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    Process and apparatus for the recovery of combustible gases in an electrometallurgy furnace
    2.
    发明授权
    Process and apparatus for the recovery of combustible gases in an electrometallurgy furnace 失效
    在电冶炼炉中回收可燃气体的方法和装置

    公开(公告)号：US4450003A

    公开(公告)日：1984-05-22

    申请号：US438262

    申请日：1982-11-01

    申请人： Robert Herold ,  Francis Dubrous

    发明人： Robert Herold ,  Francis Dubrous

    IPC分类号： C01B33/025 ,  C21C5/52 ,  F27B3/08 ,  F27D17/00 ,  C21B7/22 ,  C21C5/38 ,  C21C5/40

    CPC分类号： C21C5/5211 ,  C01B33/025 ,  F27D17/003 ,  Y02P10/216

    摘要： The invention concerns a process for the recovery of combustible gases in an electrometallurgy furnace comprising an external metal casing (1) and an internal refractory lining (2), in which at least one oxidized compound is reduced by means of carbon, the various components being introduced into the furnace in the form of a divided charge (6) (A) which moves progressively downwardly towards the reaction region (C), passing through a sintering region (B). The combustible gases produced in the reaction region are collected by suction, by means of a plurality of apertures (8) provided in the external metal casing (1) and the internal refractory lining (2) and disposed at a level corresponding to the lower portion of the divided charge (A) and before it passes into the sintering region (B).Suction of the gases collected by each aperture may be controlled in dependence on at least one of the following parameters: temperature, pressure and flow rate of the gases, and concentration of carbon monoxide, nitrogen or other component in the gases. The gases collected at each aperture (8) are passed to a central collector (12) and directed as desired towards a storage means for deferred use, or towards a means for immediate use.At least 60% of the energy introduced into the furnace may be recovered.

    摘要翻译： 本发明涉及一种在电冶炼炉中回收可燃气体的方法，其包括外部金属外壳（1）和内部耐火内衬（2），其中至少一种氧化化合物通过碳减少，各种组分为 以分段电荷（6）（A）的形式引入炉中，其逐渐向下朝向反应区域（C）移动，通过烧结区域（B）。 在反应区域中产生的可燃气体通过抽吸被设置在设置在外部金属壳体（1）和内部耐火衬里（2）中的多个孔（8）收集，并且设置在与下部 的分割电荷（A），并且在其进入烧结区域（B）之前。 可以根据以下参数中的至少一个来控​​制由每个孔收集的气体的吸入：气体的温度，压力和流速以及气体中的一氧化碳，氮气或其它组分的浓度。 在每个孔（8）处收集的气体被传送到中央收集器（12）并且根据需要被引导到用于延迟使用的存储装置，或者朝向立即使用的装置。 可以回收至少60％的引入炉内的能量。

    Process for obtaining manganese- and silicon-based alloys by silico-thermal means in a ladle
    3.
    发明授权
    Process for obtaining manganese- and silicon-based alloys by silico-thermal means in a ladle 失效
    在钢包中通过电热法获得锰和硅基合金的方法

    公开(公告)号：US4363657A

    公开(公告)日：1982-12-14

    申请号：US253521

    申请日：1981-03-06

    申请人： Louis Boscaro ,  Michel Demange ,  Jean-Philippe Bucher ,  Francis Dubrous ,  Louis Septier

    发明人： Louis Boscaro ,  Michel Demange ,  Jean-Philippe Bucher ,  Francis Dubrous ,  Louis Septier

    IPC分类号： C22B47/00 ,  C22B5/04 ,  C22C1/02 ,  C22C28/00 ,  C22C35/00

    CPC分类号： C22B5/04 ,  C22C28/00

    摘要： The invention relates to a process for obtaining manganese- and silicon-based alloys by silico-thermal means in a ladle.An oxidized liquid slag, usually originating from earlier metallurgical operations and still containing from 10 to 40% of manganese in the form of MnO is treated by a silicon-based reducing alloy (silicon content of at least 60% and preferably at least 70%) with agitation.A slag which is substantially exhausted of manganese and a metal containing more than 60% and generally more than 70% of manganese and from 5 to 40% and preferably from 10 to 35% of silicon are thus obtained.

    摘要翻译： PCT No.PCT / FR80 / 00121 Sec。 371日期1981年3月6日 102（e）日期1981年3月6日PCT提交1980年7月15日PCT公布。 公开号WO81 / 00262 日期：1981年2月5日。本发明涉及一种在钢包中通过硅 - 热装置获得锰和硅基合金的方法。 通常来自早期冶金操作并仍含有10〜40％MnO形式的锰的氧化液体渣通过硅系还原合金（硅含量至少为60％，优选至少为70％）进行处理， 激动地 因此，获得了基本上耗尽锰的金属和含有超过60％，通常大于70％的锰和5至40％，优选10至35％的硅的金属。

    Process for the preparation of silicon carbide whiskers
    4.
    发明授权
    Process for the preparation of silicon carbide whiskers 失效
    碳化硅晶须的制备方法

    公开(公告)号：US4904622A

    公开(公告)日：1990-02-27

    申请号：US157619

    申请日：1988-02-19

    申请人： Dominique Dubots ,  Francis Dubrous

    发明人： Dominique Dubots ,  Francis Dubrous

    IPC分类号： C30B29/62 ,  C30B25/00

    CPC分类号： C30B25/005 ,  C30B29/36

    摘要： The invention relates to a process for the preparation of silicon carbide whiskers by the reaction, in a non-oxidizing atmosphere, at a temperature of at least 1300.degree. C., of a charge composed of a mixture of carbon black and a source of silicon oxide, in which process the carbon black has an oxidability rate (measured by heating in air for 30 minutes at 600.degree. C.) of at least 85%, the silicon oxide source has a grain size of less than 100 .mu.m and the rate of rise in temperature between 1300.degree. and 1600.degree. C. is less than 30.degree. C.min.sup.-1 per minute if a static atmosphere prevails and at most 25.degree. C.min.sup.-1 if gas percolated. A stage of from 5 min to 5 h at 1600.degree. C. is optionally carried out.The carbon is preferably introduced into the reaction mixture in an over-stoichiometric quantity relative to the silica.The excess carbon is removed at the end of the reaction by oxidation in air at about 600.degree. C.

    摘要翻译： 本发明涉及通过在非氧化性气氛中在至少1300℃的温度下由碳黑和硅源的混合物反应制备碳化硅晶须的方法 氧化物，其中炭黑具有至少85％的氧化率（通过在空气中加热30分钟测量）为至少85％，氧化硅源的粒度小于100μm，速率 如果气体渗透，如果静态气氛为最高，最高为25℃/ min，则1300至1600℃之间的温度升高小于30℃/ min。 任选地在1600℃下5分钟至5小时的阶段进行。 碳相对于二氧化硅优选以超化学计量的量引入反应混合物。 在反应结束时通过在约600℃的空气中氧化除去多余的碳。