Title

INFLUÊNCIA DA CAPACIDADE DE FOSFATO, PARTIÇÃO DE FÓSFORO E PROPRIEDADES DA ESCÓRIA NA EFICIÊNCIA DE DESFOSFORAÇÃO DE AÇO EM FEA

INFLUENCE OF PHOSPHATE CAPACITY, PHOSPHORUS PARTITION AND SLAG PROPERTIES ON STEEL DEPHOSPHORIZATION EFFICIENCY IN EAF

Authorship

MOREIRA, DIEGO DARVY; OLIVEIRA, JOSÉ ROBERTO DE; ANDREATA, VINICIOS

MOREIRA, DIEGO DARVY

I am this author

OLIVEIRA, JOSÉ ROBERTO DE

I am this author

ANDREATA, VINICIOS

I am this author

DOI

10.5151/2594-5300-41424

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Abstract

O PRESENTE TRABALHO TEM COMO OBJETIVO ESTUDAR, UTILIZANDO DADOS INDUSTRIAIS, A INFLUêNCIA DA CAPACIDADE DE FOSFATO (CP), DA PARTIçãO DE FóSFORO (LP) E DAS PROPRIEDADES DA ESCóRIA NO PROCESSO DE DESFOSFORAçãO EM FEA. FORAM ANALISADOS

THE PRESENT PAPER AIMS TO STUDY, USING INDUSTRIAL DATA, THE INFLUENCE OF PHOSPHATE CAPACITY (CP), PHOSPHORUS PARTITION (LP) AND SLAG PROPERTIES ON THE EAF DEPHOSPHORIZATION PROCESS. DIFFERENT INDUSTRIAL HEATS WITH DIFFERENT SLAG COMPOSITIONS WERE ANALYZED. THE AFOREMENTIONED SLAG PROPERTIES AND PHASES WERE DETERMINED BY COMPUTATIONAL THERMODYNAMICS USING FACTSAGE 8.0 SOFTWARE. IN THIS STUDY, THE CLASSICAL THERMODYNAMIC MODELS WERE USED TO EVALUATE THE DEPHOSPHORIZATION EFFICIENCY WITH THE SAME INDUSTRIAL DATA. ALTHOUGH THESE EXPRESSIONS, DEDUCED FROM EQUILIBRIUM DATA, GENERALLY DO NOT CORRELATE WELL WITH INDUSTRIAL DATA. THE DEPHOSPHORIZATION FACTOR (FDEP) PARAMETER, WHICH MEASURES THE EFFICIENCY OF A SLAG BASED ON ITS PROPERTIES, WAS USED TOGETHER WITH THE PHOSPHATE CAPACITY AND PHOSPHORUS PARTITION TO COMPARE WHICH INDUSTRIAL SLAG IS BEST FOR DEPHOSPHORIZATION. IT WAS FOUND THAT FDEP HAS A HIGH CORRELATION WITH DEPHOSPHORIZATION EFFICIENCY, UNLIKE THERMODYNAMIC MODELS, THEREFORE, IT CAN BE USED TO PREDICT WHICH INDUSTRIAL SLAG WILL BE MORE EFFICIENT AND ALSO SUPPORT THE TECHNICAL TEAM IN PROPOSING IMPROVEMENTS TO THE PRODUCTION PROCESS.

Keywords

fea; capacidade de fosfato; partição de fósforo; factsage

EAF; Phosphate capacity; Phosphorus partition; FactSage