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Please use this identifier to cite or link to this item: http://dspace.utalca.cl/handle/1950/4258

Title: Catalytic ozonation of oxalic acid with MnO2/TiO2 and Rh/TiO2
Authors: Quispe, C.
Villasenor, J.
Pecchi, G.
Reyes, P.
Keywords: Oxalic acid, catalytic ozonation, MnO2/TiO2, Rh/TiO2.
Issue Date: 2006
Publisher: Sociedad Chilena de Quimica
Citation: Journal of the Chilean Chemical Society 51(4):1049-1051
Abstract: catalytic ozonation of oxalic acid in a batch reactor using TiO2, MnO2/TiO2 and Rh/TiO2 as catalysts was studied. The presence of the catalyst significantly improves the ozonation rate in comparison with the non-catalytic reaction. The adsorption and the extent of degradation of oxalic acid were found to be dependent on the solution's pH. Higher degradation rates were found for catalytic systems at pH 2.5, where the oxalic acid concentration in the water phase was almost completely removed. The contribution of the MnO2/TiO2 and Rh/TiO2 catalysts as well the TiO2 support is discussed. The highest mineralization, expressed as CO2 evolution, was reached with the MnO2/TiO2 catalyst at pH 2.5
Description: Quispe, C; Villasenor, J. Instituto de Química de Recursos Naturales, Universidad de Talca, Casilla 747 Talca, Chile.
URI: http://dspace.utalca.cl/handle/1950/4258
ISSN: 0717-9324
Appears in Collections:Artículos en publicaciones ISI - Universidad de Talca

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