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    • 1. 发明授权
    • Method of treating the slag from a copper converter
    • 从铜转炉处理炉渣的方法
    • US4707185A
    • 1987-11-17
    • US823631
    • 1986-01-29
    • Takayoshi KimuraSeiichi TsuyuguchiYoshiaka Mori
    • Takayoshi KimuraSeiichi TsuyuguchiYoshiaka Mori
    • C22B7/04C22B15/00C22B15/04C22B15/06
    • C22B15/006C22B15/0036C22B15/0043C22B15/0054
    • A method of treating the slag from a copper converter comprises introducing the molten slag from a copper converter into a furnace having tuyeres through which air can be blown into the molten slag, blowing into the slag through the tuyeres at least 6% by weight of pulverized coal with air or oxygen-enriched air having an oxygen content of 21 to 40% by volume to separate molten metallic copper from the slag, the amount of the air having a ratio of 0.3 to 0.7 to theoretical combustion of the coal, adding a source of sulfur to the separated copper to form a molten matte, maintaining the matte at a reduced pressure not exceeding 0.6 mm Hg for at least five minutes in a vacuum refining apparatus to remove impurities from the matte by volatilization, and treating the refined matte in a copper converter used for the treatment of a matte produced by a smelting furnace.
    • 从铜转化器处理炉渣的方法包括将来自铜转炉的熔渣引入到具有风口的炉子中,空气可以通过该风口吹入熔渣中,通过风嘴吹入至少6重量%粉碎的炉渣中 煤与空气或富氧空气的氧含量为21至40体积%以将熔融的金属铜与炉渣分离,空气的量与煤的理论燃烧比例为0.3至0.7,添加源 的硫分散到分离的铜以形成熔融的哑光,在真空精炼装置中将锍保持在不超过0.6mm Hg的压力下至少5分钟,以通过挥发除去锍中的杂质,并将处理的精细锍 铜转炉用于处理冶炼炉生产的无光泽。