Group Viii Metal Containing Catalyst Utilized Patents (Class 562/546)
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Patent number: 9700876Abstract: A hollow cylindrical shaped catalyst body for gas phase oxidation of an alkene to an ?,?-unsaturated aldehyde and/or an ?,?-unsaturated carboxylic acid comprises a compacted multimetal oxide having an external diameter ED, an internal diameter ID and a height H, wherein ED is in the range from 3.5 to 4.5 mm; the ratio q=ID/ED is in the range from 0.4 to 0.55; and the ratio p=H/ED is in the range from 0.5 to 1. The shaped catalyst body is mechanically stable and catalyzes the partial oxidation of an alkene to the products of value with high selectivity. It provides a sufficiently high catalyst mass density of the catalyst bed and good long-term stability with acceptable pressure drop.Type: GrantFiled: November 7, 2014Date of Patent: July 11, 2017Assignee: BASF SEInventors: Josef Macht, Christian Walsdorff, Cornelia Katharina Dobner, Stefan Lipp, Cathrin Alexandra Welker-Nieuwoudt, Ulrich Hammon, Holger Borchert
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Patent number: 9636663Abstract: The present disclosures and inventions relate to composite catalyst compositions for the catalytic oxidation of hydrocarbons such as propane with an oxygen containing stream, in the presence of a composite catalyst comprising CA that comprises at least components a metal M, a support S, and an optional alkali metal A, and also CB that comprises one or more mixed metal oxide phases comprising metals in the relative molar ratios indicated by the formula MoaVbGacPddNbeXf, to produce ?,?-unsaturated carboxylic acids such as acrylic acid and/or olefins such as propylene.Type: GrantFiled: April 22, 2014Date of Patent: May 2, 2017Assignee: Saudi Basic Industries CorporationInventors: Khalid Karim, Abdulaziz Al Jodai
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Patent number: 9174910Abstract: This invention provides a method for producing acrylic acid by catalytic gas-phase oxidation, which method makes it possible to carry out a continuous operation steadily for a long period of time while a high yield is maintained. This method is characterized by comprising filling each of reaction tubes of a fixed-bed multitubular reactor with at least two species of catalysts each of which essentially comprises, as catalytically active components, oxide of molybdenum and oxide of vanadium and/or composite oxide of the same, said at least two species of catalysts being different in the ratio of D1/D2, D1 denoting the proportion of the total pore volume of pores whose pore diameter falls within the range of at least 0.03 ?m and less than 0.4 ?m to the total pore volume of the whole pores, and D2 denoting the proportion of the total pore volume of pores whose pore diameter fails within the range of at least 0.Type: GrantFiled: March 28, 2013Date of Patent: November 3, 2015Assignee: NIPPON SHOKUBAI CO., LTD.Inventor: Toshiya Nishiguchi
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Patent number: 9067187Abstract: The present invention relates to a process for gas-phase oxidation, in which a gaseous stream comprising an aromatic hydrocarbon and molecular oxygen is passed through two or more catalyst zones. Furthermore, the present invention relates to a catalyst system for gas-phase reaction using a preliminary zone.Type: GrantFiled: August 16, 2012Date of Patent: June 30, 2015Assignee: BASF SEInventors: Hagen Wilmer, Jürgen Zühlke, Thomas Lautensack, Hans-Martin Allmann, Frank Rosowski, Cornelia Dobner
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Patent number: 9035092Abstract: A process for producing unsaturated carboxylic acids or unsaturated nitriles by vapor phase oxidation reaction of their corresponding C3 to C5 alkanes, C3 to C5 alkenes, and mixtures thereof, as a hydrocarbon starting material, wherein the process performance is monitored and the path of gasses through catalyst beds is altered. Improved catalyst lifetimes may be achieved.Type: GrantFiled: August 23, 2012Date of Patent: May 19, 2015Inventors: Scott Han, Edward C. Bayer, Andrew M. Lemonds, Daniel J. Martenak, Nelson I. Quiros
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Publication number: 20150133686Abstract: A hollow cylindrical shaped catalyst body for gas phase oxidation of an alkene to an ?,?-unsaturated aldehyde and/or an ?,?-unsaturated carboxylic acid comprises a compacted multimetal oxide having an external diameter ED, an internal diameter ID and a height H, wherein ED is in the range from 3.5 to 4.5 mm; the ratio q=ID/ED is in the range from 0.4 to 0.55; and the ratio p=H/ED is in the range from 0.5 to 1. The shaped catalyst body is mechanically stable and catalyzes the partial oxidation of an alkene to the products of value with high selectivity. It provides a sufficiently high catalyst mass density of the catalyst bed and good long-term stability with acceptable pressure drop.Type: ApplicationFiled: November 7, 2014Publication date: May 14, 2015Applicant: BASF SEInventors: Josef Macht, Christian Walsdorff, Cornelia Katharina Dobner, Stefan Lipp, Cathrin Alexandra Welker-Nieuwoudt, Ulrich Hammon, Holger Borchert
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Publication number: 20150045581Abstract: This invention provides a method for producing acrolein and/or acrylic acid by catalytic gas-phase oxidation, which method makes it possible to carry out a continuous operation steadily for a long period of time while a high yield is maintained. This method is characterized by comprising filling each of reaction tubes of a fixed-bed multitubular reactor with at least two species of catalysts each of which essentially comprises, as catalytically active components, oxide of molybdenum, oxide of bismuth and oxide of iron and/or composite oxide of at least two of said elements, said at least two species of catalysts being different in the ratio of D1/D2, D1 denoting the proportion of the total pore volume of pores whose pore diameter falls within the range of at least 0.03 ?m and less than 0.3 ?m to the total pore volume of the whole pores, and D2 denoting the proportion of the total pore volume of pores whose pore diameter falls within the range of at least 0.Type: ApplicationFiled: March 28, 2013Publication date: February 12, 2015Inventors: Tomoatsu Kawano, Hideo Onodera
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Publication number: 20140350282Abstract: A process for preparation of catalysts for the production of acrylonitrile, acetonitrile and hydrogen cyanide comprising contacting at an elevated temperature, propylene, ammonia and oxygen in the vapor phase in the presence of a catalyst, said catalyst comprising a complex of metal oxides wherein a heat-decomposable nitrogen containing compound is added during the process for the preparation of the catalyst.Type: ApplicationFiled: August 11, 2014Publication date: November 27, 2014Applicant: INEOS USA LLCInventors: James Frank Brazdil, Charles James Besecker, Michael J. Seely, Muin S. Haddad, Mark A. Toft
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Publication number: 20140350298Abstract: A process for producing unsaturated carboxylic acids or unsaturated nitriles by vapor phase oxidation reaction of their corresponding C3 to C5 alkanes, C3 to C5 alkenes, and mixtures thereof, as a hydrocarbon starting material, wherein the process performance is monitored and the path of gasses through catalyst beds is altered. Improved catalyst lifetimes may be achieved.Type: ApplicationFiled: August 23, 2012Publication date: November 27, 2014Applicant: Rohm And Haas CompanyInventors: Scott Han, Edward C. Bayer, Andrew M. Lemonds, Daniel J. Martenak, Nelson I. Quiros
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Patent number: 8841481Abstract: The present invention relates to a process for preparing unsaturated aldehydes or unsaturated carboxylic acids by heterogeneous catalytic gas phase oxidation of unsaturated or saturated hydrocarbons, comprising the process steps of: i) providing a gas mixture comprising a saturated hydrocarbon and catalytically dehydrogenating the saturated hydrocarbon in the gas phase to obtain a gas mixture comprising an unsaturated hydrocarbon in a dehydrogenation reactor having a dehydrogenation catalyst material; or ii) providing a gas mixture comprising oxygen and an unsaturated hydrocarbon; iii) catalytically oxidizing the unsaturated hydrocarbon obtained in process step i) or provided in process step ii) in the gas phase to obtain a gas mixture comprising an unsaturated aldehyde in a first oxidation reactor having a first oxidation catalyst material; wherein at least one of the reactors selected from the dehydrogenation reactor, the first oxidation reactor and the second oxidation reactor comprises at least one foam bType: GrantFiled: July 29, 2009Date of Patent: September 23, 2014Assignee: Evonik Degussa GmbHInventors: Horst-Werner Zanthoff, Nicole Brausch, Franz-Felix Kuppinger, Jorg Sauer, Andreas Sabbagh, Dennis Fruhling, Markus Weber, Oliver Becker
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Publication number: 20140046093Abstract: A process for charging a longitudinal section of a catalyst tube with a homogeneous fixed catalyst bed section whose active composition is at least one multielement oxide or comprises elemental silver on an oxidic support body and whose geometric shaped catalyst bodies and shaped inert bodies have a specific inhomogeneity of their longest dimensions.Type: ApplicationFiled: October 22, 2013Publication date: February 13, 2014Applicant: BASF SEInventors: Martin DIETERLE, Klaus Joachim MUELLER-ENGEL
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Patent number: 8598065Abstract: A process for charging a longitudinal section of a catalyst tube with a homogeneous fixed catalyst bed section whose active composition is at least one multielement oxide or comprises elemental silver on an oxidic support body and whose geometric shaped catalyst bodies and shaped inert bodies have a specific inhomogeneity of their longest dimensions.Type: GrantFiled: April 9, 2008Date of Patent: December 3, 2013Assignee: BASF SEInventors: Martin Dieterle, Klaus Joachim Müller-Engel
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Patent number: 8586786Abstract: A catalyst for use in the production of an unsaturated aldehyde and/or an unsaturated carboxylic acid, the catalyst comparing (or, preferably, being composed of) a mixed oxide containing molybdenum, bismuth and iron, which has improved methanical strength, is produced by a method including the steps of (1) drying an aqueous solution or an aqueous slurry containing raw materials of the catalyst and then firstly calcining a dried product in a molecular oxygen-containing gas atmosphere to obtain a calcined product; (2) heating the calcined product obtained in Step (1) in the presence of a reducing material to obtain a reduced product having a mass loss of 0.05 to 6%; and (3) secondly calcining the reduced product obtained in Step (2) in a molecular oxygen-containing gas atmosphere.Type: GrantFiled: July 23, 2012Date of Patent: November 19, 2013Assignee: Sumitomo Chemical Company, LimitedInventors: Naoki Miura, Eiichi Shiraishi, Koichi Nagai
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Patent number: 8563774Abstract: Disclosed is a method for producing a catalyst, in which physical properties of a dried material or a calcined material in a production process of the catalyst are stable and a change in at least one of a catalyst activity and a selectivity to a target product is small and hence reproducibility of the catalyst is excellent. The present invention is a method for producing a catalyst containing molybdenum, bismuth, and iron, which contains the steps of washing a surface of at least one device equipped in an apparatus for the production of catalyst, to which a solid matter adheres, with a basic solution, and producing the catalyst with the apparatus for the production of catalyst thus washed.Type: GrantFiled: March 15, 2013Date of Patent: October 22, 2013Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Masahide Kondo, Masanori Nitta, Hiroyuki Naitou, Toru Kuroda, Seiichi Kawato
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Patent number: 8546295Abstract: A process for preparing shaped catalyst bodies whose active composition is a multielement oxide, in which a finely divided precursor mixture with addition of graphite having a specific particle size is shaped to the desired geometry and then treated thermally.Type: GrantFiled: January 17, 2008Date of Patent: October 1, 2013Assignee: BASF AktiengesellschaftInventors: Andreas Raichle, Frank Rosowski, Sabine Huber, Ulrich Cremer, Stefan Altwasser, Klaus Joachim Mueller-Engel
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Publication number: 20130204030Abstract: Disclosed is a method for producing a catalyst, in which physical properties of a dried material or a calcined material in a production process of the catalyst are stable and a change in at least one of a catalyst activity and a selectivity to a target product is small and hence reproducibility of the catalyst is excellent. The present invention is a method for producing a catalyst containing molybdenum, bismuth, and iron, which contains the steps of washing a surface of at least one device equipped in an apparatus for the production of catalyst, to which a solid matter adheres, with a basic solution, and producing the catalyst with the apparatus for the production of catalyst thus washed.Type: ApplicationFiled: March 15, 2013Publication date: August 8, 2013Applicant: Mitsubishi Rayon Co., LTD.Inventor: Mitsubishi Rayon Co., LTD.
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Publication number: 20130172615Abstract: Provided is a catalyst for production of unsaturated aldehyde and/or unsaturated carboxylic acid, which shows excellent mechanical strength and low attrition loss and is capable of producing the object product(s) at a high yield. The catalyst comprises a catalytically active component containing molybdenum, bismuth and iron as the essential ingredients, and inorganic fibers, and is characterized in that the inorganic fibers contain at least an inorganic fiber having an average diameter of at least 8 ?m and another inorganic fiber having an average diameter not more than 6 ?m.Type: ApplicationFiled: September 7, 2011Publication date: July 4, 2013Applicant: NIPPON SHOKUBAI CO., LTD.Inventors: Tomoatsu Kawano, Yutaka Takahashi, Naohiro Fukumoto
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Patent number: 8404889Abstract: The invention offers an improvement in a process for start-up in the occasion of producing acrolein and acrylic acid by catalytically oxidizing propylene at vapor phase under high load conditions, the start-up meaning the step of increasing the propylene supply rate (loading) from the non-reacting condition to the prescribed reaction conditions. This process is characterized in that the propylene supply rate is increased in the start-up stage of the reaction until the prescribed composition of starting reactant gas and the flow rate of the starting reactant gas are obtained, while adjusting at least one of the reaction temperature, the composition of the starting reactant gas and flow rate of the starting reactant gas, so as to maintain the propylene conversion at not lower than 90 mol %, the maximum peak temperature of the catalyst layer in each reaction zone at no higher than 450° C.Type: GrantFiled: March 31, 2010Date of Patent: March 26, 2013Assignee: Nippon Shokubai Co., Ltd.Inventors: Michio Tanimoto, Hideo Onodera
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Patent number: 8389760Abstract: Disclosed is a palladium-containing catalyst which enables to produce an ?,?-unsaturated carboxylic acid in high selectivity from an olefin or an ?,?-unsaturated aldehyde. Also disclosed are a method for producing such a catalyst and a method for producing an ?,?-unsaturated carboxylic acid using such a catalyst. Specifically disclosed is a palladium-containing catalyst containing 0.001 to 0.25 mole of antimony element to 1 mole of palladium element or a palladium-containing catalyst containing palladium element which composes a metal, tellurium element, and bismuth element.Type: GrantFiled: November 8, 2011Date of Patent: March 5, 2013Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Toshiya Yasukawa, Toshiki Matsui, Ken Ooyachi, Yoshiyuki Himeno, Wataru Ninomiya
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Patent number: 8318631Abstract: A process for preparing a coated catalyst in which a finely divided mixture of a multielement oxide comprising the elements Mo and V and a molybdenum oxide or a molybdenum oxide former is applied to the surface of a support body as an active composition.Type: GrantFiled: February 28, 2008Date of Patent: November 27, 2012Assignee: BASF SEInventors: Ulrich Cremer, Andreas Raichle, Frank Rosowski, Ulrich Hammon, Klaus Joachim Mueller-Engel
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Publication number: 20120289741Abstract: A catalyst for use in the production of an unsaturated aldehyde and/or an unsaturated carboxylic acid, the catalyst comparing (or, preferably, being composed of) a mixed oxide containing molybdenum, bismuth and iron, which has improved methanical strength, is produced by a method including the steps of (1) drying an aqueous solution or an aqueous slurry containing raw materials of the catalyst and then firstly calcining a dried product in a molecular oxygen-containing gas atmosphere to obtain a calcined product; (2) heating the calcined product obtained in Step (1) in the presence of a reducing material to obtain a reduced product having a mass loss of 0.05 to 6%; and (3) secondly calcining the reduced product obtained in Step (2) in a molecular oxygen-containing gas atmosphere.Type: ApplicationFiled: July 23, 2012Publication date: November 15, 2012Inventors: Naoki MIURA, Eiichi Shiraishi, Koichi Nagai
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Patent number: 8247344Abstract: The present invention provides a Mo—Bi—Nb based composite metal oxide (with the proviso that Te is not included); a method for producing (meth)acrylic acid from at least one reactant selected from the group consisting of propylene, propane, isobutylene, t-butyl alcohol and methyl-t-butyl ether, in which a Mo—Bi—Nb based composite metal oxide (with the proviso that Te is not included) is used as a catalyst; and a reactor used for producing (meth)acrylic acid from at least one reactant selected from the group consisting of propylene, propane, isobutylene, t-butyl alcohol and methyl-t-butyl ether, in which a Mo—Bi—Nb based composite metal oxide (with the proviso that Te is not included) is used as a catalyst. Further, the present invention provides a method for producing the (meth)acrylic acid without any additional process of converting (meth)acrolein into (meth)acrylic acid.Type: GrantFiled: April 7, 2011Date of Patent: August 21, 2012Assignee: LG Chem, Ltd.Inventors: Hyun-Jong Shin, Byung-Yul Choi, Yeon-Shick Yoo, Young-Jin Cho
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Publication number: 20120184771Abstract: A method for producing an unsaturated aldehyde and an unsaturated carboxylic acid through gas-phase catalytic oxidation of propylene, isobutylene or tertiary butanol, which is a raw material, with molecular oxygen in the presence of a catalyst comprising a complex oxide including molybdenum, bismuth and iron as essential components, by controlling the molar ratio of oxygen to the raw material such that a rate of reaction of the raw material is kept constant in the temperature range of from (TA—15)° C. to TA° C., where TA° C. is the boundary temperature of the activation energy of the catalyst.Type: ApplicationFiled: March 23, 2012Publication date: July 19, 2012Applicant: MITSUBISHI RAYON CO., LTD.Inventors: Masahide Kondo, Seiichi Kawato, Toru Kuroda
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Patent number: 8173838Abstract: Disclosed is a method for producing at least one of an ?,?-unsaturated aldehyde and an ?,?-unsaturated carboxylic acid from an alcohol in a liquid phase through a simple process. Namely, at least one of an ?,?-unsaturated aldehyde and an ?,?-unsaturated carboxylic acid is produced by dehydrating and oxidizing an alcohol in a liquid phase at 110 to 250° C. in the presence of molecular oxygen and a noble metal-containing catalyst. Alternatively, at least one of an ?,?-unsaturated aldehyde and an ?,?-unsaturated carboxylic acid is produced by dehydrating and oxidizing an alcohol in a liquid phase in the presence of molecular oxygen, a noble metal-containing catalyst, and an acidic substance.Type: GrantFiled: October 3, 2006Date of Patent: May 8, 2012Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Akio Takeda, Yuji Fujimori, Seiichi Kawato
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Patent number: 8088946Abstract: The present invention provides: a palladium-containing supported catalyst which is used for producing an ?,?-unsaturated carboxylic acid from an olefin or an ?,?-unsaturated aldehyde in high selectivity; a method for manufacturing the catalyst; and a method for producing an ?,?-unsaturated carboxylic acid in high selectivity. In particular, the present invention resides in a method for manufacturing a palladium-containing supported catalyst for producing an ?,?-unsaturated carboxylic acid from an olefin or an ?,?-unsaturated aldehyde, comprising the step of reducing palladium oxide contained in a catalyst precursor wherein at least the palladium oxide is supported on a carrier. By using such a palladium-containing supported catalyst, an ?,?-unsaturated carboxylic acid is produced through liquid-phase oxidation of an olefin or an ?,?-unsaturated aldehyde with molecular oxygen.Type: GrantFiled: November 14, 2005Date of Patent: January 3, 2012Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Yoshiyuki Himeno, Wataru Ninomiya, Ken Ooyachi
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Patent number: 8088945Abstract: Disclosed is a palladium-containing catalyst which enables to produce an ?,?-unsaturated carboxylic acid in high selectivity from an olefin or an ?,?-unsaturated aldehyde. Also disclosed are a method for producing such a catalyst and a method for producing an ?,?-unsaturated carboxylic acid using such a catalyst. Specifically disclosed is a palladium-containing catalyst containing 0.001 to 0.25 mole of antimony element to 1 mole of palladium element or a palladium-containing catalyst containing palladium element which composes a metal, tellurium element, and bismuth element.Type: GrantFiled: December 10, 2010Date of Patent: January 3, 2012Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Toshiya Yasukawa, Toshiki Matsui, Ken Ooyachi, Yoshiyuki Himeno, Wataru Ninomiya
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Patent number: 8080493Abstract: The invention relates to polyoxometalates represented by the formula (An)m+ [M13X8RqOy]m? or solvates thereof, wherein A represents a cation, n is the number of the cations, m is the charge of the polyanion, M represents a transition metal selected from Pd, Pt, Au, Rh, Ir and mixtures thereof, X represents a heteroatom selected from As, Sb, Bi, P, Si, Ge, B, Al, Ga, S, Se, Te and mixtures thereof, and y is the number of oxygen atoms ranging from 32 to 40, a process for their preparation and their use for the catalytic oxidation of organic molecules.Type: GrantFiled: February 26, 2008Date of Patent: December 20, 2011Assignee: ExxonMobil Chemical Patents Inc.Inventors: Elena Vladimirovna Chubarova, Ulrich Kortz
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Patent number: 8080686Abstract: The present invention relates to an integrated process for producing unsaturated carboxylic acids from the corresponding C2-C4 alkane. The process begins with performance of thermally integrated dehydrogenation reactions which convert a C2-C4 alkane to its corresponding C2-C4 alkene, and which involve exothermically converting a portion of an alkane to its corresponding alkene by oxidative dehydrogenation in an exothermic reaction zone, in the presence of oxygen and a suitable catalyst, and then feeding the products of the exothermic reaction zone to an endothermic reaction zone wherein at least a portion of the remaining unconverted alkane is endothermically dehydrogenated to form an additional quantity of the same corresponding alkene, in the presence of carbon dioxide and an other suitable catalyst.Type: GrantFiled: December 11, 2008Date of Patent: December 20, 2011Assignee: Rohm and Haas CompanyInventors: Abraham Benderly, Nitin Chadda, Douglass Sevon
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Patent number: 8058473Abstract: Disclosed is a method for producing an ?, ?-unsaturated carboxylic acid from an olefin or an ?, ?-unsaturated aldehyde, while suppressing dissolution of a silica carrier, which is a carrier for a silica-supported noble metal-containing catalyst, in a water-containing solvent. Specifically disclosed is a method for producing an ?, ?-unsaturated carboxylic acid through oxidation of an olefin or an ?, ?-unsaturated aldehyde in a water-containing solvent in the presence of a silica-supported noble metal-containing catalyst in a reactor, in which at least one of silicic acid and ions thereof is supplied into the reactor.Type: GrantFiled: December 26, 2007Date of Patent: November 15, 2011Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Toshiki Matsui, Yoshiyuki Himeno, Kazunori Matake
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Publication number: 20110245535Abstract: The present invention provides a Mo—Bi—Nb based composite metal oxide (with the proviso that Te is not included); a method for producing (meth)acrylic acid from at least one reactant selected from the group consisting of propylene, propane, isobutylene, t-butyl alcohol and methyl-t-butyl ether, in which a Mo—Bi—Nb based composite metal oxide (with the proviso that Te is not included) is used as a catalyst; and a reactor used for producing (meth)acrylic acid from at least one reactant selected from the group consisting of propylene, propane, isobutylene, t-butyl alcohol and methyl-t-butyl ether, in which a Mo—Bi—Nb based composite metal oxide (with the proviso that Te is not included) is used as a catalyst. Further, the present invention provides a method for producing the (meth)acrylic acid without any additional process of converting (meth)acrolein into (meth)acrylic acid.Type: ApplicationFiled: April 7, 2011Publication date: October 6, 2011Inventors: Hyun-Jong SHIN, Byung-Yul Choi, Yeon-Shick Yoo, Young-Jin Cho
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Patent number: 7994091Abstract: Disclosed is a palladium-containing catalyst for producing an ?, ?-unsaturated carboxylic acid from an olefin or an ?, ?-unsaturated aldehyde in high productivity. Also disclosed are a method for producing such a catalyst, and a method for producing an ?, ?-unsaturated carboxylic acid in high productivity. Specifically, a palladium-containing catalyst is produced by a method containing a step in which palladium in an oxidation state is reduced by a compound (A) which is represented by the following formula (1).Type: GrantFiled: December 26, 2006Date of Patent: August 9, 2011Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Yoshiyuki Himeno, Ken Ooyachi, Toshiya Yasukawa
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Publication number: 20110112325Abstract: A catalyst for producing acrolein and/or acrylic acid from propylene by gas-phase catalytic oxidation with molecular oxygen-containing gas, comprising a catalytic active component containing molybdenum, bismuth and cobalt as essential elements, and having a crystallinity T of 4% or more and 18% or less in the 2? range of 5° to 90°, measured by an X-ray diffraction analysis with Cu—K? radiation; and a process for producing acrolein and/or acrylic acid by gas-phase catalytic oxidation of propylene with molecular oxygen, comprising the step of conducting the gas-phase catalytic oxidation in the presence of the catalyst. According to the catalyst and the process for producing acrolein and/or acrylic acid of the present invention, it is possible to stably produce acrolein and/or acrylic acid at a high yield for a long period.Type: ApplicationFiled: September 25, 2009Publication date: May 12, 2011Inventors: Michio Tanimoto, Nobuyuki Hakozaki
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Patent number: 7880034Abstract: The invention relates to a method for preparing acrylic acid from propylene, comprising the oxidation of propylene to acrolein and a second step comprising the oxidation of acrolein to acrylic acid, including a glycerol dehydration step preformed in the presence of a gas containing propylene and, more specifically, in the presence of the reaction gas originating from the propylene to acrolein oxidation step. The inventive method enables the use, in part, of renewable raw material, while increasing acrylic acid production.Type: GrantFiled: February 6, 2007Date of Patent: February 1, 2011Assignee: Arkema FranceInventor: Jean-Luc Dubois
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Publication number: 20100324326Abstract: A catalyst for the oxidation of an alkane, alkene or mixtures thereof. The catalyst includes a mixed-metal oxide having the formula MoaVbNbcTedSbeOf wherein, when a=1, b=0.01 to 1.0, c=0.01 to 1.0, d=0.01 to 1.0, e=0.01 to 1.0, and f is dependent upon the oxidation state of the other elements, the catalyst further characterized by having at least two crystal phases, the first crystal phase being an orthorhombic M1 phase and the second crystal phase being a pseudo-hexagonal M2 phase, the orthorhombic M1 phase present in an amount between greater than 60 weight percent to less than 90 weight percent. The catalysts disclosed herein exhibit a chemisorption of NH3 of less than about 0.2 mmole per gram of metal oxide.Type: ApplicationFiled: August 26, 2010Publication date: December 23, 2010Applicant: ExxonMobil Research and Engineering CompanyInventors: Kun Wang, James C. Vartuli, Wilfried J. Mortier, Jihad M. Dakka, Robert C. Lemon
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Patent number: 7820854Abstract: The present invention relates to an improved process for the conversion of alkanes to unsaturated carboxylic acids.Type: GrantFiled: March 19, 2008Date of Patent: October 26, 2010Assignee: Rohm and Haas CompanyInventors: Andrew Michael Lemonds, Eric Gustave Lundquist, Donald Lee Zolotorofe
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Patent number: 7807853Abstract: A process for heterogeneously catalyzed partial gas phase oxidation of propylene to acrylic acid in the absence of propane as an inert diluent gas, in which, in the starting reaction gas mixture, cyclopropane is substantially avoided as an impurity and crude propylene is used additionally as a propylene source.Type: GrantFiled: December 4, 2006Date of Patent: October 5, 2010Assignee: BASF AktiengesellschaftInventors: Martin Dieterle, Armin Diefenbacher, Klaus Joachim Mueller-Engel, Jochen Petzoldt
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Publication number: 20100234639Abstract: Disclosed is a palladium-containing catalyst for producing an ?,?-unsaturated carboxylic acid from an olefin or an ?,?-unsaturated aldehyde in high productivity. Also disclosed are a method for producing such a catalyst, and a method for producing an ?,?-unsaturated carboxylic acid in high productivity. Specifically, a palladium-containing catalyst is produced by a method containing a step in which palladium in an oxidation state is reduced by a compound (A) which is represented by the following formula (1).Type: ApplicationFiled: December 26, 2006Publication date: September 16, 2010Applicant: Mitsubishi Rayon Co., Ltd.Inventors: Yoshiyuki Himeno, Ken Ooyachi, Toshiya Yasukawa
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Patent number: 7772442Abstract: Disclosed is a shell-and-tube reactor that may be used for fixed-bed catalytic partial oxidation, the reactor being characterized by including at least one reaction zone of a first-step reaction zone for mainly producing unsaturated aldehydes and a second-step reaction zone for mainly producing unsaturated acids, wherein at least one reaction zone of the above reaction zones comprises two or more catalytic layers; each of the catalytic layers is packed with a formed product of catalyst that is different in pore density and/or pore size in a catalytically active component; and the pore density and/or pore size is controlled in such a manner that specific surface area of the catalytically active component increases from the inlet of the reactor to the outlet of the reactor. A method for producing unsaturated aldehydes and/or unsaturated fatty acids from olefins using the same reactor is also disclosed.Type: GrantFiled: March 31, 2009Date of Patent: August 10, 2010Assignee: LG Chem, Ltd.Inventors: Yeon Shick Yoo, Hyun Jong Shin, Byung Yul Choi, Young Hyun Choi, Young Jin Cho, Duk Ki Kim, Joo Yeon Park, Kwang Ho Park
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Patent number: 7642214Abstract: An object of the present invention is to provide a highly active catalyst for producing an unsaturated oxygen-containing compound from an alkane and the catalyst comprising Mo, V, Ti and Sb or Te as the indispensable active components. The preferable catalyst is represented by formula (1) or (2) as shown below, Mo1.0VaTibXcYdOe??(1) Mo1.0VaTibXcYdZfOe??(2) wherein X represents Sb or Te; Y represents Nb, W or Zr; Z represents Li, Na, K, Rb, Cs, Mg, Ca or Sr; a, b, c, d, e and f represent atomic ratios of their respective elements, with 0<a<0.7, 0<b<0.3, 0<c<0.7, 0?d<0.3, 0<f<0.1; e is a number determined by oxidation states of the other elements than oxygen.Type: GrantFiled: July 28, 2006Date of Patent: January 5, 2010Assignee: Nippon Kayaku Kabushiki KaishaInventors: Tomoaki Kobayashi, Yoshimasa Seo
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Patent number: 7592483Abstract: A process for preparing acrolein or acrylic acid or a mixture thereof by heterogeneously catalyzed partial gas oxidation of propylene, in which the starting reaction gas mixture has the following contents: from 6 to 9% by volume of propylene, from 8 to 18% by volume of molecular oxygen, from 6 to 30% by volume of propane and from 32 to 72% by volume of molecular nitrogen.Type: GrantFiled: May 18, 2005Date of Patent: September 22, 2009Assignee: BASF AktiengesellschaftInventors: Martin Dieterle, Armin Diefenbacher, Goetz-Peter Schindler, Catharina Klanner, Klaus Joachim Mueller-Engel, Christoph Adami
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Method for producing catalyst for production of unsaturated aldehyde and unsaturated carboxylic acid
Patent number: 7579297Abstract: A method for producing a catalyst containing at least molybdenum, bismuth and iron including the steps of kneading particles containing catalyst components, an organic binder and a liquid, where the organic binder contains at least a high-viscosity organic binder having a viscosity of from 5,000 mPa·s to 25,000 mPa·s and a low-viscosity organic binder having a viscosity of from 10 mPa·s to less than 5,000 mPa·s, and extrusion molding the resultant kneaded mixture is provided.Type: GrantFiled: December 9, 2004Date of Patent: August 25, 2009Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Masahide Kondo, Hiroyuki Naitou, Toru Kuroda -
Publication number: 20090156860Abstract: The object of the present invention is to provide a catalyst which can produce an ?,?-unsaturated carboxylic acid through liquid-phase oxidation of an olefin or an ?,?-unsaturated aldehyde in good reaction performance, a method for producing the catalyst, and a method for producing an ?,?-unsaturated carboxylic acid by using the catalyst. The present invention resides in a catalyst for producing an ?,?-unsaturated carboxylic acid, wherein a metal is supported on a carrier with a total pore volume of 0.40 to 1.50 cc/g as measured by nitrogen gas adsorption method, or wherein palladium with an average particle diameter in the range of 1 to 8 nm is supported on the carrier.Type: ApplicationFiled: February 19, 2009Publication date: June 18, 2009Applicant: Mitsubishi Rayon Co., Ltd.Inventors: Yuji Fujimori, Wataru Ninomiya, Akio Takeda, Mai Kojima
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Patent number: 7456313Abstract: A process for oxidizing a hydrocarbon, which comprises subjecting the hydrocarbon to a liquid phase catalytic oxidation reaction in the presence of at least one oxidation catalyst to form an oxidized product.Type: GrantFiled: December 28, 2006Date of Patent: November 25, 2008Assignee: Rohm and Haas CompanyInventors: Andrew Michael Lemonds, Donald Lee Zolotorofe
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Patent number: 7446223Abstract: The present invention provides: a palladium-containing catalyst which is used for highly selectively or highly productively producing an ?,?-unsaturated aldehyde and an ?,?-unsaturated carboxylic acid from an olefin or in that way producing an ?,?-unsaturated carboxylic acid from an ?,?-unsaturated aldehyde; a method for producing the catalyst; and a method for highly selectively or highly productively producing an ?,?-unsaturated aldehyde and an ?,?-unsaturated carboxylic acid from an olefin or in that way producing an ?,?-unsaturated carboxylic acid from an ?,?-unsaturated aldehyde. In particular, the present invention resides in a palladium-containing catalyst comprising 0.001 to 0.40 mole of tellurium metal to 1.0 mole of palladium metal. This catalyst can be preferably produced by a method having a step of reducing a compound containing palladium atom in its oxidized state and tellurium atom in its oxidized state by a reducing agent.Type: GrantFiled: June 2, 2005Date of Patent: November 4, 2008Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Wataru Ninomiya, Yoshiyuki Himeno, Yuji Fujimori
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Patent number: 7439389Abstract: A process for preparing an organic target compound by heterogeneously catalyzed gas phase partial oxidation of an organic precursor compound with molecular oxygen in two oxidation reactor lines operated in parallel and removal of the target compound from the mixture of the product gas streams in a workup line, wherein the catalyst charge of one of the oxidation lines comprises a portion of catalyst over which the heterogeneously catalyzed gas phase partial oxidation has already been carried out for longer than over the portions of catalyst of the catalyst charge of the other oxidation reactor line.Type: GrantFiled: February 21, 2006Date of Patent: October 21, 2008Assignee: BASF AktiengesellschaftInventors: Martin Dieterle, Klaus Joachim Mueller-Engel, Jochen Petzoldt, Ulrich Hammon
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Publication number: 20080177105Abstract: A process for preparing shaped catalyst bodies whose active composition is a multielement oxide, in which a finely divided precursor mixture with addition of graphite having a specific particle size is shaped to the desired geometry and then treated thermally.Type: ApplicationFiled: January 17, 2008Publication date: July 24, 2008Applicant: BASF SEInventors: Andreas Raichle, Frank Rosowski, Sabine Huber, Ulrich Cremer, Stefan Altwasser, Klaus Joachim Mueller-Engel
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Patent number: 7388108Abstract: An oxidation reactor includes a reactor body, a manhole nozzle projecting from the reactor body, and a partition plate separating an inside of the manhole nozzle and an inside of the reactor body from each other. In an oxidation reactor including the reactor body and a nozzle projecting from the reactor body, there is provided a means for feeding an inert gas into the nozzle. In a process for producing (meth)acrylic acids by subjecting propane, propylene or isobutylene to catalytic gas-phase oxidation reaction in an oxidation reactor for producing (meth)acrolein or (meth)acrylic acid, the above oxidation reactor is used as the oxidation reactor. In a method for analyzing an easily-polymerizable compound by introducing a gas containing the easily-polymerizable compound into an analyzing apparatus through a sampling tube, a double tube is used as the sampling tube, and a heating medium is fed into an outer tube of the double tube.Type: GrantFiled: October 26, 2006Date of Patent: June 17, 2008Assignee: Mitsubishi Chemical CorporationInventors: Shuhei Yada, Yasushi Ogawa, Yoshiro Suzuki, Hirochika Hosaka, Yasuhiko Samura
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Patent number: 7361622Abstract: 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 alkanes to corresponding alkenes at flame temperatures and at short contact times in combination with one or more oxidation catalysts for catalytically converting the corresponding alkenes to further corresponding oxygenated products using short contact time reactor conditions.Type: GrantFiled: November 8, 2005Date of Patent: April 22, 2008Assignee: Rohm and Haas CompanyInventors: Abraham Benderly, Anne Mae Gaffney, Mark Anthony Silvano
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Publication number: 20080004173Abstract: A process for regenerating a catalyst consisting of a mixed oxide having molybdenum, bismuth and iron used for preparing an unsaturated aldehyde and/or an unsaturated carboxylic acid by catalytically oxidizing propylene, isobutylene and/or tert.-butanol with molecular oxygen in a gas phase, in which the catalyst is regenerated by thermally treating the deteriorated catalyst in an atmosphere of a gas containing molecular oxygen at a temperature of 200 to 500° C., and then thermally treating the catalyst in the presence of a reducing compound at a temperature of 200 to 500° C.Type: ApplicationFiled: June 27, 2007Publication date: January 3, 2008Inventors: Naoki Miura, Koichi Nagai, Noriaki Suyasu
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Patent number: 7304176Abstract: It is an object of the present invention to provide a process for producing easily polymerizable substance, which can realize stable operation of a purification system, and can stably maintain a production amount by avoiding production stoppage, upon production of an easily polymerizable substance in plural reactors. The present invention is directed to a process for producing easily polymerizable substance, which comprises mixing easily polymerizable substances obtained in plural reactors in advance, and supplying the mixture to a purification apparatus.Type: GrantFiled: May 13, 2004Date of Patent: December 4, 2007Assignee: Nippon Shokubai Co., Ltd.Inventor: Takeshi Nishimura