Per: ANDRÉ OLIVEIRA GALON (Instituto Federal de Educação, Ciência e Tecnologia do Espírito Santo ), Caio Vaccari Silva (INSTITUTO FEDERAL DE EDUCAÇÃO, CIÊNCIA E TECNOLOGIA DO ESPÍRITO SANTO), Victor Bridi Telles (INSTITUTO FEDERAL DE EDUCAÇÃO, CIÊNCIA E TECNOLOGIA DO ESPÍRITO SANTO), Elton Volkers do Espírito santo (INSTITUTO FEDERAL DE EDUCAÇÃO, CIÊNCIA E TECNOLOGIA DO ESPÍRITO SANTO), Raphael Mariano de souza (INSTITUTO FEDERAL DE EDUCAÇÃO, CIÊNCIA E TECNOLOGIA DO ESPÍRITO SANTO), Felipe Fardin Grillo (INSTITUTO FEDERAL DE EDUCAÇÃO, CIÊNCIA E TECNOLOGIA DO ESPÍRITO SANTO), José Roberto de Oliveira (INSTITUTO FEDERAL DE EDUCAÇÃO, CIÊNCIA E TECNOLOGIA DO ESPÍRITO SANTO)
Abstract:
To meet the market demand for steels with increasingly lower phosphorus content, mastering the most efficient dephosphorizing methods is fundamental. Thus, the use of computational thermodynamics is extremely important, since the software simulations are a fast, safe and efficient way to obtain results in the area of steelmaking. In the present work it was proposed with FactSage 7.2 the analysis of the efficiency of dephosphorization of different fluxes: fluorspar, sodalite, B2O3 and soda ash; which were added to a standard dephosphorizing mixture of 70g, in the simulations the total mass was kept constant at 70g and the percentage by weight of the fluxing agents used in the mixture was 5 and 10%. As we have in literature that it is possible to correlate the dephosphorization factor (FDeP) with the efficiency, after made the calculation of the FDeP through the FactSage simulations, the correlation with the efficiency was done to know which the fluxes was the most efficient and what was the effect of increasing the weight percentage of the fluxes in the dephosphorizing mixture. Fluorspar proved to be the most efficient fluxe followed by the soda ash, and the highest efficiency was achieved when the weight percent of the fluxes was 5%.
