Estudo das propriedade físicas de escórias aluminotérmicas de ferro ligas para a recuperação de urânio e tório

Abstract

NORM minerals generate, after metallurgical processing, radioactive slag that can be controlled by CNEN. Thus, it is necessary to establish a reprocessing route to make the material exempt. The route necessarily involves the characterization of the slag based on its physical properties. In this article, the results of the variation of the concentrations of the oxides of U and of Th with the electric and magnetic properties, density and size of the slag are presented. It was observed that the metallurgical processing produces a slag as residue with connections at the molecular level between the oxides that constitute it. Thus, the separation of the oxides will only be possible with the leaching of the slag.