Patents by Inventor Andrés M. Quesada

Andrés M. Quesada 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).

  • OFFRETITE ALUMINOSILICATE COMPOSITION AND PREPARATION AND USE OF SAME
    Publication number: 20120132567
    Abstract: An offretite metalloalluminosilicate composition, including an aluminosilicate framework containing at least one metal selected from the group consisting of iron, divalent elements and combinations thereof, wherein at least a portion of the metal is incorporated into the framework, and wherein the portion is at least about 0.5% wt. with respect to the composition.
    Type: Application
    Filed: February 7, 2012
    Publication date: May 31, 2012
    Applicant: INTEVEP, S.A.
    Inventors: Andres M. Quesada Perez, Gerardo Vitale-Rojas
  • Modified kaolin compositions and methods for making same
    Patent number: 7390358
    Abstract: A method for preparing a modified kaolin clay, includes the steps of providing a kaolin clay material having a starting ratio of silica to alumina; mixing the kaolin clay material with acid so as to form a substantially homogenous paste; calcining the paste so as to provide a calcined acid-treated clay material; mixing the calcined acid-treated clay material in water so as to form a suspension; precipitating aluminum from the suspension so as to produce a reduced aluminum suspension; and obtaining a modified clay material from the reduced aluminum suspension, wherein the modified clay material has a final ratio of silica to alumina which is higher than the starting ratio.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: June 24, 2008
    Assignee: Intevep, S.A.
    Inventors: Andres M. Quesada Perez, Gerardo Vitale-Rojas
  • Process for catalytic cracking of a hydrocarbon feed with a MFI aluminisilcate composition
    Patent number: 6726834
    Abstract: A process for catalytic cracking of a hydrocarbon feed, includes the steps of providing an initial hydrocarbon fraction; providing a catalyst comprising an aluminosilicate composition having an aluminosilicate composition having an aluminosilicate framework and containing at least one metal other than aluminum incorporated into the aluminosilicate framework; and exposing the hydrocarbon to the catalyst under catalytic cracking conditions so as to provide an upgraded hydrocarbon product.
    Type: Grant
    Filed: March 28, 2001
    Date of Patent: April 27, 2004
    Assignee: Intevep, S.A.
    Inventors: Andrés M. Quesada, Gerardo Vitale-Rojas, José Velásquez, María Nieves Alvarez
  • Aluminosilicate compositions, preparation and use
    Publication number: 20020056662
    Abstract: A process for catalytic cracking of a hydrocarbon feed, includes the steps of providing an initial hydrocarbon fraction; providing a catalyst comprising an aluminosilicate composition having an aluminosilicate composition having an aluminosilicate framework and containing at least one metal other than aluminum incorporated into the aluminosilicate framework; and exposing the hydrocarbon to the catalyst under catalytic cracking conditions so as to provide an upgraded hydrocarbon product.
    Type: Application
    Filed: March 28, 2001
    Publication date: May 16, 2002
    Inventors: Andres M. Quesada, Gerardo Vitale-Rojas, Jose Velasquez, Maria Nieves Alvarez