Process for purifying metals by insufflation and product produced thereby
    1.
    发明授权
    Process for purifying metals by insufflation and product produced thereby 失效
    通过吹入净化金属的方法和由此产生的产物

    公开(公告)号:US4568386A

    公开(公告)日:1986-02-04

    申请号:US708277

    申请日:1985-03-05

    IPC分类号: C21C5/34 C21C7/068 C21C7/00

    CPC分类号: C21C5/34 C21C7/068

    摘要: A process for refining pig iron from below the surface of a molten metal bath, and the resulting product, in which an oxidizing gas is injected in the bath and, during the last refining stage, a mixture of oxidizing gas and inert gas is further injected. The inert gas content x of the mixture is made to vary according to a law corresponding to an oxidizing gas dilution curve that is located in an area determined by two envelope curves, to wit, a first maximum dilution curve defined by the straight line portions:x=-766.7 %C+168.7 for 0.16

    摘要翻译: 一种从熔融金属浴表面下方精炼生铁的方法,以及所得产物,其中在浴中注入氧化气体,并且在最后一个精炼阶段进一步注入氧化气体与惰性气体的混合物 。 混合物的惰性气体含量x根据对应于氧化气体稀释曲线的定律而变化,氧化气体稀释曲线位于由两条包络曲线确定的区域中,以及由直线部分限定的第一最大稀释曲线: 对于0.1%C,0.1%C <0.16×= -233%C + 102,0.16%C <0.22×= -550%C + 134的x = -766.7%C + 168.7和定义的第二最小稀释曲线 直线部分:对于0.05 <%C,对于0.1 <%C <0.14×= -230%C + 84,0.14≤C≤0.07×= -400%C + 101的x = -1500%C + 255 < 对于%C <0.1,0.1×= -72.5。