Patents by Inventor Mariela Medina

Mariela Medina 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).

  • Catalyst for the simultaneous selective hydrogenation of diolefins and nitriles and method of making same
    Patent number: 5663446
    Abstract: A catalyst useful for the simultaneous and selective hydrogenation of diolefins and nitriles present in a hydrocarbon feedstock. The support material is preferably selected from the group consisting of an inorganic oxide-zeolite composite, carbon and zeolite. A catalytically active phase is deposited on the support material. The catalytically active metal phase is selected from the group consisting of partially reduced Group IB metals and completely reduced Group VIII metals. The catalytically active metal phase is present in an amount of .gtoreq.0.03 wt %.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: September 2, 1997
    Assignee: Intevep, S.A.
    Inventors: Magdalena Ramirez de Agudelo, Julia Guerra, Trino Romero, Mariela Medina
  • Catalyst for the simultaneous selective hydrogenation of diolefins and nitriles and method of making same
    Patent number: 5523271
    Abstract: A catalyst useful for the simultaneous and selective hydrogenation of diolefins and nitriles present in a hydrocarbon feedstock. The support material is preferably selected from the group consisting of an inorganic oxide-zeolite composite, carbon and zeolite. A catalytically active phase is deposited on the support material. The catalytically active metal phase is selected from the group consisting of partially reduced Group IB metals and completely reduced Group VIII metals. The catalytically active metal phase is present in an amount of .gtoreq.0.03 wt %.
    Type: Grant
    Filed: December 13, 1994
    Date of Patent: June 4, 1996
    Assignee: Intevep, S.A.
    Inventors: Magdalena R. de Agudelo, Julia Guerra, Trino Romero, Mariela Medina