Patents by Inventor Jose M. Larrauri Derteano

Jose M. Larrauri Derteano 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).

  • Regeneration of an iron based natural catalyst used in the hydroconversion of heavy crudes and residues
    Patent number: 4751210
    Abstract: A process for regenerating a spent, naturally occurring catalyst characterized by an iron content of about 10 to 70 wt. % as metal comprises contacting the spent catalyst with a mixture of water vapor and air in a water vapor/air ratio of between 1:1 to 20:1 at a flow rate of about 0.1 to 50 l/min., a temperature of about 200.degree. to 700.degree. C., a pressure of about 0.3 to 80 atmospheres for a time of about 0.1 to 20 hours so as to obtain a regenerated catalyst having a crystallinity value of about 1.0 to 6.5.
    Type: Grant
    Filed: May 21, 1987
    Date of Patent: June 14, 1988
    Assignee: Intevep, S.A.
    Inventors: M. M. Ramirez de Agudelo, Jose M. Larrauri Derteano, Julio Krasuk