| 摘要 |
<p>PURPOSE:To obtain high purity phosphor iron contg. reduced amounts of Si, Al, C, Ca and Mn by subjecting phosphate ore, silica, a carbonaceous reducing agent and raw material bearing iron to reduction smelting in an electric furnace, adding a flux to the resulting molten phosphor iron and agitating them. CONSTITUTION:Phosphate ore, silica, a carbonaceous reducing agent and raw material bearing iron are subjected to reduction smelting in an electric furnace. A flux contg. >=10wt% P2O5 is added to the resulting molten phosphor iron and agitated to obtain high purity phosphor iron having a composition consisting of, by weight, 15-30% P, <1% Si, <1% Mn, <0.1% Al, <0.1% Ca, <0.1% C and the balance Fe with inevitable impurities.</p> |
