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    • 10. 发明申请
    • METHOD FOR TREATING STAINLESS STEEL REFINING SLAG
    • 用于处理不锈钢精炼渣的方法
    • WO00053539A1
    • 2000-09-14
    • PCT/JP2000/001235
    • 2000-03-02
    • C04B5/06C21C5/00C21C5/28C21C5/54C21C7/00C21C7/068C22B7/04F27D15/00
    • C04B5/06C04B2111/1075C21C5/005C21C5/54C21C7/0685C22B7/04Y02P10/216
    • A method for treating a stainless steel refining slag which comprises treating a slag generated in a refining process for stainless steel so as for the slag to have a basicity of 1.3 to 4.0 and then mixing the slag in molten state with a substance containing a sulfur having a valency of zero or a negative value in an amount such that the slag has a sulfur content of 0.2 wt % or more. The method can be used for modifying the above slag so that Cr does not elute from the plug substantially perfectly, which results in the effective use of the slag as a material of a pavement base which is free from the danger of environmental pollution. It is preferred for efficient modification that the cooling of the slag mixed with the sulfur-containing substance from 1200 DEG C to 400 DEG C is carried out rapidly, i.e, within a time of 48 hrs.
    • 一种处理不锈钢精炼渣的方法,该方法包括处理在不锈钢精炼过程中产生的炉渣,以使炉渣具有1.3至4.0的碱度,然后将熔融状态的炉渣与含有硫的物质混合, 化合价为零或负值,使得炉渣的硫含量为0.2重量%以上。 该方法可用于改性上述炉渣,使得Cr <6+>基本上完全不会从插塞中洗脱,这导致有效利用炉渣作为无环境危险的路面基材的材料 污染。 优选与1200℃〜400℃的含硫物质混合的炉渣的冷却快速进行,即48小时以内进行高效的改性。