碳化攀钢高炉渣低温选择氯化的热力学分析

Thermodynamic Analysis on the Selective Chlorination of Carbonized Pangang BF Slag at Low Temperature

摘要:

从热力学角度对碳化攀钢高炉渣的氯化反应进行了分析，指出氧气参与氯化反应是保证实现TiC选择性氯化的重要条件，不仅可降低氯气的耗量，而且对解决氯化残渣的出路有重要意义。对碳化渣低温氯化和高钛渣高温加碳氯化的热平衡进行了计算和比较，指出解决大型氯化设备上的热平衡和局部过热以及氯化反应的可控制性是决定碳化渣低温氯化成败的关键所在。

Abstract:

Detailed thermodynamic analysis of the chlorination reaction of carbonized Pangang BF slay is carried out It is pointed out that oxygen taken part in the chlorination reaction is an important condition of selective chlorination of TiC. Not only could the consumption of chlorine be decreased, but could the residue after chlorination be utilized as well. Heat equilibrium of the chlorination of carbonized BF slag at low temperature and of the carbochlorination of high grade titaniferous slag is calculated and compared. Solving the problems of heat equilibrium and local superheat of large-scale chlorination equipment as well as the controllability of chlorination reaction is the key to decide whether the low temperature chlorination of carbonized BF slag will succeed or not.