Patents by Inventor Aurel Wolf

Aurel Wolf 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).

  • PROCESS FOR THE PRODUCTION OF CHLORINE USING A CERIUM OXIDE CATALYST IN AN ISOTHERMIC REACTOR
    Publication number: 20140241976
    Abstract: A process for the production of chlorine by thermo-catalytic gas phase oxidation of hydrogen chloride gas with oxygen, in the presence of a catalyst, and separation of the chlorine from the reaction products comprising chlorine, hydrogen chloride, oxygen and water, characterized in that a) a cerium oxide is used as catalytically active component in the catalyst and b) the reaction gases are converted at the cerium oxide catalyst in one or more isothermic reaction zones, preferably in one or more tube bundle reactors, wherein the molar O2/HCl-ratio is equal or above 0.75 in any part of the cerium oxide containing reaction zones.
    Type: Application
    Filed: July 2, 2012
    Publication date: August 28, 2014
    Inventors: Timm Schmidt, Aurel Wolf, Oliver Felix-Karl Schlüter, Thomas Westermann, Cecilia Mondelli, Javier Perez-Ramirez, Hary Soerijanto, Reinhard Schomäcker, Detre Tescher, Robert Schlögl
  • PROCESS FOR THE PRODUCTION OF CHLORINE USING A CERIUM OXIDE CATALYST IN AN ADIABATIC REACTION CASCADE
    Publication number: 20140205533
    Abstract: A process for the production of chlorine by thermo-catalytic gas phase oxidation of hydrogen chloride and oxygen is described, the process comprising at least (1) a cerium oxide catalyst and (2) an adiabatic reaction cascade, containing at least two adiabatic stages connected in series with intermediate cooling, wherein the molar O2/HCl-ratio is equal or above 0.75 in any part of the cerium oxide catalyst beds.
    Type: Application
    Filed: July 2, 2012
    Publication date: July 24, 2014
    Applicant: BAYER INTELLECTUAL PROPERTY GMBH
    Inventors: Timm Schmidt, Aurel Wolf, Oliver Felix-Karl Schlüter, Thomas Westermann, Cecilia Mondelli, Javier Perez-Ramirez, Hary Soerijanto, Reinhard Schomäcker, Detre Teschner, Robert Schlögl
  • Electrolysis cell for hydrogen chloride electrolysis
    Patent number: 8778148
    Abstract: Apparatus for hydrogen chloride electrolysis, comprising a cathode that has a layer of nitrogen-doped carbon nanotubes having functional groups containing nitrogen.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: July 15, 2014
    Assignee: Bayer Intellectual Property GmbH
    Inventors: Aurel Wolf, Leslaw Mleczko, Volker Michele, Jens Assmann, Jürgen Kintrup, Rainer Weber
  • Process for the reduction of oxygen
    Patent number: 8741122
    Abstract: Process for the reduction of oxygen in aqueous chlorine- and/or chloride-containing solutions in the presence of a catalyst comprising nitrogen-doped carbon nanotubes.
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: June 3, 2014
    Assignee: Bayer Intellectual Property GmbH
    Inventors: Aurel Wolf, Volker Michele, Leslaw Mleczko, Jens Assmann
  • Catalyst and process for hydrogenating organic compounds
    Patent number: 8614355
    Abstract: The invention relates to a catalyst and to a process for hydrogenating organic compounds. In particular, the invention is directed to a process and catalyst for hydrogenating organic compounds with hydrogen. The organic compounds are subjected to hydrogenation in the presence of a catalyst comprising nitrogen-doped carbon nanotubes as a catalytically active component, wherein the proportion of nitrogen in the nanotubes is in the range of from about 0.05 to 20 wt. %.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: December 24, 2013
    Assignee: Bayer Technology Services GmbH
    Inventors: Aurel Wolf, Volker Michele, Jens Aβmann, Leslaw Mleczko
  • Carbon nanotubes and organic media containing microgels
    Patent number: 8592512
    Abstract: The invention relates to a composition containing at least one microgel, at least one carbon nanotube and at least one organic medium. Said organic medium can be cross-linked or non cross-linked.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: November 26, 2013
    Assignees: Lanxess Deutschland GmbH, Bayer MaterialScience AG
    Inventors: Torsten Ziser, Thomas Früh, Werner Obrecht, Reiner Rudolf, Sigurd Buchholz, Volker Michele, Leslaw Mleczko, Christian Münnich, Aurel Wolf, Daniel Gordon Duff
  • CATALYST AND METHOD FOR THE PRODUCTION OF CHLORINE BY GAS PHASE OXIDATION
    Publication number: 20130216470
    Abstract: The present invention relates to a catalyst for preparation of chlorine by catalytic gas phase oxidation of hydrogen chloride with oxygen, in which the catalyst comprises calcined tin dioxide as a support and at least one halogen-containing ruthenium compound, and to the use thereof.
    Type: Application
    Filed: August 22, 2011
    Publication date: August 22, 2013
    Applicant: Bayer Intellectual Property GmbH
    Inventors: Aurel Wolf, Leslaw Mleczko, Oliver Felix-Karl Schlüter
  • PROCESS FOR THE PRODUCTION OF POLYETHER CARBONATE POLYOLS
    Publication number: 20130211042
    Abstract: The present invention relates to a process for the production of polyether carbonate polyols from one or more H-functional starter substances, one or more alkylene oxides (epoxides) and carbon dioxide in the presence of at least one double metal cyanide catalyst, wherein the production of the polyether carbonate polyols is carried out in a tubular reactor.
    Type: Application
    Filed: October 11, 2011
    Publication date: August 15, 2013
    Applicant: Bayer Intellectual Property GmbH
    Inventors: Christoph Gürtler, Stefan Grasser, Aurel Wolf
  • Method for producing diphenylcarbonate having catalyst comprising ionic fluids
    Patent number: 8507712
    Abstract: The invention relates to a method for producing diphenylcarbonate while using a catalyst composition comprising ionic fluids.
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: August 13, 2013
    Assignee: Bayer Technology Services GmbH
    Inventors: Alexandra Groβe Böwing, Aurel Wolf, Kilian Tellmann, Leslaw Mleczko
  • PROCESS FOR PREPARING POLYETHER CARBONATE POLYOLS WITH DOUBLE METAL CYANIDE CATALYSTS AND IN THE PRESENCE OF METAL SALTS
    Publication number: 20130190462
    Abstract: The present invention relates to a process for the preparation of polyether carbonate polyols by catalytic copolymerisation of carbon dioxide (CO2) with alkylene oxides in the presence of one or more H-functional starter substances with the aid of double metal cyanide (DMC) catalysts and in the presence of metal salts.
    Type: Application
    Filed: February 17, 2011
    Publication date: July 25, 2013
    Applicant: Bayer Intellectual Property GmbH
    Inventors: Aurel Wolf, Stefan Grasser, Christoph Gürtler, Jörg Hofmann
  • PROCESS FOR THE PREPARATION OF POLYETHER CARBONATE POLYOLS
    Publication number: 20130184432
    Abstract: The present invention relates to a process for the preparation of polyether carbonate polyols from one or more alkylene oxides, carbon dioxide and optionally from one or more H-functional starter substances in the presence of at least one double metal cyanide catalyst, wherein the double metal cyanide catalyst comprises an unsaturated alcohol as a complexing ligand.
    Type: Application
    Filed: September 6, 2011
    Publication date: July 18, 2013
    Applicant: Bayer Intellectual Property GmbH
    Inventors: Christoph Gürtler, Jörg Hofmann, Aurel Wolf, Stefan Grasser
  • CATALYST AND METHOD FOR THE PRODUCTION OF CHLORINE BY GAS PHASE OXIDATION
    Publication number: 20130177494
    Abstract: The present invention relates to a catalyst for preparation of chlorine by catalytic gas phase oxidation of hydrogen chloride with oxygen, in which the catalyst comprises at least tin dioxide as a support material and at least one ruthenium-containing compound as a catalytically active material, and comprises, as an additional secondary constituent, a compound of an element or an element selected from the group of: Nb, V, Ta, Cr, Mo, Au, In, Sc, Y and lanthanoids, especially La and Ce.
    Type: Application
    Filed: August 22, 2011
    Publication date: July 11, 2013
    Applicant: Bayer Intellectual Property GmbH
    Inventors: Aurel Wolf, Leslaw Mleczko, Oliver Felix-Karl Schlüter
  • METHOD FOR PRODUCING POLYETHER CARBONATE POLYOLS
    Publication number: 20130123532
    Abstract: The present invention relates to a process for the preparation of polyether carbonate polyols from one or more H-functional starter substances, one or more alkylene oxides and carbon dioxide in the presence of at least one double metal cyanide catalyst, wherein the cyanide-free metal salt, the metal cyanide salt or both the mentioned salts used for the preparation of the double metal cyanide catalyst contain(s) from 0.3 to 1.8 mol base equivalents (based on 1 mol of the metal cyanide salt used for the synthesis of the catalyst) of alkaline metal hydroxide, metal carbonate and/or metal oxide.
    Type: Application
    Filed: May 13, 2011
    Publication date: May 16, 2013
    Applicant: Bayer Intellectual Property GmbH
    Inventors: Christoph Gürtler, Jörg Hofmann, Aurel Wolf, Stefan Grasser
  • PROCESS FOR THE PREPARATION OF POLYETHER CARBONATE POLYOLS
    Publication number: 20130072602
    Abstract: The present invention relates to a process for the preparation of polyether carbonate polyols by catalytic copolymerization of carbon dioxide (CO2) with alkylene oxides in the presence of one or more H-functional starter substances with the aid of double metal cyanide (DMC) catalysts and in the presence of additives A) chosen from the group consisting of sterically non-hindered phenols, catechols, pyrocatechols, thiazines, phenothiazines, thiazoles, benzothiazoles, oxazines, phenoxazines, 2,2,6,6-tetramethylpiperidine 1-oxyl and nitrostyrenes and optionally in the presence of metal salts B).
    Type: Application
    Filed: March 24, 2011
    Publication date: March 21, 2013
    Applicant: BAYER INTELLECTUAL PROPERTY GMBH
    Inventors: Christoph Gürtler, Jörg Hofmann, Thomas Ernst Müller, Aurel Wolf, Stefan Grasser, Burkhard Köhler
  • Carbon nanotube powder, carbon nanotubes, and processes for their production
    Patent number: 8398949
    Abstract: A novel carbon nanotube powder containing carbon nanotubes which have a roll-like structure, also novel carbon nanotubes having a roll-like structure, novel processes for the production of the carbon nanotube powders and of the carbon nanotubes, and their use as an additive or substrate for various applications are described.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: March 19, 2013
    Assignee: Bayer MaterialScience AG
    Inventors: Helmut Meyer, Heiko Hocke, Ralph Weber, Martin Schmid, Elmar Bramer-Weger, Matthias Voetz, Leslaw Mleczko, Reiner Rudolf, Aurel Wolf, Sigurd Buchholz
  • BIMETALLIC COMPLEXES AND THE USE THEREOF IN PRODUCING DIARYL CARBONATE
    Publication number: 20130018186
    Abstract: The invention relates to bimetallic complexes in which the ligand contains a salophen unit which complexes copper, manganese or cobalt and a phenanthroline unit which complexes palladium and the two systems are linked by a continuous conjugated system. The invention further relates to the use of these bimetallic complexes as catalysts for the oxidative carbonylation of aromatic hydroxy compounds to form diaryl carbonates, a process for preparing diaryl carbonates using the bimetallic complex as catalyst and also diaryl carbonates prepared by oxidative carbonylation of aromatic hydroxy compounds using the bimetallic complexes of the invention as catalysts.
    Type: Application
    Filed: December 9, 2010
    Publication date: January 17, 2013
    Applicant: Bayer Intellectual Property GmbH
    Inventors: Christoph Gürtler, Thomas Ernst Müller, Pieter Ooms, Johann Rechner, Friedhelm Risse, Angelina Prokofieva, Franco Doro, Burkhard Köhler, Walter Leitner, Aurel Wolf
  • PROCESS FOR THE ACTIVATION OF DOUBLE METAL CYANIDE CATALYSTS FOR THE PREPARATION OF POLYETHER CARBONATE POLYOLS
    Publication number: 20120289732
    Abstract: The present invention relates to a process for the activation of double metal cyanide (DMC) catalysts for the preparation of polyether carbonate polyols by catalytic copolymerisation of carbon dioxide (CO2) with alkylene oxides in the presence of one or more H-functional starter substances.
    Type: Application
    Filed: January 18, 2011
    Publication date: November 15, 2012
    Applicant: Bayer Intellectual Property GmbH
    Inventors: Christoph Gürtler, Stefan Grasser, Jörg Hofmann, Aurel Wolf
  • METHOD FOR PRODUCING GRAPHENE SOLUTIONS, GRAPHENE ALKALI METAL SALTS, AND GRAPHENE COMPOSITE MATERIALS
    Publication number: 20120256121
    Abstract: The present invention relates to a process for preparing graphene solutions by means of alkali metal salts, to graphene solutions, to processes for preparing graphene alkali metal salts, to graphene alkali metal salts and to graphene composite materials and to processes for producing the graphene composite materials.
    Type: Application
    Filed: November 8, 2010
    Publication date: October 11, 2012
    Applicant: BAYER TECHNOLOGY SERVICES GMBH
    Inventors: Aurel Wolf, Giulio Lolli, Leslaw Mleczko, Oliver Felix-Karl Schluter
  • NITROGEN DOPED CARBON NANOTUBES WITH METAL NANOPARTICLES
    Publication number: 20120252662
    Abstract: The invention relates to nitrogen-doped carbon nanotubes (NCNT), the surface of which is charged with metal nanoparticles, and to a method for the production thereof and use thereof as a catalyst.
    Type: Application
    Filed: December 14, 2010
    Publication date: October 4, 2012
    Applicant: BAYER INTELLECTUAL PROPERTY GMBH
    Inventors: Jens Assmann, Aurel Wolf, Leslaw Mleczko, Oliver Felix-Karl Schlueter
  • COMPOSITE MATERIALS HAVING GRAPHENE LAYERS AND PRODUCTION AND USE THEREOF
    Publication number: 20120202056
    Abstract: The present invention relates to composites having graphene layers and also processes for producing these composites. The invention further relates to a process for producing graphene layers using the composites of the invention.
    Type: Application
    Filed: October 11, 2010
    Publication date: August 9, 2012
    Applicant: BAYER TECHNOLOGY SERVICES
    Inventors: Aurel Wolf, Giulio Lolli, Leslaw Mleczko, Oliver Felix-Karl Schlüter