Abstract: Smelting to local condition can be used for full application of chine-se poor manganous ore, and this process probably provides a new variety of B.F ferro-alloy.
This industrial experiment was based on therotical investigation and carried out with a small B. F. of 36m³. The test shows that the smelting Si-Mn ferro-alloy of 12-14% Si content in blast furnace with oxygen enriched blast is success technically and beneficial economically in Chinese condition.