from an emulsion, are economic and have reduced toxicity concerns.
    Type: Application
    Filed: January 24, 2011
    Publication date: July 26, 2012
    Applicant: Baker Hughes Incorporated
    Inventors: Jun Tian, Cheryl R. Bailey
  • Publication number: 20120088942
    Abstract: The invention relates to compounds of formula (1) in which A represents a C2 to C4 alkylene group; x represents a number from 1 to 100; R? represents an aliphatic, cycloaliphatic or aromatic radical that contains at least one structural unit of formula 2, and; y represents a number from 1 to 100. The invention also relates to the use of these compounds in quantities of 0.01 to 2% by weight for preventing the formation of gas hydrates in aqueous phases that are connected to a gaseous, liquid or solid organic phase.
    Type: Application
    Filed: December 16, 2011
    Publication date: April 12, 2012
    Applicant: CLARIANT PRODUKTE (DEUTSCHLAND) GMBH
    Inventors: Michael FEUSTEL, Dirk LEINWEBER
  • Publication number: 20120078021
    Abstract: A method of inhibiting gas hydrate formation in petroleum and natural gas production systems through the use of low dosage hydrate inhibitors which include reaction products of non-halide-containing inorganic acids, organic acids, and organic amines. The use of these non-halide-containing reaction products rather than chloride containing acids or alkylating agents avoids corrosion and stress cracking caused by residual inorganic chloride and other inorganic, halide-containing acids. The anti-agglomerate compositions can be administered continuously to effectively inhibit gas hydrate formation. In preferred embodiments, the anti-agglomerate compositions are mixtures of reaction products of non-halide-containing organic acids and organic amines.
    Type: Application
    Filed: September 26, 2011
    Publication date: March 29, 2012
    Applicant: MULTI-CHEM GROUP, LLC
    Inventors: Danny Durham, Curtis Conkle, James Russum
  • Patent number: 8128804
    Abstract: An olefinically unsaturated monomer is stabilized by a retarder-containing composition which comprises a solvent and a quinone methide as a retarder.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: March 6, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Stefanie Weyler, Phillip James, Oliver Erpeldinger, Manfred Neumann, Frank Kraushaar
  • Patent number: 8097584
    Abstract: The present invention relates to a pharmaceutical formulation comprising insulin, an insulin analogue or an insulin derivate and ethylenediamine or salts thereof and an antimicrobial preservative agent.
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: January 17, 2012
    Assignee: Novo Nordisk A/S
    Inventor: Christian Poulsen
  • Publication number: 20110296746
    Abstract: N-alkyl, N-alkenyl, N-cycloalkyl, N-aryl amino or imino propionic acids with an alkyl chain ranging from 6 to 18 carbons, or alkenyl chain from 8 to 30 carbons, are obtained from a reaction process in the absence of solvent at a temperature range from 30 to 180° C. and a time of 1 to 10 hours at atmospheric pressure. Formulations composed of N-alkyl or N-alkenyl or N-cycloalkyl or N-aryl amino or imino propionic acids, polyethers derived from propylene oxide or ethylene oxide or copolymer thereof and a solvent consisting of aromatic compounds such as toluene or xylene, diesel or gasoline or alcohols such as isopropanol and ethanol, or mixtures thereof, are obtained inhibit ferrous metal corrosion of pipelines and storage tanks and transport crude oil and liquid fuels. A method inhibiting corrosion of ferrous metals adds an effective amount of the corrosion inhibitor to a petroleum based material such as crude oil and liquid fuels such as gasoline, diesel fuel, and aviation fuel.
    Type: Application
    Filed: June 2, 2011
    Publication date: December 8, 2011
    Applicant: INSTITUTO MEXICANO DEL PETROLEO
    Inventors: Raúl Hernández Altamirano, Luis Silvestre Zamudio Rivera, Violeta Yasmín Mena Cervantes, Hiram Isaac Beltrán Conde, Marco Antonio Domínguez Aguilar, Jaquelin Martínez Viramontes, Aristeo Estrada Buendía
  • Publication number: 20110113680
    Abstract: Hydrogen sulfide and mercaptans in hydrocarbons, gas mixtures of hydrocarbons and the like may be scavenged therefrom by being brought into intimate contact with a mercaptan scavenger formulation of quaternary ammonium alkoxide or hydroxide in the presence of a high oxidative state metal such as cobalt, iron, chromium and/or nickel. The high oxidative state metal, being an oxidizer, acts as a catalyst when combined with the quaternary ethoxide or hydroxide for improved mercaptan scavenging performance.
    Type: Application
    Filed: November 22, 2010
    Publication date: May 19, 2011
    Applicant: Baker Hughes Incorporated
    Inventors: Timothy J. O'Brien, Jerry J. Weers
  • Publication number: 20100143580
    Abstract: Disclosed are stabilized bicyclo[2.2.1]hepta-2,5-diene compositions and methods of making and using the same.
    Type: Application
    Filed: November 5, 2009
    Publication date: June 10, 2010
    Applicants: American Air Liquide, Inc., L'Air Liquide Societe Anonyme pour l'Etude et I'Exploitation des Procedes Georges Claude
    Inventors: James J.F. MCANDREW, Jean-Marc Girard, Yves Marot, Daniel André Gobard
  • Patent number: 7651635
    Abstract: The invention provides a composition of matter and a method of its use in preventing unwanted polymerization reactions. The composition comprises an inhibitor and a retarder. The inhibitor is highly effective. The retarder is reliable under extreme and emergency situations. The inhibitor can be an alkylhydroxylamine. The retarder can be a 7-cyano-quinone methide. The combination of the inhibitor and retarder has been found to be far more effective than expected.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: January 26, 2010
    Assignee: Nalco Company
    Inventor: Vincent E. Lewis
  • Patent number: 7473795
    Abstract: Disclosed herein is a method for inhibiting the premature polymerization of ethylenically unsaturated monomers comprising adding to said monomers an effective amount of: A) at least one nitroxyl compound, and B) at least one quinone alkide compound having an electron-withdrawing group at the 7-position. Additionally, a composition is disclosed that comprises: A) at least one nitroxyl compound, and B) at least one quinone alkide compound having an electron-withdrawing group at the 7-position.
    Type: Grant
    Filed: March 7, 2006
    Date of Patent: January 6, 2009
    Assignee: Uniroyal Chemical Company, Inc.
    Inventor: Brigitte Benage
  • Patent number: 7371906
    Abstract: A process for improving the stability to photo-oxidation of a polycyclic aromatic compound having at least two polymorphic forms comprises treating a first polymorph with one or more solvents to obtain the more stable second polymorph and then separating the second polymorph from the solvent.
    Type: Grant
    Filed: August 24, 2004
    Date of Patent: May 13, 2008
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, William F. Nichols, Manju Rajeswaran, Natasha Andrievsky, Michael R. Landry
  • Publication number: 20070208204
    Abstract: A polymerization inhibitor for stabilizing olefinically unsaturated monomers containing at least one compound of formula (1) and/or (2) according to the invention. Stabilized monomer compositions.
    Type: Application
    Filed: February 5, 2007
    Publication date: September 6, 2007
    Applicant: DEGUSSA GmbH
    Inventors: Oliver Meyer, Phillip James, Oliver Erpeldinger, Frank Kraushaar
  • Patent number: 7205438
    Abstract: A diene production stream comprising a solvent recovery blend from diene production comprising one or more fouling agent, one or more extractive distillation solvent, and from about 1 ppm to about 1000 ppm of N,N-disubstituted amide.
    Type: Grant
    Filed: March 9, 2005
    Date of Patent: April 17, 2007
    Assignee: Baker Hughes Incorporated
    Inventor: Marilyn Wood Blaschke
  • Patent number: 7182839
    Abstract: Methods and compositions effective to prevent deposition of fouling agents, preferably polymerization precursors, on handling equipment, particularly during solvent recovery.
    Type: Grant
    Filed: August 6, 2001
    Date of Patent: February 27, 2007
    Assignee: Baker Hughes Incorporated
    Inventor: Marilyn Wood Blaschke
  • Patent number: 7157611
    Abstract: A method for marking a liquid petroleum hydrocarbon. The method comprises adding to the liquid petroleum hydrocarbon a pyrazinoporphyrazine dye having an absorption maximum from 700 nm to 900 nm.
    Type: Grant
    Filed: June 19, 2003
    Date of Patent: January 2, 2007
    Assignee: Rohm and Haas Company
    Inventors: Rajiv Manohar Banavali, Kim Sang Ho
  • Patent number: 7125475
    Abstract: Inhibitor blends that include both nitrosophenols and nitrosoanilines, optionally in combination with air or oxygen, reduce the premature polymerization of ethylenically unsaturated monomers. unsaturated monomers.
    Type: Grant
    Filed: January 29, 2003
    Date of Patent: October 24, 2006
    Assignee: Crompton Corporation
    Inventor: Brigitte Benage
  • Patent number: 7045647
    Abstract: Disclosed herein is a method for inhibiting the premature polymerization of ethylenically unsaturated monomers comprising adding to said monomers an effective amount of: A) at least one nitroxyl compound, and B) at least one quinone alkide compound having an electron-withdrawing group at the 7-position. Additionally, a composition is disclosed that comprises: A) at least one nitroxyl compound, and B) at least one quinone alkide compound having an electron-withdrawing group at the 7-position.
    Type: Grant
    Filed: October 2, 2001
    Date of Patent: May 16, 2006
    Assignee: Uniroyal Chemical Company, Inc.
    Inventor: Brigitte Benage
  • Patent number: 6841061
    Abstract: An Anti-gelling agent for a hydrocarbon mixture containing a conjugated diene, which comprises (a) at least one compound selected from the group consisting of compounds having an NO radical in the molecule, and precursor compounds capable of forming an NO radical, (b) a phosphorus-containing compound, and (c) at least one compound selected from the group consisting of heterocyclic aldehydes, aromatic aldehydes and condensates of these aldehydes. Clogging in an apparatus for separating and refining a hydrocarbon mixture containing a conjugated diene can be prevented by adding the anti-gelling agent in the apparatus.
    Type: Grant
    Filed: April 7, 2000
    Date of Patent: January 11, 2005
    Assignee: Zeon Corporation
    Inventor: Keizo Ukita
  • Patent number: 6835288
    Abstract: A process for preventing undesired polymerization is conducted by maintaining an effective concentration of a stabilizer which comprises N-oxyl radicals in a mixture containing ethylenically unsaturated compounds, wherein (i) an electronic signal which correlates with the concentration of the N-oxyl radicals in the mixture is obtained periodically or continuously, (ii) the electronic signal is compared with a reference value, and (iii) addition of a stabilizer to the mixture is controlled according to the comparison (ii). The signal is preferably obtained by ESR measurement. The process permits efficient use of the stabilizer.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: December 28, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Heinz Friedrich Sutoris, Konrad Mitulla