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Ferronickel smelting method

机译:镍铁冶炼方法

摘要

PROBLEM TO BE SOLVED: To provide a method for refining ferronickel, upon reduction melting in an electric furnace, capable of producing ferronickel with a high nickel grade while preventing the reduction of operation efficiency by suppressing the generation of a boiling phenomenon.SOLUTION: Provided is a method for refining ferronickel comprising a process where sintered ores obtained by partially reducing nickel oxide ores as raw material are charged to a three phase alternating current type electric furnace, and the sintered ores are subjected to reduction melting to generate a metal and slag. When the sintered ores charged to the three phase alternating current type electric furnace are partitioned into the sintered ores A relatively high in a residual carbon content and the sintered ores B relatively low in a residual carbon content, and the sintered ores are charged to the three phase alternating current type electric furnace, the sintered ores A are charged to a range surrounded by three electrodes in the three phase alternating current type electric furnace, and the sintered ores B are charged to the outside of the range surrounded by the three electrodes in the three phase alternating current type electric furnace.SELECTED DRAWING: Figure 5
机译:解决的问题:提供一种精炼镍铁的方法,该方法在电炉中还原熔融后,能够生产高镍等级的镍铁,同时通过抑制沸腾现象的产生来防止操作效率的降低。 1.一种精炼镍铁的方法,该方法包括以下步骤:将通过部分还原氧化镍矿石作为原料而获得的烧结矿装入三相交流型电炉中,并对所述烧结矿进行还原熔融以产生金属和炉渣。当将装填到三相交流电炉中的烧结矿分成残留碳含量相对较高的烧结矿A和残留碳含量相对较低的烧结矿B时,将烧结矿装入这三个炉中。在三相交流电炉中,将烧结矿A充入在三相中的三个电极所包围的范围内,并且将烧结矿B在电炉中填充至由三个电极所包围的范围外。三相交流电炉图5

著录项

  • 公开/公告号JP6615712B2

    专利类型

  • 公开/公告日2019-12-04

    原文格式PDF

  • 申请/专利权人 株式会社日向製錬所;

    申请/专利号JP20160145620

  • 发明设计人 森 一広;遠藤 修司;

    申请日2016-07-25

  • 分类号C22B5/10;C22C33/04;C22B23/02;C22B23;

  • 国家 JP

  • 入库时间 2022-08-21 11:32:06

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