DIRECT SMELTING PROCESS AND APPARATUS
    41.
    发明申请
    DIRECT SMELTING PROCESS AND APPARATUS 有权
    直接冶炼工艺和设备

    公开(公告)号:US20120067171A1

    公开(公告)日:2012-03-22

    申请号:US13148576

    申请日:2010-02-09

    IPC分类号: C22B5/18 F27B1/16 F27D3/00

    摘要: A process and apparatus for direct smelting metalliferous material is disclosed. The invention concentrates injection of solid feed materials comprising metalliferous material and carbonaceous material into a direct smelting vessel during the course of the process into a relatively small region within a metal layer in a molten bath in the vessel in order to generate a substantial upward movement of molten material and gas from the metal layer into a region in the vessel that is above the molten bath. In particular, the invention injects the solid feed materials with sufficient momentum and/or velocity via an opposed pair of lances that are oriented within the vessel and arranged to form overlapping plumes of injected material in the molten bath.

    摘要翻译: 公开了用于直接熔炼含金属材料的方法和装置。 本发明将包含含金属材料和含碳材料的固体进料材料在工艺过程中集中到直接熔炼容器中,进入容器中熔融浴中的金属层内的相对较小的区域,以便产生大量向上移动 熔融材料和气体从金属层进入容器中位于熔池上方的区域。 特别地,本发明通过相对的一对喷枪将具有足够动量和/或速度的固体进料材料注入到容器内,并且布置成在熔融浴中形成重叠的喷射材料的羽流。

    CARBOTHERMIC PROCESSES
    42.
    发明申请

    公开(公告)号:US20110165332A1

    公开(公告)日:2011-07-07

    申请号:US12991860

    申请日:2009-05-08

    摘要: A mass of solid aluminium carbide containing product is produced by a process in which a mixture is formed of an aluminium containing material and a carbonaceous material consisting of, containing or yielding carbon. Then the resulting mixture is heated to a temperature sufficient to react carbon of the carbonaceous material with the aluminium of the aluminium containing material to produce solid aluminium carbide. The solid aluminium carbide then is able to be heated with an aluminium compound selected from AI2O3, AI4CO4, AIO, AI2O and mixtures thereof, to produce aluminium metal and carbon monoxide.

    摘要翻译: 通过其中混合物由含铝材料和由碳组成,含有或产生碳的碳质材料形成的方法制备的大量含固体碳酸铝的产品。 然后将所得混合物加热到足以使含碳材料的碳与含铝材料的铝反应以产生固体碳化铝的温度。 然后固体碳酸铝能够用选自Al 2 O 3,Al 4 CO 4,AIO,Al 2 O及其混合物的铝化合物加热,以产生铝金属和一氧化碳。

    Magnesiothermic methods of producing high-purity silicon
    43.
    发明授权
    Magnesiothermic methods of producing high-purity silicon 有权
    生产高纯度硅的氧化镁方法

    公开(公告)号:US07972584B2

    公开(公告)日:2011-07-05

    申请号:US12547162

    申请日:2009-08-25

    申请人: James G. Blencoe

    发明人: James G. Blencoe

    摘要: Magnesiothermic methods of producing solid silicon are provided. In a first embodiment, solid silica and magnesium gas are reacted at a temperature from 400° C. to 1000° C. to produce solid silicon and solid magnesium oxide, the silicon having a purity from 98.0 to 99.9999%. The silicon is separated from the magnesium oxide using an electrostatic technology. In a second embodiment, the solid silicon is reacted with magnesium gas to produce solid magnesium silicide. The magnesium silicide is contacted with hydrogen chloride gas or hydrochloric acid to produce silane gas. The silane gas is thermally decomposed to produce solid silicon and hydrogen gas, the silicon having a purity of at least 99.9999%. The solid silicon and hydrogen gas are separated into two processing streams. The hydrogen gas is recycled for reaction with chlorine gas to produce hydrogen chloride gas.

    摘要翻译: 提供了生产固体硅的氧化镁的方法。 在第一实施方案中,固体二氧化硅和镁气体在400℃至1000℃的温度下反应,生成固体硅和固体氧化镁,其纯度为98.0至99.9999%。 使用静电技术将硅与氧化镁分离。 在第二个实施方案中,固体硅与镁气反应产生固体硅化镁。 将硅化镁与氯化氢气体或盐酸接触以产生硅烷气体。 硅烷气体被热分解以产生固体硅和氢气,硅的纯度至少为99.9999%。 将固体硅和氢气分离成两个处理流。 将氢气再循环用于与氯气反应以产生氯化氢气体。

    MAGNESIOTHERMIC SOM PROCESS FOR PRODUCTION OF METALS
    44.
    发明申请
    MAGNESIOTHERMIC SOM PROCESS FOR PRODUCTION OF METALS 审中-公开
    用于生产金属的MAGNESIOTHERMIC SOM工艺

    公开(公告)号:US20100288649A1

    公开(公告)日:2010-11-18

    申请号:US12445375

    申请日:2007-10-11

    申请人: Uday B. Pal

    发明人: Uday B. Pal

    IPC分类号: C22B5/12 C25B15/08 C22B5/18

    摘要: A process and apparatus are provided that allow metals including metals having stable oxide phases and metals with variable valencies to be extracted from their respective ores via an electrolytic process that is environmentally sound and economically viable. The process for lowering the oxidation state of a metal in a metal oxide comprises providing an electrolysis chamber housing a flux containing a highly reactive metal (e.g. Mg) and having a cathode, an anode, and a solid oxide membrane. A reducing chamber housing the metal oxide having a higher oxidation state to be reduced is provided. A solid oxide membrane (SOM) process is used to generate vapor of the highly reactive metal in the electrolysis chamber. The vapor of the highly reactive metal is directed to the reducing chamber, where the vapor of the highly reactive metal reacts with the metal oxide to be reduced to provide a metal or metal oxide having a lowest oxidation state and an oxide of the highly reactive metal (e.g. MgO). In certain embodiments, the oxide of the highly reactive metal is recycled back to the flux in the electrolysis chamber.

    摘要翻译: 提供了一种方法和装置,其允许包括具有稳定氧化物相的金属和具有可变价电子的金属的金属通过无害环境和经济上可行的电解方法从其各自的矿石中提取。 用于降低金属氧化物中的金属的氧化态的方法包括提供电解室,其容纳含有高反应性金属(例如Mg)并具有阴极,阳极和固体氧化物膜的焊剂。 提供容纳要还原的氧化态较高的金属氧化物的还原室。 使用固体氧化物膜(SOM)工艺在电解室中产生高反应性金属的蒸气。 高活性金属的蒸气被引导到还原室,其中高反应性金属的蒸气与金属氧化物反应以还原以提供具有最低氧化态的金属或金属氧化物和高活性金属的氧化物 (如MgO)。 在某些实施方案中,将高活性金属的氧化物再循环回电解室中的助熔剂。

    Magnesiothermic Methods Of Producing High-Purity Silicon
    46.
    发明申请
    Magnesiothermic Methods Of Producing High-Purity Silicon 有权
    生产高纯度硅的氧化镁方法

    公开(公告)号:US20100158782A1

    公开(公告)日:2010-06-24

    申请号:US12547162

    申请日:2009-08-25

    申请人: James G. Blencoe

    发明人: James G. Blencoe

    IPC分类号: C01B33/023 C01B33/12 C25C1/22

    摘要: Magnesiothermic methods of producing solid silicon are provided. In a first embodiment, solid silica and magnesium gas are reacted at a temperature from 400° C. to 1000° C. to produce solid silicon and solid magnesium oxide, the silicon having a purity from 98.0 to 99.9999%. The silicon is separated from the magnesium oxide using an electrostatic technology. In a second embodiment, the solid silicon is reacted with magnesium gas to produce solid magnesium silicide. The magnesium silicide is contacted with hydrogen chloride gas or hydrochloric acid to produce silane gas. The silane gas is thermally decomposed to produce solid silicon and hydrogen gas, the silicon having a purity of at least 99.9999%. The solid silicon and hydrogen gas are separated into two processing streams. The hydrogen gas is recycled for reaction with chlorine gas to produce hydrogen chloride gas.

    摘要翻译: 提供了生产固体硅的氧化镁的方法。 在第一实施方案中,固体二氧化硅和镁气体在400℃至1000℃的温度下反应,生成固体硅和固体氧化镁,其纯度为98.0至99.9999%。 使用静电技术将硅与氧化镁分离。 在第二个实施方案中,固体硅与镁气反应产生固体硅化镁。 将硅化镁与氯化氢气体或盐酸接触以产生硅烷气体。 硅烷气体被热分解以产生固体硅和氢气,硅的纯度至少为99.9999%。 将固体硅和氢气分离成两个处理流。 将氢气再循环用于与氯气反应以产生氯化氢气体。

    PROCESSING OF METAL CHLORIDE SOLUTIONS AND METHOD AND APPARATUS FOR PRODUCING DIRECT REDUCED IRON
    47.
    发明申请
    PROCESSING OF METAL CHLORIDE SOLUTIONS AND METHOD AND APPARATUS FOR PRODUCING DIRECT REDUCED IRON 审中-公开
    金属氯化物解决方案的处理及生产直接还原铁的方法和装置

    公开(公告)号:US20090095132A1

    公开(公告)日:2009-04-16

    申请号:US11917287

    申请日:2006-06-15

    申请人: John David Winter

    发明人: John David Winter

    IPC分类号: C21B15/00

    摘要: A process and apparatus for regeneration of acid and metal from spent acid liquors includes the steps of, optionally, concentrating (110) the liquor to a concentrated liquor or solid, pyrohydrolysing (114) to regenerate the acid and form metal oxide pellets, and reducing the oxide to metal in a two stage reduction reactor (116, 118) using a partially combusted fuel as reducing agent. Also disclosed is a two-stage reduction process and reactor for production of direct reduced iron (DRI) from iron oxide ores or wastes, including a first stage (416) in which the oxide feed is contacted with a fuel and a sub-stoichiometric amount of an oxygen source to produce a lower oxidation state oxide, and a second stage (418) in which the lower oxidation stage oxide is contacted with off-gases from the first stage to produce iron metal.

    摘要翻译: 用于从废酸液体再生酸和金属的方法和装置包括以下步骤:任选地将(110)浓缩液体(110)至浓缩液体或固体,热解(114)以再生酸并形成金属氧化物颗粒,并还原 使用部分燃烧的燃料作为还原剂的二级还原反应器(116,118)中的金属氧化物。 还公开了用于从氧化铁矿石或废物生产直接还原铁(DRI)的二级还原方法和反应器,包括第一级(416),其中氧化物进料与燃料接触,亚化学计量 的氧源以产生较低氧化态氧化物,以及第二阶段(418),其中较低氧化阶段氧化物与来自第一阶段的废气接触以产生铁金属。

    Method for producing a metallic alloy by dissolution, oxidation and chemical reduction
    48.
    发明授权
    Method for producing a metallic alloy by dissolution, oxidation and chemical reduction 有权
    通过溶解,氧化和化学还原生产金属合金的方法

    公开(公告)号:US07510680B2

    公开(公告)日:2009-03-31

    申请号:US10318763

    申请日:2002-12-13

    IPC分类号: B22F1/00 C22C1/10

    CPC分类号: C22B5/18 C22B34/1263 C22C1/02

    摘要: A metallic alloy having at least two metallic constituents is produced by first furnishing at least two non-oxide compounds, wherein the non-oxide compounds collectively comprise each of the metallic constituents, and wherein each of the non-oxide compounds is soluble in a mutual solvent. The method further includes dissolving the non-oxide compounds in the mutual solvent to produce a solution containing the metallic constituents, thereafter heating the solution to remove the mutual solvent and oxidize the metallic constituents to produce a mixed metallic oxide, thereafter cooling the mixed metallic oxide to form a substantially homogeneous mixed metallic oxide solid mass, and thereafter chemically reducing the mixed metallic oxide solid mass to produce a metallic alloy. The metallic alloy may be consolidated or otherwise processed.

    摘要翻译: 通过首先提供至少两种非氧化物化合物来制备具有至少两种金属成分的金属合金,其中非氧化物化合物共同地包含每种金属成分,并且其中每种非氧化物化合物可溶于相互 溶剂。 该方法还包括将非氧化物化合物溶解在相互溶剂中以产生含有金属组分的溶液,然后加热溶液以除去互溶剂并氧化金属组分以产生混合金属氧化物,然后冷却混合的金属氧化物 以形成基本上均匀的混合金属氧化物固体物质,然后化学还原混合的金属氧化物固体物质以产生金属合金。 金属合金可以被固结或以其它方式加工。

    Process and plant for reducing solids containing iron oxide
    49.
    发明申请
    Process and plant for reducing solids containing iron oxide 审中-公开
    用于还原含有氧化铁的固体的方法和装置

    公开(公告)号:US20070079666A1

    公开(公告)日:2007-04-12

    申请号:US10567821

    申请日:2004-07-16

    IPC分类号: C21B15/00

    摘要: This invention relates to a process for reducing solids containing iron oxide, such as iron ore, in which fine-grained solids are heated and at least partly calcined in a pre-heating stage (2, 9). In a first fluidized-bed reactor (14) downstream of the preheating stage (2, 9), the solids are prereduced and reduced further in a second fluidized-bed reactor (16). Downstream of the second reactor (16) a briquetting stage (20) is provided, in which the solids are briquetted at a temperature above 500° C. To increase the energy efficiency of the process and improve the flowability of the solids in the briquetting stage (20), magnesite is added to the preheating stage (2, 9) together with the solids containing iron oxide, which magnesite is at least partly calcined in the preheating stage (2, 9) to obtain magnesium oxide. Furthermore, the invention relates to a corresponding plant.

    摘要翻译: 本发明涉及一种用于还原含铁氧化物的固体的方法,例如铁矿石,其中细粒固体被加热并且在预热阶段(2,9)中至少部分地煅烧。 在预热阶段(2,9)下游的第一流化床反应器(14)中,固体在第二流化床反应器(16)中被进一步还原并还原。 在第二反应器(16)的下游提供压块级(20),其中固体在500℃以上的压块压块。为了提高该方法的能量效率并提高压块阶段的固体的流动性 (20)中,将菱镁矿与含有氧化铁的固体一起加入到预热段(2,9)中,该氧化铁在预热阶段(2,9)中至少部分地煅烧以获得氧化镁。 此外,本发明涉及相应的设备。