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Effect of TiO_2 on the Viscosity and Slag Structure in Blast Furnace Type Slags

机译：TiO_2对高炉型炉渣黏度和炉渣结构的影响。

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摘要

TiO_2 additions up to 10mass% behaved as a basic oxide and lowered the viscosity in the CaO-SiO_2-17mass% Al_2O_3-10mass% MgO-based slags by depolymerizing the silicate network structure. Raman spectroscopy revealed the sum of NBO/Si 1 and 3 decreased while the sum of NBO/Si 2 and 4 increased with TiO_2 content. Unlike the silicate structures, the aluminate structures seems to be relatively unaffected by TiO_2 additions according to the FTIR results. 5mass% TiO_2 significantly decreased the viscosity compared to the TiO_2 free slags, but beyond 5mass% TiO_2 meaningful changes in the viscosity was not observed. From the comparison of the viscosity at constant TiO_2 of 5 and 10mass% and varying CaO/SiO_2 ratio, increasing the CaO/SiO_2 ratio was more effective in decreasing the viscosity than TiO_2 additions.
机译：通过解聚硅酸盐网络结构，添加至多10mass％的TiO_2表现为碱性氧化物，并降低了CaO-SiO_2-17mass％Al_2O_3-10mass％MgO基炉渣的粘度。拉曼光谱显示，随着TiO_2含量的增加，NBO / Si 1和3的总和减少，而NBO / Si 2和4的总和增加。与硅酸盐结构不同，根据FTIR结果，铝酸盐结构似乎不受TiO_2添加的影响。与不含TiO_2的炉渣相比，5质量％的TiO_2显着降低了粘度，但是超过5质量％的TiO_2没有观察到粘度的有意义的变化。通过比较恒定的TiO_2为5％和10mass％以及改变的CaO / SiO_2比时的粘度，增加CaO / SiO_2的比例比添加TiO_2更有效地降低了粘度。

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