高炉瓦斯灰锌铁分离及其动力学研究  

Study on the separation experiments and kinetics of zinc and iron in blast furnace gas ash

作　　者：陈书文[1] 田晨[1] 李杰[1] Chen Shuwen Tian Chen Li Jie(School of Materials and Metallurgy, University of Science and Technology Liaoning ,Anshan 114051 Liaoning)

机构地区：[1]辽宁科技大学材料与冶金学院,辽宁鞍山114051

出　　处：《烧结球团》2017年第5期39-43,共5页Sintering and Pelletizing

基　　金：国家自然科学基金(NO.51674139)

摘　　要：本文针对某高炉瓦斯灰,对其含碳球团的还原焙烧脱锌过程中锌铁分离的效果以及反应过程中的动力学状态进行研究。结果表明:在瓦斯灰的锌、铁还原实验过程中,其失重率、脱锌率以及金属化率均与其还原温度和还原时间的升高成正比。当还原温度大于1 050℃并且反应15 min下,其瓦斯灰中锌基本脱除。并且在还原过程前期,其动力学方程为ln[1-r(t)]=-133.03.73e^(-144.26/RT)t,而在后期则是:ln[1-r(t)^(1/3)]~2=12436.61e^(-177.65/RT)t。In this paper, the effect of zinc separation and dynamic state about the reduction roasting process of carbon bearing pellets in blast furnace gas ash was studied. The results show that the rate of weight loss, zinc removal and metallization were proportional to the reduction temperature and reduction time. When the reduction temperature is above 1 050 ℃ for 15 min, the zinc in the gas ash is mostly removed. Meanwhile, in the early stage of reduction reaction, the kinetic equation is ln[1-r（t）]=-133.03.73e^-144.26/RTt, whereas later the reduction reaction equation becomes ln[1-r（t）^1/3]^2=12436.61e^-177.65/RTt.

关 键 词：瓦斯灰 脱锌 动力学 

分 类 号：TF523[冶金工程—钢铁冶金]