RETENCIÓN DE CR+3 EN PRODUCTOS ZEOLÍTICOS OBTENIDOS A PARTIE DE CATALIZADORES DE FCC: ESTUDIOS CINÉTICOS

M. R. GONZALEZ; A. M. PEREYRA; M. R. TORRES; E. I. BASALDELLA

Salta

Congreso; XVII Congreso Argentino de Catálisis y VI Congreso de Catálisis del Mercosur; 2011

Sociedad Argentina de Catálisis, SACat, el Instituto de Investigaciones para la Industria Química, INIQUI, y la Universidad Nacional de Salta

The kinetics of sorption of Cr(III) ions on zeolite NaA, NaY and zeolite structures obtained from the conversion of spent catalysts from catalytic cracking units was studied. Samples were obtained by hydrothermal synthesis in alkaline medium of NaOH. Sorption experiments were done in batch reactors. It was found that the zeolitic solids behave as cationic exchangers of potential utility in the removal of Cr +3 from aqueous solutions. The analysis of the kinetic data revealed that the retention mechanism is coincident for all the zeolitic solids tested, and corresponds to a pseudo second order kinetics. The analysis of the kinetic data revealed that the retention mechanism is coincident for all the zeolitic solids tested, and corresponds to a pseudo second order kinetics. The analysis of the kinetic data revealed that the retention mechanism is coincident for all the zeolitic solids tested, and corresponds to a pseudo second order kinetics. The analysis of the kinetic data revealed that the retention mechanism is coincident for all the zeolitic solids tested, and corresponds to a pseudo second order kinetics. +3 from aqueous solutions. The analysis of the kinetic data revealed that the retention mechanism is coincident for all the zeolitic solids tested, and corresponds to a pseudo second order kinetics.