Patents by Inventor Nicolaus Ladislaus Stark

Nicolaus Ladislaus Stark 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: 9522856
    Abstract: A process (10) for oligomerising a hydrocarbon to form at least one co-monomer product (22) includes feeding a hydrocarbon reactant and organic liquid diluent solvent (32) into an oligomerisation reactor (12). The organic liquid diluent solvent has a normal boiling point below the normal boiling point of 1-hexene but above ?20° C., or the organic diluent solvent is in the form of a solvent admixture with at least 70% by mass of the solvent admixture constituting organic diluent solvents having a normal boiling point below the normal boiling point of 1-hexene but above ?20° C. The oligomerisation reactor (12) holds at least one co-monomer product formed in the oligomerisation reactor admixed with a catalyst system (25) introduced into the oligomerisation reactor (12). The catalyst system (25) includes a catalyst dissolved in at least one catalyst solvent.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: December 20, 2016
    Assignee: SASOL TECHNOLOGY (PROPRIETARY) LIMITED
    Inventors: Denise Louisette Venter, Kenny Tenza, Palesa Nongodlwana, Matthew James Overett, Kevin Blann, Nicolaus Ladislaus Stark, Craig McGregor, Richard Neil Walsh
  • Publication number: 20150126790
    Abstract: A process (10) for oligomerising a hydrocarbon to form at least one co-monomer product (22) includes feeding a hydrocarbon reactant and organic liquid diluent solvent (32) into an oligomerisation reactor (12). The organic liquid diluent solvent has a normal boiling point below the normal boiling point of 1-hexene but above ?20° C., or the organic diluent solvent is in the form of a solvent admixture with at least 70% by mass of the solvent admixture constituting organic diluent solvents having a normal boiling point below the normal boiling point of 1-hexene but above ?20° C. The oligomerisation reactor (12) holds at least one co-monomer product formed in the oligomerisation reactor admixed with a catalyst system (25) introduced into the oligomerisation reactor (12). The catalyst system (25) includes a catalyst dissolved in at least one catalyst solvent.
    Type: Application
    Filed: May 8, 2013
    Publication date: May 7, 2015
    Inventors: Denise Louisette Venter, Kenny Tenza, Palesa Nongodlwana, Matthew James Overett, Kevin Blann, Nicolaus Ladislaus Stark, Craig McGregor, Richard Neil Walsh
  • Patent number: 7553997
    Abstract: A process for bulk hydrogenation of an olefin-containing feedstock containing a plurality of different unsaturated olefinic hydrocarbon compounds, for example a feedstock containing from 60 to 100 mass % unsaturated olefinic hydrocarbon compounds, by subjecting the olefinic feedstock to bulk hydrogenation in a catalytic distillation zone containing a hydrogenation catalyst, and in the presence of hydrogen, under conditions favoring bulk hydrogenation to hydrogenate unsaturated olefinic hydrocarbon compounds present in the feedstock into their corresponding saturated compounds, and withdrawing the saturated compounds from the catalytic distillation zone.
    Type: Grant
    Filed: August 21, 2003
    Date of Patent: June 30, 2009
    Assignee: Catalytic Distillation Technologies
    Inventors: Nicolaus Ladislaus Stark, Josias Sevaas De Kock Swart
  • Patent number: 6100427
    Abstract: A process for producing an amide and/or acid from a nitrile comprises introducing a nitrile, as a first reactant, and a hydration compound, as a second reactant which is capable of reacting with the nitrile to convert it to its corresponding amide thus hydrating the nitrile and/or to convert it to its corresponding acid, into a treatment zone. The nitrile is subjected to catalytic distillation in the treatment zone in the presence of the hydration compound, to hydrate at least some of the nitrile to the corresponding amide and/or to form its corresponding acid. The amide and/or acid is withdrawn from the treatment zone.
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: August 8, 2000
    Assignee: Catalytic Distillation Technologies
    Inventors: Barend Christiaan Buurman Bezuidenhout, Zamile Denga, Rian Steyn, Petrus Johannes Steynberg, Nicolaus Ladislaus Stark