The aim of the study was the hydrogenation reaction on a catalyst Citral Pd-Fe/MgO and the reaction selectivity towards the different products obtained. Citral hydrogenation is performed in a batch reactor at 60° C with a solution of 2-propanol as solvent. The results show that the catalyst is Pd-Fe/MgO very active in the hydrogenation of the double bond adjacent to the carbonyl in the Citral and that catalyst activity sharply declines last 10 minutes of the reaction.

El objetivo del trabajo es estudiar la reacción dehidrogenación del Citral sobre un catalizador de Pd-Fe/MgO y la selectividad de la reacción hacia los diferentes productos obtenidos.La hidrogenación de Citral se realiza en un reactor batcha 60°C con una solución con 2-propanol como solvente. Los resultados demuestran que el catalizador de Pd-Fe/MgO es muy activo en la hidrogenación del enlacedoble adyacente al carbonilo en el Citral y que la actividad del catalizador decae fuertemente pasado los 10 minutos de reacción.

Pd-Fe bimetallic catalysts were studied on different supports such as Al2O3, SiO2, C, TiO2 and MgO, which were prepared by the impregnation method at a ratio of 2/1 of Pd/Fe. The characterization was performed by XRD, DTP of hydrogen, TPR, BET and TEM. The results show a high surface area, high dispersion of metals with small crystals and the presence of two types of acid centers.

It reproduces the process of preparing the pisco since the preparation of the grape juice to final product for seven of the eight varieties of grapes for Pisco. In this first part is reported the composition of the musts obtained and the fermented grape. The analysis is done by gas chromatography.

Pd-Fe bimetallic catalysts were studied on different supports such as Al2O3, SiO2, C, TiO2 and MgO, which were prepared by the impregnation method at a ratio of 2/1 of Pd/Fe. The characterization was performed by XRD, DTP of hydrogen, TPR, BET and TEM. The results show a high surface area, high dispersion of metals with small crystals and the presence of two types of acid centers.

Se reproduce el proceso de preparación del pisco desde la elaboración del mosto hasta el producto final para siete de las ocho variedades de uva pisqueras. En esta primera parte se reporta la composición de los mostos obtenidos y de los mostos fermentados. El análisis se realiza por cromatografía de gases.

Pisco is produced from fermented grape seven Pisquera grapes. In this second part is reported the composition of pisco. The analysis was performed using the method USAQ-ME-11 by gas chromatography with mass spectroscopy.

Pisco is produced from fermented grape seven Pisquera grapes. In this second part is reported the composition of pisco. The analysis was performed using the method USAQ-ME-11 by gas chromatography with mass spectroscopy.

It was prepared a bimetallic palladium–iron catalyst with support in carbon by the method of impregnation, following of drying and calcinations. The catalyst was characterized by DRX, Hydrogen DTP, TPR, BET and TEM. The test of the activity was made with the reaction of the hydrogenation of cronotaldehyde, obtained a selectivity to butanol of 23,65%.

It was prepared a bimetallic palladium–iron catalyst with support in carbon by the method of impregnation, following of drying and calcinations. The catalyst was characterized by DRX, Hydrogen DTP, TPR, BET and TEM. The test of the activity was made with the reaction of the hydrogenation of cronotaldehyde, obtained a selectivity to butanol of 23,65%.

The objective of this work is the transformation of fructose to 4-hydroxymethylfurfural by a dehydratation process using the 4-toluenesulfonic acid as catalyst . The reaction was carried out using solutions of fructose in water and fructose in water-acetone (50% volume) in a batch reactor at temperatures of 372 K and 348 K respectively. The yield reached a maximum of 16% to hydroxymethylfurfural, an intermediate for obtaining fuel furan.

The objective of this work is the transformation of fructose to 4-hydroxymethylfurfural by a dehydratation process using the 4-toluenesulfonic acid as catalyst . The reaction was carried out using solutions of fructose in water and fructose in water-acetone (50% volume) in a batch reactor at temperatures of 372 K and 348 K respectively. The yield reached a maximum of 16% to hydroxymethylfurfural, an intermediate for obtaining fuel furan.