Group V Metal Containing Catalyst Utilized Patents (Class 562/547)
  • Patent number: 9365433
    Abstract: A method for the production of a nanocrystalline molybdenum mixed oxide, the use of the molybdenum mixed oxide as catalyst for chemical conversions, in particular for a conversion of acrolein to acrylic acid as well as a catalyst that contains the molybdenum mixed oxide.
    Type: Grant
    Filed: April 3, 2009
    Date of Patent: June 14, 2016
    Assignee: SUED-CHEMIE IP GMBH & CO. KG
    Inventors: Alfred Hagemeyer, Gerhard Mestl, Silvia Neumann, Hans-Jörg Wölk
  • Patent number: 9000207
    Abstract: A method for producing a silica-supported catalyst comprising Mo, V. Nb, and a component X (Sb and/or Te) to be used in a vapor phase catalytic oxidation or ammoxidation of proprane, comprising the steps of: (I) preparing a raw material mixture solution by mixing Mo, V, Nb, component X, a silica sol, and water; (II) obtaining a dry powder by drying the raw material mixture solution; and (III) obtaining a silica-supported catalyst by calcining the dry powder, wherein the silica sol contains 10 to 270 wt ppm of nitrate ions based on SiO2.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: April 7, 2015
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Yusuke Ishii, Takaaki Kato
  • Patent number: 8969618
    Abstract: A catalyst and a catalyst packing schedule are designed so that a relation between the raw material conversion rate at which the yield of the objective product becomes maximum and the raw material conversion rate at which a high and low correlation between maximum temperature of the catalyst layer present closest to a reaction gas inlet side Zin and maximum temperature of the catalyst layer present closest to a reaction gas outlet side Zout is reversed satisfies a specific condition of 0.5?Cmax?Ccrs?5, in which Cmax: a raw material conversion rate at which yield of the objective products becomes maximum; and Ccrs: a raw material conversion rate at which, when maximum temperature of the catalyst layer Zin is regarded as Tin, maximum temperature of the catalyst layer Zout is regarded as Tout, and the raw material conversion rate is changed, a high and low correlation between Tin and Tout is reversed.
    Type: Grant
    Filed: January 16, 2012
    Date of Patent: March 3, 2015
    Assignee: NipponKayaku Kabushiki Kaisha
    Inventors: Tatsuhiko Kurakami, Susumu Matsumoto, Atsushi Sudo, Kazuo Shiraishi, Masashi Hashiba
  • 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: 20130317238
    Abstract: The present disclosure generally relates to processes, apparatuses and custom catalysts designed to depolymerize a polymer. In one embodiment, the present invention relates to a de-polymerizing apparatus, catalysts and reaction schemes to obtain useful monomers including fuel products by “in situ” reactions using coupled electromagnetic induction.
    Type: Application
    Filed: December 8, 2011
    Publication date: November 28, 2013
    Inventors: Pravansu S. Mohanty, Swaminathan Ramesh
  • Patent number: 8575389
    Abstract: The invention relates to a continuous neutralization process in which at least one ethylenically unsaturated carboxylic acid is neutralized at least partly with a base and the temperature of the neutralized solution is less than 70° C., and also to an apparatus for carrying out the process.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: November 5, 2013
    Assignee: BASF SE
    Inventors: Matthias Weismantel, Michael de Marco, Dominicus van Esbroeck, Karl J. Possemiers, Ronny De Kaey
  • 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
  • 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: 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
  • 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
  • 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: 8013185
    Abstract: The present invention provides a method for preparing unsaturated aldehydes and/or unsaturated fatty acids from olefins using a fixed-bed catalytic partial oxidation reactor, in particular, a start-up method upon packing with catalysts and initiating the reaction, and a process for producing unsaturated aldehydes and/or unsaturated fatty acids with high yield.
    Type: Grant
    Filed: April 3, 2008
    Date of Patent: September 6, 2011
    Assignee: LG Chem, Ltd.
    Inventors: Jun-Seok Ko, Kyoung-Su Ha, Sung-Kyoo Park, Sung-Soo Park, Se-Won Baek, Dong-Hyun Woo, Seong-Jin Kim
  • Patent number: 7897813
    Abstract: Conventional gas-phase catalytic oxidation reaction apparatus comprising two reactors for production of acrylic acid is subject to problems of high equipment costs for the reactors and piping, necessity for wide installation area and easy accumulation of carbides generated by autoxidation of acrolein. On the other hand, conventional reaction apparatus comprising a single reactor has the drawbacks that the composition of gas in the first stage reaction and in the second stage reaction cannot be optimized independently of each other, and that the allowable concentration of starting propylene is limited because of the risk of explosion.
    Type: Grant
    Filed: July 17, 2007
    Date of Patent: March 1, 2011
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Michio Tanimoto, Daisuke Nakamura, 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
  • Patent number: 7880029
    Abstract: A method for dispersing polymerization by-products and maintaining said by-products in suspension in a hydrocarbon processing system during acrylic acid and acrylate monomer formation is disclosed, which includes adding to the monomer an effective inhibiting amount of an N-alkyl polyalkenyl succinimide dispersant.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: February 1, 2011
    Assignee: General Electric Company
    Inventors: John Link, Sherif Eldin
  • Publication number: 20100324331
    Abstract: The invention relates to mixed oxide catalysts made of hollow shapes for the catalytic gas phase oxidation of olefins, and to a method for producing the catalysts by applying them as a layer to a carrier made of organic material and removing said organic material. The reaction into aldehydes and carboxylic acids occurs by air or oxygen in the presence of inert gases in different quantity ratios, at elevated temperatures and pressure in the presence of said catalysts.
    Type: Application
    Filed: January 28, 2008
    Publication date: December 23, 2010
    Inventors: Achim Fischer, Werner Burkhardt, Stefan Röder, Klaus Huthmacher
  • 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: 20100152475
    Abstract: A process for producing geometric shaped catalyst bodies K whose active material is a multielement oxide which comprises the element Mo, the elements Bi and/or V and one or more of the elements Co, Ni, Fe, Cu and alkali metals, in which sources of the different elements are used to obtain a finely divided mixture which is coarsened to a powder by press agglomeration, the coarsened powder is used to form, by press agglomeration, shaped bodies V which are separated into undamaged shaped bodies V+ and into damaged shaped bodies V?, the undamaged shaped bodies V+ are converted by thermal treatment to the shaped catalyst bodies K, and the damaged shaped bodies V? are comminuted and recycled into the obtaining of the finely divided mixture.
    Type: Application
    Filed: December 9, 2009
    Publication date: June 17, 2010
    Applicant: BASF SE
    Inventors: Andreas Raichle, Holger Borchert, Klaus Joachim Müller-Engel, Catharina Horstmann, Josef Macht
  • Patent number: 7683213
    Abstract: The invention relates to a method for the production of acrylic acid from propane, in which a gas mixture comprising propane, water vapour and, optionally, an inert gas and/or molecular oxygen is passed over a catalyst, comprising a crystalline catalyst phase of formula (I) or (I?) TeaMolVbNbcOx (I) Sba Mol VbOy (I?), associated with a crystalline catalyst phase for activating the propane.
    Type: Grant
    Filed: May 25, 2004
    Date of Patent: March 23, 2010
    Assignee: Arkema
    Inventors: Jean-Luc Dubois, Manuel Baca, Jean-Marc Millet
  • Patent number: 7682702
    Abstract: A process for producing water-absorbing polymeric particles comprises the steps of i) drying a hydrogel to produce a dried hydrogel, ii) separating incompletely dried polymeric particles from the dried hydrogel, and iii) drying the separated-off incompletely dried polymeric particles, wherein the separated incompletely dried polymeric particles are comminuted before said drying iii).
    Type: Grant
    Filed: November 10, 2006
    Date of Patent: March 23, 2010
    Assignee: BASF SE
    Inventor: Meinhard Nitschke
  • Patent number: 7645897
    Abstract: A process for producing a high-performance catalyst for use in a reaction for acrylic acid production from propane or propylene through air oxidation, is provided. A process for producing a metal oxide catalyst having the following composition formula, the process comprising the following steps (1) and (2): MoViAjBkCxOy??Composition formula (wherein A is Te or Sb; B is at least one element selected from the group consisting of Nb, Ta, and Ti; C is Si or Ge; i and j each are 0.01-1.5 and j/i is from 0.3 to 1.0; k is 0.001-3.0; x is 0.002-0.
    Type: Grant
    Filed: July 13, 2005
    Date of Patent: January 12, 2010
    Inventors: Xinlin Tu, Naomasa Furuta, Yuuichi Sumida
  • 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
  • Patent number: 7557061
    Abstract: The present invention provides a method for producing a catalyst for use in synthesizing methacrylic acid which can produce methacrylic acid in high yield, the catalyst for use in synthesizing methacrylic acid which can produce methacrylic acid in high yield and a method for producing methacrylic acid in high yield through gas-phase catalytic oxidation of methacrolein with molecular oxygen. The method for producing the catalyst containing molybdenum and phosphorus for use in synthesizing methacrylic acid is composed of the steps of: preparing a slurry containing at least molybdenum and phosphorus and having specific viscosity in the range of 2.5×10?4 to 7.0×10?4 m2/s, which is a value obtained by dividing viscosity (unit: kg/(m·s)) by specific gravity (unit: kg/m3); obtaining a dried material by drying the slurry; and calcining the dried material at 300 to 500° C.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: July 7, 2009
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Tomoki Fukui, Hiroyuki Naitou, Tomomichi Hino
  • Patent number: 7488845
    Abstract: A method for the safe operation of a continuously operated heterogeneously catalyzed gas-phase partial oxidation of an organic compound in a reactor, the composition of the feed gas mixture being controlled by pressure-controlled concentration determination of relevant constituents.
    Type: Grant
    Filed: November 1, 2006
    Date of Patent: February 10, 2009
    Assignee: BASF Aktiengesellschaft
    Inventors: Claus Hechler, Peter Schlemmer
  • Publication number: 20090030224
    Abstract: A process fro producing fro producing a high-performance catalyst for use in a reaction for acrylic acid production from propane or propylene through air oxidation, is provided. A process for producing a metal oxide catalyst having the following composition formula, the process comprising the following steps (1) and (2): Composition formula MoViAjBkCxOy (wherein A is Te or Sb; B is at least one element selected from the group consisting of Nb, Ta, and Ti; C is Si or Ge; i and j each are 0.01-1.5 and j/i is from 0.3 to 1.0; k is 0.001-3.0; x is 0.002-0.
    Type: Application
    Filed: July 13, 2005
    Publication date: January 29, 2009
    Applicant: TOAGOSEI CO., LTD.
    Inventors: Xinlin Tu, Naomasa Furuta, Yuuichi Sumida
  • 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: 7365228
    Abstract: Disclosed is a method for producing unsaturated fatty acids from unsaturated aldehydes by means of fixed-bed catalytic partial oxidation in a shell-and-tube reactor, characterized in that the reactor includes a reaction zone for producing unsaturated fatty acids, the reaction zone having an inactive material layer inserted into a position where a hot spot is to be generated in a reaction tube. A fixed-bed shell-and-tube reactor for use in the above method is also disclosed. According to the present invention, at least one layer of inactive material is packed at the point of a hot spot to control the hot spot temperature efficiently, thereby increasing the lifetime of a catalyst and producing unsaturated fatty acids with high yield.
    Type: Grant
    Filed: February 1, 2006
    Date of Patent: April 29, 2008
    Assignee: LG Chem, Ltd.
    Inventors: Hyun Jong Shin, Byung Yul Choi, Young Jin Cho, Yeon Shick Yoo, Young Hyun Choi, Duk Ki Kim, Joo Yeon Park
  • 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
  • Patent number: 7304180
    Abstract: The invention relates to a process for producing a metal oxide catalyst capable of producing acrylic acid, acrylonitrile or the like in one stage by catalytic oxidation reaction of propane in a high yield. The invention is characterized by using one obtained by finely ground metallic Te or metallic Sb in water or an organic solvent as a raw material for the production of an oxide catalyst made of metal elements Mo—V—Nb—Te or metal elements Mo—V—Nb—Sb. The powder of the metallic Te or metallic Sb obtained by grinding preferably has a mode size of not more than 20 ?m. By using the metal oxide obtained by the invention as a catalyst, it is possible to produce acrylic acid in a high yield of 35% or more from propane by a one-stage oxidation reaction.
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: December 4, 2007
    Assignee: Toagosei Co., Ltd.
    Inventors: Xinlin Tu, Yuuichi Sumida, Mamoru Takahashi, Hiroshi Niizuma
  • Patent number: 7294741
    Abstract: The present invention relates to a process for the production of acrylic acid (AA) comprising the steps wherein: a) a 1st gas mixture comprising propylene, oxygen, an inert gas and steam is subjected to a 1st catalytic oxidation reaction stage thereby converting the propylene in the presence of a catalyst mainly into acrolein being contained in a 2nd gas mixture from said 1st catalytic oxidation reaction, b) said 2nd gas mixture from the 1st catalytic oxidation reaction stage is subjected to a 2nd catalytic oxidation reaction stage thereby converting the acrolein in the presence of a catalyst mainly into AA, being contained in a product gas, c) said product gas is subjected to a quench tower, wherein said AA is recovered as an aqueous solution comprising said AA being contained in the process water, wherein a process vent gas is obtained at the top of said quench tower, wherein, said 1st gas mixture has a steam/propylene ratio of >0.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: November 13, 2007
    Assignee: Stockhausen GmbH
    Inventors: Gunther Bub, Jurgen Mosler, Dietrich Maschmeyer, Andreas Sabbagh, Roland Fornika, Matthias Peuckert
  • Patent number: 7279442
    Abstract: A process for producing a catalyst which has a high mechanical strength and is capable of producing an unsaturated aldehyde and an unsaturated carboxylic acid constantly over a long period of time and in good yield; and, a method for producing an unsaturated aldehyde or carboxylic acid from catalytic oxidation of an olefin, a tertiary butyl alcohol, or a methyl tertiary butyl ether substrate with a gas that contains molecular oxygen and the produced catalyst.
    Type: Grant
    Filed: January 12, 2005
    Date of Patent: October 9, 2007
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Isao Teshigahara, Nariyasu Kanuka, Kazuharu Tazawa
  • Patent number: 7265250
    Abstract: Disclosed is a method for producing unsaturated aldehydes or unsaturated fatty acids from at least one compound selected from the group consisting of propylene, propane, (meth)acrolein, isobutylene, t-butyl alcohol, methyl-t-butyl ether and o-xylene by means of fixed-bed catalytic partial oxidation in a shell-and-tube reactor, characterized in that the reactor includes a reaction zone for producing unsaturated aldehydes as a main product, the reaction zone having an inactive material layer inserted into a position where a hot spot is to be generated in a reaction tube. A fixed-bed shell-and-tube reactor for use in the above method is also disclosed. According to the present invention, at least one layer of inactive material is packed at the point of a hot spot to control the hot spot temperature efficiently, thereby increasing the lifetime of a catalyst and producing unsaturated aldehydes and unsaturated fatty acids with high yield.
    Type: Grant
    Filed: December 23, 2004
    Date of Patent: September 4, 2007
    Assignee: LG Chem, Ltd.
    Inventors: Hyun Jong Shin, Yeon Shick Yoo, Byung Yul Choi, Young Hyun Choi, Young Jin Cho, Duk Ki Kim, Joo Yeon Park, Kwang Ho Park
  • Patent number: 7253311
    Abstract: Acrylic acid is prepared from propene by means of gas-phase oxidation by a process in which a starting gas mixture which contains propene and steam and whose molar propene/steam ratio is ?1 and whose propane content is ?5% is passed at elevated temperatures through a fixed catalyst bed comprising successive catalyst part-beds A and B, the part-bed A passed through first containing, as active material, a mixed oxide containing the elements Mo, Bi and Fe and the part-bed B containing, as active material, a mixed oxide containing the elements Mo and V, in a manner such that at least 96.5 mol % of propene are converted in a single pass through part-bed A.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: August 7, 2007
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerhard Nestler, Juergen Schroeder
  • Publication number: 20070161812
    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: Application
    Filed: December 28, 2006
    Publication date: July 12, 2007
    Inventors: Andrew Michael Lemonds, Donald Lee Zolotorofe
  • Patent number: 7164039
    Abstract: In a process for heterogeneously catalyzed partial gas phase oxidation of propene to acrylic acid, the propene-containing starting reaction gas mixture is oxidized in a first reaction stage using a fixed catalyst bed 1 which consists of a plurality of fixed catalyst bed zones and is accommodated in two successive temperature zones A, B, and the acrolein-containing product gas mixture of the first reaction stage is then oxidized in a second reaction stage using a fixed catalyst bed 2 which consists of a plurality of fixed catalyst bed zones and is accommodated in two successive temperature zones C, D, and the transition from one temperature zone to another temperature zone within one reaction stage does not spatially coincide with a transition from one fixed catalyst bed zone to another fixed catalyst bed zone.
    Type: Grant
    Filed: March 25, 2004
    Date of Patent: January 16, 2007
    Assignee: BASF Aktiengesellschaft
    Inventors: Jochen Petzoldt, Martin Dieterle, Heiko Arnold, Wilhelm Ruppel, Klaus Joachim Mueller-Engel
  • Patent number: 7132092
    Abstract: A metallized mesoporous silicate which is obtained by (i) reacting (a) either a metal peroxide obtained by the reaction of an aqueous hydrogen peroxide solution with at least one metal or metal compound selected from the group consisting of the following 1) to 4) 1) tungsten 2) molybdenum 3) vanadium 4) compounds comprising 4a) any of tungsten, molybdenum, and vanadium and 4b) at least one element selected from Groups 13 to 16 (excluding oxygen) or a solution of the metal peroxide with (b) a silicon compound in the presence of an alkylamine or a quaternary ammonium salt and separating the resultant silicate; and a process for producing the metallized mesoporous silicate. Also provided is a method of organic synthesis with the silicate.
    Type: Grant
    Filed: February 5, 2003
    Date of Patent: November 7, 2006
    Assignee: Sumitomo Chemical Company, Limited
    Inventor: Koji Hagiya
  • Patent number: 7132384
    Abstract: A process for producing a composite oxide catalyst to be used for gas phase oxidation of an olefin or unsaturated aldehyde with molecular oxygen to produce the corresponding unsaturated aldehyde and/or unsaturated carboxylic acid, which has a uniform constant high performance, in an industrial scale and efficiently and constantly, is presented. The process comprises a step of molding a catalyst component-containing powder and a step of calcining a molded product obtained in the molding step, wherein the molding step is a step wherein graphite particles having an average particle diameter D50 of from 10 to 50 ?m and having a combustion initiating temperature in a differential thermogravimetric analysis higher by at least 50° C. than the calcination temperature in the next calcination step, are added to the catalyst component-containing powder in an amount of from 0.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: November 7, 2006
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Isao Teshigahara, Nariyasu Kanuka
  • Patent number: 7115776
    Abstract: A process for the heterogeneously catalyzed gas-phase partial oxidation of an organic compound over a fixed catalyst bed present in a fixed-bed reactor having a plurality of catalyst tubes, in which the reduction of the quality of the catalyst load with increasing duration of operation is restored by a partial catalyst change, is described.
    Type: Grant
    Filed: June 13, 2003
    Date of Patent: October 3, 2006
    Assignee: BASF Aktiengesellschaft
    Inventors: Ulrich Hammon, Jochen Petzoldt, Klaus Joachim Müller-Engel, Martin Dieterle
  • Patent number: 7102030
    Abstract: A method for managing the operation of an apparatus for the reaction of gas phase partial oxidation of an unsaturated hydrocarbon with a molecular oxygen-containing gas for the purpose of omitting wasteful emergency stop of the operation and ensuring execution of necessary emergency measure and a method for producing (meth) acrylic acid by utilizing the method mentioned above are provided. The operation of the apparatus is brought to emergency stop exclusively when thee values of concentrations of various gases obtained by calculation from the flow rates of the gases being introduced at the inlet port of the reactor and the measured values obtained by analysis with gas analyzing instruments both deviate from the ranges of the present values.
    Type: Grant
    Filed: March 9, 2004
    Date of Patent: September 5, 2006
    Assignee: Nippon Shokubai, Co., LTD
    Inventors: Kenji Sanada, Yukihiro Matsumoto, Takeshi Nishimura, Harunori Hirao
  • Patent number: 7074956
    Abstract: Hydrothermally synthesized catalysts comprising a mixed metal oxide are utilized to produce unsaturated carboxylic acids by the vapor phase oxidation of an alkane, or a mixture of an alkane and an alkene, in the presence thereof; or to produce unsaturated nitriles by the vapor phase oxidation of an alkane, or a mixture of an alkane and an alkene, and ammonia in the presence thereof.
    Type: Grant
    Filed: March 23, 2004
    Date of Patent: July 11, 2006
    Assignee: Rohm and Haas Company
    Inventors: Anne Mae Gaffney, Ruozhi Song
  • Patent number: 7067696
    Abstract: In the process for producing (meth)acrolein or (meth)acrylic acid, which comprises feeding a raw material of the (meth)acrolein or (meth)acrylic acid, and a molecular oxygen-containing gas mixed with a diluting gas and compressed by a compressor, to an oxidation reactor to conduct a catalytic gas-phase oxidation reaction therebetween; feeding the obtained reaction gas to an absorption column to contact with water; recovering an aqueous solution of the (meth)acrolein or (meth)acrylic acid from a bottom of the absorption column and an exhaust gas from a top of the absorption column; and recycling a part or whole of the thus recovered exhaust gas to use as the diluting gas, the temperature of the mixed gas at a suction inlet of the compressor is controlled to a temperature higher than a dew point thereof. According to the process of the present invention, the compressor is prevented from suffering from clogging or damage thereto.
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: June 27, 2006
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Yasuyuki Sakakura, Shuhei Yada, Hirochika Hosaka, Yasushi Ogawa, Yoshiro Suzuki
  • Patent number: 7026506
    Abstract: In a process for the preparation of acrylic acid by heterogeneously catalyzed gas-phase oxidation of propene with molecular oxygen in a reaction zone, the catalytically active material is a multimetal oxide which contains the elements Mo, V, Te and/or Sb and has a specific structure.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: April 11, 2006
    Assignee: BASF Aktiengesellschaft
    Inventors: Frieder Borgmeier, Jochen Petzoldt, Hartmut Hibst, Andreas Tenten
  • Patent number: 7015354
    Abstract: A process for preparing (meth)acrolein and/or (meth)acrylic acid by heterogeneously catalyzed gas phase partial oxidation of an organic precursor compound over a fresh fixed catalyst bed, in which the process is started up at a reduced hourly space velocity of charging gas mixture on the fixed catalyst bed.
    Type: Grant
    Filed: August 13, 2004
    Date of Patent: March 21, 2006
    Assignee: BASF Aktiengesellschaft
    Inventors: Jochen Petzoldt, Signe Unverricht, Heiko Arnold, Klaus Joachim Müller-Engel, Martin Dieterle
  • Patent number: 7012157
    Abstract: A process for preparing (meth)acrylic acid, in which a saturated hydrocarbon precursor compound is conducted through a catalyst charge which consists of two spatially successive catalyst beds I, II in the flow direction of the reaction mixture, each of which contains different catalysts and has different reaction-selectivity behavior.
    Type: Grant
    Filed: September 7, 2004
    Date of Patent: March 14, 2006
    Assignee: BASF Aktiengesellschaft
    Inventors: Frieder Borgmeier, Frank Rosowski, Hans Martan, Klaus Joachim Müller-Engel
  • Patent number: 7012039
    Abstract: An oxide catalyst composition for use in producing methacrolein or a mixture of methacrolein and methacrylic acid, wherein the oxide catalyst composition is represented by the formula (Mo+W)l2BiaAbBcFedXeSbfOg, wherein: A is at least one member selected from the group consisting of Y and the elements of the lanthanoid series exclusive of Pm; B is at least one member selected from the group consisting of K, Rb and Cs; X is Co solely, or a mixture of Co and at least one member selected from the group consisting of Mg and Ni; and a, b, c, d, e, f and g are, respectively, the atomic ratios of Bi, A, B, Fe, X, Sb and O, relative to twelve atoms of the total of Mo and W, wherein the atomic ratios (a to f) of the elements and the relationship between the amounts of the elements are chosen so as to satisfy specific requirements.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: March 14, 2006
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Toru Watanabe, Osamu Nagano
  • Patent number: 6982343
    Abstract: A catalyst comprising a mixed metal oxide is useful for the vapor phase oxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated nitrile. The catalyst is treated with a source of hydrogen, an alcohol, a source of NOx or a mixture thereof.
    Type: Grant
    Filed: October 17, 2002
    Date of Patent: January 3, 2006
    Assignee: Rohm and Haas Company
    Inventors: Sanjay Chaturvedi, Anne Mae Gaffney, Dominique Hung Nhu Le
  • Patent number: RE39074
    Abstract: 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 comprising the elements Mo, Pd, X and Y in gram atom ratios a:b:c:d in combination with oxygen MoaPdbXcYd??(I) where the symbols X and Y have the following meanings: X is one or more elements selected from the group consisting of: Cr, Mn, Nb, Ta, Ti, V, Te and/or W, in particular Nb, V and W; Y is one or more elements selected from the group consisting of: B, Al, Ga, In, Pt, Zn, Cd, Bi, Ce, Co, Cu, Rh, Ir, Au, Ag, Fe, Ru, Os, K, Rb, Cs, Mg, Ca, Sr, Ba, Zr, Hf, Ni, P, Pb, Sb, Si, Sn, TI and U, in particular Ca, Sb, Te and Li. The present invention further provides a catalyst for the selective preparation of acetic acid comprising the elements Mo, Pd, X and Y in the gram atom ratios a:b:c:d in combination with oxygen.
    Type: Grant
    Filed: July 16, 1997
    Date of Patent: April 18, 2006
    Assignee: Celanese Chemicals Europe GmbH
    Inventors: Holger Borchert, Uwe Dingerdissen