Per: Iasmim Ariane Silva (IFRN), Pedro Henrique Medeiros Câmara (IFRN), Jaiza Bernardo de Oliveira (ifrn), flanelson maciel monteiro (ifrn)
Abstract:
The process of manufacturing pig iron in the blast furnace industrial units has the consequence of the generation of slag, a waste that can be produced in high quantity and present damages to the environment, when not reused. In the composition of this tailing, can be find the presence of metals, harmful to the nature, such as manganese which has an important and widespread utility in the metal industry, but even so the slags are not used as a potential source of this element. Knowing this, the slags were subjected to crushing and grading steps to separate the aliquots. These were applied in the tests of technological characterization of the material, from MEV, EDS,Soxhlet, analysis of liberation degree by digital microscope, finding data of several analyzes. Thus, the objective of this paper is to demonstrate, through the characterization of the slag, that this material has in its composition metallic elements, focusing on manganese, that can be reused in order to avoid the generation of environmental liabilities harmful to the environment. The results show a manganese content with a degree of release greater than 80% in bands from 48 #, which were divided by density and thus allow the gravimetric separation of the material in question.