为了充分开发利用我国储量丰富、品位较低和难处理的铁矿石，作者对其进行了煤基直接还原生产高纯铁粉的研究，提出煤基直接还原→渣铁分离→高纯铁粉新的工艺流程．试验中所得的高纯铁产品中含铁量均在９７％以上．由于高纯铁粉的利用价值更高，所以该工艺为合理利用我国大量尚未开发的低品位难选难冶铁矿石提供了一种新途径． In order to fully exploit and utilize our country’s abundant iron ore with low grade and refractory properties, the author studied the direct reduction of coal-based high-purity iron powder and proposed a new process of coal-based direct reduction → slag-iron separation → high-purity iron powder . The iron content of the high-purity iron products obtained in the experiment is above 97%. Due to the higher utilization value of high-purity iron powder, the process provides a new way for rational utilization of a large amount of undeveloped low-grade refractory iron ore in our country.