关键词: 还原铁粉, 赤铁矿, 磁铁矿, 金属化率

Abstract: The reduction of solid ferric oxide is a necessary step for producing reduced iron powder. Carbon reduction at solid state of hematite and magnetite by various reducers are investigated. The results show that the reduction temperature and time have remarkable effect on the metallization rate of reduced iron powder. Under the same conditions, hematite is easier to be reduced than magnetite. The research results also indicates that the adoption of a proper reducer can greatly reduce the reduction temperature and also shorten the time of reduction, thus decreasing the production energy consumption and cost and gaining a better economic performance.