碳化钛不仅在硬质合金和耐热高强度合金制造过程中占有重要地位,而且在高炉冶炼钒钛磁铁矿或电炉熔炼高钛渣的过程中,都因生成钛的碳氧化物和碳化物而使渣变稠,放渣困难,渣与金属不易分离,破坏炉子的正常操作。近年来国内外的研究工作者对Ti—C—O三元系进行了不少的研究,但是,对高温条件下用碳还原TiO_2的物理化学研究却为数很少,而且实验结果也不一致。本文是对高温还原的热力学和动力学方面的问题进行研究。 Titanium carbide not only plays an important role in the manufacture of cemented carbide and heat-resistant high-strength alloys, but also produces titanium oxide and carbide in the process of smelting vanadium titanomagnetite or high-temperature titanium slag in a blast furnace, Leaving the slag thicker, slag residue difficult, slag and metal is not easy to separate, undermining the normal operation of the stove. In recent years, researchers at home and abroad have done a lot of research on the Ti-C-O ternary system. However, there are only a few physical and chemical studies on the reduction of TiO_2 with carbon under high temperature, and the experimental results are inconsistent. This article studies the thermodynamic and kinetic aspects of high temperature reduction.