Patents by Inventor Jacobus T. Daamen

Jacobus T. Daamen 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).

  • Titania extrudates
    Patent number: 5106549
    Abstract: The invention relates to a process for the preparation of a shapable dough which comprises mixing and kneading a particulate titania with water and an alkanolamine or ammonia or an ammonia- releasing compound to obtain a mixture having a total solids content of from 50 to 85% by weight, the alkanolamine or ammonia being present in an amount of from 0.5 to 20% by weight on the total solids content of the mixture, to a shapable dough obtained by this process, to the preparation of titania extrudates therefrom and to their use as catalyst carriers in hydrocarbon conversion processes, in hydrogenation processes or in hydrocarbon synthesis processes.
    Type: Grant
    Filed: February 7, 1990
    Date of Patent: April 21, 1992
    Assignee: Shell Oil Company
    Inventors: Jacobus T. Daamen, Hennie Schaper, Johannes A. R. Van Veen
  • Silica-alumina extrudates
    Patent number: 4888319
    Abstract: The invention relates to a process for the preparation of a shapable dough which comprises mixing and kneading a particulate silica-alumina with water and with an alkanolamine or ammonia to obtain a mixture having a total solids content of from 25 to 60% by weight, the alkanolamine or ammonia being present in an amount of from 0.5 to 20% by weight on the total solids content of the mixture, to a shapable dough obtained by this process, to the preparation of silica-alumina extrudates therefrom and to their use as catalyst carriers in hydrocarbon conversion or hydrocarbon synthesis reactions.
    Type: Grant
    Filed: October 11, 1988
    Date of Patent: December 19, 1989
    Assignee: Shell Oil Company
    Inventors: Jacobus T. Daamen, Tom Huizinga