METHOD FOR SMELTING NICKEL OXIDE ORE
    8.
    发明公开
    METHOD FOR SMELTING NICKEL OXIDE ORE 有权
    氧化镍矿的冶炼方法

    公开(公告)号:EP3222737A1

    公开(公告)日:2017-09-27

    申请号:EP15872381.7

    申请日:2015-09-15

    摘要: Provided is a smelting method capable of effectively promoting a reduction reaction on pellets formed using nickel oxide ore as starting material to obtain a ferronickel alloy with a high nickel grade of at least 4%. The present invention is a method for smelting nickel oxide ore wherein ferronickel alloy with a nickel grade of at least 4% is obtained by reduction-heating of pellets formed from nickel oxide ore, the method comprising a pellet-producing step S1 for producing pellets from nickel oxide ore, and a reducing step S2 for reduction-heating of the obtained pellets in a smelting furnace. In the pellet-producing step S1, the pellets are produced by mixing nickel oxide ore with a specified amount of a carbonaceous reducing agent as starting materials. In the reducing step S2, the produced pellets are charged in a smelting furnace in which a carbonaceous reducing agent (furnace bottom carbonaceous reducing agent) has been spread over the entire furnace bottom and reduction-heating is performed.

    摘要翻译: 本发明提供一种能够有效促进使用氧化镍矿作为原料而形成的粒料的还原反应以获得具有至少4%的高镍品位的镍铁合金的熔炼方法。 本发明是一种用于冶炼氧化镍矿石的方法,其中通过还原加热由氧化镍矿石形成的粒料而获得镍级别为至少4%的镍铁合金,所述方法包括粒料制备步骤S1,用于从 氧化镍矿石和还原步骤S2,用于在熔炼炉中对所得颗粒进行还原加热。 在颗粒生产步骤S1中,通过将氧化镍矿石与指定量的碳质还原剂作为起始材料混合来生产颗粒。 在还原工序S2中,将制造出的颗粒装入在炉底整体上铺设了碳质还原剂(炉底碳质还原剂)并进行还原加热的熔炼炉中。