A stable blast-furnace operation is strongly associated with the performance of tap hole clay, which is usually damaged by the combined effect of slag corrosion and pig iron erosion. As such scenario has recently become more challenging due to the use of cheaper raw-materials and low-
cost operational practices, Saint-Gobain developed a high-performance solution based on an innovative tap hole clay with a graphene-like structure. Owing to an outstanding chemical resistance and, consequently, a stable mushroom and metal flow, such technology allows operations with reduced fuel consumption, helping to reduce the CO2 emissions and the refractory usage in the ironmaking area.

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Deivison Carlos Fontes Hespanhol, Saint-Gobain Performance Ceramics and Refractories,
Brazil.
Eric Yoshimitsu Sako, Saint-Gobain Performance Ceramics and Refractories, Brazil.
Heloisa Daltoso Orsolini, Saint-Gobain Performance Ceramics and Refractories, Brazil.
Bianca Maria Gomes da Silva, Saint-Gobain Performance Ceramics and Refractories, Brazil.
Douglas Fernando Galesi, Saint-Gobain Performance Ceramics and Refractories, Brazil.