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The global steel industry is facing a period of oversupply, thus companies need to reduce costs by improving processes and/or by using alternative raw materials. This work focuses precisely about this topic and seeks to replace the fluorite by another source of slag flux. In this paper, boron oxide was added to synthetic slags at 1600°C in a steel bath. Tests were carried out using 3%, 5% and 7% of boron oxide in the composition of the slag. The fusion was performed under an argon inert atmosphere in an electrical furnace with molybdenum disilicide resistance. Steel samples were removed periodically each 5 minutes until 25 minutes of the experiment. These samples were analyzed by an infrared spectrometer. The results showed the technical feasibility of boron oxide application as a substituent of fluorite.

UTILIZAÇÃO DE ÓXIDO DE BORO COMO FLUXANTE DE ESCÓRIAS SINTÉTICAS DESSULFURANTES