NANOSTRUCTURED TIO2/A2O3 BINARY OXIDE WITH STABILIZED ACIDITY, CATALYTIC SUPPORT AND METHOD FOR OBTAINING THE SAME

The present disclosure is related to a nanostructured TiO2/AI2O3 binary oxide with stabilized acidity, called TiO2-Al2O3 and its production process via the sol-gel method and hydro-treatment. The TiO2/AI2O3 binary oxide with stabilized acidity, called TiO2-Al2O3 and its production process via the sol-gel method and hydrotreatment and thermal activation, is constituted basically by titanium oxide and aluminum oxide, with the special characteristic of being like nanostructures, in their evolution nanocrystals-nanotubes-nanocrystals, conferring special physicochemical properties such as: High specific area, purity and phase stability, acidity, stability, and different types of active acid sites, as well as an ability to disperse and stabilize active metal particles with high activity and selectivity mainly in catalytic processes. The process for obtaining the TiO2/AI2O3 binary oxide with stabilized acidity, consists in providing a nanostructure V/TiO2-Al2O3 catalyst where the crystal siz e dimension of the nanostructures-nanocrystals-nanotubes of the V/TiO2-Al2O3 catalyst depend on the particular or joint management of the variables of the sol-gel and hydro-treatment methods; with respect to the sol-gel method, such as, the types of titanium metal alkoxides used, the solvents characteristics, the alkoxide/water ratio, and the medium in which the hydrolysis is performed, which can be acidic or basic; and in the hydrothermal process variables such as: Concentration of an alkaline base, temperature, aging time and washing conditions and finally the thermal activation treatments of the obtained V/TiO2-AI2O3 catalysts. The obtaining process for the nanostructured V/TiO2-AI2O3 catalysts with stabilized acidity called V/TiO2-Al2O3, where the drying stages in the ranges of 70 to 80°C, in periods of time from four to twelve hours and the calcination stage in the range of 300 to 600°C, in a time period from three to nine hours, determine the evolution of nanocrystals-nanotubes- nanocrystal structures, with special physicochemical properties, giving the V/TiO2-Al2O3 catalyst, the ability to disperse and stabilize active metal particles with high activity and selectivity mainly in catalytic processes. A nanostructured V/TiO2-Al2O3 catalyst with a high acid content and different types of acid sites (Lewis/Brönsted), stabilized at high temperature and with resistance to deactivation by temperature, conferring the catalyst a specific acidity for catalytic processes. La pres