Patents by Inventor Ruprecht Meissner

Ruprecht Meissner 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).

  • Patent number: 7902411
    Abstract: The present invention relates to a catalyst composition for the oxychlorination of ethylene, comprising a mixture of metal salts on a support, where said metal salts are applied to the support in such ratios that the catalyst composition comprises a) from 3 to 12% by weight of copper as copper salt, b) from 0 to 3% by weight of an alkaline earth metal as alkaline earth metal salt, c) from 0 to 3% by weight of an alkaline metal as alkaline metal salt, d) from 0.001 to 0.1% by weight, preferably from 0.005 to 0.05% by weight, of at least one metal selected from the group consisting of ruthenium, rhodium, palladium, osmium, iridium and platinum, and/or from 0.0001 to 0.1% by weight, preferably from 0.001 to 0.05% by weight, of gold, as corresponding metal salt or tetrachloroauric acid, where all percentages by weight are based on the total weight of the catalyst including support material.
    Type: Grant
    Filed: August 7, 2006
    Date of Patent: March 8, 2011
    Assignee: BASF Catalysts LLC
    Inventors: Christian Kuhrs, Ruprecht Meissner
  • Publication number: 20060270879
    Abstract: The present invention relates to a catalyst composition for the oxychlorination of ethylene, comprising a mixture of metal salts on a support, where said metal salts are applied to the support in such ratios that the catalyst composition comprises a) from 3 to 12% by weight of copper as copper salt, b) from 0 to 3% by weight of an alkaline earth metal as alkaline earth metal salt, c) from 0 to 3% by weight of an alkaline metal as alkaline metal salt, d) from 0.001 to 0.1% by weight, preferably from 0.005 to 0.05% by weight, of at least one metal selected from the group consisting of ruthenium, rhodium, palladium, osmium, iridium and platinum, and/or from 0.0001 to 0.1% by weight, preferably from 0.001 to 0.05% by weight, of gold, as corresponding metal salt or tetrachloroauric acid, where all percentages by weight are based on the total weight of the catalyst including support material.
    Type: Application
    Filed: August 7, 2006
    Publication date: November 30, 2006
    Applicant: BASF Aktiengesellschaft
    Inventors: Christian Kuhrs, Ruprecht Meissner
  • Patent number: 7126035
    Abstract: The present invention relates to a catalyst composition for the oxychlorination of ethylene, comprising a mixture of metal salts on a support, where said metal salts are applied to the support in such ratios that the catalyst composition comprises a) from 3 to 12% by weight of copper as copper salt, b) from 0 to 3% by weight of an alkaline earth metal as alkaline earth metal salt, c) from 0 to 3% by weight of an alkaline metal as alkaline metal salt, d) from 0.001 to 0.1% by weight, preferably from 0.005 to 0.05% by weight, of at least one metal selected from the group consisting of ruthenium, rhodium, palladium, osmium, iridium and platinum, and/or from 0.0001 to 0.1% by weight, preferably from 0.001 to 0.05% by weight, of gold, as corresponding metal salt or tetrachloroauric acid, where all percentages by weight are based on the total weight of the catalyst including support material.
    Type: Grant
    Filed: February 4, 2003
    Date of Patent: October 24, 2006
    Assignee: BASF Aktiengesellschaft
    Inventors: Christian Kuhrs, Ruprecht Meissner
  • Publication number: 20050020864
    Abstract: The present invention relates to a catalyst composition for the oxychlorination of ethylene, comprising a mixture of metal salts on a support, where said metal salts are applied to the support in such ratios that the catalyst composition comprises a) from 3 to 12% by weight of copper as copper salt, b) from 0 to 3% by weight of an alkaline earth metal as alkaline earth metal salt, c) from 0 to 3% by weight of an alkaline metal as alkaline metal salt, d) from 0.001 to 0.1% by weight, preferably from 0.005 to 0.05% by weight, of at least one metal selected from the group consisting of ruthenium, rhodium, palladium, osmium, iridium and platinum, and/or from 0.0001 to 0.1% by weight, preferably from 0.001 to 0.05% by weight, of gold, as corresponding metal salt or tetrachloroauric acid, where all percentages by weight are based on the total weight of the catalyst including support material.
    Type: Application
    Filed: February 4, 2003
    Publication date: January 27, 2005
    Inventors: Christian Kuhrs, Ruprecht Meissner
  • Patent number: 6716789
    Abstract: The disclosure is directed to a process for preparing an oxidic catalyst comprising copper in an oxidation state >0, which comprises treating a solid oxidic support material with an aqueous solution comprising at least one copper salt and at least one organic water soluble polymer which binds copper ions coordinatively in a concentration of from 0.1 to 100 g/l and then calcining, to the catalyst obtainable by this process and also to a process for dehydrogenating secondary alcohols to ketones using the catalysts, especially for dehydrogenating cyclohexanol.
    Type: Grant
    Filed: June 21, 2000
    Date of Patent: April 6, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Daniel Heineke, Ruprecht Meissner, Michael Hesse, Henning-Peter Gehrken
  • Patent number: 6680416
    Abstract: A process for preparing 1,2-dichloroethane by reacting about 2 mols of ethylene, about 4 mols of hydrogen chloride and about 1 mol of oxygen in the presence of a fixed bed of supported catalyst based on copper(II) chloride in only one reaction zone at a pressure of from 2 to 10 bar and at from 220 to 280° C.
    Type: Grant
    Filed: September 11, 2000
    Date of Patent: January 20, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Werner Hebgen, Christopher William Rieker, Ruprecht Meissner
  • Patent number: 6518220
    Abstract: Shaped catalysts for heterogeneously catalyzed reactions are in the form of hollow cylinders or annular tablets whose end faces are rounded both to the outer edge and to the edge of the central hole, i.e. have no right-angled edges.
    Type: Grant
    Filed: February 14, 2001
    Date of Patent: February 11, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Christian Walsdorff, Otto Hofstadt, Raimund Felder, Ruprecht Meissner, Klaus Harth
  • Patent number: 6362384
    Abstract: A process for the preparation of 1,2-dichloroethane by oxychlorination of ethene in the presence of a copper-containing fixed-bed catalyst comprising a bed essentially consisting of catalyst particles which comprise, at least partially, support material impregnated with an active component and, if desired, a promoter, where the catalyst bed comprises essentially no separate inert material for dilution.
    Type: Grant
    Filed: January 17, 2001
    Date of Patent: March 26, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Ruprecht Meissner, Michael Hesse, Christian Walsdorff
  • Patent number: 6278033
    Abstract: A catalyst which contains, in its active composition, from 0.05 to 1.0% by weight of at least one metal or compound of a metal of the 10th group of the Periodic Table of the Elements and from 0.05 to 1.0% by weight of at least one metal or compound of a metal of the 11th group of the Periodic Table of the Elements, with the weight ratio of the metal of the 11th group to the metal of the 10th group being from 0.95 to 1.05, and, as support, an SiO2 -containing catalyst support having a BET surface area of from 2 to 400 m2/g, wherein at least 20% of the total pore volume of the catalyst is made up by pores having a diameter greater than 100 nanometers, can be used in processes for removing alkynes, dienes and/or monounsaturated hydrocarbons from streams of materials.
    Type: Grant
    Filed: November 30, 2000
    Date of Patent: August 21, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Klemens Flick, Ruprecht Meissner, Werner Hefner, Rainer Feser, Fabian Kunz
  • Patent number: 6204218
    Abstract: A catalyst comprising, in its active composition, from 0.05 to 1.0% by weight of at least one metal or compound of a metal of the 10th group of the Periodic Table of the Elements and from 0.05 to 1.0% by weight of at least one metal or compound of a metal of the 11th group of the Periodic Table of the Elements, with the weight ratio of the metal of the 11th group to the metal of the 10th group being from 0.95 to 1.05, and, as support, an SiO2-containing catalyst support having a BET surface area of from 2 to 400 m2/g, wherein at least 20% of the total pore volume of the catalyst is made up by pores having a diameter greater than 100 nanometers, can be used in processes for removing alkynes, dienes and/or monounsaturated hydrocarbons from streams of materials.
    Type: Grant
    Filed: August 30, 1999
    Date of Patent: March 20, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Klemens Flick, Ruprecht Meissner, Werner Hefner, Rainer Feser, Fabian Kunz
  • Patent number: 5736076
    Abstract: Moldings which comprise from 30 to 100% by weight of graphite, prepared from graphite powders which comprise from 5 to 100% by weight of rhombohedral crystalline graphite and, if required, contain additives and/or binders, and a process for their preparation and their use as catalyst carriers, heat transfer material, column packing or diluent in catalyst beds.
    Type: Grant
    Filed: August 22, 1995
    Date of Patent: April 7, 1998
    Assignee: BASF Aktiengesellschaft
    Inventors: Ruprecht Meissner, Matthias Irgang, Knut Eger, Peter Weidlich, Heinz Dreyer
  • Patent number: 4539309
    Abstract: Catalysts for the oxidation of sulfur dioxide to sulfur trioxide, consisting of a silica-based carrier and, applied on this, an active substance containing vanadium and alkali metal compounds, are prepared by dissolving vanadium pentoxide in an alkali solution, acidifying the solution with sulfuric acid, mixing the acidified solution with the carrier, molding the mixture and drying and calcining the molding. To obtain mechanically stable catalysts, a dissolved alkali metal silicate and/or silica sol are added to the alkaline solution before acidification, the latter process is carried out at below 35.degree. C. and the solution is then immediately incorporated into the carrier. The resulting moist crumbly material contains from 2 to 6% by weight of V.sub.2 O.sub.5, from 35 to 45% by weight of H.sub.2 O and from 15 to 50% by weight of SiO.sub.2. From 5 to 25% by weight of the total silica content originates from the dissolved alkali metal silicate and/or silica sol.
    Type: Grant
    Filed: June 25, 1984
    Date of Patent: September 3, 1985
    Assignee: BASF Aktiengesellschaft
    Inventors: Ruprecht Meissner, Norbert Neth