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    METHOD AND SYSTEM FOR PRODUCING METALLIC IRON NUGGETS
    2.
    发明公开
    METHOD AND SYSTEM FOR PRODUCING METALLIC IRON NUGGETS 有权
    方法和系统对铁的凝乳生产

    公开(公告)号：EP2247759A2

    公开(公告)日：2010-11-10

    申请号：EP09712738.5

    申请日：2009-01-30

    申请人： Nu-Iron Technology, LLC

    发明人： IWASAKI, Iwao ,  ENGLUND, David J. ,  KIESEL, Richard F.

    IPC分类号： C21B11/08 ,  C21B13/10

    CPC分类号： C21B13/105 ,  C21B13/0046 ,  C21B2300/04 ,  C22B1/245 ,  C22B5/10

    摘要： A method and system for producing metallic iron nuggets may include providing multiple layers of agglomerates, such as briquettes, balls and extrusions, of a reducible mixture of reducing material (such as carbonaceous material) and of a reducible iron bearing material (such as iron oxide) on a hearth material layer (such as carbonaceous material) and providing a coarse overlayer of carbonaceous material over at least some of the agglomerates. Heating the agglomerates of reducible mixture to 1425 °C or 1400 °C or 1375 °C results in formation of an intermediate product of one or more metallic iron nuggets, which may have a sulfur content of less than 0.03%, and slag, which may have less than 5% mass MgO, which may have a ratio of percent by weight sulfur in the slag over percent by weight sulfur in the metallic nuggets of at least about 12 or at least about 15.

    METHOD AND SYSTEM FOR PRODUCING METALLIC IRON NUGGETS
    8.
    发明公开
    METHOD AND SYSTEM FOR PRODUCING METALLIC IRON NUGGETS 审中-公开
    方法和系统对铁的凝乳生产

    公开(公告)号：EP2047000A1

    公开(公告)日：2009-04-15

    申请号：EP07813408.7

    申请日：2007-07-26

    申请人： Nu-Iron Technology, LLC

    发明人： IWASAKI, Iwao ,  LINDGREN, Andrew J. ,  KIESEL, Richard F.

    IPC分类号： C21B13/10

    CPC分类号： C21B13/0046 ,  C21B13/008 ,  C21B13/105

    摘要： Method and system for producing metallic nuggets includes providing reducible mixture of reducing material (such as carbonaceous material) and reducible iron bearing material (such as iron oxide) arranged in discrete portions, such as mounds or briquettes, on at least a portion of a hearth material layer (such as carbonaceous material). A coarse overlayer of carbonaceous material is provided over at least some of the discrete portions. Heating the discrete portions of reducible mixture to 1425 °C or 1400 °C or 1375 °C results in formation of an intermediate product of metallic iron nuggets and slag, and one or more metallic iron nuggets. The intermediate product with less than 5% mass MgO in the slag may have the ratio of percent by weight sulfur in the slag over percent sulfur in the metallic nuggets of at least about 12 or at least about 15. The metallic iron nuggets may have a sulfur content of less than 0.03%.

    Method and system for producing metallic iron nuggets
    10.
    发明公开
    Method and system for producing metallic iron nuggets 审中-公开
    Verfahren und System zur Herstellung von Eisenklumpen

    公开(公告)号：EP2690181A1

    公开(公告)日：2014-01-29

    申请号：EP13005096.6

    申请日：2007-07-26

    申请人： Nu-Iron Technology, LLC

    发明人： Iwasaki, Iwao ,  Lindgren, Andrew J. ,  Kiesel, Richard F.

    IPC分类号： C21B13/00 ,  C21B13/10

    CPC分类号： C21B13/0046 ,  C21B13/008 ,  C21B13/105

    摘要： Method and system for producing metallic nuggets includes providing reducible mixture of reducing material (such as carbonaceous material) and reducible iron bearing material (such as iron oxide) arranged in a plurality of discrete portions, such as mounds or briquettes, on at least a portion of a hearth material layer (such as carbonaceous material). An overlayer of turbulent gas flow disrupting material is provided over at least some of the discrete portions. Heating the discrete portions of reducible mixture to 1425 °C or 1400 °C or 1375 °C results in formation of an intermediate product of metallic iron nuggets and slag, and one or more metallic iron nuggets. The intermediate product with less than 5% mass MgO in the slag may have the ratio of percent by weight sulfur in the slag over percent sulfur in the metallic nuggets of at least about 12 or at least about 15. The metallic iron nuggets may have a sulfur content of less than 0.03%.

    摘要翻译： 用于生产金属块的方法和系统包括在至少一部分上提供排列成多个离散部分如土堆或压块的还原材料（例如碳质材料）和可还原铁轴承材料（例如氧化铁）的可还原混合物 的炉床材料层（如碳质材料）。 在至少一些离散部分上设置湍流气流破裂材料的覆盖层。 将可还原混合物的分散部分加热到1425℃或1400℃或1375℃导致形成金属铁块和炉渣的中间产物以及一种或多种金属铁块。 在炉渣中具有小于5％质量MgO的中间产物可以具有至少约12或至少约15的金属块中的硫中硫的比例（重量百分比）超过硫的比例。金属铁块可以具有 硫含量小于0.03％。