Group Viii Metal Containing Catalyst Utilized Patents (Class 562/546)
  • Patent number: 9700876
    Abstract: 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: Grant
    Filed: November 7, 2014
    Date of Patent: July 11, 2017
    Assignee: BASF SE
    Inventors: Josef Macht, Christian Walsdorff, Cornelia Katharina Dobner, Stefan Lipp, Cathrin Alexandra Welker-Nieuwoudt, Ulrich Hammon, Holger Borchert
  • Patent number: 9636663
    Abstract: 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: Grant
    Filed: April 22, 2014
    Date of Patent: May 2, 2017
    Assignee: Saudi Basic Industries Corporation
    Inventors: Khalid Karim, Abdulaziz Al Jodai
  • Patent number: 9174910
    Abstract: 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: Grant
    Filed: March 28, 2013
    Date of Patent: November 3, 2015
    Assignee: NIPPON SHOKUBAI CO., LTD.
    Inventor: Toshiya Nishiguchi
  • Patent number: 9067187
    Abstract: 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: Grant
    Filed: August 16, 2012
    Date of Patent: June 30, 2015
    Assignee: BASF SE
    Inventors: Hagen Wilmer, Jürgen Zühlke, Thomas Lautensack, Hans-Martin Allmann, Frank Rosowski, Cornelia Dobner
  • Patent number: 9035092
    Abstract: 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: Grant
    Filed: August 23, 2012
    Date of Patent: May 19, 2015
    Inventors: Scott Han, Edward C. Bayer, Andrew M. Lemonds, Daniel J. Martenak, Nelson I. Quiros
  • Publication number: 20150133686
    Abstract: 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: Application
    Filed: November 7, 2014
    Publication date: May 14, 2015
    Applicant: BASF SE
    Inventors: Josef Macht, Christian Walsdorff, Cornelia Katharina Dobner, Stefan Lipp, Cathrin Alexandra Welker-Nieuwoudt, Ulrich Hammon, Holger Borchert
  • Publication number: 20150045581
    Abstract: 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: Application
    Filed: March 28, 2013
    Publication date: February 12, 2015
    Inventors: Tomoatsu Kawano, Hideo Onodera
  • Publication number: 20140350282
    Abstract: 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: Application
    Filed: August 11, 2014
    Publication date: November 27, 2014
    Applicant: INEOS USA LLC
    Inventors: James Frank Brazdil, Charles James Besecker, Michael J. Seely, Muin S. Haddad, Mark A. Toft
  • Publication number: 20140350298
    Abstract: 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: Application
    Filed: August 23, 2012
    Publication date: November 27, 2014
    Applicant: Rohm And Haas Company
    Inventors: Scott Han, Edward C. Bayer, Andrew M. Lemonds, Daniel J. Martenak, Nelson I. Quiros
  • Patent number: 8841481
    Abstract: 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 b
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: September 23, 2014
    Assignee: Evonik Degussa GmbH
    Inventors: Horst-Werner Zanthoff, Nicole Brausch, Franz-Felix Kuppinger, Jorg Sauer, Andreas Sabbagh, Dennis Fruhling, Markus Weber, Oliver Becker
  • Publication number: 20140046093
    Abstract: 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: Application
    Filed: October 22, 2013
    Publication date: February 13, 2014
    Applicant: BASF SE
    Inventors: Martin DIETERLE, Klaus Joachim MUELLER-ENGEL
  • Patent number: 8598065
    Abstract: 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: Grant
    Filed: April 9, 2008
    Date of Patent: December 3, 2013
    Assignee: BASF SE
    Inventors: Martin Dieterle, Klaus Joachim Müller-Engel
  • Patent number: 8586786
    Abstract: 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: Grant
    Filed: July 23, 2012
    Date of Patent: November 19, 2013
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Naoki Miura, Eiichi Shiraishi, Koichi Nagai
  • Patent number: 8563774
    Abstract: 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: Grant
    Filed: March 15, 2013
    Date of Patent: October 22, 2013
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Masahide Kondo, Masanori Nitta, Hiroyuki Naitou, Toru Kuroda, Seiichi Kawato
  • Patent number: 8546295
    Abstract: 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: Grant
    Filed: January 17, 2008
    Date of Patent: October 1, 2013
    Assignee: BASF Aktiengesellschaft
    Inventors: Andreas Raichle, Frank Rosowski, Sabine Huber, Ulrich Cremer, Stefan Altwasser, Klaus Joachim Mueller-Engel
  • Publication number: 20130204030
    Abstract: 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: Application
    Filed: March 15, 2013
    Publication date: August 8, 2013
    Applicant: Mitsubishi Rayon Co., LTD.
    Inventor: Mitsubishi Rayon Co., LTD.
  • Publication number: 20130172615
    Abstract: 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: Application
    Filed: September 7, 2011
    Publication date: July 4, 2013
    Applicant: NIPPON SHOKUBAI CO., LTD.
    Inventors: Tomoatsu Kawano, Yutaka Takahashi, Naohiro Fukumoto
  • Patent number: 8404889
    Abstract: 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: Grant
    Filed: March 31, 2010
    Date of Patent: March 26, 2013
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Michio Tanimoto, Hideo Onodera
  • Patent number: 8389760
    Abstract: 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: Grant
    Filed: November 8, 2011
    Date of Patent: March 5, 2013
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Toshiya Yasukawa, Toshiki Matsui, Ken Ooyachi, Yoshiyuki Himeno, Wataru Ninomiya
  • Patent number: 8318631
    Abstract: 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: Grant
    Filed: February 28, 2008
    Date of Patent: November 27, 2012
    Assignee: BASF SE
    Inventors: Ulrich Cremer, Andreas Raichle, Frank Rosowski, Ulrich Hammon, Klaus Joachim Mueller-Engel
  • Publication number: 20120289741
    Abstract: 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: Application
    Filed: July 23, 2012
    Publication date: November 15, 2012
    Inventors: Naoki MIURA, Eiichi Shiraishi, Koichi Nagai
  • Patent number: 8247344
    Abstract: 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: Grant
    Filed: April 7, 2011
    Date of Patent: August 21, 2012
    Assignee: LG Chem, Ltd.
    Inventors: Hyun-Jong Shin, Byung-Yul Choi, Yeon-Shick Yoo, Young-Jin Cho
  • Publication number: 20120184771
    Abstract: 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: Application
    Filed: March 23, 2012
    Publication date: July 19, 2012
    Applicant: MITSUBISHI RAYON CO., LTD.
    Inventors: Masahide Kondo, Seiichi Kawato, Toru Kuroda
  • Patent number: 8173838
    Abstract: 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: Grant
    Filed: October 3, 2006
    Date of Patent: May 8, 2012
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Akio Takeda, Yuji Fujimori, Seiichi Kawato
  • Patent number: 8088946
    Abstract: 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: Grant
    Filed: November 14, 2005
    Date of Patent: January 3, 2012
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Yoshiyuki Himeno, Wataru Ninomiya, Ken Ooyachi
  • Patent number: 8088945
    Abstract: 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: Grant
    Filed: December 10, 2010
    Date of Patent: January 3, 2012
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Toshiya Yasukawa, Toshiki Matsui, Ken Ooyachi, Yoshiyuki Himeno, Wataru Ninomiya
  • Patent number: 8080493
    Abstract: 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: Grant
    Filed: February 26, 2008
    Date of Patent: December 20, 2011
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Elena Vladimirovna Chubarova, Ulrich Kortz
  • Patent number: 8080686
    Abstract: 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: Grant
    Filed: December 11, 2008
    Date of Patent: December 20, 2011
    Assignee: Rohm and Haas Company
    Inventors: Abraham Benderly, Nitin Chadda, Douglass Sevon
  • Patent number: 8058473
    Abstract: 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: Grant
    Filed: December 26, 2007
    Date of Patent: November 15, 2011
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Toshiki Matsui, Yoshiyuki Himeno, Kazunori Matake
  • Publication number: 20110245535
    Abstract: 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: Application
    Filed: April 7, 2011
    Publication date: October 6, 2011
    Inventors: Hyun-Jong SHIN, Byung-Yul Choi, Yeon-Shick Yoo, Young-Jin Cho
  • Patent number: 7994091
    Abstract: 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: Grant
    Filed: December 26, 2006
    Date of Patent: August 9, 2011
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Yoshiyuki Himeno, Ken Ooyachi, Toshiya Yasukawa
  • Publication number: 20110112325
    Abstract: 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: Application
    Filed: September 25, 2009
    Publication date: May 12, 2011
    Inventors: Michio Tanimoto, Nobuyuki Hakozaki
  • Patent number: 7880034
    Abstract: 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: Grant
    Filed: February 6, 2007
    Date of Patent: February 1, 2011
    Assignee: Arkema France
    Inventor: Jean-Luc Dubois
  • Publication number: 20100324326
    Abstract: 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: Application
    Filed: August 26, 2010
    Publication date: December 23, 2010
    Applicant: ExxonMobil Research and Engineering Company
    Inventors: Kun Wang, James C. Vartuli, Wilfried J. Mortier, Jihad M. Dakka, Robert C. Lemon
  • Patent number: 7820854
    Abstract: The present invention relates to an improved process for the conversion of alkanes to unsaturated carboxylic acids.
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: October 26, 2010
    Assignee: Rohm and Haas Company
    Inventors: Andrew Michael Lemonds, Eric Gustave Lundquist, Donald Lee Zolotorofe
  • Patent number: 7807853
    Abstract: 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: Grant
    Filed: December 4, 2006
    Date of Patent: October 5, 2010
    Assignee: BASF Aktiengesellschaft
    Inventors: Martin Dieterle, Armin Diefenbacher, Klaus Joachim Mueller-Engel, Jochen Petzoldt
  • Publication number: 20100234639
    Abstract: 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: Application
    Filed: December 26, 2006
    Publication date: September 16, 2010
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Yoshiyuki Himeno, Ken Ooyachi, Toshiya Yasukawa
  • Patent number: 7772442
    Abstract: 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: Grant
    Filed: March 31, 2009
    Date of Patent: August 10, 2010
    Assignee: 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
  • Patent number: 7642214
    Abstract: 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: Grant
    Filed: July 28, 2006
    Date of Patent: January 5, 2010
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Tomoaki Kobayashi, Yoshimasa Seo
  • Patent number: 7592483
    Abstract: 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: Grant
    Filed: May 18, 2005
    Date of Patent: September 22, 2009
    Assignee: BASF Aktiengesellschaft
    Inventors: Martin Dieterle, Armin Diefenbacher, Goetz-Peter Schindler, Catharina Klanner, Klaus Joachim Mueller-Engel, Christoph Adami
  • Patent number: 7579297
    Abstract: 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: Grant
    Filed: December 9, 2004
    Date of Patent: August 25, 2009
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Masahide Kondo, Hiroyuki Naitou, Toru Kuroda
  • Publication number: 20090156860
    Abstract: 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: Application
    Filed: February 19, 2009
    Publication date: June 18, 2009
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Yuji Fujimori, Wataru Ninomiya, Akio Takeda, Mai Kojima
  • Patent number: 7456313
    Abstract: 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: Grant
    Filed: December 28, 2006
    Date of Patent: November 25, 2008
    Assignee: Rohm and Haas Company
    Inventors: Andrew Michael Lemonds, Donald Lee Zolotorofe
  • Patent number: 7446223
    Abstract: 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: Grant
    Filed: June 2, 2005
    Date of Patent: November 4, 2008
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Wataru Ninomiya, Yoshiyuki Himeno, Yuji Fujimori
  • Patent number: 7439389
    Abstract: 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: Grant
    Filed: February 21, 2006
    Date of Patent: October 21, 2008
    Assignee: BASF Aktiengesellschaft
    Inventors: Martin Dieterle, Klaus Joachim Mueller-Engel, Jochen Petzoldt, Ulrich Hammon
  • Publication number: 20080177105
    Abstract: 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: Application
    Filed: January 17, 2008
    Publication date: July 24, 2008
    Applicant: BASF SE
    Inventors: Andreas Raichle, Frank Rosowski, Sabine Huber, Ulrich Cremer, Stefan Altwasser, Klaus Joachim Mueller-Engel
  • Patent number: 7388108
    Abstract: 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: Grant
    Filed: October 26, 2006
    Date of Patent: June 17, 2008
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Shuhei Yada, Yasushi Ogawa, Yoshiro Suzuki, Hirochika Hosaka, Yasuhiko Samura
  • Patent number: 7361622
    Abstract: 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: Grant
    Filed: November 8, 2005
    Date of Patent: April 22, 2008
    Assignee: Rohm and Haas Company
    Inventors: Abraham Benderly, Anne Mae Gaffney, Mark Anthony Silvano
  • Publication number: 20080004173
    Abstract: 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: Application
    Filed: June 27, 2007
    Publication date: January 3, 2008
    Inventors: Naoki Miura, Koichi Nagai, Noriaki Suyasu
  • Patent number: 7304176
    Abstract: 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: Grant
    Filed: May 13, 2004
    Date of Patent: December 4, 2007
    Assignee: Nippon Shokubai Co., Ltd.
    Inventor: Takeshi Nishimura