This paper reported the calculation of the reaction heat in titanium-bearing blast furnace slag (abbreviated as TBFS)-H₂SO₄ system based on estimation of thermodynamic data of CaTiAl₂O₆ by mechanical mixture model. The thermodynamic analysis indicated that CaTiAl₂O₆ was more stable than the corresponding ternary oxides as CaO·TiO₂, CaO·Al₂O₃, and Al₂O₃·TiO₂. TBFS-H₂SO₄ system was highly exothermic since all of the reactions involved in the system were exothermic. For example, the increase of temperature from 25 to 200°C led to the increase of the release of the reaction heat in TBFS (100.0g)-H₂SO₄ system from 181.28 to 189.73kJ. Eighty-five to 90% of the reaction heat in TBFS-H₂SO₄ system was contributed by the reactions among CaTiAl₂O₆, CaTiO₃, CaMgSi₂O₆, and H₂SO₄.

本文利用机械混合模型估算CaTiAl ₂ O ₆的热力学数据，报道了含钛高炉矿渣（缩写为TBFS）-H ₂ SO ₄体系中反应热的计算。热力学分析表明，CaTiAl ₂ O ₆比相应的三元氧化物CaO·TiO ₂，CaO·Al ₂ O ₃和Al ₂ O ₃ ·TiO _2稳定。TBFS-H ₂ SO ₄由于系统中涉及的所有反应都是放热的，因此该系统是高度放热的。例如，温度从25°C升高到200°C，导致TBFS（100.0g）-H ₂ SO ₄系统中反应热的释放从181.28增加到189.73kJ。在的TBF-H的反应热的八十五到90％₂ SO ₄系统CaTiAl中贡献的反应₂ Ó ₆，的CaTiO ₃，的CaMgSi ₂ ö ₆ H，和₂ SO ₄。