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公开(公告)号：US11746431B2
公开(公告)日：2023-09-05
申请号：US16489669
申请日：2018-02-20
摘要： The design of a metal inert anode is proposed, it is made in the form of a perforated structure with through-openings, in particular formed by longitudinal and transverse anode elements intersecting each other and limited by the lateral sides of the intersecting anode elements, and contains vertical or inclined fins that protrude from the bath and are integrated with the anode elements or a current conductor. As a result, it ensures a reduction in the voltage drop in the anode and in the bubble layer under the anode, a reduction in the anode overvoltage and anode consumption, an increase in current efficiency and the reliability of the cryolite-alumina crust, which leads to an increase in the anode service life and promotes the formation of a reliable and durable cryolite-alumina crust above the melt surface, which improves process efficiency.
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公开(公告)号：US11634829B2
公开(公告)日：2023-04-25
申请号：US16478469
申请日：2016-11-24
摘要： The invention relates to production of alloys based on aluminum. A method is proposed for producing aluminum-based alloys by electrolysis, according to which low-consumable anode of aluminum pot is used as a source of alloying elements. At the same time, in order to optimize master alloy consumption, one of the following options is chosen: dissolution of alloying elements from slightly soluble anodes; adding oxides and/or fluorides and/or carbonates of alloying elements to electrolyte melt of aluminum pot; simultaneous dissolution of alloying elements from slightly soluble anodes with addition of oxides and/or fluorides and/or carbonates of alloying elements to electrolyte melt of aluminum pot. The method comprises the following stages: introducing alloying elements into molten cathode aluminum by dissolving them in electrolyte melt of aluminum pot from low-consumable anode and/or by adding oxides/and fluorides and/or carbonates of alloying elements into electrolyte melt of aluminum pot; reduction of alloying elements introduced into electrolyte melt of aluminum pot on molten cathode aluminum to form the base for aluminum alloys; determining percentage of elements in the base for aluminum alloys; and bringing alloys to a given composition by adding alloying elements to the base for aluminum alloys in the required amount. The result is multicomponent aluminum alloys of a given composition with introduction of alloying admixtures in the process of aluminum production by electrolysis, and then the alloy is brought to a predetermined composition, providing simplification of technology and control, reducing master alloy consumption which leads to lower cost of aluminum alloy production.
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公开(公告)号：US11180862B2
公开(公告)日：2021-11-23
申请号：US16316234
申请日：2017-07-07
发明人： Xinghua Liu
摘要： In some embodiments, an electrolytic cell includes: an one anode module having a plurality of anodes; a one cathode module, opposing the anode module, and comprising a plurality of vertical cathodes, wherein each of the plurality of anodes and each of the plurality of vertical cathodes are vertically oriented and spaced one from another; a cell reservoir; and a cell bottom supporting the cathode module, wherein the cell bottom comprise an first upper surface, a second upper surface, and a channel, wherein the plurality of vertical cathodes extends upward from the upper surfaces, wherein at least one cathode block is located below the plurality of vertical cathodes, wherein the first upper surface and the second upper surface are configured to direct substantially all of the liquid aluminum produced in the electrolytic cell to the channel, and wherein the channel is configured to receive liquid aluminum from the upper surfaces.
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公开(公告)号：US20210285113A1
公开(公告)日：2021-09-16
申请号：US17255698
申请日：2019-06-24
发明人： Bernhard Schmid , Günter Schmid , Christian Reller , Dan Taroata
IPC分类号： C25B1/27 , C25B11/031 , C25B1/50 , C25B15/08 , C25B9/19 , C25C1/02 , C25C3/02 , C25C3/04 , C25C3/06 , C25C7/00 , C01B21/06 , C01B21/072
摘要： A process for producing ammonia and an apparatus for producing ammonia are disclosed herein. The process includes: the electrolytic production of a metal at a cathode of an electrolysis cell, wherein the metal is selected from Li, Mg, Ca, Sr, Ba, Zn, Al and/or alloys and/or mixtures thereof; production of a nitride of the metal M by reaction of the electrolytically produced metal with a gas including nitrogen; introduction of the nitride of the metal M into the electrolysis cell (e.g., into an anode chamber of the electrolysis cell); and reaction of the nitride of the metal M at an anode of the electrolysis cell to produce ammonia.
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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：US10066310B2
公开(公告)日：2018-09-04
申请号：US15050050
申请日：2016-02-22
申请人： ALCOA USA CORP.
发明人： Xiangwen Wang , Robert Hosler , Gary Tarcy
摘要： System, method and apparatus for measuring electrolysis cell operating conditions and communicating the same are disclosed. The system includes a selectively positionable member coupled to an analytical apparatus, wherein the selectively positionable is configured to move the analytical apparatus into and out of physical communication with a bath. The system may also include a crust breaker for breaking the surface of a bath and an electronic device for measuring bath level.
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公开(公告)号：US09705168B2
公开(公告)日：2017-07-11
申请号：US13907110
申请日：2013-05-31
发明人： Günter Schmid
IPC分类号： C25C3/02 , C25C3/04 , C25C3/06 , C25C3/34 , H01M14/00 , C05C1/00 , C05C3/00 , H01M4/38 , H01M6/02 , C22B26/12
CPC分类号： H01M14/00 , C05C1/00 , C05C3/00 , C22B26/12 , C25C3/02 , C25C3/04 , C25C3/06 , C25C3/34 , H01M4/38 , H01M4/381 , H01M4/382 , H01M6/02 , Y02P20/133 , Y02P20/134
摘要： A mobile energy carrier with which energy in the form of materials from zones distributed widely throughout the world, for example with a large amount of solar energy, wind energy or other CO2-neutral energy, for example the equator, can be transported to zones where there is a high energy requirement, for example Europe.
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公开(公告)号：US09678502B2
公开(公告)日：2017-06-13
申请号：US14254480
申请日：2014-04-16
发明人： Mark P. Taylor , John J. J. Chen
IPC分类号： G05B19/418 , G05B11/01 , C25C3/06 , C25C3/20 , G05B23/02
CPC分类号： G05B19/41835 , C25C3/06 , C25C3/20 , G05B11/01 , G05B23/0294 , G05B2219/31455 , G05B2219/32009
摘要： A system 10 for controlling an industrial plant 12 comprises automatic control equipment 14 comprising a plurality of measurement sensors 16 for sensing predetermined variables associated with components of the industrial plant 12. The sensors 16 generate measured data relating to operation of the components of the industrial plant 12. A database 20 contains operational data, including observational data, regarding the industrial plant 12. A processor 18 is in communication with the automatic control equipment 14 and the database 20 for receiving the measured data from the sensors 16 of the automatic control equipment 14 and the operational data from the database 20. The processor 18 manipulates the measured and operational data to provide an evolving description of a process condition of each component over time, along with output information relating to operational control of the industrial plant 12 and for updating the database 20.
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9.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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10.发明授权Control of temperature and operation of inert electrodes during production of aluminum metal 有权在生产铝金属时控制惰性电极的温度和操作公开(公告)号：US09217204B2
公开(公告)日：2015-12-22
申请号：US10524855
申请日：2003-08-15
申请人： Ole-Jacob Siljan , Stein Julsrud
发明人： Ole-Jacob Siljan , Stein Julsrud
摘要： The present invention relates to methods for operating and controlling the temperature of inert electrodes during production of molten aluminum by electrolysis of an aluminous ore, preferably alumina, dissolved in molten salts, preferably a fluoride based electrolyte, in an electrolysis cell with vertical or essentially vertical electrode configuration.The invention describes methods of designing and operating inert electrodes in a vertical and/or inclined position for production of aluminum metal, where said electrodes have an operating temperature that may deviate from the electrolyte temperature, thereby controlling the dissolution of electrode materials and preventing solid deposit formation on the electrodes. The present invention is also applicable to aluminum production cells utilizing inert electrodes in a horizontal configuration, and traditional Hall-Hèroult cells retrofitted with inert anodes.
摘要翻译： 本发明涉及通过在垂直或基本垂直的电解池中电解溶解在熔融盐（优选氟化物基电解质）中的铝矿，优选氧化铝，来操作和控制生产熔融铝期间惰性电极的温度的方法 电极配置。 本发明描述了在用于生产铝金属的垂直和/或倾斜位置中设计和操作惰性电极的方法，其中所述电极具有可能偏离电解质温度的操作温度，从而控制电极材料的溶解并防止固体沉积 在电极上形成。 本发明也适用于利用水平构型的惰性电极的铝生产电池，以及用惰性阳极改装的传统霍尔赫氏电池。
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