Patents by Inventor Hubert Redlingshofer

Hubert Redlingshofer 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 PREPARING METHYL MERCAPTAN FROM DIALKYL SULPHIDES AND DIALKYL POLYSULPHIDES
    Publication number: 20080200730
    Abstract: A process for continuously preparing methyl mercaptan by reacting a reactant mixture which contains a dialkyl sulphide and a dialkyl polysulphide with hydrogen sulphide to give methyl mercaptan.
    Type: Application
    Filed: February 6, 2008
    Publication date: August 21, 2008
    Inventors: Jan-Olaf BARTH, Hubert Redlingshofer, Christoph Weckbecker, Klaus Huthmacher
  • NOVEL CATALYSTS AND PROCESS FOR DEHYDRATING GLYCEROL
    Publication number: 20080183019
    Abstract: A process for preparing acrolein from glycerol using an acidic solid-state catalyst which comprises tungsten compounds and further promoters.
    Type: Application
    Filed: January 22, 2008
    Publication date: July 31, 2008
    Inventors: Hubert Redlingshofer, Christoph Weckbecker, Klaus Huthmacher, Andreas Dorflein
  • Production of 3- (alkylthio) propanal
    Patent number: 7402705
    Abstract: The invention relates to a process for the production of 3-(alkylthio)propanal from glycerol using catalysts.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: July 22, 2008
    Assignee: Evonik Degussa GmbH
    Inventors: Hubert Redlingshofer, Christoph Weckbecker, Klaus Huthmacher, Achim Fischer, Jan-Olaf Barth
  • Process for the continuous production of methylmercaptan
    Patent number: 7368611
    Abstract: The invention relates to a process for the continuous production of methylmercaptan by reacting a starting gas mixture of methanol and hydrogen sulphide in the gas phase at a reaction temperature between 200 and 600° C. and an operating pressure of 1.5 to 40 bar on a catalyst in a multi-bed reactor.
    Type: Grant
    Filed: April 6, 2006
    Date of Patent: May 6, 2008
    Assignee: Degussa AG
    Inventors: Jan-Olaf Barth, Hubert Redlingshöfer, Christoph Weckbecker, Klaus Huthmacher
  • Catalytic removal of dissolved oxygen from organic liquids
    Patent number: 7344649
    Abstract: A method for removal of dissolved oxygen from organic liquids by use of a solid state catalyst. In doing so the dissolved oxygen is converted by the action of a reducing agent into water.
    Type: Grant
    Filed: April 14, 2005
    Date of Patent: March 18, 2008
    Assignee: Degussa AG
    Inventors: Hubert Redlingshöfer, Andreas Dörflein, Christoph Weckbecker
  • Catalysts Containing Tungstate for the Synthesis of Alkylmercaptane and Method for The Production Thereof
    Publication number: 20080033213
    Abstract: The invention relates to a catalyst containing alkali tungstate for the synthesis of alkylmercaptanes from alkanols and hydrogen sulphide, in addition to a method for the production of said catalyst, wherein the molar ratio of alkali to tungstan is<2:1.
    Type: Application
    Filed: July 5, 2005
    Publication date: February 7, 2008
    Inventors: Hubert Redlingshofer, Christoph Weckbecker, Klaus Huthmacher
  • PROCESS FOR THE MANUFACTURE OF METHYMERCAPTAN
    Publication number: 20070213564
    Abstract: The present invention refers to a continuous process for the manufacture of methyl mercaptan using Mo-O—K-based catalysts. It is further described that the total selectivity of methylmercaptan can be increased by at least 1% by lowering the total gas hourly space velocity. The invention further refers to a process for the preparation of a solid, preformed catalyst system.
    Type: Application
    Filed: September 29, 2004
    Publication date: September 13, 2007
    Inventors: Yiquan Yang, Qi Wang, Renchun Lin, Hongbin Zhang, Youzhu Yuan, Weiping Fang, Quanxing Zheng, Shenjun Dai, Xingguo Yan, Aiping Chen, Jan-Olaf Barth, Christoph Weckbecker, Klaus Huthmacher, Hubert Redlingshofer, Sabine Ackermann
  • PROCESS FOR THE CONTINUOUS PRODUCTION OF METHYLMERCAPTAN
    Publication number: 20060229474
    Abstract: The invention relates to a process for the continuous production of methylmercaptan by reacting a starting gas mixture of methanol and hydrogen sulphide in the gas phase at a reaction temperature between 200 and 600° C. and an operating pressure of 1.5 to 40 bar on a catalyst in a multi-bed reactor.
    Type: Application
    Filed: April 6, 2006
    Publication date: October 12, 2006
    Inventors: Jan-Olaf Barth, Hubert Redlingshofer, Christoph Weckbecker, Klaus Huthmacher
  • Production of 3- (alkylthio) propanal
    Publication number: 20060183945
    Abstract: The invention relates to a process for the production of 3-(alkylthio)propanal from glycerol using catalysts.
    Type: Application
    Filed: January 27, 2006
    Publication date: August 17, 2006
    Applicant: DEGUSSA AG
    Inventors: Hubert Redlingshofer, Christoph Weckbecker, Klaus Huthmacher, Achim Fischer, Jan-Olaf Barth
  • Catalysts comprising halide-containing alkali tungstates for the synthesis of alkylmercaptan, and process for their preparation
    Publication number: 20060135816
    Abstract: The invention relates to a halide-containing alkali tungstate catalyst for the synthesis of alkylmercaptans from alkanols and hydrogen sulfide, and to a process for the preparation of this catalyst.
    Type: Application
    Filed: December 15, 2005
    Publication date: June 22, 2006
    Inventors: Hubert Redlingshofer, Christoph Weckbecker, Andreas Dorflein
  • Catalytic removal of dissolved oxygen from organic liquids
    Publication number: 20050230322
    Abstract: A method for removal of dissolved oxygen from organic liquids by use of a solid state catalyst. In doing so the dissolved oxygen is converted by the action of a reducing agent into water.
    Type: Application
    Filed: April 14, 2005
    Publication date: October 20, 2005
    Inventors: Hubert Redlingshofer, Andreas Dorflein, Christoph Weckbecker
  • Catalyst for the synthesis of alkyl mercaptan and process for the production thereof
    Publication number: 20050080295
    Abstract: The invention relates to an oxidic catalyst containing cesium and tungsten for the synthesis of alkyl mercaptans from alkanols and hydrogen sulfide, and to a process for the production of this catalyst, wherein the molar ratio of cesium to tungsten is <2:1.
    Type: Application
    Filed: August 23, 2004
    Publication date: April 14, 2005
    Applicant: Degussa AG
    Inventors: Hubert Redlingshofer, Christoph Weckbecker, Andreas Dorflein, Michael Ruckriegel