Metal-containing Patents (Class 585/855)
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Patent number: 9006130Abstract: The invention relates to a hydrodesulfurization nanocatalyst, use of the hydrodesulfurization nanocatalyst in a hydrodesulfurization process and a process for producing the hydrodesulfurization nanocatalyst. The hydrodesulfurization nanocatalyst can include a nanostructured alumina material, at least one metal selected from group VI B of the periodic table of elements, and at least one metal selected from group VIII B of the periodic table of elements.Type: GrantFiled: October 4, 2011Date of Patent: April 14, 2015Assignee: Research Institute of Petroleum Industry (RIPI)Inventors: Fereshteh Rashidi, Alimorad Rashidi, Kheirollah Jafari Jozani, Ali Nemati Kharat Ghaziani, Morteza Rezapour, Hamidreza Bozorgzadeh
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Publication number: 20150045600Abstract: The present invention relates to the processing of hydrocarbon-containing feedstreams in the presence of an interstitial metal hydride comprised of at least one chemical element selected from Groups 3-11 (including the lanthanides, atomic numbers 58 to 71), and at least one chemical element selected from Groups 13-15 from the IUPAC Periodic Table of Elements. These interstitial metal hydrides, their catalysts and processes using these interstitial metal hydrides and catalysts of the present invention improve overall hydrogenation, product conversion, as well as sulfur reduction in hydrocarbon feedstreams.Type: ApplicationFiled: October 28, 2014Publication date: February 12, 2015Applicant: ExxonMobil Research and Engineering CompanyInventors: Pallassana S. Venkataraman, Gordon F. Stuntz, Jonathan Martin McConnachie, Faiz Pourarian
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Publication number: 20150025258Abstract: The concentration of hydrogen sulfide in a hydrocarbon can be mitigated by intruding therein a zinc carboxylate oxo complex composition prepared by reacting particulate zinc oxide with a mixture of two or more carboxylic acids wherein the zinc carboxylate oxo complex composition is soluble in hydrocarbons. Useful acids useful include acetic acid, oleic acid, isobutyric acid, lineoleic acid, cekanoic acid, and neodecanoic acid.Type: ApplicationFiled: July 19, 2013Publication date: January 22, 2015Applicant: BAKER HUGHES INCORPORATIONInventor: Ross Poland
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Patent number: 8785711Abstract: There are provided an ionic liquid having ether group(s) in which a copper(I) compound is included, a method for preparing the same, and a method for removing traces amounts of acetylene-based hydrocarbon compounds included in olefin by absorption or extraction using the same. When the disclosed solution is used, oxidation of Cu(I) to Cu(II) is prevented since CuX is stabilized by the ionic liquid. Thus, selective removal efficiency of acetylenic compounds is improved greatly while the removal performance is retained for a long period of time. Further, since the solution according to the present disclosure is applicable as an extractant as well as an absorbent, the associated operation is simple and apparatus cost can be decreased.Type: GrantFiled: December 16, 2010Date of Patent: July 22, 2014Assignee: Kolon Industries, Inc.Inventors: Hyun Joo Lee, Byoung Sung Ahn, Hoon Sik Kim, Jin-Hyung Kim, Gyeong Taek Gong
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Publication number: 20130053610Abstract: A process for the production of para-xylene by simulated counter-current adsorption with high flexibility with respect to a reference run (100%) uses 2 adsorbers each with 12 beds, said adsorbers being able to be connected in accordance with 3 different modes; the flexibility obtained is 50% to 150%.Type: ApplicationFiled: August 24, 2012Publication date: February 28, 2013Applicant: IFP ENERGIES NOUVELLESInventors: Damien LEINEKUGEL LE COCQ, Philibert Leflaive, Luc Wolff, Gerard Hotier
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Publication number: 20120116145Abstract: A method of producing a crude product from a hydrocarbon feed is provided. A hydrocarbon feed is contacted with a catalyst containing a Col. 6-10 metal or compound thereof to produce the crude product, where the catalyst has a pore size distribution with a median pore diameter ranging from 105 ? to 150 ?, with 60% of the total number of pores in the pore size distribution having a pore diameter within 60 ? of the median pore diameter, with at least 50% of its pore volume in pores having a pore diameter of at most 600 ?, and between 5% and 25% of its pore volume in pores having a pore diameter between 1000 ? and 5000 ?.Type: ApplicationFiled: January 11, 2012Publication date: May 10, 2012Applicant: SHELL OIL COMPANYInventors: Opinder Kishan BHAN, Scott Lee WELLINGTON
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Publication number: 20120083643Abstract: The invention relates to a hydrodesulfurization nanocatalyst, use of the hydrodesulfurization nanocatalyst in a hydrodesulfurization process and a process for producing the hydrodesulfurization nanocatalyst. The hydrodesulfurization nanocatalyst can include a nanostructured alumina material, at least one metal selected from group VI B of the periodic table of elements, and at least one metal selected from group VIII B of the periodic table of elements.Type: ApplicationFiled: October 4, 2011Publication date: April 5, 2012Applicant: RESEARCH INSTITUTE OF PETROLEUM INDUSTRY (RIPI)Inventors: Fereshteh Rashidi, Alimorad Rashidi, Kheirollah Jafari Jozani, Ali Nemati Kharat Ghaziani, Morteza Rezapour, Hamidreza Bozorgzadeh
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Publication number: 20120083642Abstract: There are provided an ionic liquid having ether group(s) in which a copper(I) compound is included, a method for preparing the same, and a method for removing traces amounts of acetylene-based hydrocarbon compounds included in olefin by absorption or extraction using the same. When the disclosed solution is used, oxidation of Cu(I) to Cu(II) is prevented since CuX is stabilized by the ionic liquid. Thus, selective removal efficiency of acetylenic compounds is improved greatly while the removal performance is retained for a long period of time. Further, since the solution according to the present disclosure is applicable as an extractant as well as an absorbent, the associated operation is simple and apparatus cost can be decreased.Type: ApplicationFiled: December 16, 2010Publication date: April 5, 2012Inventors: Hyun Joo Lee, Byoung Sung Ahn, Hoon Sik Kim, Jin-Hyung Kim, Gyeong Taek Gong
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Publication number: 20110213191Abstract: The present invention is directed to compositions and methods for the recovery of olefins from a mixture. The compositions of the present invention comprise: (1) a transition metal ion; (2) a counter anion; (3) a ligand selected from the group consisting of a bidentate ligand and a tridentate ligand, wherein the ligand comprises at least two nitrogen atoms, and wherein each of the nitrogen atoms comprises a lone pair of electrons; and (4) a polar solvent with a boiling point of at least about 200° C. The methods of the present invention comprise: (1) providing the aforementioned compositions; (2) bonding at least a portion of the olefins in a mixture to the transition metal ion in the composition to form a complex; (3) separating the complex from the mixture; and (4) recovering the olefins from the complex.Type: ApplicationFiled: June 8, 2009Publication date: September 1, 2011Applicant: Trans Ionics CorporationInventors: Robert C. Schucker, Michael F. Lynch
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Publication number: 20110190519Abstract: A new purification technique for alkylene oxides is described. The technique is safer than previously reported methods and does not require cooling of the purification vessel. In a solution of a high-boiling point solvent and butyllithium, an alkylene oxide is added and allowed to react at ambient temperature. The impurities readily react with the butyllithium while the alkylene oxide does not. The low-boiling alkylene oxide is then easily distilled out of the high-boiling point solvent as a pure material ready for use in controlled polymerization reactions.Type: ApplicationFiled: April 9, 2010Publication date: August 4, 2011Applicant: SEEO, INCInventor: Hany Eitouni
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Patent number: 7955498Abstract: A method for reducing halide concentration in a hydrocarbon product having an organic halide content which is made by a hydrocarbon conversion process using a halogen-containing acidic ionic liquid catalyst comprising contacting at least a portion of the hydrocarbon product with an aqueous caustic solution under conditions to reduce the halide concentration in the hydrocarbon product is disclosed.Type: GrantFiled: December 16, 2008Date of Patent: June 7, 2011Assignee: Chevron, U.S.A. Inc.Inventors: Michael S. Driver, Saleh A. Elomari, Hye-Kyung C. Timken
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Publication number: 20100228061Abstract: The invention relates to a catalyst for the removal of detrimental halogenated and non-halogenated hydrocarbons in different effluent or process gases. The invention also relates to a method for the manufacture and use of such a catalyst. The catalyst of the invention includes a porous support material, on the surface of which there are one or several noble metals, V, and one or several 1. additives chosen from the group of Cr, Mn, Fe, Co and Ni.Type: ApplicationFiled: July 22, 2008Publication date: September 9, 2010Applicant: ECOCAT OYInventors: Matti Harkonen, Teuvo Maunula, Jukka Saartoala
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Patent number: 7772336Abstract: An object of the present invention is to provide highly pure ?-methylstyrene by efficiently removing polar substances present in the ?-methylstyrene. The present invention discloses a method for purifying ?-methylstyrene by reacting polar substances contained in the ?-methylstyrene in the presence of a basic substance, and separating a reaction product of the polar substance and the ?-methylstyrene.Type: GrantFiled: April 16, 2007Date of Patent: August 10, 2010Assignee: Asahi Kasei Chemicals CorporationInventors: Yuji Okada, Kenji Ebara
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Publication number: 20090299121Abstract: ITQ-26 (INSTITUTO DE TECNOLOGIA QUIMICA number 26) is a new crystalline microporous material with a framework of tetrahedral atoms connected by atoms capable of bridging the tetrahedral atoms, the tetrahedral atom framework being defined by the interconnections between the tetrahedrally coordinated atoms in its framework. ITQ-26 can be prepared in silicate compositions with an organic structure directing agent. It has a unique X-ray diffraction pattern, which identifies it as a new material. ITQ-26 is stable to calcination in air, absorbs hydrocarbons, and is catalytically active for hydrocarbon conversion.Type: ApplicationFiled: December 15, 2006Publication date: December 3, 2009Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Avelino Corma, Maria Jose Diaz, Fernado Rey, Karl G. Strohmaier, Douglas L. Dorset
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Publication number: 20090220620Abstract: A functional fluid for the removal of contaminates such as but not limited to, acid causing components in gas, sulfur components and carbon oxides from fluid streams, and removal and treatment of NOX & SOX from post combustion emissions. Also described is the manufacturing process to produce the functional fluid both in a batch atmospheric process system as well as a closed system capable of operating at above or below atmospheric conditions.Type: ApplicationFiled: November 7, 2006Publication date: September 3, 2009Applicant: Specialist Process Technologies LimitedInventors: Theodore E. Dickinson, David J. Parkinson, Kevin E. Collier
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Patent number: 7399891Abstract: This invention relates to a process for the production of an alcohol, the process comprising (a) reacting an olefin and water in the presence of a catalyst under conditions sufficient to form a crude alcohol stream comprising alcohol, and a dialkyl ether; (b) separating at least a portion of the crude alcohol stream into an alcohol-containing stream and a dialkyl ether stream; (c) contacting at least a portion of the dialkyl ether stream with an ether decomposition catalyst, the ether decomposition catalyst comprising a mixed metal oxide having the following composition XmYnZpOq where X is at least one metal selected from Group 4 of the Periodic Table of Elements, Y is at least one metal selected from Group 3 (including the Lanthanides and Actinides) and Group 6 of the Periodic Table of Elements and Z is at least one metal selected from Groups 7, 8, and 11 of the Periodic Table of Elements; m, n, p, and q are the atomic ratios of their respective components and, when m is 1, n is from about 0.01 to about 0.Type: GrantFiled: June 8, 2005Date of Patent: July 15, 2008Assignee: ExxonMobil Chemical Patents Inc.Inventors: Charles M Yarbrough, Brian William Roberts, Dennis Jay Davoren, Kenneth Joseph Buturla, Carl Stotz Katzenstein, Doron Levin, Hans Georg Korsten, Vijay Swarup
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Patent number: 7357902Abstract: Process for the removal of oxygen from a gas mixture comprising oxygen, at least one olefin, hydrogen, carbon monoxide and optionally at least one alkyne, the ratio of oxygen:hydrogen in the gas mixture being 1 part by volume of oxygen to at least 5 parts by volume of hydrogen. The process comprises contacting the gas mixture with a catalyst in a reaction zone under conditions sufficient to oxidise at least a portion of the hydrogen and to oxidize at least a portion of the carbon monoxide and without significant hydrogenation of the at least one olefin. The catalyst comprises at least one metal or oxide of a metal from the 10th group of the Periodic Table of Elements, the metal or oxide of the metal being supported on an oxide support, provided that the catalyst also comprises tin.Type: GrantFiled: September 23, 2003Date of Patent: April 15, 2008Assignee: Ineos Europe LimitedInventors: Matthew Hague, Ian Raymond Little, Warren John Smith
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Publication number: 20040192995Abstract: A process for recovery of sulfur from sour/natural gas stream containing H2S is described. It involves contacting the stream with an aqueous solution of biodegradable water soluble carboxylic acid metal chelate. This carboxylic acid metal chelate contains an oxidizing polyvalent metal e.g. Fe (III) and one of the acid from gluconic acid, malic acid, citric acid, succinic acid, oxalic acid. The hydrogen sulfide gas is reduced to hydrogen and elemental sulfur, which is recovered as precipitate. The iron in the metal chelate is reduced in the process and can be regenerated by oxidation.Type: ApplicationFiled: March 25, 2003Publication date: September 30, 2004Applicant: COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCHInventors: Aniruddha Subhash Deshpande, Narendra Vasant Sankpal, Bhaskar Dattatraya Kulkarni
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Patent number: 6797846Abstract: A crystal substance formed by precipitating as fibrous aggregates by making a metal aliphatic carboxylate dissolve completely in pure water, stirring, and gradually cooling the resulting solution. A method of preparing the fibrous crystal aggregates. A material for recovering flowing oil and method of recovering flowing oil by using the fibrous crystal aggregates. A material for solidifying liquid hydrocarbon, waste tempura oil and edible oil and method of solidifying liquid hydrocarbon, waste tempura oil and edible oil by using the fibrous crystal aggregates. A method of preparing the solidifying material.Type: GrantFiled: March 11, 2002Date of Patent: September 28, 2004Assignees: National Institute of Advanced Industrial Science and Technology, Okamura Oil, Mill, Ltd.Inventors: Hiroshi Sakaguchi, Yoshishige Kida, Seizi Iseki
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Methods of solidifying low-boiling-point hydrocarbon and handling the same, and regeneration thereof
Patent number: 6570045Abstract: Disclosed are a method of solidifying a low-boiling-point hydrocarbon, wherein the low-boiling-point hydrocarbon (including hydrocarbons which are gaseous at ordinary temperature) is brought into contact with a metal salt of an aliphatic carboxylic acid, and if necessary a high-boiling-point hydrocarbon, suspended in water, to form a solid aggregate substance, a method of handling the low-boiling-point hydrocarbon, wherein the solid aggregate substance is stored or transported, and a method of regenerating the low-boiling-point hydrocarbon, wherein the solid aggregate substance is decomposed by opening or heating, to obtain the low-boiling-point hydrocarbon. According to the methods, a wide variety of gaseous and highly volatile liquid hydrocarbons can be safely and easily solidified without using harmful reagent, and during storage, transportation, etc., the gaseous hydrocarbons and highly volatile liquids can be handled as a solid material.Type: GrantFiled: May 13, 2002Date of Patent: May 27, 2003Assignee: Agency of Industrial Science and TechnologyInventors: Hiroshi Sakaguchi, Tomokazu Yoshimura, Rumiana Tzoneva, Takashi Masuda, Takahiro Sato, Akio Matsuda -
Methods of solidifying low-boiling-point hydrocarbon and handling the same, and regeneration thereof
Patent number: 6417415Abstract: Disclosed are a method of solidifying a low-boiling-point hydrocarbon, wherein the low-boiling-point hydrocarbon (including hydrocarbons which are gaseous at ordinary temperature) is brought into contact with a metal salt of an aliphatic carboxylic acid, and if necessary a high-boiling-point hydrocarbon, suspended in water, to form a solid aggregate substance, a method of handling the low-boiling-point hydrocarbon, wherein the solid aggregate substance is stored or transported, and a method of regenerating the low-boiling-point hydrocarbon, wherein the solid aggregate substance is decomposed by opening or heating, to obtain the low-boiling-point hydrocarbon. According to the methods, a wide variety of gaseous and highly volatile liquid hydrocarbons can be safely and easily solidified without using harmful reagent, and during storage, transportation, etc., the gaseous hydrocarbons and highly volatile liquids can be handled as a solid material.Type: GrantFiled: March 31, 2000Date of Patent: July 9, 2002Assignee: Agency of Industrial Science and TechnologyInventors: Hiroshi Sakaguchi, Tomokazu Yoshimura, Rumiana Tzoneva, Takashi Masuda, Takahiro Sato, Akio Matsuda -
Patent number: 5866749Abstract: Sulfur and mercaptans in reactive hydrocarbon streams are removed by contacting the hydrocarbons at mild temperatures with a hydrogen reduced metal oxide such as a hydrogen reduced copper, zinc and/or aluminum oxide.Type: GrantFiled: January 22, 1997Date of Patent: February 2, 1999Assignee: Exxon Chemical Patents Inc.Inventor: Di-Yi (John) Ou
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Patent number: 5744685Abstract: A process is disclosed for the separation and recovery of an unsaturated hydrocarbon from its mixture with at least one other material by the selective and reversible complexation of the unsaturated hydrocarbon using a single cubane-type cluster of palladium, molybdenum and sulfur as a complexation agent.Type: GrantFiled: October 15, 1996Date of Patent: April 28, 1998Assignee: Amoco CorporationInventors: Robert B. Wilson, Jr., Karen Meyer, Marianna F. Asaro
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Patent number: 5674379Abstract: The present invention relates to a process for removing carbonyl sulfide from a liquid hydrocarbon feedstock, said process comprising the steps of (a) passing said hydrocarbon feedstock over an absorbent material comprising nickel deposited on a support material wherein nickel is present as both nickel oxide and metallic nickel and wherein the absorbent material has been conditioned by passing an inert gas flow containing a minor amount of propylene; and (b) recovering a liquid hydrocarbon stream having substantially reduced carbonyl sulfide content.Type: GrantFiled: June 7, 1995Date of Patent: October 7, 1997Assignee: Fina Research, S.A.Inventors: Guy L. G. Debras, Georges E. M. J. De Clippeleir, Raymond M. Cahen
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Patent number: 5639934Abstract: A process for the desulfurization of a sulfur-containing composition is described. The process comprises providing a sulfur-containing composition, adding an aqueous medium and a sulfur absorbent to the composition, and subjecting the resultant mixture to hydrothermal reaction under specific conditions to obtain a desulfurized product. When the sulfur-containing composition is made of vulcanized rubbers, the rubber can be converted into oily substances by treating the rubber product under supercritical conditions using an aqueous medium. The conversion reaction is facilitated by addition of metal oxides or salts.Type: GrantFiled: November 28, 1995Date of Patent: June 17, 1997Assignees: Nakamichi Yamasaki, Nishikawa Rubber Co., Ltd.Inventors: Nakamichi Yamasaki, Kenji Tsuda, Hiroyuki Okuda, Toshinari Tenno
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Patent number: 5625116Abstract: The carbon monoxide contained in .alpha.-olefins and saturated hydrocarbons, in particular .alpha.-olefins and C.sub.2-4 saturated hydrocarbons, is removed, by contacting such .alpha.-olefins and saturated hydrocarbons, at a temperature ranging from 0.degree. to 150.degree. C., with a catalyst system comprising a mixture and/or the reaction product of:A) one or more oxides of metals selected from the group consisting of Cu, Fe, Ni, Co, Pt, Pd; andB) one or more oxides of metals selected from the group consisting of metals of groups V B, VI B, or VII B of the Periodic Table;thus reducing the content of carbon monoxide to values lower than 0.03 ppm.Type: GrantFiled: June 1, 1995Date of Patent: April 29, 1997Assignee: Montell North America Inc.Inventors: Roberto Flammini, Giovanni Patroncini
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Patent number: 5510551Abstract: A carotenoid-enriched fraction is extracted from natural sources, such as carrots, by (i) separating the carotenoid-containing natural source into a carotenoid-containing liquid fraction and a pulp fraction, (ii) adding a carotenoid precipitation agent including calcium chloride, calcium hydroxide, calcium lactate or calcium gluconate to the liquid fraction to form a carotenoid-enriched solid precipitate, and (iii) separating the carotenoid-enriched solid precipitate from the carotenoid-depleted liquid portion.Type: GrantFiled: April 28, 1994Date of Patent: April 23, 1996Assignee: Humanetics CorporationInventors: Frederic A. Graves, Daniel D. Gallaher
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Patent number: 5470456Abstract: The present invention relates to a process for removing carbonyl sulfide from a liquid hydrocarbon feedstock, said process comprising the steps of (a) passing said hydrocarbon feedstock over an absorbent material comprising nickel deposited on a support material wherein nickel is present as both nickel oxide and metallic nickel and wherein the absorbent material has been conditioned by passing an inert gas flow containing a minor amount of propylene; and (b) recovering a liquid hydrocarbon stream having substantially reduced carbonyl sulfide content.Type: GrantFiled: June 1, 1993Date of Patent: November 28, 1995Assignee: Fina Research, S.A.Inventors: Guy L. G. Debras, Georges E. M. J. De Clippeleir, Raymond M. Cahen
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Patent number: 5463168Abstract: A process is described wherein the HCN in FCC hydrocarbon gas streams is converted to NH.sub.3 over a catalyst. This conversion has the desirable result of decreasing the amount of CN.sup.- in the water leaving the sour-water stripper, and ultimately in the refinery water effluent.Type: GrantFiled: August 17, 1994Date of Patent: October 31, 1995Assignee: Mobil Oil CorporationInventors: Costandi A. Audeh, David S. Shihabi, Richard F. Socha, Scott A. Stevenson
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Patent number: 5446232Abstract: Disclosed is a method and apparatus for removing oxygen from hydrogen, hydrocarbon, or halogenated hydrocarbon gas which contains about 0.01 to about 10 mole % oxygen. The oxygen removal is accomplished by contacting the gas with a Hopcalite catalyst at a temperature of about 100.degree. to about 300.degree. C. The invention can be part of a process for making 1,2-dichloroethane where, in a first reaction, ethane and chlorine are reacted to make ethylene and hydrogen chloride and, in a second reaction, the ethylene and hydrogen chloride are reacted with excess oxygen to make the 1,2-dichloroethane. The unreacted ethane can be recycled to the first step after the method of the invention is applied to remove the oxygen.Type: GrantFiled: February 14, 1994Date of Patent: August 29, 1995Assignee: Occidental Chemical CorporationInventors: Hang-Chang B. Chen, Deborah J. Olsen
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Patent number: 5430225Abstract: Derivatized molybdenum-sulfide dimers of the general formula [(C.sub.5 R.sub.5 Mo).sub.2 (.mu.-S).sub.4-x (.mu.-SR).sub.x ].sup.n are utilized in the solid state, incorporated in permselective membranes and in aqueous solution as chemical specific complexing agents in various separation processes.Type: GrantFiled: August 26, 1993Date of Patent: July 4, 1995Assignee: The University of Colorado Foundation, Inc.Inventors: Mary R. DuBois, Richard D. Noble, Carl A. Koval
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Patent number: 5414194Abstract: Derivatized molybdenum-sulfide dimers of the general formula [(C.sub.5 R.sub.5 Mo).sub.2 (.mu.-S).sub.4-x (.mu.-SR).sub.x ].sup.n are utilized in the solid state, incorporated in permselective membranes and in aqueous solution as chemical specific complexing agents in various separation processes.Type: GrantFiled: July 22, 1993Date of Patent: May 9, 1995Assignee: The Regents of the University of ColoradoInventors: Mary R. Dubois, Richard D. Noble, Carl A. Koval
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Patent number: 5378783Abstract: A highly polymerizable dicyclopentadiene (DCPD) monomer composition is obtained. The dicyclopentadiene so obtained is highly suitable for ring-opening polymerization by metathesis catalysts. The active DCPD yields articles with excellent physical properties upon in-mold polymerization.Type: GrantFiled: May 23, 1991Date of Patent: January 3, 1995Assignee: Nippon Zeon Co., Ltd.Inventors: Kin-ichi Okumura, Masao Torii, Hirotoshi Tanimoto, Motoyuji Yamato
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Patent number: 5371313Abstract: A process is provided for the removal of tertiary butyl chloride from a hydrocarbon stream, wherein the hydrocarbon stream is contacted at a temperature of from about 130.degree. to about 170.degree. C. with a particulate calcium oxide containing from 1 to 10 mole % of a Group 3 or 4 compound and the hydrocarbon stream is recovered containing a reduced level of tertiary butyl chloride.Type: GrantFiled: November 24, 1993Date of Patent: December 6, 1994Assignee: Polysar Rubber CorporationInventor: Andreas B. Ostrowicki
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Patent number: 5268091Abstract: A method for removing arsenic and/or phosphorus from a petroleum charge with a retaining material comprising:(a) from 60 to 97% of a carrier containing, by weight, from 1.5 to 60% of oxide of at least one metal A selected from the group consisting of Mg, Ca, Sr, Ba, Mn, Fe, Co, Ni, Cu and Zn, dissolved in alumina in the form of aluminate, and from 40 to 98.5% of at least one alumina,(b) from 3 to 40% of nickel oxide, with which the carrier is impregnated by exchange or depositing, and(c) possibly from 0 to 1% of platinum and/or palladium oxide with which the carrier is impregnated.Type: GrantFiled: May 10, 1991Date of Patent: December 7, 1993Assignee: Institut Francais de PetroleInventors: Jean P. Boitiaux, Philippe Courty, Patrick Sarrazin
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Patent number: 5220105Abstract: A process is provided for the purification of d-Limonene, particularly to remove odorous impurities. The process includes the step of mixing d-Limonene with an oxidizer and separating the oxidizer from the d-Limonene. In preferred embodiments, the d-Limonene is then mixed with an acid and separated. The preferred process also includes a wash water step. The oxidizer and acid are preferably provided in aqueous solutions. The process removes the odorous impurities without the formation of an off-color in the d-Limonene.Type: GrantFiled: March 25, 1992Date of Patent: June 15, 1993Assignee: The Coca-Cola CompanyInventors: Albert J. Kruger, Jr., Mark L. Corkum, Steven G. Carlson, Don H. Kimball
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Patent number: 5177301Abstract: Disclosed is a two-step method for separating isobutylene from a C-4 hydrocarbon fraction comprising:a) Reacting the C-4 fraction with a glycol in the presence of a catalyst comprising heteropoly acid on an inert support at a temperature of about 60.degree. to 160.degree. C. to yield the corresponding glycol mono-t-butyl ether, and subsequentlyb) reacting the intermediate glycol ether product over the same class of catalyst at a temperature of about 100.degree. to 220.degree. C. to regenerate the isolatable isobutylene.Type: GrantFiled: January 21, 1992Date of Patent: January 5, 1993Assignee: Texaco Chemical CompanyInventor: John F. Knifton
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Patent number: 5177297Abstract: A process for separating lithium from a conjugated diolefin polymer wherein a solution containing said conjugated diolefin polymer and a lithium compound is contacted with magnesium phosphate, magnesium phosphate dibasic, magnesium dihydrogen phosphate or a mixture thereof. Preferably, the magnesium phosphate compound is selected from the group consisting of mono- and dihydrogen phosphates. Most preferably, the magnesium phosphate is magnesium phosphate dibasic. The magnesium phosphate, magnesium phosphate dibasic, magnesium phosphate or mixture thereof may be used in combination with water and/or methanol with relatively good results. The lithium, which is a polymerization catalyst, can be removed immediately after the conjugated diolefin polymer is prepared by contacting the polymer solution with the magnesium phosphate compound.Type: GrantFiled: October 30, 1991Date of Patent: January 5, 1993Assignee: Shell Oil CompanyInventor: Carma J. Gibler
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Patent number: 5162597Abstract: A disproportionation catalyst comprising an ammonium or an alkali metal tungsten oxide and a process for forming disproportionation product using the disproportionation catalyst are disclosed. The disproportionation process is used to facilitate the separation of at least one 1-olefin from a mixture of olefins that have close boiling points by contacting the mixture of olefins with another 1-olefin under disproportionation conditions to produce disproportionation products which have significantly different boiling points among themselves and can be easily separated by conventional means.Type: GrantFiled: November 18, 1991Date of Patent: November 10, 1992Assignee: Phillips Petroleum CompanyInventor: An-hsiang Wu
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Patent number: 5159131Abstract: A chromatographic process able to separate para-xylene from C.sub.8 isomers and C.sub.9 aromatics. In the process, the para-xylene-containing feed mixture is contacted with an X zeolite adsorbent having barium or barium and potassium ions, at exchangeable cationic sites. The para-xylene components are selectively adsorbed onto the adsorbent. The non-adsorbed feed is then removed from the adsorbent and the para-xylene recovered by desorption with indan or an alkyl derivative of indan. Any C.sub.9 aromatic hydrocarbons and the other xylene isomers in the raffinate can be separated from these heavy desorbents by fractionation of the raffinate and the desorbent can be recycled to the process.Type: GrantFiled: December 23, 1991Date of Patent: October 27, 1992Assignee: UOPInventor: Hermann A. Zinnen
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Patent number: 5157204Abstract: A process for removing carbon monoxide and free oxygen from hydrocarbon-containing fluids comprises contacting the fluid feed with at least one of several supported platinum-containing catalyst compositions so as to convert carbon monoxide and free oxygen to carbon dioxide, essentially without oxidizing the hydrocarbon(s).Type: GrantFiled: June 14, 1991Date of Patent: October 20, 1992Assignee: Phillips Petroleum CompanyInventors: Scott H. Brown, John H. Kolts
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Patent number: 5130109Abstract: A catalyst composition suitable for three-way conversion of internal combustion engine, e.g., automobile gasoline engine, exhaust gases, includes a catalytic material disposed in two discrete coats on a carrier. The first coat includes a stabilized alumina support on which a first platinum catalytic component is dispersed and bulk ceria, and may also include bulk iron oxide, a metal oxide (such as bulk nickel oxide) which is effective for the suppression of hydrogen sulfide emissions, and one or both of baria and zirconia dispersed throughout the first coat as a thermal stabilizer. The second coat, which may comprise a top coat overlying the first coat, contains a co-formed (e.g., co-precipitated) rare earth oxide-zirconia support on which a first rhodium catalytic component is dispersed, and a second activated alumina support having a second platinum catalytic component dispersed thereon.Type: GrantFiled: August 6, 1991Date of Patent: July 14, 1992Inventor: Chung-Zong Wan
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Patent number: 5057644Abstract: This invention relates to a process for the purification of an alpha olefinic feedstock contaminated with internal olefins which process comprises contacting said alpha olefinic feedstock with ethylene in the presence of a catalyst comprising an organoborane promoted alkali metal doped molybdenum and/or rhenium oxide supported on an inorganic oxide support.Type: GrantFiled: October 31, 1990Date of Patent: October 15, 1991Assignee: Shell Oil CompanyInventors: Jiang-Jen Lin, Randall T. De Pue, Keith M. Kreitman
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Patent number: 4861939Abstract: The present invention relates to a process for removing arsine from a light olefin to containing hydrocarbon feedstock, said process comprising the steps of (a) passing said feedstock over an absorbent material comprising nickel deposited on a support material wherein nickel is present as both nickel oxide and metallic nickel; and (b) recovering a stream having a substantially reduced arsine content.Type: GrantFiled: September 23, 1988Date of Patent: August 29, 1989Assignee: Labofina, S.A.Inventors: Guy Debras, Philippe Bodart
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Patent number: 4849577Abstract: Process for eliminating jointly arsenic and carbon oxysulfide from an unsaturated hydrocarbon cut, wherein said hydrocarbon cut is contacted with an absorbing mass containing a support and lead oxide, comprising contacting the hydrocarbon cut in the liquid phase.Type: GrantFiled: March 16, 1988Date of Patent: July 18, 1989Assignee: Institut Francais Du PetroleInventors: Jean-Paul Boitiaux, Jean Cosyns
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Patent number: 4830735Abstract: The present invention relates to a process for removing carbonyl sulfide from a liquid hydrocarbon feedstock, said process comprising the steps of (a) passing said hydrocarbon feedstock over an absorbent material comprising nickel deposited on a support material wherein nickel is present as both nickel oxide and metallic nickel and wherein the absorbent material has been conditioned by passing an inert gas flow containing a minor amount of propylene; and (b) recovering a liquid hydrocarbon stream having a substantially reduced carbonyl sulfide content.Type: GrantFiled: September 30, 1987Date of Patent: May 16, 1989Assignee: Labofina, S.A.Inventors: Guy L. G. Debras, Georges E. M. J. De Clippeleir, Raymond M. Cahen
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Patent number: 4683033Abstract: Hydrocarbon solutions containing iodine or iodine-containing impurities are rendered essentially color-free by distillation in the presence of small amounts of a hydrocarbon soluble organometallic compound.Type: GrantFiled: January 24, 1986Date of Patent: July 28, 1987Assignee: Phillips Petroleum CompanyInventor: Raymond L. Cobb
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Patent number: 4613724Abstract: The present invention relates to a process for removing carbonyl sulfide from a liquid olefinic hydrocarbon feedstock comprising (a) passing said hydrocarbon feedstock over an absorbent material comprising zinc oxide and a promoter selected from the group consisting of alumina, silico-aluminas and any combination thereof; and (b) recovering a liquid olefinic hydrocarbon stream having a substantially reduced carbonyl sulfide content.Type: GrantFiled: July 9, 1985Date of Patent: September 23, 1986Assignee: Labofina, S.A.Inventors: Guy L. G. Debras, Georges E. M. J. De Clippeleir, Raymond M. Cahen
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Patent number: 4599472Abstract: Hydrocarbon solutions containing iodine or iodine-containing impurities are rendered essentially color-free by distillation in the presence of small amounts of a hydrocarbon soluble organometallic compound.Type: GrantFiled: June 27, 1985Date of Patent: July 8, 1986Assignee: Phillips Petroleum CompanyInventor: Raymond L. Cobb
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Patent number: 4435609Abstract: Isobutylene containing a minor amount, e.g. 0.06-0.10 wt %, of n-butene-1 is subjected to gas phase isomerization using hydrogen and Group VIII metal catalyst to convert the butene-1 to butene-2 with at least 65% conversion and no more than 0.3% hydrogenation of the isobutylene; butene-2 is more readily separated from the isobutylene by distillation. Isomerization conditions applied are defined by a pressure of 3 to 5 bars gauge, a temperature of from 40.degree. to 50.degree. C., a space velocity of from 150 to 300 vol/vol/hour, a mass velocity of from 1.1 to 1.5 metric tons/m2/hour and a hydrogen/feed volume ratio of not more than 2.5%.Type: GrantFiled: May 31, 1983Date of Patent: March 6, 1984Assignee: Exxon Research & Engineering Co.Inventor: Wolfgang W. J. Gschwendtner