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    Process for preparing silicon-base complex ferrous alloys
    1.
    发明授权
    Process for preparing silicon-base complex ferrous alloys 失效
    制备硅基络合铁合金的工艺

    公开(公告)号：US4576637A

    公开(公告)日：1986-03-18

    申请号：US651849

    申请日：1984-09-18

    申请人： Istvan Tamas ,  Szilard Riederauer ,  Janos Kovacs

    发明人： Istvan Tamas ,  Szilard Riederauer ,  Janos Kovacs

    IPC分类号： C22C33/04 ,  C21C5/52 ,  C22B1/24 ,  C22C33/00 ,  C22B4/00

    CPC分类号： C22C33/003 ,  C21C5/5264 ,  C22B1/2406 ,  Y02P10/216

    摘要： A process for the continuous preparation of silicon-base complex ferrous alloys from cheap raw materials by preparing a charge with a high electric resistance and reducing the same in an electric arc furnace. A charge is assembled which contains the total amount of carbon in a 0.82 to 0.99-fold quantity of that required to reduce all oxides of the charge to elements and achieving this carbon content by preparing pellets which, in addition to the binding material, contain(a) as oxide to be reduced in an amount of at least 50% by weight such oxides of only base-forming or only amphoteric or only acid-forming elements which form with each other compounds or eutectics melting above 1600.degree. C., and(b) a carbonaceous reducing agent and/or carbides in such an amount that the quantity of carbon is either 1.05 to 1.35 times higher than required to transform the oxides of the pellet to the carbides or 0.66 to 0.02-fold of the quantity required to reduce the oxides of the pellet to metallic elements, and assembling the charge(.alpha.) from pellets containing an excess of carbon and/or from lumpy carbides and(.beta.) from carbon-deficient pellets or from a lumpy oxide of a base-forming or amphoteric or acid-forming element and(.gamma.) from lumpy carbon carriers, and optionally(.delta.) from an iron additive, in the absence of boron trioxide.

    摘要翻译： 一种通过在电弧炉中制备具有高电阻并在电弧炉中还原的方法从廉价原料连续制备硅基复合铁合金的方法。 组装电荷，其含有将元素中的所有电荷的所有氧化物还原并达到该碳含量所需的0.82至0.99倍的总量，通过制备除了粘结材料外还含有 a）氧化物以至少50重量％的量还原这样的氧化物，其仅形成成形或仅两性或仅有酸形成元素，彼此形成化合物或熔点高于1600℃的共晶体，和（ b）碳质还原剂和/或碳化物的量使得碳的量比将颗粒的氧化物转化为碳化物所需的量高1.05至1.35倍，或减少所需的量的0.66至0.02倍 颗粒的氧化物与金属元素组合，并且从含有过量碳和/或块状碳化物的颗粒和（β）从含碳缺陷的颗粒或由形成碱或两性的块状氧化物组装电荷（α） 或来自块状碳载体的（γ）和任选的来自铁添加剂的（δ），在不存在三氧化硼的情况下。

    Metallothermal process for the simultaneous production of magnesium and cement or calcium and cement
    2.
    发明授权
    Metallothermal process for the simultaneous production of magnesium and cement or calcium and cement 失效
    用于同时生产镁和水泥或钙和水泥的金属热处理

    公开(公告)号：US4240825A

    公开(公告)日：1980-12-23

    申请号：US65329

    申请日：1979-08-08

    申请人： Istvan Tamas

    发明人： Istvan Tamas

    IPC分类号： C04B7/00 ,  C22B26/20 ,  C22B26/22 ,  C22B45/00

    CPC分类号： C04B7/00 ,  C22B26/20 ,  C22B26/22

    摘要： The invention relates to a new process for the simultaneous production of magnesium and cement from calcined dolomite or calcium and cement from calcined lime. According to the invention calcined dolomite or calcined lime is reduced under a pressure lower than 10 torr and at a temperature of 1300.degree. to 1600.degree. C. with a reducing agent containing silicon and aluminum in a weight ratio of 4:1 to 1:1, wherein the total amount of silicon and aluminum comprises 50 to 100% by weight. 100 to 200 parts by weight of the reducing agent are applied to convert 600 to 800 parts by weight of calcined dolomite or 700 to 1000 parts by weight of calcined lime.In contrast to the known procedures, the new method according to the invention provides cement as by-product instead of a useless slag.

    摘要翻译： 本发明涉及一种从煅烧白云石或煅烧石灰钙或水泥同时生产镁和水泥的新方法。 根据本发明，煅烧白云石或煅烧石灰在低于10托的压力下和在1300℃至1600℃的温度下用含有硅和铝的还原剂以4:1至1:1的重量比降低 ，其中硅和铝的总量包含50至100重量％。 施加100〜200重量份的还原剂以将600至800重量份的煅烧白云石或700至1000重量份的煅烧石灰转化。 与已知的方法相反，根据本发明的新方法提供作为副产物的水泥而不是无用的渣。