The dissolution of Al₂O₃ particles in CaO-Al₂O₃-SiO₂ slags was investigated by confocal scanning laser microscope at the temperature range from 1723 K to 1853 K. It was found that the rate-limiting step was the diffusion in the liquid slag. The dissolution of Al₂O₃ particles in CaO-Al₂O₃-SiO₂ slags with various temperatures, CaO/Al₂O₃, and CaO/SiO₂ in slag was in situ observed. Increasing the C/A and C/S of slag promoted the absorption of Al₂O₃ inclusions by the CaO-Al₂O₃-SiO₂ slag, but only if the slag was pure liquid at the refining temperature. A model related to dissolution driving force and slag viscosity was shown to be v = 18.716 × ΔC/η to predict the dissolution rate of Al₂O₃. Effective binary diffusion coefficients for various CaO-Al₂O₃-rich slags were obtained using the developed model. The dissolution rate of Al₂O₃ in CaO-Al₂O₃-SiO₂ slags with low SiO₂ content at the steelmaking temperature was predicted.

在 1723 K 至 1853 K 的温度范围内，通过共聚焦扫描激光显微镜研究了Al ₂ O ₃颗粒在 CaO-Al ₂ O ₃ -SiO ₂渣中的溶解。发现限速步骤是在液态炉渣。原位观察到Al ₂ O ₃颗粒在不同温度的CaO-Al ₂ O ₃ -SiO ₂炉渣、CaO/Al ₂ O ₃和CaO/SiO ₂炉渣中的溶解。提高渣的C/A和C/S促进Al ₂ O的吸收₃夹杂物由 CaO-Al ₂ O ₃ -SiO ₂渣组成，但前提是渣在精炼温度下为纯液体。与溶解驱动力和炉渣粘度相关的模型显示为v = 18.716 × Δ C / η以预测 Al ₂ O ₃的溶解速率。使用开发的模型获得了各种富含 CaO-Al ₂ O _{3 的}炉渣的有效二元扩散系数。Al ₂ O ₃在CaO-Al ₂ O ₃ -SiO ₂低SiO ₂渣中的溶解速率 预测炼钢温度下的含量。