ResumoO carbureto de cálcio tem sido empregado em novas tecnologias para desoxidação e dessulfuração de aços de maneira crescente. A metodologia consiste na realização de um cronograma de projeto contendo dez atividades. Nos últimos anos houve aumento em cerca de 30% na utilização de carbureto de cálcio na metalurgia secundária das usinas brasileiras. Além desse expressivo aumento, vários trabalhos técnicos são apresentados todos os anos atestando as eficiências técnica, energética e financeira do carbureto de cálcio na produção de aço. Palavras-chave: Carbureto de cálcio; Refino secundário; Produtividade. INCREASING EMPLOYMENT OF CALCIUM CARBIDE IN BRAZILIAN SECONDARY REFINIG STEEL AbstractCalcium carbide has been used in new technologies deoxidation and desulfurization of steel in an increasing manner. The methodology consists in the realization of a project implementation schedule containing ten distinct activities. In recent years there has been an increase of approximately 30% in the use of calcium carbide in the secondary refining of Brazilian plants. In addition to this significant increase, several technical papers are presented each year certifying the technical, financial and energy efficiencies of calcium carbide in the steel production.
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