The technological differences of smelting RE ferrosilicon between using Baotou RE concentrate and using Sichuan Mianning RE concentrate were introduced in the study.

• 本文着重介绍了在冶炼稀土合金时,使用四川冕宁矿与包头稀土精矿在实际生产中的差异性,并分析了原因,从经济效益角度粗略探讨它们使用的合理性。