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公开(公告)号：US20230366115A1
公开(公告)日：2023-11-16
申请号：US18226626
申请日：2023-07-26
申请人： ELECTRASTEEL, INC.
摘要： Methods and systems for producing are disclosed. A method for producing iron, for example, comprises: providing an iron-containing ore to a dissolution subsystem comprising a first electrochemical cell; wherein the first anolyte has a different composition than the first catholyte; dissolving at least a portion of the iron-containing ore using an acid to form an acidic iron-salt solution having dissolved first Fe3+ ions; providing at least a portion of the acidic iron-salt solution to the first cathodic chamber; first electrochemically reducing said first Fe3+ ions in the first catholyte to form Fe2+ ions; transferring the formed Fe2+ ions from the dissolution subsystem to an iron-plating subsystem having a second electrochemical cell; second electrochemically reducing a first portion of the transferred formed Fe2+ ions to Fe metal at a second cathode of the second electrochemical cell; and removing the Fe metal.
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公开(公告)号：US11767604B2
公开(公告)日：2023-09-26
申请号：US17884260
申请日：2022-08-09
申请人： ELECTRASTEEL, INC.
摘要： Methods and systems for producing are disclosed. A method for producing iron, for example, comprises: providing an iron-containing ore to a dissolution subsystem comprising a first electrochemical cell; wherein the first anolyte has a different composition than the first catholyte; dissolving at least a portion of the iron-containing ore using an acid to form an acidic iron-salt solution having dissolved first Fe3+ ions; providing at least a portion of the acidic iron-salt solution to the first cathodic chamber; first electrochemically reducing said first Fe3+ ions in the first catholyte to form Fe2+ ions; transferring the formed Fe2+ ions from the dissolution subsystem to an iron-plating subsystem having a second electrochemical cell; second electrochemically reducing a first portion of the transferred formed Fe2+ ions to Fe metal at a second cathode of the second electrochemical cell; and removing the Fe metal.
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公开(公告)号：US20190119784A1
公开(公告)日：2019-04-25
申请号：US15788953
申请日：2017-10-20
发明人： Samira SOKHANVARAN , Dogan PAKTUNC
CPC分类号： C22B34/32 , C21B13/008 , C22B5/00 , C22B5/10
摘要： A method of chromite reduction using cryolite (Na3AlF6) as an additive. The cryolite used may be pure cryolite or an impure mixture containing cryolite, such as the bath material produced as waste or as a by-product of aluminum smelting processes. In one embodiment, the reduction product is re-melted at a higher temperature to form larger metallic particles. In another embodiment, the chromite ore is granulated with cryolite particles and carbon reductant particles before being reduced.
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公开(公告)号：US20170009319A1
公开(公告)日：2017-01-12
申请号：US15094857
申请日：2016-04-08
IPC分类号： C22B21/00 , C22B7/04 , C22B9/05 , F27D3/16 , F27B7/10 , F27B7/16 , F27B7/20 , C22B21/06 , F27B7/06
CPC分类号： C22B21/0092 , C22B5/00 , C22B7/003 , C22B7/04 , C22B9/055 , C22B13/045 , C22B19/20 , C22B21/00 , C22B21/0069 , C22B21/064 , C22B23/04 , F27B7/06 , F27B7/10 , F27B7/16 , F27B7/2016 , F27B17/00 , F27D3/16 , F27D2003/163 , F27D2003/167 , Y02P10/218 , Y02P10/232 , Y02P10/262
摘要： A process and an apparatus are disclosed for improved recovery of metal from hot and cold dross, wherein a dross-treating furnace is provided with a filling material with good capacity to store heat. This filling material is preheated to a desired temperature by injection of an oxidizing gas to burn non-recoverable metal remaining in the filling material after tapping of the recoverable metal contained in the dross and discharging of the treatment residue. When dross is treated in such furnace, the heat emanating by conduction from the filling material is sufficient to melt and separate the recoverable metal contained in the dross, without addition of an external heat source, such as fuel or gas burners, plasma torches or electric arcs and without use of any salt fluxes. Furthermore, the recovered metal being in the molten state can be fed to the molten metal holding furnace without cooling the melt; in addition, the non-use of fluxing salt for the treatment means that the non-contaminated residue can be used as a cover for the electrolytic cells in the case of aluminum. In the case of zinc dross, the residue is a valuable zinc oxide by-product very low in contaminants.
摘要翻译： 公开了一种用于从热和冷浮渣中改善金属回收的方法和装置，其中，浮渣处理炉具有能够储存热量的填充材料。 通过注入氧化气体将该填充材料预热至期望的温度，以在开采渣中含有的可回收金属并排出处理残渣后，将残留在填充材料中的不可回收金属燃烧。 当在这种炉子中处理浮渣时，通过从填充材料的传导发出的热量足以熔化和分离渣滓中包含的可回收金属，而不需要添加外部热源，例如燃料或气体燃烧器，等离子炬或电 弧并且不使用任何盐流。 此外，处于熔融状态的回收金属可以不熔化熔体而被供给到熔融金属保持炉中; 此外，不使用助熔盐用于处理意味着在铝的情况下，未污染的残余物可以用作电解池的覆盖物。 在锌渣的情况下，残留物是有价值的氧化锌副产物，污染物非常低。
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公开(公告)号：US20150315155A1
公开(公告)日：2015-11-05
申请号：US14556547
申请日：2014-12-01
申请人： CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE , UNIVERSITE DE PICARDIE JULES VERNE , UNIVERSITE DE TECHNOLOGIE DE VARSOVIE , UNIVERSITE DE ROME "LA SAPIENZA"
发明人： Michel Armand , Sylvie Grugeon , Stephane Laruelle , Maria Bukowska , Przemyslaw Szczecinski , Wladislaw Wieczorek , Leszek Niedzicky , Bruno Scrosati , Stefania Panero , Priscilla Realle
IPC分类号： C07D233/90 , H01M10/0569
CPC分类号： C07D233/90 , B22F9/24 , B22F2009/245 , B22F2999/00 , C07D207/06 , C07D213/18 , C07D233/00 , C07D233/58 , C22B5/00 , H01M4/5825 , H01M10/052 , H01M10/0525 , H01M10/0568 , H01M10/0569 , H01M2300/0028 , B22F2202/13 , B22F2202/11
摘要： A pentacyclic anion salt is provided for use thereof in electrolyte compositions. The compound has an inorganic, organic or organometallic cation M of valency m (1≦m≦3) and m anions corresponding to the formula (I) in which Rf is a —CFZ′Z″ group in which Z′ is F or a perflouroalkyl group having from 1 to 3 carbon atoms, and Z″ is an H, F or Cl group, an optionally fluorinated or perfluorinated alkoxy group having from 1 to 5 carbon atoms, an optionally fluorinated or perfluorinated oxaalkoxy group having 1 to 5 carbon atoms or an optionally fluorinated or perfluorinated alkyl group having from 1 to 5 carbon atoms; Z″ being other than F when Z′ is F. An electrolyte composition comprises said salt in solution in a liquid solvent or a polymer solvent.
摘要翻译： 提供五环阴离子盐用于电解质组合物中。 该化合物具有价态m（1＆nlE; m＆lt; 1; 3）的无机，有机或有机金属阳离子M和对应于式（I）的阴离子，其中R f是其中Z'为F的-CFZ'Z“基团或 具有1至3个碳原子的全芳基烷基，Z“为H，F或Cl基团，具有1至5个碳原子的任选氟化或全氟化烷氧基，任选氟化或全氟化的具有1至5个碳原子的氧杂烷氧基 或具有1至5个碳原子的任选氟化或全氟化的烷基; Z“在Z'为F时为F。电解质组合物包含溶液中的所述盐在液体溶剂或聚合物溶剂中。
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6.发明授权Method and system for producing direct reduced iron and/or hot metal using brown coal 有权使用褐煤生产直接还原铁和/或热金属的方法和系统公开(公告)号：US08999033B2
公开(公告)日：2015-04-07
申请号：US13325890
申请日：2011-12-14
申请人： Masahiko Tetsumoto , Todd Astoria
发明人： Masahiko Tetsumoto , Todd Astoria
CPC分类号： C21B13/0066 , C21B13/0046 , C21C2100/06 , C22B1/16 , C22B5/00 , Y02P10/136
摘要： The present invention provides a method for producing direct reduced iron and/or hot metal using high-moisture content carbonaceous material, including: agglomerating carbonaceous material from the high-moisture content carbonaceous material with a metal oxide-bearing material to form an agglomerate suitable for use in a direct reduction and/or hot metal producing process. The method also includes distilling the high-moisture content carbonaceous material. The method further includes dry quenching the carbonaceous material obtained from the distilling step. The method still further includes drying the high-moisture content carbonaceous material with energy from a hot off gas from a furnace for producing direct reduced iron and/or hot metal prior to the distilling step.
摘要翻译： 本发明提供了一种使用高含水量的碳质材料生产直接还原铁和/或热金属的方法，包括：用含金属氧化物的材料将含碳量高的含碳材料的碳质材料凝集成形成适于 用于直接还原和/或热金属生产过程。 该方法还包括蒸馏高含水量的碳质材料。 该方法还包括对从蒸馏步骤获得的含碳材料进行干式淬火。 该方法还包括在来自蒸馏步骤的直接还原铁和/或热金属生产的炉子的热气体的能量下干燥高含水量的碳质材料。
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公开(公告)号：US20140020510A1
公开(公告)日：2014-01-23
申请号：US13948929
申请日：2013-07-23
申请人： VALE S/A
CPC分类号： C22B5/00 , C22B1/02 , C22B1/06 , C22B1/08 , C22B15/0026 , C22B19/20 , C22B23/005 , C22B23/04
摘要： The present invention discloses a new recovery of base metals from sulphide ores and concentrates, which comprises mixing the base metal's ore with ferric salts, heating the said mixture; adding water to form a pulp, stirring and filtering the pulp.
摘要翻译： 本发明公开了从硫化矿石和浓缩物中回收贱金属，其中包括将贱金属的矿石与铁盐混合，加热所述混合物; 加水以形成纸浆，搅拌和过滤纸浆。
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8.发明授权Processes for preparing valve metal powders, powders prepared thereby and uses therefor 有权用于制备阀门金属粉末的方法，由此制备的粉末并用于其公开(公告)号：US08623112B2
公开(公告)日：2014-01-07
申请号：US12067063
申请日：2006-09-07
申请人： Josua Löffelholz , Jürgen Hilpert
发明人： Josua Löffelholz , Jürgen Hilpert
CPC分类号： H01G2/00 , B22F1/0003 , B22F9/24 , B22F2998/00 , C22B5/00 , C22B34/24 , C22C27/02 , H01G9/0525 , Y02P10/212 , Y10T428/12 , Y10T428/2982 , B22F1/0018 , B22F1/0096
摘要： Processes comprising: melting a mixture comprising a valve metal precursor and a diluting agent in at least one first vessel under a first set of temperature and residence time conditions; transferring the mixture to at least one second vessel; and initiating, in the at least one second vessel, a reaction of the valve metal precursor to form a valve metal under a second set of temperature and residence time conditions; valve metal powder prepared thereby and uses therefor.
摘要翻译： 方法包括：在第一组温度和停留时间条件下，将至少一个第一容器中的包含阀金属前体和稀释剂的混合物熔化; 将混合物转移至至少一个第二容器; 以及在所述至少一个第二容器中，在第二组温度和停留时间条件下启动所述阀金属前体在形成阀金属的反应; 由此制备阀门金属粉末并用于其。
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公开(公告)号：US20130333523A1
公开(公告)日：2013-12-19
申请号：US13994533
申请日：2012-02-09
申请人： Rodney James Dry
发明人： Rodney James Dry
CPC分类号： C22B5/00 , C21B13/0006 , C21B13/0013 , C21B13/0026 , C21C5/56 , C21C7/0037 , F27B3/02 , F27B3/225 , F27D3/18 , Y02P10/136
摘要： A molten bath-based process for direct smelting metalliferous material and producing molten metal in a direct smelting vessel that contains a molten bath that has a metal layer that is at least 900 mm deep. The process includes selecting operating parameters of the process so that feed material (solid material and carrier gas) is injected from above the metal layer into the metal layer via at least one solids injection lance with sufficient momentum to penetrate to a depth of at least 100 mm below a nominal quiescent surface of the metal layer to cause upward movement of molten material and gas from the metal layer.
摘要翻译： 一种用于直接熔炼含金属材料并在直接熔炼容器中生产熔融金属的熔融浴法，其包含具有至少900mm深的金属层的熔池。 该方法包括选择该方法的操作参数，使得通过至少一个具有足够动量的固体注入喷枪将进料（固体材料和载气）从金属层上方注入金属层，以便穿透至少至少100的深度 mm以下的金属层的标称静止表面，以引起熔融材料和气体从金属层向上移动。
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10.发明授权公开(公告)号：US08535573B2
公开(公告)日：2013-09-17
申请号：US12734489
申请日：2008-10-31
申请人： Kazuomi Ryoshi , Yasumasa Hattori , Hiroko Oshita
发明人： Kazuomi Ryoshi , Yasumasa Hattori , Hiroko Oshita
CPC分类号： B82Y30/00 , B22F1/0022 , B22F1/025 , B22F9/24 , B22F2998/00 , B22F2999/00 , C22B5/00 , C22B15/0084 , Y02P10/236 , B22F2301/10 , B22F2301/25 , B22F2304/054
摘要： A method for producing copper fine particles by heating and reducing an oxide, hydroxide, or salt of copper included in a solution of ethylene glycol, diethylene glycol, or triethylene glycol, the method comprising controlling a total halogen content of the solution to be less than 20 ppm by mass relative to copper and adding a water-soluble polymer as a dispersant such as polyethyleneimine and a noble metal compound or noble metal colloid for nucleation to the solution. This method makes it possible to provide copper fine particles for use in a wiring material, which are very fine as small as 50 nm or less in average particle size and high dispersibility, extremely low undesirable halogen content, and can be sintered at a low temperature.
摘要翻译： 通过加热和还原包含在乙二醇，二甘醇或三甘醇的溶液中的铜的氧化物，氢氧化物或盐的铜生产铜微粒的方法，包括将溶液的总卤素含量控制在小于 加入相对于铜的20质量ppm，并加入作为分散剂的水溶性聚合物，例如聚乙烯亚胺和用于成核的贵金属化合物或贵金属胶体。 该方法使得可以提供用于布线材料的铜微粒，其平均粒径小到50nm以下，分散性高，极低的不希望的卤素含量，并且可以在低温下烧结 。
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