Title

AVALIAÇÃO DA REVERSÃO DE ENXOFRE VARIANDO A COMPOSIÇÃO DAS MISTURAS DESSULFURANTES

EVALUATION OF SULFUR REVERSION VARIATING THE COMPOSITION OF DESULFURANT MIXTURES

Authorship

Klippel, Cynara Christ

Klippel, Cynara Christ

I am this author

DOI

10.5151/2594-5300-34856

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Abstract

O OBJETIVO DESTE TRABALHO FOI ESTUDAR A INFLUêNCIA DAS MATERIAS-PRIMAS UTILIZADAS NA PRODUçãO DE AçO NO BOF NO AUMENTO DO TEOR DE ENXOFRE DO AçO (PICK UP DE ENXOFRE). PARA ANáLISES DAS MATéRIAS-PRIMAS FORAM REALIZADOS TESTES COM DIFERENTES MISTURAS A BASE DE: CAO E MGO A PROPOSTA PARA FORMULAçãO DAS MISTURAS FOI MANTER A MASSA DE ESCóRIA FINAL, E VARIAR A QUANTIDADE DE CADA MATERIAL A SER ADICIONADO, CONFORME ELE é ADICIONADO INDUSTRIALMENTE. PARA CADA EXPERIMENTO FOI VERIFICADO A VARIAçãO DO ENXOFRE AO LONGO DO TEMPO DO EXPERIMENTO. OBSERVOU-SE QUE AS MISTURAS COM BASICIDADE 3,2 APRESENTARAM MENOR REVERSãO DE ENXOFRE, POIS OBTIVERAM: ATIVIDADE DO CAO IGUAL A 1, MAIOR PORCENTAGEM DE FASE SóLIDA E VISCOSIDADE E MENOR TEOR DE ENXOFRE DE EQUILIBRIO

THE OBJECTIVE OF THIS WORK WAS TO STUDY THE INFLUENCE OF RAW MATERIALS USED IN THE PRODUCTION OF STEEL IN BOF ON THE INCREASE IN THE SULFUR CONTENT OF STEEL. FOR ANALYSIS OF THE RAW MATERIALS, TESTS WERE CARRIED OUT WITH DIFFERENT MIXTURES BASED ON CAO AND MGO THE PROPOSAL FOR INFORMATION ON THE MIXTURES WAS TO MAINTAIN THE FINAL SLAG MASS, AND VARY THE AMOUNT OF EACH MATERIAL TO BE ADDED, AS IT IS INDUSTRIALLY ADDED. FOR EACH EXPERIMENT, THE VARIATION OF SULFUR OVER THE TIME OF THE EXPERIMENT WAS VERIFIED. IT WAS OBSERVED THAT THE MIXTURES WITH BASICITY 3.2 LOWER SULFUR REVERSION, AS THEY OBTAINED: CAO ACTIVITY EQUAL TO 1, HIGHER PERCENTAGE OF SOLID PHASE AND VISCOSITY AND LOWER EQUILIBRIUM SULFUR CONTENT. IT WAS OBSERVED THAT THE MIXTURES WITH BASICITY 3.2 LOWER SULFUR REVERSION, AS THEY OBTAINED: CAO ACTIVITY EQUAL TO 1, HIGHER PERCENTAGE OF SOLID PHASE AND VISCOSITY AND LOWER EQUILIBRIUM SULFUR CONTENT.

Keywords

rEVERSÃO DE eNXOFRE, Aço, Dessulfuração, Termodinâmica computacional

Sulfur reversion, Steel, Desulfurization, Computational thermodynamics