Effect of the temperature on the chlorination of a Sm2O3-CeO2 mixture

M.R. ESQUIVEL; A. BOHE; D. PASQUEVICH

Ciudad de Buenos Aires - Argentina

Congreso; LANS - ALANS - SYMPOSIUM ON NUCLEAR ENERGY: CHALLENGES AND REALITIES IN LATIN AMERICA; 2001

ASOCIACIÓN ARGENTINA DE TECNOLOGÍA NUCLEAR

In this work, the reactivity with temperature of a Sm2O3-CeO2 mixture using gaseous chlorine as chlorinating agent has been studied by thermogravimetry under controlled atmosphere in the 20-950ºC temperature range. Reactants and products were analyzed by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). A computer assisted thermodynamic analysis to propose the possible products of reaction along with a comparison between the reactivity towards temperature of the Sm2O3-CeO2 mixture and those of the chlorination of the individual oxides were performed in order to determine the possibility of chemical separation when both oxides are present in solid mixtures.2O3-CeO2 mixture using gaseous chlorine as chlorinating agent has been studied by thermogravimetry under controlled atmosphere in the 20-950ºC temperature range. Reactants and products were analyzed by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). A computer assisted thermodynamic analysis to propose the possible products of reaction along with a comparison between the reactivity towards temperature of the Sm2O3-CeO2 mixture and those of the chlorination of the individual oxides were performed in order to determine the possibility of chemical separation when both oxides are present in solid mixtures.2O3-CeO2 mixture and those of the chlorination of the individual oxides were performed in order to determine the possibility of chemical separation when both oxides are present in solid mixtures.