Smelting process for the production of iron
    1.
    发明授权
    Smelting process for the production of iron 有权
    冶炼生产铁的过程

    公开(公告)号:US07727304B2

    公开(公告)日:2010-06-01

    申请号:US10542721

    申请日:2004-01-20

    IPC分类号: C21C5/00

    摘要: A process for producing iron metal and slag by smelting iron-containing source material, having iron present as oxide and/or a partially metalized state, in a reactor containing a molten bath comprising or having a slag phase, utilises injection of fuel/reductant and oxygen-containing gas into the slag, by at least one top-submerged lance, to generate heating and reducing conditions in at least one reducing region in the bath. The source material is fed to the reactor, together with additional reductant and with flux, at or adjacent to the at least one reducing region, to subject the source material to smelting reduction which generates combustion gases comprising CO and H2. The rates of injection of the oxygen-containing gas and fuel/reductant by said at least one lance are controlled to achieve required, sufficient reducing conditions; and, in the reactor above the bath, the combustion gases generated by the smelting are post-combusted. The controlling of step (c) is conducted to result in the injected oxygen-containing gas having an oxygen content of from about 40 volume % to about 100 volume % and sufficient for a degree of combustion in excess of 60 wt % of the fuel/reductant injected by the at least one lance.

    摘要翻译: 通过熔化含铁源材料(在含有或具有渣相的熔融浴的反应器中)以含氧化物和/或部分金属化态存在的铁来生产铁金属和炉渣的方法利用燃料/还原剂的注入和 通过至少一个顶部浸没的喷枪将含氧气体进入炉渣,以在浴中的至少一个还原区域中产生加热和还原条件。 源材料与另外的还原剂和助熔剂一起在至少一个还原区域处或邻近的至少一个还原区域进料到反应器,以使源材料熔融还原,其产生包含CO和H 2的燃烧气体。 控制由所述至少一根喷枪喷射含氧气体和燃料/还原剂的速率以达到所需的足够的还原条件; 并且在浴池上​​方的反应器中,由熔炼产生的燃烧气体后燃烧。 进行步骤(c)的控制以产生氧含量为约40体积%至约100体积%并且足以使燃烧程度超过燃料/燃料的60重量% 还原剂由至少一根喷枪注射。

    Process for copper converting
    2.
    再颁专利
    Process for copper converting 有权
    铜转化工艺

    公开(公告)号:USRE44850E1

    公开(公告)日:2014-04-22

    申请号:US13539953

    申请日:2012-07-02

    IPC分类号: C22B15/00

    CPC分类号: C22B15/0054 C22B15/0041

    摘要: The process for converting a copper sulphide matte to blister copper, is achieved by adding the copper sulphide matte and flux to a suitable agitated slag phase; and injecting, from a discharge tip at the lower end of a top-submerged lance, an oxidizing gas suitable for reacting with the matte to produce blister copper which forms or adds to a continuous blister copper phase below the slag phase. The lance tip is located within the slag phase at a depth enabling the injected gas to agitate the slag phase, and to react with copper sulphide matte dispersed therein, while precluding a substantial proportion of the gas from contacting the continuous blister copper phase.

    摘要翻译: 通过将硫化铜锍和助熔剂加入到合适的搅拌的渣相中来实现将硫化铜锍转化为吸塑铜的方法; 并且从顶部浸入式喷枪的下端的排出尖端喷射适于与无光泽反应的氧化气体,以产生形成或添加到渣相下方的连续泡状铜相的泡罩铜。 喷枪尖端位于炉渣相内,使得喷射的气体能够搅拌渣相,并与其中分散的硫化亚铜反应,同时排除大部分气体与连续的泡罩铜相接触。

    Process for copper converting
    3.
    发明授权
    Process for copper converting 有权
    铜转化工艺

    公开(公告)号:US07749301B2

    公开(公告)日:2010-07-06

    申请号:US10599570

    申请日:2005-04-06

    IPC分类号: C22B15/00

    CPC分类号: C22B15/0054 C22B15/0041

    摘要: The process for converting a copper sulphide matte to blister copper, is achieved by adding the copper sulphide matte and flux to a suitable agitated slag phase; and injecting, from a discharge tip at the lower end of a top-submerged lance, an oxidizing gas suitable for reacting with the matte to produce blister copper which forms or adds to a continuous blister copper phase below the slag phase. The lance tip is located within the slag phase at a depth enabling the injected gas to agitate the slag phase, and to react with copper sulphide matte dispersed therein, while precluding a substantial proportion of the gas from contacting the continuous blister copper phase.

    摘要翻译: 通过将硫化铜锍和助熔剂加入到合适的搅拌的渣相中来实现将硫化铜锍转化为吸塑铜的方法; 并且从顶部浸入式喷枪的下端的排出尖端喷射适于与无光泽反应的氧化气体,以产生形成或添加到渣相下方的连续泡状铜相的泡罩铜。 喷枪尖端位于炉渣相内,使得喷射的气体能够搅拌渣相,并与其中分散的硫化亚铜反应,同时排除大部分气体与连续的泡罩铜相接触。