Patents by Inventor Jochen Petzoldt

Jochen Petzoldt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for producing multiple-phase multi-metal oxide materials
    Patent number: 6794539
    Abstract: In a process for preparing a multiplephase multimetal oxide composition comprising Mo, V, Cu and, if desired, further elements, at least one phase is preformed separately and dispersed in a plastically deformable precursor composition of a further phase. The mixture is dried and calcined. The multimetal oxide composition is suitable as active composition of catalysts for the catalytically oxidation of organic compounds in the gas phase, in particular for the oxidation of acrolein to acrylic acid.
    Type: Grant
    Filed: March 17, 2003
    Date of Patent: September 21, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Signe Unverricht, Raimund Felder, Heiko Arnold, Jochen Petzoldt
  • Method for producing methacrolein from isobutane
    Publication number: 20040171887
    Abstract: A process prepares methacrolein from isobutane by subjecting isobutane to a partial catalytic dehydrogenation in the gas phase and using the isobutenic product gas mixture to charge an oxidation zone in which the isobutene is oxidized to methacrolein in the gas phase with heterogeneous catalysis using molecular oxygen accompanied by molecular nitrogen as the oxygen source.
    Type: Application
    Filed: December 29, 2003
    Publication date: September 2, 2004
    Inventors: Silke Berndt, Klaus Joachim Muller-Engel, Gotz-Peter Schindler, Frank Rosowski, Jochen Petzoldt
  • Method for producing acrylic acid by heterogeneously catalyzed gas phase oxidation of propene with molecular oxygen in a reaction zone
    Publication number: 20040082810
    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: Application
    Filed: October 17, 2003
    Publication date: April 29, 2004
    Inventors: Frieder Borgmeier, Jochen Petzoldt, Hartmut Hibst, Andreas Tenten
  • Preparation of at least one partial oxidation and/or ammoxidation product of propylene
    Publication number: 20040063989
    Abstract: Process for preparing at least one partial oxidation and/or ammoxidation product of propylene, in which the propylene is produced from crude propane by dehydrogenation and is subjected to a heterogeneously catalyzed gas-phase partial oxidation and/or partial gas-phase ammoxidation in the presence of unreacted propane as constituent of a gas mixture 2 containing <1% by volume of 1-butene.
    Type: Application
    Filed: June 20, 2003
    Publication date: April 1, 2004
    Applicant: BASF Aktiengesellschaft
    Inventors: Claus Hechler, Gotz-Peter Schindler, Jochen Petzoldt, Christoph Adami, Otto Machhammer, Klaus Joachim Muller-Engel, Hans Martan
  • Preparation of at least one partial oxidation and/or ammoxidation product of propylene
    Publication number: 20040063988
    Abstract: In a process for preparing at least one partial oxidation and/or ammoxidation product of propylene, the propylene is obtained from crude propane by dehydrogenating and subjected in the presence of unconverted propane as a constituent of a gas mixture 2 which comprises a total C4-hydrocarbon content of ≦3% by volume to a heterogeneously catalyzed gas phase partial oxidation and/or partial gas phase ammoxidation.
    Type: Application
    Filed: June 20, 2003
    Publication date: April 1, 2004
    Applicant: BASF Aktiengesellschaft
    Inventors: Claus Hechler, Gotz-Peter Schindler, Jochen Petzoldt, Christoph Adami, Otto Machhammer, Klaus Joachim Muller-Engel, Hans Martan
  • Heterogenically catalysed gas-phase partial oxidation method for precursor compounds of (meth)acrylic acid
    Publication number: 20040054222
    Abstract: The invention relates to a method for the heterogenically catalysed gas-phase partial oxidation of precursor compounds of (meth)acrylic acid in a fixed catalyst bed, containing as the catalyst an activated mass of mixed oxide, shaped to form a geometric body. Said geometric body is a geometric base body, into whose surface a cavity is incorporated.
    Type: Application
    Filed: July 15, 2003
    Publication date: March 18, 2004
    Inventors: Raimund Felder, Signe Unverricht, Heiko Arnold, Jochen Petzoldt
  • Heterogeneously catalyzed gas-phase partial oxidation of at least one organic compound
    Publication number: 20040015013
    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: Application
    Filed: June 13, 2003
    Publication date: January 22, 2004
    Applicant: BASF Aktiengesellschaft
    Inventors: Ulrich Hammon, Jochen Petzoldt, Klaus Joachim Mueller-Engel, Martin Dieterle
  • Method for producing an annular shell catalyst and use thereof for producing acrolein
    Publication number: 20030187305
    Abstract: Coated catalysts which are suitable for the gas-phase catalytic oxidation of propene to acrolein are prepared by a process in which rings are used as supports and water is used as a binder.
    Type: Application
    Filed: April 10, 2003
    Publication date: October 2, 2003
    Inventors: Jochen Petzoldt, Signe Unverricht, Heiko Arnold
  • Method for producing multiple-phase multi-metal oxide materials
    Publication number: 20030181761
    Abstract: The invention relates to a method for producing a multiple-phase multi-metal oxide material that contains Mo, V, Cu and, optionally, other elements. According to the invention, at least one phase is separately pre-formed and is dispersed in a plastically deformable precursor material of another phase. The mixture is then dried and calcined. The multi-metal oxide material is suited for use as an active material of catalysts for catalytically oxidizing organic compounds in the gas phase, in particular, for oxidizing acrolein into acrylic acid.
    Type: Application
    Filed: March 17, 2003
    Publication date: September 25, 2003
    Inventors: Signe Unverricht, Raimund Felder, Heiko Arnold, Jochen Petzoldt