Patents by Inventor Sandra Leiva Herrero

Sandra Leiva Herrero 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).

  • Microporous crystalline zeolite material, zeolite ITQ-32, preparation method thereof and use of same
    Patent number: 7582278
    Abstract: The invention relates to a microporous crystalline zeolite material which, in the calcined state and in the absence of defects in the crystalline lattice thereof, manifested by the presence of silanols, has empirical formula x(M1/nXO2):yYO2:SiO2, in which M is selected from among H+, at least one inorganic cation with charge +n and a mixture of both; X is at least one chemical element in oxidation state +3; Y is at least one chemical element in oxidation state +4, which is different from Si, x has a value of between 0 and 0.2 inclusive, and y has a value of between 0 and 0.1 inclusive. In addition, as it is synthesised, and in the calcined state, the material has a characteristic X-ray diffraction pattern known as ITQ-32. The invention also relates to the method of preparing said material and to the use thereof.
    Type: Grant
    Filed: January 26, 2006
    Date of Patent: September 1, 2009
    Assignees: Consejo Superior de Investigaciones Cientificas, Universidad Politecnica de Valencia
    Inventors: Avelino Corma Canós, Ángel Cantín Sanz, Fernando Rey García, Susana Valencia Valencia, Sandra Leiva Herrero
  • Microporous Crystalline Zeolite Material, Zeolite ITQ-32, Preparation Method Thereof and Use of Same
    Publication number: 20090068092
    Abstract: The invention relates to a microporous crystalline zeolite material which, in the calcined state and in the absence of defects in the crystalline lattice thereof, manifested by the presence of silanols, has empirical formula x(M1/nXO2):y YO2:SiO2, in which M is selected from among H+, at least one inorganic cation with charge +n and a mixture of both; X is at least one chemical element in oxidation state +3; Y is at least one chemical element in oxidation state +4, which is different from Si, x has a value of between 0 and 0.2 inclusive, and y has a value of between 0 and 0.1 inclusive. In addition, as it is synthesised, and in the calcined state, the material has a characteristic X-ray diffraction pattern known as ITQ-32. The invention also relates to the method of preparing said material and to the use thereof.
    Type: Application
    Filed: January 26, 2006
    Publication date: March 12, 2009
    Inventors: Avelino Corma Canos, Angel Cantin Sanz, Fernando Rey Garcia, Susana Valencia Valencia, Sandra Leiva Herrero