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61. 发明授权

US4040816A Process for the production of sponge iron 失效
标题翻译：海绵铁生产工艺
公开(公告)号：US4040816A
公开(公告)日：1977-08-09
申请号：US641618
申请日：1975-12-17
申请人： Klaus Altenhoner , Walter Jansen , Klaus Knop , Ulrich Pohl , Jan G. Reerink
发明人： Klaus Altenhoner , Walter Jansen , Klaus Knop , Ulrich Pohl , Jan G. Reerink
IPC分类号： C21B13/02 , C21B13/00
CPC分类号： C21B13/0073 , Y02P10/122 , Y02P10/126 , Y02P10/128 , Y02P10/136
摘要： Sponge iron is produced at a shaft furnace from iron ore, preferably in the form of pellets, whereby a hot reduction gas is passed upwardly through the shaft furnace and the iron ore descends therein. The hot reduction gas is formed in part by a desulfurized fresh gas produced by partial oxidation of a hydrocarbon (generally high sulfur residual oil) and desulfurization and, in part, by recirculated exhaust gas drawn from the head of the furnace and having its carbon-oxide content reduced by about ten volume percent. The fresh gas is mixed with the recirculated exhaust gas in a volume ratio of fresh gas/exhaust gas of 0.8:1.0 to produce a cold mixed gas. The cold mixed gas is heated to a temperature of about 1000.degree. C directly before being introduced into the shaft furnace as reduction gas.
摘要翻译：海绵铁在竖炉中由铁矿石制成，优选为颗粒状，由此使热还原气体向上通过竖炉，铁矿石在其中下降。热还原气体部分地由通过烃（通常为高硫残余油）的部分氧化和脱硫而产生的脱硫新鲜气体形成，并且部分地由从炉头抽出的再循环废气形成，氧化物含量减少约十个体积百分比。新鲜气体与新鲜气体/废气的体积比为0.8:1.0的再循环废气混合，产生冷混合气体。将冷混合气体直接加热至约1000℃的温度，然后作为还原气体引入竖炉。

62. 发明授权

US4032120A Apparatus for direct reduction of sulfur-containing iron ore 失效
标题翻译：用于直接还原含硫铁矿石的设备
公开(公告)号：US4032120A
公开(公告)日：1977-06-28
申请号：US630489
申请日：1975-11-10
申请人： Donald Beggs
发明人： Donald Beggs
IPC分类号： C21B13/02 , C21B13/00 , C22B5/12 , C21B1/06
CPC分类号： C22B5/12 , C21B13/0073 , Y02P10/136 , Y02P10/212
摘要： Apparatus for direct reduction of iron ore containing sulfur comprises a shaft type reduction furnace with means for withdrawing two separate streams of spent reducing gas. One stream, being substantially free of sulfur is recycled through a catalytic reformer to produce fresh reducing gas. The other stream containing sulfur, is connected to process equipment such as a burner where sulfur is not of consequence.
摘要翻译：用于直接还原含铁矿石的装置包括具有用于抽出两个分离的废还原气流的装置的轴式还原炉。基本上不含硫的一股料流通过催化重整器回收以产生新鲜的还原气体。含有硫的其他物流连接到诸如不会产生硫的燃烧器的过程设备。

63. 发明授权

US4007034A Method for making steel 失效
标题翻译：制钢方法
公开(公告)号：US4007034A
公开(公告)日：1977-02-08
申请号：US579738
申请日：1975-05-21
申请人： Jurgen Hartwig , Dieter Neuschutz , Dietrich Radke
发明人： Jurgen Hartwig , Dieter Neuschutz , Dietrich Radke
IPC分类号： C21B13/00 , C21B13/14 , C21C5/00
CPC分类号： C01B3/12 , C21B13/0073 , C21B13/14 , Y02P10/122 , Y02P10/126 , Y02P10/136 , Y02P10/212 , Y02P10/265 , Y02P10/283
摘要： A method is provided for producing steel from iron oxide-containing raw materials. The raw materials are initially converted, in a reduction furnace by direct reduction with a reducing gas, to a substantially metallized sponge iron. The metallized sponge iron is then melted with the addition of additives and possibly fine scrap in a melting vessel filled with a metal melt. Heat and carbon monoxide-containing exhaust gases are formed in the melting vessel due to the reaction of oxygen-containing gases with carbonaceous material. The heat is utilized in part to melt the sponge iron and the exhaust gases are utilized for the direct reduction. The melt is then transferred to a further vessel where it is further processed into steel by means of suitable metallurgical measures. In the process, the entire, strongly-heated exhaust gas from the melting vessel is caused to react in a reactor with (1) carbonaceous material, and with (2) water vapor and/or carbon dioxide. After suitable conditioning, this exhaust gas is utilized for the direct reduction of the iron oxide-containing raw materials. An exhaust gas is formed in the direct reduction furnace during the direct reduction, and part of this exhaust gas is conducted through a gas processing system and combined with the conditioned exhaust gas from the melting vessel to form the reducing gas used in the direct reduction furnace.
摘要翻译：提供了从含氧化铁原料生产钢的方法。原料通过用还原气体直接还原在还原炉中被初始转化成基本金属化的海绵铁。然后在填充有金属熔体的熔融容器中加入金属化的海绵铁，然后加入添加剂和可能的细小废料。由于含氧气体与含碳材料的反应，在熔化容器中形成含有一氧化碳的废气。部分地利用热量来熔化海绵铁，并且排气用于直接还原。然后将熔体转移到另一个容器中，其中通过合适的冶金措施进一步加工成钢。在该过程中，使来自熔融容器的整个强烈加热的废气在反应器中与（1）碳质材料和（2）水蒸汽和/或二氧化碳反应。在适当调节之后，该废气用于直接还原含氧化铁的原料。在直接还原期间，在直接还原炉中形成废气，并且该废气的一部分通过气体处理系统传导并与来自熔融容器的调节废气结合，形成在直接还原炉中使用的还原气体。

64. 发明授权

US3904397A Method for reducing metal ores 失效
标题翻译：减少金属矿石的方法
公开(公告)号：US3904397A
公开(公告)日：1975-09-09
申请号：US26882072
申请日：1972-07-03
申请人： FIERRO ESPONJA
发明人： CELADA JUAN , MACKAY PATRICK W , MARTINEZ ENRIQUE RAMON , VILLASENOR ANTONIO , VIRAMONTES RICARDO
IPC分类号： C21B13/00 , C21B13/04 , C21B13/14
CPC分类号： C21B13/04 , C21B13/0073 , C21B2100/22 , C21B2100/64 , Y02P10/136 , Y02P10/143
摘要： An improvement in a method for the batchwise gaseous reduction of metal oxides, e.g., iron ore, to metals, e.g., sponge iron, in a multiple unit reactor system of the type in which separate bodies of metal-bearing material are simultaneously treated in one or more reduction reactors and cooling reactors. Reduction is effected with a gas composed largely of carbon monoxide and hydrogen generated by the catalytic conversion of methane and steam at an elevated temperature. Improved cooling is obtained by first feeding the freshly prepared gas to a reduction reactor rather than a cooling reactor, thereby minimizing formation of methane in the cooling reactor. In a modified embodiment, methane is fed to the cooling reactor and at least a portion of the effluent gas is recycled through the catalytic reformer.
摘要翻译：在多单位反应器系统中将金属氧化物（例如铁矿石）分批气态还原成金属（例如海绵铁）的方法的改进，其中分离的含金属材料体同时在一个处理或更多的还原反应器和冷却反应器。通过在升高的温度下甲烷和蒸汽的催化转化产生的主要由一氧化碳和氢气组成的气体进行还原。通过首先将新制备的气体供给到还原反应器而不是冷却反应器中，从而最小化冷却反应器中甲烷的形成，从而获得改进的冷却。在一个改进的实施方案中，甲烷被供给到冷却反应器中，并且至少一部分废气通过催化重整器再循环。

65. 发明授权

US3799521A Method and apparatus for the gaseous reduction of iron ore to sponge iron 失效
标题翻译：用于气体还原铁对海绵铁的方法和装置
公开(公告)号：US3799521A
公开(公告)日：1974-03-26
申请号：US32871273
申请日：1973-02-01
申请人： FIERRO ESPONJA
发明人： MAC KAY P , CELADA J , VILLARREAL D
IPC分类号： C21B13/00 , C21B13/02
CPC分类号： C21B13/0073 , C21B13/029 , C21B2100/22 , C21B2100/44 , C21B2100/64 , C21B2100/66 , Y02P10/136
摘要： Method and apparatus for reducing particulate metal ore, e.g., iron ore, to metal particles, e.g., sponge iron, in a vertical shaft, moving bed reactor having a reduction zone and a cooling zone wherein separate streams of reducing gas and cooling gas are used in the reduction and cooling zones, respectively, and means are provided for minimizing commingling of the two gas streams. In one embodiment a differential pressure controller is used to maintain substantially equal the gas pressure at the bottom of the reduction zone and the gas pressure at the top of the cooling zone. In another embodiment the flows of inlet gas to and outlet gas from the cooling zone are controlled to maintain these two flows substantially equal. Either or both of the reducing gas and cooling gas may be recycled in a closed loop.
摘要翻译：减少颗粒金属矿石，例如铁矿石的方法和设备，在垂直轴中的金属颗粒，例如海绵铁，具有还原区的移动床反应器和冷却区，其中使用分离的还原气体和冷却气体流分别在还原和冷却区中，并且提供了用于最小化两种气流的混合的装置。在一个实施例中，使用差压控制器来保持在还原区底部的气体压力和冷却区顶部的气体压力基本相等。在另一个实施例中，来自冷却区的入口气体和出口气体的流动被控制以保持这两个流量基本相等。还原气体和冷却气体中的任一种或两者可以在闭环中再循环。

66. 发明授权

US3764123A Method of and apparatus for reducing iron oxide to metallic iron 失效
标题翻译：将氧化铁还原成金属铁的方法和装置
公开(公告)号：US3764123A
公开(公告)日：1973-10-09
申请号：US3764123D
申请日：1970-06-29
申请人： MIDLAND ROSS CORP
发明人： BEGGS D , SCARLETT J
IPC分类号： C21B13/00 , F27D17/00
CPC分类号： C21B13/0073 , C21B13/029 , C21B2100/22 , C21B2100/64 , Y02P10/136
摘要： This invention relates to a method and apparatus for reducing iron oxide to metallic iron, utilizing a continuous process employing a reducing gas with a high H2 and CO content made by catalytically reforming a mixture of gaseous hydrocarbon and reacted off-gas from the reduction process. The CO2 plus H2O present in the reacted off-gas are utilized as the hydrocarbon reforming oxidant, without the addition of reforming oxidant from an external source.
摘要翻译：本发明涉及一种用于还原氧化铁与金属铁的方法和装置，利用连续方法，该方法和方法采用通过从还原过程催化重整气态烃和反应废气的混合物而制得的具有高H 2和CO含量的还原气体。在反应废气中存在的CO 2加上H 2 O被用作烃重整氧化剂，而不从外部来源加入重整氧化剂。

67. 发明授权

US3684486A Direct reduction of iron ore and the like 失效
标题翻译：直接减少铁矿石等
公开(公告)号：US3684486A
公开(公告)日：1972-08-15
申请号：US3684486D
申请日：1968-12-23
申请人： SWINDELL DRESSLER CO DIVISION , PULLMAN INC
发明人： OSMAN MOHAMED A
IPC分类号： C21B13/00 , C21B13/14
CPC分类号： C21B13/0073 , C21B13/146 , Y02P10/136
摘要： I DISCLOSE A METHOD FOR THE PRODUTION OF SPONGE METAL, SAID METHOD COMPRISING THE STEPS OF PLACING A PREDETERMINED QUANTITY OF AN OXIDIC ORE OF SAID METAL IN A REDUCTIONAL ZONE, PREHEATING SAID ORE WITH NON-REDUCING GAS, AND PASSING A QUANTITY OF HOT REDUCING GAS THROUGH SAID ORE TO REDUCE SAID ORE TO SAID SPONGE METAL.

68. 发明授权

US3475160A Method of producing reducing gases for the fluidized bed reduction of ores 失效
标题翻译：生产减少流化床减少气体的方法
公开(公告)号：US3475160A
公开(公告)日：1969-10-28
申请号：US3475160D
申请日：1967-02-15
申请人： EXXON RESEARCH ENGINEERING CO
发明人： HEINZELMANN FRED J , SAXTON ARTHUR L
IPC分类号： C01B3/38 , C21B13/00 , C22B5/12 , C10J1/20
CPC分类号： C21B13/0073 , C01B3/38 , C21B13/0033 , Y02P10/122 , Y02P10/126 , Y02P10/128 , Y02P10/136 , Y02P10/143 , Y02P10/212

69. 发明授权

US3375098A Gaseous reduction of iron ores 失效
标题翻译：铁矿石的气体还原
公开(公告)号：US3375098A
公开(公告)日：1968-03-26
申请号：US38437364
申请日：1964-07-22
申请人： ARMCO STEEL CORP
发明人： MARSHALL WILLIAM E
IPC分类号： C21B5/06 , C21B13/00 , C21B13/02
CPC分类号： C21B13/0073 , C21B5/06 , C21B13/02 , C21B2100/22 , C21B2100/26 , C21B2100/64 , Y02P10/136 , Y02P10/143 , Y02P10/216 , Y02P10/265 , Y02P10/283

70. 发明授权

US3305312A Synthesis process 失效
标题翻译：合成过程
公开(公告)号：US3305312A
公开(公告)日：1967-02-21
申请号：US26469263
申请日：1963-03-12
申请人： EXXON RESEARCH ENGINEERING CO
发明人： JACOB WEINSTEIN NORMAN , KING RICHARD R
IPC分类号： C01B3/02 , C01C1/04 , C21B13/00
CPC分类号： C01C1/0411 , C01B3/025 , C21B13/0033 , C21B13/0073 , Y02P10/122 , Y02P10/126 , Y02P10/128 , Y02P10/136 , Y02P10/143 , Y02P10/216 , Y02P20/52 , Y02P20/582

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