This study aimed to investigate the production of rock wool using slag from the production of ferrosilicon manganese alloys. The waste in question has chemical characteristics that indicate the possibility of adding this in formulations of mineral wool. There has been melting the slag in an electric arc furnace in laboratory scale. The slag was melted and poured at a temperature of 1450 ºC in a container with water, aiming at a rapid cooling and thus an approximation of the method of production of rock wool. Samples of rock wool produced were characterized by techniques of chemical analysis, X-ray diffraction, scanning electron microscopy and differential thermal analysis is that the results were compared to those found in the literature. The results show that the recycling of waste for the production of rock wool is promising, for the reuse of slag from ferrosilicon manganese allows the conversion of waste products through the incorporation of waste in the production of rock wool, which has broad market as insulation thermal, acoustic and inhibiting the spread of flames.
slag; recycling; rock wool
