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1.概况稀土硅铁合金(RESIFE合金)——1~#合金,是用于钢铁和制备铸造用球化剂、孕育剂和蠕化剂的重要合金原料。三中全会以来,江苏已跃居为全国生产1~#合金第二位的省份。每年有近万吨冶炼稀土硅铁合金炉渣产生,综合利用这种炉渣不但有利三废处理,而且是节约稀土资源的重要途径。其合金渣的主要成份为CaO50～60％,SiO20～25％,稀土2～3％,以及铁、铜、锌、镁等微量元素。这种炉渣直接回收或回炉是没有什么价值的,如果按每年10000吨炉渣计,则有近300
1. Overview Rare-earth ferrosilicon alloy (RESIFE alloy) - 1 ~ # alloy is used for steel and casting preparation of nodulizer, inoculant and vermiculite important alloy raw materials. Since the Third Plenary Session, Jiangsu has leapt to the province for the production of No.1 ~ # alloy in the country. Each year nearly 10,000 tons of rare earth ferrosilicon smelting slag production, comprehensive utilization of this slag not only beneficial to the three wastes treatment, but also an important way to save rare earth resources. The alloy slag is mainly composed of 50-60% of CaO, 20-25% of SiO, 2-3% of rare earth, and trace elements such as iron, copper, zinc and magnesium. This type of slag is of little value for direct recovery or remelting, with nearly 300