摘要
提出了一种通过碳热还原法同时利用转炉污泥中的Fe和多种微量过渡金属元素(Mn、Cr、V和Ti)制备微合金化铁粉的方法,对影响产物组成的工艺参数进行了实验优化。结果表明:在还原温度1350℃、还原时间2h时,转炉污泥中铁的回收率达92%以上,所得微合金化铁粉含铁量97%以上,微量合金元素Mn、V、Cr、Ti总含量为1.788%,杂质元素含量为0.598%。所得微合金化铁粉可作为制备铁基复合材料的原料。
A route for simultaneous recovery of Fe and multiple transition metals（Mn,Cr,V and Ti） from converter sludge by carbothermic process to prepare microalloyed iron powder is proposed.The parameters influencing the constituents of the sludge-derived microalloyed iron powder,deoxidizing temperature and time,is optimized.The results indicate that the recovery rate of iron from the sludge is over 92 % at 1350 ℃ 2 h,and the micoalloyed iron powder with about 97 wt% Fe and 1.788 wt% alloying elements（Mn＋Cr＋Ti＋V） is obtained,with impurity elements 0.598 wt%.Such a product can be used as a raw material for preparing the ferrous matrix composites.
出处
《广东化工》
CAS
2013年第9期16-17,9,共3页
Guangdong Chemical Industry
关键词
转炉污泥
碳热还原
微合金化铁粉
磁分离
converter sludge
carbothermal reduction
microalloyed iron powder
magnetic separation
