Catalizadores basados en arcillas pilareadas en la oxidación de etanol

GABRIELA AMAYA, CECILIA SOLAR Y KARIM SAPAG

Santa Fe

Congreso; XIV Congreso Argentino de Catálisis; 2005

INCAPE e INTEC

In this work, it is introduced the synthesis, characterization and its application in the ethanol oxidation, of clays pillared with aluminum, as Cu catalyst support, and clays pillared with Fe. The aluminum pillared clays were synthesized from an aluminum oligocation with OH/Al=2, incorporated to a bentonite in a proportion of 20 meq Al/gr of clay. By using this Al-PILC as support, we prepared Cu catalyst by the wet incipient method with different salts as former materials: CuCl2.6H2O, Cu(NO3)2.3H2O y Cu(C2H3O2)2  in different quantities. Fe pillared clays were synthesized with [Fe3(OCOCH3)7OH.2H2O]NO3 as the former material, obtaining Fe-PILCs with different Fe quantities. Catalysts were synthesized by different methods and tested in the ethanol oxidation reaction. Except in the case of the natural clay, the activity of the prepared compounds demonstrates their potentiality for the selected reaction. For Cu catalysts, it is important the variation in its activity according to the active phase quantity (Cu) and the support acidity. For Fe catalysts, the results show that those compounds are suitable for this reaction, where their activity begin at about 200ºC, reaching a total conversion at 300ºC.