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| Number | Title | Issue Date |
| 7531690 | Palladium, tungsten and zirconium-based catalyst for production of oxygen-containing compound, production process of the catalyst, and production process of oxygen-containing compound using the catalyst A catalyst for the production of an oxygen-containing compound, comprising palladium, tungsten and zirconium, a production process thereof, and a production process of an oxygen-containing compound using the catalyst. The catalyst can provide an oxygen-containing co... | 05/12/2009 |
| 7411107 | Alkene separation process A process for the oxidation of a C2 to C4 alkane to produce the corresponding alkene and carboxylic acid which process comprises separation of the alkene from a mixture of the alkene, the alkane and oxygen by absorption in a metallic salt solut... | 08/12/2008 |
| 7368599 | Ethane oxidation catalyst and process utilising the catalyst A catalyst composition and its use for the selective oxidation of ethane to acetic acid and/or for the selective oxidation of ethylene to acetic acid. The composition includes in combination with oxygen the elements molybdenum, vanadium, niobium, gold in the absence... | 05/06/2008 |
| 7361622 | Multi-staged catalyst systems and process for converting alkanes to alkenes and to their corresponding oxygenated products Alkenes, unsaturated saturated carboxylic acids, saturated carboxylic acids and their higher analogues are prepared cumulatively from corresponding alkanes utilizing using a multi-staged catalyst system and a multi-stage process which comprises steam cracking of alk... | 04/22/2008 |
| 7357907 | Method for producing single walled carbon nanotubes A catalyst composition and method of use of the catalyst composition for producing single-walled carbon nanotubes (SWNTs). The catalyst is cobalt (Co) and molybdenum (Mo) on a silica support. The Mo occurs primarily as dispersed Mo oxide clusters on the support whil... | 04/15/2008 |
| 7294734 | Process for converting a hydrocarbon to an oxygenate or a nitrile This invention relates to a process for converting a hydrocarbon reactant to a product comprising an oxygenate or a nitrile, the process comprising: (A) flowing a reactant composition comprising the hydrocarbon reactant, and oxygen or a source of oxygen, and optiona... | 11/13/2007 |
| 7271293 | Control method for process of removing permanganate reducing compounds from methanol carbonylation process Disclosed is a method of controlling a separation process for removing permanganate reducing compounds from a process stream in the methanol carbonylation process for making acetic acid, where the method includes the steps of measuring the density of a stream contai... | 09/18/2007 |
| 7211688 | Process for the production of an alkenyl carboxylate or an alkyl carboxylate Process for producing an alkyl carboxylate, comprising contacting in an oxidation reaction zone a C2 to C4 alkane, a molecular oxygen-containing gas, the corresponding alkene and optionally water, in the presence of at least one catalyst active... | 05/01/2007 |
| 7189871 | Oxidation process in fluidized bed reactor A process for reacting in a fluid bed reactor at least one oxidizable reactant with molecular oxygen in the presence of a catalytically active fluidized bed of solid particles. In the process a molecular oxygen-containing gas having an oxygen concentration greater t... | 03/13/2007 |
| 7189377 | Apparatus for performing integrated process for reproduction of vinyl acetate and/or acetic acid using a fluidized bed 1. Acetic acid and/or vinyl acetate are produced by an integrated process which comprises the steps:— (a) contacting in a first reaction zone a gaseous feedstock comprising ethylene and/or ethane and optionally steam with a molecular oxygen-containing... | 03/13/2007 |
| 7081549 | Process for the production of acetic acid A process for the production of acetic acid, which process comprises contacting ethane and/or ethylene with a molecular oxygen-containing gas in a fluid bed reactor in the presence of a microspheroidal fluidised particulate solid oxidation catalyst, wherein at least... | 07/25/2006 |
| 7078563 | Oxidation process for the production of alkenes and carboxylic acids A process for the oxidation of a C2 to C4 alkane to produce the corresponding alkene and carboxylic acid which process comprises contacting in an oxidation reaction zone, said alkane, molecular oxygen-containing gas, and the corresponding alken... | 07/18/2006 |
| RE39074 | Process for the selective preparation of acetic acid using a molybdenum and palladium based catalytic oxide The present invention relates to a process for the selective preparation of acetic acid from a gaseous feed comprising ethane, ethylene or mixtures thereof plus oxygen at elevated temperature, which comprises bringing the gaseous feed into contact with a catalyst co... | 04/18/2006 |
| 7015355 | Method for the selective production of acetic acid by catalytic oxidation of ethane and/or ethylene A method for the selective production of acetic acid from a gas-phase feed of ethane, ethylene, or mixtures thereof and oxygen at elevated temperatures. The gas-phase feed is brought into contact with a catalyst, containing the elements Mo, Pd, X and Y in the gram a... | 03/21/2006 |
| 6906221 | Method for producing acetic acid The invention relates to a method for producing acetic acid by oxidizing ethane in fluid bed reactors with high selectivity and high yields. ... | 06/14/2005 |
| 6781013 | Process for producing acrolein and acrylic acid A process is provided which can effectively inhibit occurrence of hot spots in reaction zones or heat accumulation at the hot spots, in the occasion of producing acrolein and acrylic acid through vapor phase oxidation of propylene in the presence of a catalyst using... | 08/24/2004 |
| 6706919 | Catalyst for use in producing acetic acid, process for producing the catalyst, and process for producing acetic acid using the catalyst A catalyst for use in producing acetic acid, comprising as essential components (a) palladium and (b) at least one compound selected from heteropolyacids and/or salts thereof, wherein (c) a vanadium element and/or molybdenum element is contained in a specific propor... | 03/16/2004 |
| 6646158 | Catalytic oxidation of alkanes to corresponding acids A mixed metal oxide Mo--V--Ga--Pd--Nb--X catalytic system, where X is selected from La, Te, and Zn, provides the oxidation of C2 -C8 hydrocarbons to corresponding acids with a molecular oxygen-containing gas.... | 11/11/2003 |
| 6602476 | Apparatus and process for heat exchange with fluid beds Apparatus and process for heat exchange with fluid beds comprises heat-exchange tubes located longitudinally with respect to the axis of a fluidization zone with a rectangular pitch, one side of which having a length at least one and a half times the leng... | 08/05/2003 |
| 6531631 | Oxidation of ethane to acetic acid and ethylene using molybdenum and vanadium based catalysts A process for producing olefins and carboxylic acids from lower alkanes using a mixed metal oxide catalytic system comprising a catalyst having the formula Moa Vb Alc Xd Ye Oz wherein: X is at l... | 03/11/2003 |
| 6441227 | Two stage process for the production of unsaturated carboxylic acids by oxidation of lower unsaturated hydrocarbons A process for the production of alpha-beta unsaturated carboxylic acid with high yield at low temperature and atmospheric pressure, includes two stages for catalytic vapor-phase oxidation of olefins with molecular oxygen. In a first stage, olefins are oxi... | 08/27/2002 |
| 6429331 | Process for preparing saturated carboxylic acids having from 1 to 4 carbon atoms from butenes and butanes A process for preparing saturated carboxylic acids having from 1 to 4 carbon atoms at a reaction temperature of from 100° C. to 400° C. and pressures of from 1.2×105 Pa to 51×105 Pa by gas phase oxidation of saturated and/or ... | 08/06/2002 |
| 6399816 | Method for selectively producing acetic acid through the catalytic oxidation of ethane The invention relates to a method for selectively producing acetic acid from a gaseous feedstock of ethane, ethylene or mixtures thereof and oxygen at a high temperature. Said gaseous feedstock is brought together with a catalyst containing the elements M... | 06/04/2002 |
| 6333444 | Oxidation catalyst and process utilizing the catalyst A catalyst composition and its use for the oxidation of ethane to ethylene and/or acetic acid and/or for the oxidation of ethylene to acetic acid which comprises in combination with oxygen the elements molybdenum, vanadium, niobium and gold in the absence... | 12/25/2001 |
| 6281385 | Process for preparing acetic acid by gas-phase oxidation of saturated C4-hydrocarbons and their mixtures with unsaturated C4-hydrocarbons A process for preparing acetic acid by gas-phase oxidation of saturated C4 -hydrocarbons and their mixtures with unsaturated C4 -hydrocarbons in a tube reactor using a coated catalyst comprising an inert nonporous support body and a ... | 08/28/2001 |
| 6274764 | Process for one step gas phase production of acetic acid from ethylene A mixed metal oxide catalytic system comprising MoVNbPd or MoLaVPd providing higher selectivity and space time yield of acetic acid in the low temperature single stage oxidation of ethylene with molecular oxygen-containing gas and steam with very minimum ... | 08/14/2001 |
| 6274765 | Process and catalyst for preparing acetic acid by catalytic oxidation of ethane A process is disclosed for selectively preparing acetic acid from a gaseous feed of ethane, ethylene or mixtures thereof, as well as oxygen, at an increased temperature, on a catalyst which contains the elements W, X, Y and Z in the gram-atom ratio a:b:c:... | 08/14/2001 |
| 6274763 | Shell catalyst for producing acetic acid by gas phase oxidation of unsaturated C4 -hydrocarbons The invention relates to a shell catalyst for producing acetic acid by gas-phase oxidation of unsaturated C4 -hydrocarbons, comprising an inert non-porous carrier and a catalytically active mixed oxide material applied on the outer surface of t... | 08/14/2001 |
| 6258992 | Gas phase catalytic oxidation of hydrocarbons to carboxylic acids and dehydrogenated products Lower hydrocarbons are converted to carboxylic acids and/or dehydrogenated hydrocarbon product by contacting a feed mixture containing lower hydrocarbons, oxygen source, diluent, and sulfur-containing compound, with a multifunctional, mixed metal catalyst... | 07/10/2001 |
| 6194610 | Process for the selective preparation of acetic acid using a molybdenum and palladium based catalytic oxide The present invention relates to a process for the selective preparation of acetic acid from a gaseous feed comprising ethane, ethylene or mixtures thereof plus oxygen at elevated temperature, which comprises bringing the gaseous feed into contact with a ... | 02/27/2001 |
| 6180821 | Integrated process for the production of vinyl acetate and/or acetic acid using a fluidized bed Acetic acid and/or vinyl acetate are produced by an integrated process in which a gaseous feedstock comprising ethylene and/or ethane and optionally steam is contacted in a first reaction zone (step (a)) with a molecular oxygen-containing gas in the prese... | 01/30/2001 |
| 6156928 | Method for gas phase production of acetic acid from ethane A mixed metal oxide catalytic system consisting of molybdenum, vanadium, lanthanum and palladium providing higher yields of acetic acid in low temperature single stage oxidation of ethane with molecular oxygen-containing gas without or with reduced produc... | 12/05/2000 |
| 6130356 | Catalysts for the oxidation of ethane to acetic acid, methods of making and using the same A mixed metal oxide MoVLaPdNbXO catalytic system (wherein X=Al, Ga, Ge and/or Si) providing higher selectivity and space time yield of acetic acid at low pressure and low temperature in a single stage oxidation of ethane with a molecular oxygen-containing... | 10/10/2000 |
| 6040474 | Integrated process for the production of vinyl acetate and/or acetic acid 1. Acetic acid and/or vinyl acetate are produced by an integrated process which comprises the steps: (a) contacting in a first reaction zone a gaseous feedstock comprising ethylene and/or ethane and optionally steam with a molecular oxygen-containing gas ... | 03/21/2000 |
| 6034270 | Process for the selective preparation of acetic acid using a molybdenum, palladium, and rhenium catalyst A process for the selective preparation of acetic acid from a gaseous feed comprising ethane, ethylene or mixtures thereof plus oxygen at elevated temperature, which comprises bringing the gaseous feed into contact with a catalyst comprising the elements ... | 03/07/2000 |
| 6028221 | Catalyst systems for the one step gas phase production of acetic acid from ethylene and methods of making and using the same A mixed metal oxide catalytic system comprising MoVNbPd or MoLaVPd providing higher selectivity and space time yield of acetic acid in the low temperature single stage oxidation of ethylene with molecular oxygen-containing gas and steam with very minimum ... | 02/22/2000 |
| 5405996 | Process for producing acetic acid A process for producing acetic acid comprising reacting ethylene and oxygen in the presence of a catalyst comprising metallic Pd and at least one member selected from the group consisting of heteropoly-acids and their salts, or in the presence of a cataly... | 04/11/1995 |
| 5399752 | Purification of carboxyl streams Disclosed is a process for the purification of carboxyl streams such as product streams comprising one or more carboxyl compounds selected from carboxylic acids, carboxylic anhydrides and alkylidene dicarboxylates. The process provides a means for the red... | 03/21/1995 |
| 5304678 | Acetic acid from ethylene Disclosed is making acetic acid by reacting in a reaction zone ethylene and molecular oxygen in the presence of a solid catalyst containing the elements and proportions indicated by the empirical formula Pda Mb TiPc Ox | 04/19/1994 |
| 5264625 | Catalytic gas-phase oxidation of acrolein to acrylic acid A process for the catalytic gas-phase oxidation of acrolein to acrylic acid in a fixed-bed reactor with contacting tubes, at elevated temperature on catalytically active oxides with a conversion of acrolein for a single pass of ࣙ95%, wherein the reactio... | 11/23/1993 |
