We investigated the effect of Al₂O₃ content on the viscosity of CaO-SiO₂-Al₂O₃-8wt%MgO-1wt%Cr₂O₃ (mass ratio of CaO/SiO₂ is 1.0, and Al₂O₃ content is 17wt%–29wt%) slags. The results show that the viscosity of the slag increases gradually with increases in the Al₂O₃ content in the range of 17wt% to 29wt% due to the role of Al₂O₃ as a network former in the polymerization of the aluminosilicate structure of the slag. With increases in the Al₂O₃ content from 17wt% to 29wt%, the apparent activation energy of the slags also increases from 180.85 to 210.23 kJ/mol, which is consistent with the variation in the critical temperature. The Fourier-transform infrared spectra indicate that the degree of polymerization of this slag is increased by the addition of Al₂O₃. The application of Iida’s model for predicting the slag viscosity in the presence of Cr₂O₃ indicates that the calculated viscosity values fit well with the measured values when both the temperature and Al₂O₃ content are at relatively low levels, i.e., the temperature range of 1673 to 1803 K and the Al₂O₃ content range of 17wt%–29wt% in CaO-SiO₂-Al₂O₃-8wt%MgO-1wt%Cr₂O₃ slag.

我们研究了Al ₂ O ₃含量对CaO-SiO ₂ -Al ₂ O ₃ -8wt％MgO-1wt％Cr ₂ O ₃（CaO / SiO _2的质量比为1.0，Al ₂ O ₃的粘度）的影响。含量为17wt％–29wt％的炉渣。结果表明，由于Al ₂ O ₃作为铝硅酸盐结构聚合中的网络形成剂，Al ₂ O ₃在17wt％至29wt％的范围内随Al ₂ O ₃含量的增加而逐渐增加。炉渣。随着Al ₂ O的增加₃含量从17wt％增加到29wt％，炉渣的表观活化能也从180.85 kJ / mol增加到210.23 kJ / mol，这与临界温度的变化是一致的。傅立叶变换的红外光谱表明，通过添加Al ₂ O ₃可以提高这种炉渣的聚合度。Iida模型在Cr ₂ O ₃存在下预测炉渣粘度的应用表明，当温度和Al ₂ O ₃含量均处于较低水平（即温度）时，计算出的粘度值与测量值非常吻合范围为1673至1803 K和Al ₂ O ₃CaO-SiO ₂ -Al ₂ O ₃ -8wt％MgO-1wt％Cr ₂ O ₃炉渣中的含量范围为17wt％–29wt％。