钛渣酸解率降低原因及对策分析  

Analysis on reasons and countermeasures for the reduced acidolysis rate of titanium slag

作　　者：肖军[1] 李凯茂[1] 王海波[1] Xiao Jun;Li Kaimao;Wang Haibo(State Key Laboratory for Comprehensive Utilization of Vanadium and Titanium Resources,Pangang Group Research Institute Co.,Ltd.,Panzhihua 617000,China)

机构地区：[1]攀钢集团研究院有限公司钒钛资源综合利用国家重点实验室,四川攀枝花617000

出　　处：《轻金属》2023年第3期40-43,共4页Light Metals

摘　　要：针对某钛渣厂生产的钛渣酸解率降低问题,开展钛渣主要化学成分、矿相结构、还原程度、生产工艺等多方面综合分析。结果表明:钛渣成分、金红石含量、晶粒尺寸等与本次钛渣酸解率降低没有直接关系;钛铁矿相、硅酸盐相及黑钛石相相互夹杂比例增加是该批次钛渣酸解率降低的主要原因。通过优化捣炉时机、强化冶炼过程控制、延长精炼及冷却时间等措施,钛渣现场应用时,酸解率均值由86.2%提升至93%以上,提升效果明显。With respect to problem of the reduced acidolysis rate of titanium slag in a plant,a comprehensive analysis was conducted for the main chemical composition,mineral phase structure,reduction degree and production process of the titanium slag.The results show that the composition,rutile content and grain size of titanium slag are not directly related to the reduced acidolysis rates of titanium slag.The increased proportion of ilmenite,silicate and anosovite inclusions is the main reason for the reduced acidolysis rate of titanium slag in this batch.Through the measures of optimizing the pounding time,strengthening the smelting process control,extending the refining and cooling time,the average acidolysis rate of the titanium slag increased from 86.2%to above 93%,with obvious effect achieved as a result.

关 键 词：钛渣 酸解率 冶炼 

分 类 号：TF111[冶金工程—冶金物理化学] TF823