摘要
介绍了用直流电热法从攀钢高炉钛渣中冶炼钛硅合金的工艺。研究了电硅热法冶炼钛硅合金时渣中TiO2的还原贫化规律和直流电对钛硅合金冶炼的作用,用直流电硅热法可生产含Ti20%左右的钛硅合金,钛回收率小于60%.开发了直流电硅铝热法生产钛硅合金工艺,采用直流电硅铝热法可生产含Ti>30%、Si<35%的钛硅合金,钛回收率大于80%,铁硅合金可部分取代钛铁用于炼钢,还原残渣可用于制水泥。
The new process for semiting Ti-Si ferroalloy using Panzhihua Iron & Steel Company (PISC) blast furnace titaniferous slag is introduced. The reduction and impoverishment law of TiO2 in slag and the effects of DC on smelting Ti-Si ferroalloy are studied when smelting Ti-Si ferroalloy by electrosilicothermal method,Ti-Si ferroalloy containing about 20% Ti can be produced by electrosilicothermal method. and Ti recovery rate is less than 60 %. And then, electrosilicoaluminothermal method is developed, by which Ti-Si ferroalloy containing Ti more than 30% and Si less than 35 % can be produced, and Ti recovery rate is higher than 80%. Ti-Si ferroalloy can replace TiFe martially in steelmaking,and residue slag can be used to make cement.
出处
《重庆大学学报(自然科学版)》
CAS
CSCD
1996年第4期82-86,共5页
Journal of Chongqing University
关键词
钛渣
直流电
电热法
钛铁
高炉
钛硅合金
s:titanium slags
direct current
electrothermal process
ferrotitanium/blast furnace titaniferous slag
Ti-Si ferroalloy