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    METHOD FOR RECLAIMING IRON AND PHOSPHORUS FROM STEELMAKING SLAG
    5.
    发明公开
    METHOD FOR RECLAIMING IRON AND PHOSPHORUS FROM STEELMAKING SLAG 审中-公开
    从炼钢渣中回收铁和磷的方法

    公开(公告)号：EP3239308A1

    公开(公告)日：2017-11-01

    申请号：EP17171814.1

    申请日：2009-12-22

    申请人： JFE STEEL CORPORATION

    发明人： KIKUCHI, Naoki ,  MATSUI, Akitoshi ,  TAKAHASHI, Katsunori ,  TOBO, Hiroyuki ,  KISHIMOTO, Yasuo

    IPC分类号： C21C5/28 ,  C04B5/06 ,  C21C1/02 ,  C22B1/16

    CPC分类号： C22B7/04 ,  C04B5/06 ,  C21B3/06 ,  C21C1/025 ,  C21C7/0087 ,  C21C7/076 ,  C22B5/04 ,  C22B5/10 ,  Y02P10/216 ,  Y02P10/234 ,  Y02P10/242 ,  Y02W30/543

    摘要： The invention provides a method for recovering (collecting) iron and phosphorus from steelmaking slag, which includes a first step in which phosphorus-containing steelmaking slag such as dephosphorization slag is reduced using a reducing agent containing for example carbon, Si or Al to reduce iron oxide and phosphorus oxide in the slag and to recover them as phosphorus-containing molten iron, a second step in which the steelmaking slag from which the iron oxide and the phosphorus oxide have been removed is used as a CaO source in a sintering step and the resultant sintered ore is recycled to a blast furnace, a third step in which the phosphorus-containing molten iron recovered by the reduction is dephosphorized to a phosphorus concentration in the phosphorus-containing molten iron of not more than 0.1% by mass, thereby phosphorus being concentrated in a CaO-containing flux, and a fourth step in which the phosphorus-containing molten iron dephosphorized to a phosphorus concentration of not more than 0.1% by mass is mixed as an iron source with a blast furnace hot metal. The method thus enables inexpensive recovery of phosphorus and iron from the steelmaking slag, and the phosphorus and the iron recovered are effectively used as resources.

    摘要翻译： 本发明提供了一种从炼钢炉渣中回收（收集）铁和磷的方法，该方法包括第一步骤，其中使用包含例如碳，Si或Al的还原剂还原脱磷炉渣等含磷炼钢炉渣以还原铁 氧化物和氧化磷，并将其作为含磷铁水回收;第二步，其中已经除去了氧化铁和氧化磷的炼钢炉渣用作烧结步骤中的CaO源， 将所得到的烧结矿再循环至高炉;第三步，将通过还原回收的含磷铁水脱磷至磷含铁水中的磷浓度不超过0.1质量％，从而使磷 浓缩在含有CaO的助熔剂中，以及第四步骤，其中将含磷铁水脱磷至磷浓度为 不超过0.1质量％作为铁源与高炉铁水混合。 因此该方法能够廉价地从炼钢渣中回收磷和铁，并且回收的磷和铁被有效地用作资源。

    PROCESSES FOR PRODUCING LOW NITROGEN METALLIC CHROMIUM AND CHROMIUM-CONTAINING ALLOYS AND THE RESULTING PRODUCTS
    6.
    发明公开
    PROCESSES FOR PRODUCING LOW NITROGEN METALLIC CHROMIUM AND CHROMIUM-CONTAINING ALLOYS AND THE RESULTING PRODUCTS 审中-公开
    生产低氮金属铬和含铬合金及其制品的工艺

    公开(公告)号：EP3215645A2

    公开(公告)日：2017-09-13

    申请号：EP15864318.9

    申请日：2015-10-05

    申请人： Companhia Brasileira De Metalurgia E Mineração

    发明人： SERNIK, Kleber, A. ,  VIEIRA, Alaércio Salvador Martins ,  RIOS, Adriano, Porfirio ,  FRIDMAN, Daniel, Pallos

    IPC分类号： C22B9/04 ,  C22B5/04 ,  C22B34/32 ,  C22C19/05

    CPC分类号： C22B34/32 ,  C22B5/04 ,  C22B9/04 ,  C22C1/045 ,  C22C1/06 ,  C22C19/05 ,  C22C27/06

    摘要： Processes for producing low-nitrogen metallic chromium or chromium-containing alloys, which prevent the nitrogen in the surrounding atmosphere from being carried into the melt and being absorbed by the metallic chromium or chromium-containing alloy during the metallothermic reaction, include vacuum-degassing a thermite mixture comprising metal compounds and metallic reducing powders contained within a vacuum vessel, igniting the thermite mixture to effect reduction of the metal compounds within the vessel under reduced pressure i.e., below 1 bar, and conducting the entire reduction reaction in said vessel under reduced pressure, including solidification and cooling, to produce a final product with a nitrogen content below 10 ppm. The final products obtained, in addition to low-nitrogen metallic chromium in combination with other elements, can be used as raw materials in the manufacture of superalloys, stainless steel and other specialty steels whose final content of nitrogen is below 10 ppm.

    摘要翻译： 生产低氮金属铬或含铬合金的方法，其防止周围空气中的氮被带入熔体并在金属热反应过程中被金属铬或含铬合金吸收，包括真空脱气a 包含在真空容器内的金属化合物和金属还原粉末的铝热合物混合物，点燃铝热合物混合物以在减压下，即在1巴以下的条件下，使容器内的金属化合物还原，并且在减压下在所述容器中进行整个还原反应 包括固化和冷却，以生产氮含量低于10ppm的最终产品。 所获得的最终产品，除了低氮金属铬与其他元素的组合外，还可以用作制造超级合金，不锈钢和氮含量低于10ppm的其他特种钢的原材料。

    PRODUCTION OF ALUMINIUM-SCANDIUM ALLOYS
    8.
    发明公开
    PRODUCTION OF ALUMINIUM-SCANDIUM ALLOYS 审中-公开
    HERSTELLUNG VON铝 - SCANDIUM-LEGIERUNGEN

    公开(公告)号：EP2971207A4

    公开(公告)日：2016-10-26

    申请号：EP14762744

    申请日：2014-03-14

    申请人： COMMW SCIENT IND RES ORG

    发明人： HAIDAR JAWAD

    IPC分类号： C22C21/00 ,  C22B5/04 ,  C22B21/02 ,  C22C1/02 ,  C22C1/04

    CPC分类号： C22C1/0416 ,  B22F9/20 ,  B22F9/22 ,  C22B5/04 ,  C22B21/0046 ,  C22B21/02 ,  C22C1/02 ,  C22C21/00

    摘要： A process for producing an aluminum-scandium based alloy from aluminum and scandium chloride, the process also producing aluminum chloride as a by-product and including the step of reducing scandium chloride in the presence of aluminum in a reaction zone and under reaction conditions which favor production of the aluminum-scandium based alloy.

    摘要翻译： 一种从铝和氯化钪生产铝 - 钪基合金的方法，该方法还生产作为副产物的氯化铝，并且包括在反应区中和在有利于反应条件的反应条件下还原氯化铝的步骤 生产铝 - 钪基合金。