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1.发明授权公开(公告)号：US11261532B2
公开(公告)日：2022-03-01
申请号：US16551141
申请日：2019-08-26
申请人： METALYSIS LIMITED
发明人： Greg Doughty
摘要： A method of electrolytic reduction of a feedstock comprising oxygen and a first metal comprises the steps of, arranging the feedstock in contact with a cathode and a molten salt within an electrolysis cell, arranging an anode in contact with the molten salt within the electrolysis cell, the anode comprising a molten second metal and applying a potential between the anode and the cathode such that oxygen is removed from the feedstock to form a reduced feedstock. The oxygen removed from the feedstock reacts with the molten second metal to form an oxide comprising the second metal. The second metal is aluminium. The reduced feedstock may comprise a proportion of aluminium.
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2.发明申请公开(公告)号：US20200095696A1
公开(公告)日：2020-03-26
申请号：US16551141
申请日：2019-08-26
申请人： METALYSIS LIMITED
发明人： GREG DOUGHTY
摘要： A method of electrolytic reduction of a feedstock comprising oxygen and a first metal comprises the steps of, arranging the feedstock in contact with a cathode and a molten salt within an electrolysis cell, arranging an anode in contact with the molten salt within the electrolysis cell, the anode comprising a molten second metal and applying a potential between the anode and the cathode such that oxygen is removed from the feedstock to form a reduced feedstock. The oxygen removed from the feedstock reacts with the molten second metal to form an oxide comprising the second metal. The second metal is aluminium. The reduced feedstock may comprise a proportion of aluminium.
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公开(公告)号：US20170152606A1
公开(公告)日：2017-06-01
申请号：US15321489
申请日：2015-06-25
申请人： METALYSIS LIMITED
发明人： IAN MELLOR , GREG DOUGHTY
摘要： A method of producing metallic tantalum comprises the steps of providing a precursor comprising a tantalate of a first metal, arranging the precursor material in contact with a molten salt in an electrolytic cell, the electrolysis cell further comprising an anode and a cathode arranged in contact with the molten salt, and applying a potential between the anode and the cathode such that the precursor material is reduced to tantalum. The first metal is an alkali metal or an alkaline earth metal. The anode does not comprise a carbon material, which prevents contamination of the tantalum and improves current efficiency of the process.
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公开(公告)号：US20150129432A1
公开(公告)日：2015-05-14
申请号：US14401462
申请日：2013-05-10
申请人： METALYSIS LIMITED
CPC分类号： C25C3/00 , C25C3/02 , C25C3/04 , C25C3/06 , C25C3/26 , C25C3/28 , C25C3/30 , C25C3/32 , C25C3/34
摘要： In a method for removing a substance from a feedstock comprising a solid metal or a solid metal compound, the feedstock is contacted with a fused-salt melt. The fused-salt melt contains a fused salt, a reactive-metal compound, and a reactive metal. The fused salt comprises an anion species which is different from the substance, the reactive-metal compound comprises the reactive metal and the substance, and the reactive metal is capable of reaction to remove at least some of the substance from the feedstock. A cathode and an anode contact the melt, and the feedstock contacts the cathode. An electrical current is applied between the cathode and the anode such that at least a portion of the substance is removed from the feedstock. During the application of the current, a quantity of the reactive metal in the melt is maintained sufficient to prevent oxidation of the anion species of the fused salt at the anode. The method may advantageously be usable for removing the substance from successive batches of the feedstock, where the applied current is controlled such that the fused-salt melt after processing a batch contains the quantity of the reactive metal sufficient to prevent oxidation of the anion species at the anode.
摘要翻译： 在从包含固体金属或固体金属化合物的原料中除去物质的方法中，原料与熔融盐熔体接触。 熔盐熔体包含熔融盐，反应性金属化合物和活性金属。 熔融盐包括与物质不同的阴离子物质，反应性金属化合物包含反应性金属和物质，反应性金属能够从原料中除去至少一些物质。 阴极和阳极接触熔体，原料接触阴极。 在阴极和阳极之间施加电流，使得至少一部分物质从原料中除去。 在施加电流期间，熔体中活性金属的量保持足以防止阳极处的熔融盐的阴离子种类的氧化。 该方法可有利地用于从连续批次的原料中除去物质，其中施加的电流被控制，使得在处理批次之后的熔融盐熔体含有足以防止阴离子物质氧化的反应性金属的量 阳极。
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公开(公告)号：US09017541B2
公开(公告)日：2015-04-28
申请号：US13322584
申请日：2010-05-28
摘要： The present invention relates to the electrodeposition of elemental zirconium at a temperature of less than 100° C. from a mixture of a Lewis acid, a zirconium salt and an ionic liquid.
摘要翻译： 本发明涉及从路易斯酸，锆盐和离子液体的混合物在小于100℃的温度下电沉积元素锆。
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公开(公告)号：US20110308965A1
公开(公告)日：2011-12-22
申请号：US13201135
申请日：2010-02-15
CPC分类号： B22F9/18 , B22F9/20 , C22B5/02 , C22B34/129 , C22B34/24 , C25C3/26 , C25C3/34 , C25C5/04 , H01G9/0525
摘要： A method of producing metallic powder for use in the manufacture of a capacitor comprises the step of reducing a non-metallic compound to metal in contact with a molten salt. The salt comprises, for at least a portion of the process, a dopant element that acts as a sinter retardant in the metal. In preferred examples, the metallic powder is Ta or Nb powder produced by the reduction of a Ta or Nb oxide and the dopant is boron, nitrogen, or phosphorous.
摘要翻译： 用于制造电容器的金属粉末的制造方法包括将非金属化合物还原成与熔融盐接触的金属的工序。 对于该方法的至少一部分，该盐包含用作金属中的烧结阻燃剂的掺杂剂元素。 在优选实施例中，金属粉末是通过还原Ta或Nb氧化物而产生的Ta或Nb粉末，并且掺杂剂是硼，氮或磷。
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7.发明申请公开(公告)号：US20050145065A1
公开(公告)日：2005-07-07
申请号：US10749893
申请日：2003-12-31
申请人： William Carter , Mark Benz , Clifford Shamblen , Andrew Woodfield
发明人： William Carter , Mark Benz , Clifford Shamblen , Andrew Woodfield
CPC分类号： C22B34/1295 , C22B9/18 , Y02P10/138
摘要： An electroslag-cold hearth (ESCH) system for refining or producing a desired metal or metal alloy is described. The system includes at least one cold hearth vessel capable of holding a pool of molten liquid metal and an overlying slag layer, and an ingot mold laterally off-set from the cold hearth. A source of raw material, e.g., a feed electrode, is positioned above the cold hearth, and fed into the molten slag in a refining operation. A flow-over dam separates the ingot mold from the cold hearth, preventing the flow of inclusions and other foreign bodies into the ingot mold. In some instances, a non-consumable electrode provides additional thermal energy to the slag. In the production operation, the metal source can be a salt from which the desired metal can be electrochemically extracted. Related methods for refining or producing metals such as titanium alloys are also described.
摘要翻译： 描述了用于精炼或生产所需金属或金属合金的电渣冷床（ESCH）系统。 该系统包括至少一个能够容纳熔融液体金属池和上覆渣层的冷壁炉容器，以及从冷炉侧向偏移的铸锭模具。 原料源例如进料电极位于冷炉的上方，并在精炼操作中进料到熔渣中。 流水坝将铸模与冷炉分开，防止夹杂物和其他异物流入铸锭模具。 在一些情况下，非消耗性电极为炉渣提供额外的热能。 在生产操作中，金属源可以是可以电化学提取所需金属的盐。 还描述了用于精炼或生产诸如钛合金的金属的相关方法。
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公开(公告)号：US06884279B2
公开(公告)日：2005-04-26
申请号：US10206608
申请日：2002-07-25
IPC分类号： F02C7/00 , B22D1/00 , B22D7/00 , B22D21/00 , B22F9/18 , C22B4/00 , C22B4/06 , C22B34/12 , C22C1/00 , C25C3/26 , B22F5/04
CPC分类号： C22B34/1295 , C22B4/005 , C22B4/06 , C22B34/1263 , C22B34/129
摘要： A metallic article is produced by furnishing one or more nonmetallic precursor compound comprising the metallic constituent element(s), and chemically reducing the nonmetallic precursor compound(s) to produce an initial metallic particle, preferably having a size of no greater than about 0.070 inch, without melting the initial metallic particle. The initial metallic particle is thereafter melted and solidified to produce the metallic article. By this approach, the incidence of chemical defects in the metal article is minimized. The melted-and-solidified metal may be used in the as-cast form, or it may be converted to billet and further worked to the final form.
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公开(公告)号：US6074545A
公开(公告)日：2000-06-13
申请号：US18539
申请日：1998-02-04
IPC分类号： C25B20060101 , C25C20060101 , C25C3/26 , C25C3/28 , C25C3/32 , C25C3/34 , C25C3/36 , C25C7/00
摘要： A Process for the electrolytic production of metals particularly titanium and alloys starting from the corresponding compounds is disclosed, by means of an apparatus for the electrochemical extraction including: (1) a cathode-crucible containing a mass of solidified metal, a liquid electrolyte with a density which is lower than that of the metal and a pool of liquid metal produced; (2) one or more non-consumable anodes particularly immersed in the electrolyte with means for regulating their distance from the cathodic surface; (3) a feeding system to the electrolyte of the compounds of the metals, of the electrolyte constituents and of alloying materials; (4) a power supply which feeds direct current to the liquid metal, and through the electrolyte, to the anodes, and causes the cathodic reduction of the metal in liquid form and the evolution of anodic gas, with the heat generation which maintains the electrolyte in the molten state; and (5) an air-tight containment structure in which the anodic gases generated during the electrolysis are collected.
摘要翻译： 公开了一种用于电化学生产金属的方法，特别是从相应的化合物开始的钛和合金的方法，该方法通过用于电化学提取的装置包括：（1）含有大量固化金属的阴极坩埚，具有 密度低于金属和生产的液态金属池; （2）一个或多个非消耗性阳极，特别是浸入电解质中，用于调节其与阴极表面的距离的装置; （3）向金属化合物，电解质成分和合金材料的电解质供料系统; （4）将直流电流供给液态金属，并通过电解液供给阳极的电源，并且使维持电解液的发热产生液体形式的金属的阴极还原和阳极气体的放出 在熔融状态; （5）收集在电解过程中产生的阳极气体的气密容纳结构。
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10.发明授权Electrochemical-metallothermic reduction of zirconium in molten salt solutions 失效熔融盐溶液中锆的电化学 - 金属热还原
公开(公告)号：US4923577A
公开(公告)日：1990-05-08
申请号：US242564
申请日：1988-09-12
申请人： David F. McLaughlin , Francis Talko
发明人： David F. McLaughlin , Francis Talko
CPC分类号： C22B34/10 , C22B34/1272 , C22B34/14 , C25C3/26
摘要： This is a method of reducing zirconium chloride to a metal product by introducing zirconium chloride into a molten salt bath containing at least one alkali metal chloride and at least one alkaline earth metal chloride; and electrochemically reducing alkaline earth metal chloride to a metallic alkaline earth metal in the molten salt bath, with the reduced alkaline earth metal reacting with the zirconium chloride to produce zirconium metal. By using this electrochemical-metallothermic reduction, zirconium metal is produced and insoluble subchlorides of zirconium in the metal product are generally avoided.Preferably, the molten salt in the molten salt bath consists essentially of a mixture of lithium chloride, potassium chloride, magnesium chloride and zirconium or hafnium chloride. The method is especially useful as part of a distillation system for separating hafnium from zirconium, possibly after the zirconium chloride is removed from the distillation system, but especially where the distillation system has an alkali metal chloride and alkaline earth metal chloride recirculating solvent and the electrochemical-metallothermic reduction is used to strip the solvent of zirconium chloride.This process can also be used for hafnium and titanium, especially when a powder metal product is desired.
摘要翻译： 这是通过将氯化锆引入含有至少一种碱金属氯化物和至少一种碱土金属氯化物的熔盐浴中而将氯化锆还原成金属产物的方法; 并在熔融盐浴中将碱土金属氯化物电化学还原成金属碱土金属，还原的碱土金属与氯化锆反应生成锆金属。 通过使用这种电化学 - 金属热还原，可以生产锆金属，通常避免金属产物中锆的不溶性三氯甲烷。 优选地，熔融盐浴中的熔融盐基本上由氯化锂，氯化钾，氯化镁和锆或氯化铪的混合物组成。 该方法作为用于从锆中分离铪的蒸馏系统的一部分特别有用，可能在从蒸馏系统中除去氯化锆之后，特别是在蒸馏系统具有碱金属氯化物和碱土金属氯化物再循环溶剂以及电化学 - 金属热还原用于剥离氯化锆的溶剂。 该方法也可用于铪和钛，特别是当需要粉末金属产品时。
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