MICROSCOPIC METHODS IN THE STUDY OF ADSOR PTION REACTION IN INDUSTRIAL-PROCESSES

Solid-liquid interactions, as adsorption or ion exchange; are present in different industries, i.e. chemical, metallurgical or nuclear. The optimization of the processes requires studies of physical and chemica l fundamentals: equilibrium, kinetics and evaluation of the possibilit y of damages in the solid during the reaction. In this work, microscop y is analyzed as a technique able to evaluate some of these aspects. O ptical microscopy allows determine the kinetic models of ion exchange reactions, and their parameters. Electronic microscopy seems adequate to follow the progressive damage of the solid after several uses.