Patents by Inventor Tjalling Rekker

Tjalling Rekker 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: 9045410
    Abstract: The invention relates to a catalyst comprising nickel and a solid silica support, to a process for preparing such a catalyst and to a process for the hydrogenation of an unsaturated fatty material. According to the invention there is provided a catalyst comprising nickel on a solid silica support, wherein said catalyst has a specific pore volume of at least 0.4 ml/g and a TPR peak maximum within the range of 360-420° C.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: June 2, 2015
    Assignee: BASF CORPORATION
    Inventors: Hermanus Johannes Bouwman, Robert Johan Andreas Maria Terörde, Tjalling Rekker
  • Publication number: 20140323601
    Abstract: The present invention is directed to a catalyst suitable for catalyzing a Fischer-Tropsch reaction, said catalyst comprising cobalt metal supported on zinc-oxide and having the following particle size distribution by volume: <10% having a particle size below 1 micron, 70-99% having a particle size between 1 and 5 micron, and <20% having a particle size above 5 micron.
    Type: Application
    Filed: July 6, 2014
    Publication date: October 30, 2014
    Applicant: BASF Corproation
    Inventors: Tjalling Rekker, Cornelis Roeland Baijense
  • Publication number: 20140256972
    Abstract: The invention relates to a catalyst comprising nickel and a solid silica support, to a process for preparing such a catalyst and to a process for the hydrogenation of an unsaturated fatty material. According to the invention there is provided a catalyst comprising nickel on a solid silica support, wherein said catalyst has a specific pore volume of at least 0.4 ml/g and a TPR peak maximum within the range of 360-420° C.
    Type: Application
    Filed: October 12, 2012
    Publication date: September 11, 2014
    Applicant: BASF CORPORATION
    Inventors: Hermanus Johannes Bouwman, Robert Johan Andreas Maria Teroerde, Tjalling Rekker
  • Patent number: 8778832
    Abstract: The present invention is directed to a catalyst suitable for catalyzing a Fischer-Tropsch reaction, said catalyst comprising cobalt metal supported on zinc-oxide and having the following particle size distribution by volume: <10% having a particle size below 1 micron, 70-99% having a particle size between 1 and 5 micron, and <20% having a particle size above 5 micron.
    Type: Grant
    Filed: November 11, 2008
    Date of Patent: July 15, 2014
    Assignee: BASF Corporation
    Inventors: Tjalling Rekker, Cornelis Roeland Baijense
  • Patent number: 8686168
    Abstract: The invention is directed to a process for the hydrogenation of unsaturated fatty acids to produce saturated fatty acids, said process comprising hydrogenating the unsaturated fatty acid in the presence of hydrogen and a supported nickel catalyst, said supported nickel catalyst comprising an oxidic support, 5 to 80 wt. % of nickel, calculated as metallic nickel on the weight of the catalyst, and 0.1 to 10 wt. % of a manganese promoter, calculated as MnO2 on the weight of the catalyst.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: April 1, 2014
    Assignee: BASF Corporation
    Inventors: Tjalling Rekker, Robert Johan Andreas Maria Terörde
  • Publication number: 20130079535
    Abstract: The invention is directed to a process for the hydrogenation of unsaturated fatty acids to produce saturated fatty acids, said process comprising hydrogenating the unsaturated fatty acid in the presence of hydrogen and a supported nickel catalyst, said supported nickel catalyst comprising an oxidic support, 5 to 80 wt. % of nickel, calculated as metallic nickel on the weight of the catalyst, and 0.1 to 10 wt. % of a manganese promoter, calculated as MnO2 on the weight of the catalyst.
    Type: Application
    Filed: March 28, 2011
    Publication date: March 28, 2013
    Applicant: BASF CORPORATION
    Inventors: Tjalling Rekker, Robert Johan Andreas Maria Terörde
  • Patent number: 8207083
    Abstract: The present invention relates to a catalyst nickel, silica, alumina and magnesium, wherein the nickel to magnesium atomic ratio is 5-75. In particular the present invention relates to a catalyst comprising nickel, silica, alumina and magnesium, wherein the nickel to silicium atomic ratio (Ni/Si) is 2 to 30 to nickel to aluminum atomic ratio (Ni/Al) is 9 to 40 and the nickel to magnesium atomic ratio (Ni/Mg) is 5-75. The invention further relates to a method for preparing such a catalyst. The invention further relates to a process for hydrogenating unsaturated organic compounds.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: June 26, 2012
    Assignee: BASF Corporation
    Inventors: Pieter Hildegardus Berben, Tjalling Rekker
  • Patent number: 7884139
    Abstract: The present invention relates to a catalyst comprising particles of a cobalt and zinc co-precipitate, having a volume average particle size of less than 150 ?m. Another aspect of the invention is the use of such a catalyst in a Fischer-Tropsch process. The present invention further relates to a method for preparing a catalyst comprising cobalt and zinc oxide, wherein an acidic solution comprising zinc ions and cobalt ions and a alkaline solution are contacted and the precipitate is isolated.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: February 8, 2011
    Assignee: BASF Corporation
    Inventors: Cornelis Roeland Baijense, Tjalling Rekker
  • Publication number: 20090221724
    Abstract: The present invention relates to a catalyst comprising particles of a cobalt and zinc co-precipitate, having a volume average particle size of less than 150 ?m. Another aspect of the invention is the use of such a catalyst in a Fischer-Tropsch process. The present invention further relates to a method for preparing a catalyst comprising cobalt and zinc oxide, wherein an acidic solution comprising zinc ions and cobalt ions and a alkaline solution are contacted and the precipitate is isolated.
    Type: Application
    Filed: January 16, 2009
    Publication date: September 3, 2009
    Applicant: BASF CATALYSTS LLC
    Inventors: Cornelis Roeland Baijense, Tjalling Rekker
  • Publication number: 20090197981
    Abstract: The present invention is directed to a catalyst suitable for catalyzing a Fischer-Tropsch reaction, said catalyst comprising cobalt metal supported on zinc-oxide and having the following particle size distribution by volume: <10% having a particle size below 1 micron, 70-99% having a particle size between 1 and 5 micron, and <20% having a particle size above 5 micron.
    Type: Application
    Filed: November 11, 2008
    Publication date: August 6, 2009
    Applicant: BASF CATALYSTS LLC
    Inventors: Tjalling Rekker, Cornelis Roeland Baijense
  • Patent number: 7563747
    Abstract: The present invention relates to a catalyst comprising particles of a cobalt and zinc co-precipitate, having a volume average particle size of less than 150 ?m. Another aspect of the invention is the use of such a catalyst in a Fischer-Tropsch process. The present invention further relates to a method for preparing a catalyst comprising cobalt and zinc oxide, wherein an acidic solution comprising zinc ions and cobalt ions and a alkaline solution are contacted and the precipitate is isolated.
    Type: Grant
    Filed: April 22, 2003
    Date of Patent: July 21, 2009
    Assignee: BASF Catalysts LLC
    Inventors: Cornelis Roeland Baijense, Tjalling Rekker
  • Publication number: 20090182181
    Abstract: The present invention relates to a catalyst nickel, silica, alumina and magnesium, wherein the nickel to magnesium atomic ratio is 5-75. In particular the present invention relates to a catalyst comprising nickel, silica, alumina and magnesium, wherein the nickel to silicium atomic ratio (Ni/Si) is 2 to 30 to nickel to aluminum atomic ratio (Ni/Al) is 9 to 40 and the nickel to magnesium atomic ratio (Ni/Mg) is 5-75. The invention further relates to a method for preparing such a catalyst. The invention further relates to a process for hydrogenating unsaturated organic compounds.
    Type: Application
    Filed: March 26, 2009
    Publication date: July 16, 2009
    Applicant: BASF CATALYSTS LLC
    Inventors: Pieter Hildegardus Berben, Tjalling Rekker
  • Patent number: 7528092
    Abstract: The present invention relates to a catalyst nickel, silica, alumina and magnesium, wherein the nickel to magnesium atomic ratio is 5-75. In particular the present invention relates to a catalyst comprising nickel, silica, alumina and magnesium, wherein the nickel to silicium atomic ratio (Ni/Si) is 2 to 30 the nickel to aluminum atomic ratio (Ni/Al) is 9 to 40 and the nickel to magnesium atomic ratio (Ni/Mg) is 5-75. The invention further relates to a method for preparing such a catalyst. The invention further relates to a process for hydrogenating unsaturated organic compounds.
    Type: Grant
    Filed: October 17, 2003
    Date of Patent: May 5, 2009
    Assignee: BASF Catalysts LLC
    Inventors: Pieter Hildegardus Berben, Tjalling Rekker
  • Publication number: 20060100452
    Abstract: The present invention relates to a catalyst nickel, silica, alumina and magnesium, wherein the nickel to magnesium atomic ratio is 5-75. In particular the present invention relates to a catalyst comprising nickel, silica, alumina and magnesium, wherein the nickel to silicium atomic ratio (Ni/Si) is 2 to 30 the nickel to aluminum atomic ratio (Ni/Al) is 9 to 40 and the nickel to magnesium atomic ratio (Ni/Mg) is 5-75. The invention further relates to a method for preparing such a catalyst. The invention further relates to a process for hydrogenating unsaturated organic compounds.
    Type: Application
    Filed: October 17, 2003
    Publication date: May 11, 2006
    Applicant: Engelhard Corporation
    Inventors: Pieter Berben, Tjalling Rekker
  • Publication number: 20050170956
    Abstract: The present invention relates to a catalyst comprising particles of a cobalt and zinc co-precipitate, having a volume average particle size of less than 150 ?m. Another aspect of the invention is the use of such a catalyst in a Fischer-Tropsch process. The present invention further relates to a method for preparing a catalyst comprising cobalt and zinc oxide, wherein an acidic solution comprising zinc ions and cobalt ions and a alkaline solution are contacted and the precipitate is isolated.
    Type: Application
    Filed: April 22, 2003
    Publication date: August 4, 2005
    Inventors: Cornelis Baijense, Tjalling Rekker
  • Patent number: 5856603
    Abstract: The invention is directed to a process for the production of cyclohexane by catalytic hydrogenation of benzene using hydrogen, said process comprising the hydrogenation of benzene in the presence of a supported nickel catalyst having a nickel content of at least 10 wt. %, calculated as nickel, said catalyst containing sulfur, or compounds thereof, as promotor.
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: January 5, 1999
    Assignee: Engelhard Corporation
    Inventors: Tjalling Rekker, Bernard Hendrik Reesink, Frederik Borninkhof