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1.发明公开公开(公告)号：US20240247391A1
公开(公告)日：2024-07-25
申请号：US18289876
申请日：2022-04-21
申请人： ZHENGZHOU UNIVERSITY
发明人： Zhongwei ZHAO
摘要： The present application belongs to the technical field of aluminum metallurgy, and specifically relates to a method for producing metallic aluminum and polysilicon with a high-silicon aluminum-containing resource. The method includes: pretreating the high-silicon aluminum-containing resource to obtain an aluminum-silicon oxide material; the aluminum-silicon oxide material is used to produce a metallic aluminum product and a copper-aluminum-silicon alloy with silicon enriched by molten salt electrolysis in a double-chamber electrolytic cell; and the copper-aluminum-silicon alloy is used to produce an aluminum-silicon alloy and/or polysilicon by molten salt electrolysis in a single-chamber electrolytic cell, and further separating the aluminum-silicon alloy by physical methods to obtain polysilicon. The present application has characteristics such as low production cost, continuous electrolysis operations, high product quality, and environmental friendliness.
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公开(公告)号：US11339490B2
公开(公告)日：2022-05-24
申请号：US15551873
申请日：2015-04-23
IPC分类号： C25C3/12 , C22C19/07 , C25B11/043 , C25B11/055 , C04B41/51 , C04B41/88 , C25C3/18
摘要： The invention relates to vertical or inclined electrodes of an electrolyzer for electrolytically producing aluminum from aluminum oxide. An electrode contains an electrode base and a surface coating based on refractory ceramics. According to a first variant of the invention, the electrode base is made of a composite material containing between 5% and 90% by mass of refractory ceramics, and of at least one metal having a melting temperature exceeding 1000° C., which forms refractory intermetallic compounds upon interaction with aluminum, and/or containing at least one alloy of such a metal. According to a second variant of the invention, the electrode base is made of a metal alloy, for example structural steel or another alloy, and the surface of the electrode base has applied thereto an intermediary layer consisting of a composite material having the composition described above.
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公开(公告)号：US10648094B2
公开(公告)日：2020-05-12
申请号：US15416559
申请日：2017-01-26
发明人： Leroy E. D'Astolfo , Steven A. Czekaj , Yimin Ruan
摘要： An insulation assembly is provided, including: a body of an insulating material with a lower surface configured to contact a sidewall an electrolysis cell; an upper surface generally opposed to the lower surface; and a perimetrical sidewall extending between the upper surface and the lower surface to surround the remainder of the body, the perimetrical sidewall including: an inner portion configured to face an anode surface of the electrolysis cell and provide a gap between the body and the anode surface of the electrolysis cell; wherein the body is configured to extend from the sidewall towards the anode surface.
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公开(公告)号：US20200080213A1
公开(公告)日：2020-03-12
申请号：US16307869
申请日：2017-05-30
发明人： Dmitrij Aleksandrovich SIMAKOV , Aleksandr Olegovich GUSEV , Kirill Borisovich BAKIN , Aleksandr Viktorovich DONTSOV
摘要： This invention relates to nonferrous metallurgy, in particular to a device and method for electrolyte composition analysis based on differential thermal measurements for aluminum electrolysis control. The device is comprised of a metal body including a reference material and an electrolyte sample receptacle, temperature sensors immersed into the reference material and in an electrolyte sample, a system for registration, data processing, and visualization of obtained results. A method includes immersing a metal body into an electrolyte; filling a receptacles with the molten electrolyte; removing and cooling down the metal body having the filled receptacle above a crust on the molten electrolyte surface; drawing and analyzing differential-thermal curves based on which the liquidus temperature, electrolyte superheating and phase and blend compositions of electrolyte solid samples are determined taking into account all crystallizing phases the content of which in the electrolyte sample is no less than 3 wt %.
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公开(公告)号：US20190330752A1
公开(公告)日：2019-10-31
申请号：US16506081
申请日：2019-07-09
申请人： UACJ CORPORATION
发明人： Junji Nunomura , Yukio Honkawa , Yoichi Kojima , Mikito Ueda
IPC分类号： C25C3/18
摘要： A method for producing aluminum includes: a dissolution step of dissolving a hydrate containing Al in water to prepare an aqueous solution that contains Al ions; an extraction step of bringing an organic phase that is composed of an extractant into contact with an aqueous phase that is composed of the aqueous solution to extract the Al ions in the aqueous phase into the organic phase; and an electrodeposition step of electrolyzing the organic phase as an electrolytic solution to electrodeposit metallic Al onto a surface of a cathode from the Al ions in the electrolytic solution.
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6.发明授权Method for preparing aluminum-zirconium-boron alloy and synchronously preparing crylite 有权制备铝 - 锆 - 硼合金并同步制备镁石的方法公开(公告)号：US09546098B2
公开(公告)日：2017-01-17
申请号：US14416674
申请日：2012-11-26
发明人： Xuemin Chen , Jun Yang , Zhihong Li , Weiping Wu , Shiming Wei
摘要： A method for preparing an aluminum-zirconium-boron alloy and synchronously preparing a cryolite is provided. The method includes the following steps: Step A: placing aluminum in a reactor, heating the reactor to 700-850 degrees centigrade, and adding a mixture consisting of fluorozirconate and fluoborate in a molar ratio of x: y into the reactor; Step B: stirring the reactants for 4-6 hours and extracting the upper molten liquid to obtain a cryolite, wherein the lower substance is an aluminum-zirconium-boron alloy, and aluminum is added in an excess amount. The method provided herein for preparing an aluminum-zirconium-boron alloy which is mild in reaction condition, easy to control and simple in technical flow can prepare a high-quality product through a complete reaction, besides, the use of the synchronously prepared low molecular ratio cryolites (KF.AlF3 and NaF.AlF3) in the aluminum electrolysis industry can achieve a proper electrical conductivity.
摘要翻译： 提供了制备铝 - 锆 - 硼合金并同时制备冰晶石的方法。 该方法包括以下步骤：步骤A：将铝置于反应器中，将反应器加热至700-850摄氏度，并将由氟锆酸盐和氟硼酸盐组成的混合物以x：y的摩尔比加入到反应器中; 步骤B：搅拌反应物4-6小时，提取上部熔融液体，得到冰晶石，其中低级物质为铝 - 锆 - 硼合金，并以过量的量加入铝。 本文提供的制备在反应条件温和，易于控制和工艺流程简单的铝 - 锆 - 硼合金的方法可以通过完全反应制备高品质的产品，此外，使用同步制备的低分子量 铝电解工业中的比例冰晶石（KF.AlF3和NaF.AlF3）可以实现适当的导电性。
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公开(公告)号：US20160145753A1
公开(公告)日：2016-05-26
申请号：US14902947
申请日：2013-07-09
IPC分类号： C25C3/18
CPC分类号： C25C3/18
摘要： The invention concerns non-ferrous metallurgy, in particular the composition of an electrolyte for electrically obtaining aluminum by the electrolysis of fluoride melts. The electrolyte proposed contains, in % by weight: sodium fluoride 26-43, potassium fluoride up to 12, lithium fluoride up to 5, calcium fluoride 2-6, alumina 2-6, aluminum fluoride and admixtures—the remainder. The technical result is to increase the solubility of alumina in the electrolyte at a temperature of 830-930° C. In the electrolyte being applied for, the carbon and inert electrode materials are not destroyed, and the use of special methods to purify the aluminum of melt components is not required.
摘要翻译： 本发明涉及有色冶金，特别是通过电解氟化物熔体电解获得铝的电解质的组成。 提出的电解质含有：以重量计：氟化钠26-43，氟化钾高达12，氟化锂高达5，氟化钙2-6，氧化铝2-6，氟化铝及其混合物。 技术结果是在830-930℃的温度下提高氧化铝在电解液中的溶解度。在所用的电解液中，碳和惰性电极材料不会被破坏，而采用特殊方法来净化铝 的熔体组分不需要。
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8.发明申请METHOD AND APPARATUS FOR LIQUID METAL ELECTRODE CONNECTION IN PRODUCTION OR REFINING OF METALS 审中-公开液金属电极连接在金属生产或精炼中的方法和装置公开(公告)号：US20160108532A1
公开(公告)日：2016-04-21
申请号：US14886725
申请日：2015-10-19
申请人： Infinium, Inc.
发明人： Adam Clayton POWELL, IV , Matthew EARLAM , Robert Steve TUCKER , Alton TABEREAUX , Gregory HARDIE
摘要： In some aspects, the invention relates to apparatuses and methods for connecting a liquid first metal cathode to a current source of an electrolytic cell comprising a conduit having a first and second end, liquid first metal disposed at the first end of the conduit, a solid first metal disposed at the second end of the conduit, and a solid conductor portion in electrical contact with the solid first metal.
摘要翻译： 在一些方面，本发明涉及用于将液体第一金属阴极连接到电解槽的电流源的装置和方法，包括具有第一和第二端的导管，设置在导管的第一端的液体第一金属，固体 设置在导管的第二端的第一金属和与固体第一金属电接触的实心导体部分。
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公开(公告)号：US20090114547A1
公开(公告)日：2009-05-07
申请号：US12224923
申请日：2007-02-26
摘要： A cell for the electrowinning of aluminium has a cavity for containing electrolyte (20) and one or more non emerging active anode bodies (5) that are suspended in the electrolyte. The electrolyte's surface (21,21′) has an expanse extending over the cavity and is substantially covered by a self-formed crust (25) of frozen electrolyte. The crust is mechanically reinforced by at least one preformed refractory body (30, 30′,30″). The electrolyte crust is formed against the preformed refractory body and bonded thereto so as to inhibit mechanical failure of the crust and collapse of the crust into the cavity.
摘要翻译： 用于电解提取铝的电池具有用于容纳电解质（20）的空腔和悬浮在电解质中的一个或多个不出现的活性阳极体（5）。 电解质的表面（21,21'）具有在空腔上延伸并且基本上由冷冻电解质的自形成壳体（25）覆盖的穹隆。 地壳由至少一个预成形的耐火体（30,30'，30“）机械地增强。 电解质外壳与预制的耐火材料体形成并结合在一起，以防止外壳的机械故障和外壳塌陷到空腔内。
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10.发明授权Electrocatalytically active non-carbon metal-based anodes for aluminium production cells 失效用于铝生产电池的电催化活性非碳金属基阳极
公开(公告)号：US6103090A
公开(公告)日：2000-08-15
申请号：US126114
申请日：1998-07-30
摘要： A non-carbon, metal-based high temperature resistant anode of a cell for the production of aluminium has a metal-based substrate coated with one or more electrically conductive adherent applied layers, at least one electrically conductive layer being electrochemically active. The electrochemically active layer contains one or more electrocatalysts fostering the oxidation of oxygen ions as well as fostering the formation of biatomic molecular gaseous oxygen to inhibit ionic and/or monoatomic oxygen attack of the metal-based substrate. The electrocatalyst can be iridium, palladium, platinum, rhodium, ruthenium, silicon, tin, zinc, Mischmetal oxides and metals of the Lanthanide series. The applied layer may further comprise electrochemically active constituents from oxides, oxyfluorides, phosphides, carbides, in particular spinels such as ferrites.
摘要翻译： 用于生产铝的电池的非碳金属基耐高温阳极具有涂覆有一个或多个导电粘附施加层的金属基底层，至少一个导电层是电化学活性的。 电化学活性层包含一种或多种促进氧离子氧化的电催化剂，以及促进生物原子分子气态氧的形成以抑制金属基底层的离子和/或单原子氧侵蚀。 电催化剂可以是镧系元素的铱，钯，铂，铑，钌，硅，锡，锌，稀土氧化物和金属。 施加的层还可以包含来自氧化物，氟氧化物，磷化物，碳化物，特别是尖晶石如铁氧体的电化学活性成分。
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