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公开(公告)号：US10344390B2
公开(公告)日：2019-07-09
申请号：US14911099
申请日：2014-07-30
摘要： This aluminum smelter comprises a row of cells (50) arranged transversely in relation to the length of the row, the cells (50) individually comprising an anode (52), rising and connecting electrical conductors (54) running upwards along the two opposite longitudinal edges of the cell (50) to route the electrolysis current towards the anode (52), and a cathode (56) through which pass cathode conductors (55) connected to cathode outputs connected to linking conductors to route the electrolysis current to the rising and connecting electrical conductors of the next cell (50). Furthermore the aluminum smelter comprises a compensating electrical circuit separate from the electrical circuit through which the electrolysis current flows, running beneath the cells (50), through which a compensating current may flow beneath the cells (50) in a direction opposite to the overall direction of flow of the electrolysis current.
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公开(公告)号：US09758883B2
公开(公告)日：2017-09-12
申请号：US15145119
申请日：2016-05-03
IPC分类号： C25C3/22 , C25C7/06 , C25C3/06 , F27B14/08 , F27D17/00 , F28D7/16 , F16L53/00 , C25C3/24 , F28D21/00 , F28F9/02 , F28F13/08 , F28F19/00
CPC分类号： C25C3/22 , C25C3/06 , C25C3/24 , C25C7/06 , F16L53/00 , F27B14/08 , F27D17/001 , F27D17/002 , F27D17/004 , F28D7/1615 , F28D7/1653 , F28D21/0003 , F28F9/0282 , F28F13/08 , F28F19/00 , Y02P10/262 , Y10T137/6416
摘要： A raw gas collection system for collecting raw gas from a plurality of aluminium smelting pots is equipped with a plurality of branch ducts, each of which is arranged to channel a respective branch flow of raw gas from an aluminium smelting pot to a collection duct, which is common to and shared by the branch ducts. Each of said branch ducts is, near an outlet thereof, equipped with a curved section for aligning the branch flow with a flow direction of raw gas already present in the common collection duct, and a constriction for accelerating the branch flow through the branch duct outlet into the common collection duct. Furthermore, each of said branch ducts is equipped with a heat exchanger for removing heat from the respective branch flow of raw gas. The combined flow resistance of the constriction and the heat exchanger reduces the need for adjusting the respective branch flows using dampers, thereby reducing the power required to transport the raw gas.
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3.发明申请DIRECT-CURRENT SHUNT PREHEATING START METHOD FOR AN INERT ELECTRODE ALUMINUM ELECTROLYSIS CELL 有权直接电流分流预热开关方法，用于电极铝电解槽公开(公告)号：US20150136612A1
公开(公告)日：2015-05-21
申请号：US14400305
申请日：2012-12-26
发明人： Jianhong Yang , Shengzhong Bao , Peng Cao , Xinping Tang
IPC分类号： C25C3/24
摘要： The invention discloses a direct-current shunt preheating start method for an inert electrode aluminum electrolysis cell, comprising: (1) forming multiple groups of direct-current shunt elements by using conductors with preset resistance values and geometric sizes; (2) laying in a hearth of the electrolysis cell electrical heating element groups of the same number as/a different number from electrode groups; (3) drying the hearth, smelting electrolyte and establishing a thermal balance and a hearth inner profile by using the electrical heating element groups according to a set heating curve or set steps; (4) changing the number of groups/a series or parallel connection state of the direct-current shunt elements; and (5) gradually replacing inert electrodes and gradually adjusting the number of the groups of/the series or parallel connection state of the shunt elements. By means of the present invention, the inert electrode aluminum electrolysis cell can be well preheated and the thermal balance can be established; in the inert electrode replacement process, stability of the cell voltage can further be ensured, so that the current passing through the inert electrodes in the cell is uniform; and series current is not affected by start of a single electrolysis cell, so that non-disturbance start is implemented.
摘要翻译： 本发明公开了一种用于惰性电极铝电解槽的直流并联预热启动方法，包括：（1）通过使用具有预设电阻值和几何尺寸的导体形成多组直流并联元件; （2）在与电极组相同数量的不同数量的电解槽电加热元件组的炉膛中放置; （3）根据设定的加热曲线或设定步骤，通过使用电加热元件组干燥炉床，熔融电解质并建立热平衡和炉内部轮廓; （4）改变直流分流元件的组数/串联或并联状态; 和（5）逐渐地替代惰性电极并逐渐调整分流元件的串联/并联连接状态的数量。 通过本发明，可以对惰性电极铝电解槽进行良好的预热和建立热平衡; 在惰性电极更换过程中，可以进一步确保电池电压的稳定性，使得通过电池中的惰性电极的电流是均匀的; 并且串联电流不受单个电解槽的启动的影响，从而实现非干扰启动。
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公开(公告)号：US5304297A
公开(公告)日：1994-04-19
申请号：US23653
申请日：1993-02-26
IPC分类号： C25C3/24 , B23K1/20 , B23K35/38 , C23C18/16 , C23G1/36 , C25C1/00 , C25C1/14 , C25C3/36 , C25D21/18 , C25D5/02 , C25D17/00
CPC分类号： B23K1/206 , B23K35/38 , C23C18/1617 , C23G1/36 , C25D21/18 , B23K2201/42
摘要： A system is provided for regenerating reducing agents used in ancillary chemical or electrochemical processes such as restoring solderability of electronic components. The system includes a cathode, an anode, and an electrolyte system that is separated by a semipermeable ionic barrier into a catholyte and an anolyte. The catholyte includes the reduced member of a redox couple, which can be regenerated electrochemically. The redox couple of the electrolyte system is charged like a battery and discharged during the ancillary process. Regeneration of the reduced member of the redox couple is accomplished at the cathode. The cathode comprises an electrode having a high hydrogen overvoltage so that sufficiently negative potentials can be attained while minimizing hydrogen evolution. Chemical balance is maintained by the semipermeable ionic barrier, which permits proton migration from the anolyte to the catholyte but acts as a barrier against diffusion and migration of cations from the catholyte to the anolyte. Ideally, the anodic reaction is breakdown of water to form oxygen, which is vented, and protons that migrate across the ionic barrier to the catholyte replacing protons consumed in the ancillary process. The overall reaction in a system for restoring solderability of electronic components is reduction of metallic oxide to metal and release of oxygen, with no net chemical change in the composition of the regeneration system.
摘要翻译： 提供了用于再生用于辅助化学或电化学过程中的还原剂的系统，例如恢复电子部件的可焊性。 该系统包括阴极，阳极和电解质系统，其由半透性离子屏障分离成阴极电解液和阳极电解液。 阴极电解质包括氧化还原对的还原成员，其可以电化学地再生。 电解液系统的氧化还原电极像电池一样充电并在辅助过程中放电。 在阴极处实现氧化还原对的还原成员的再生。 阴极包括具有高氢过电压的电极，使得可以在使氢析出最小化的同时实现足够的负电位。 化学平衡通过半透性离子屏障保持，这允许质子从阳极电解液迁移到阴极电解液，但是作为阻止阳离子从阴极电解液到阳极电解液的扩散和迁移的屏障。 理想地，阳极反应是水的分解以形成被排出的氧，以及迁移穿过离子屏障到阴极电解液的质子代替在辅助过程中消耗的质子。 用于恢复电子部件的可焊性的系统中的总体反应是将金属氧化物还原为金属和释放氧，而在再生系统的组成中没有净化学变化。
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公开(公告)号：US4687564A
公开(公告)日：1987-08-18
申请号：US736575
申请日：1985-05-21
申请人： Milton Blander , Glenn M. Cook
发明人： Milton Blander , Glenn M. Cook
CPC分类号： C21B13/0006 , C21B13/12 , C21C5/56 , Y02P10/138
摘要： Apparatus for processing a metallic fluid containing iron oxide, container for a molten metal including an electrically conductive refractory disposed for contact with the molten metal which contains iron oxide, an electrolyte in the form of a basic slag on top of the molten metal, an electrode in the container in contcat with the slag electrically separated from the refractory, and means for establishing a voltage across the refractory and the electrode to reduce iron oxide to iron at the surface of the refractory in contact with the iron oxide containing fluid. A process is disclosed for refining an iron product containing not more than about 10% by weight oxygen and not more than about 10% by weight sulfur, comprising providing an electrolyte of a slag containing one or more of calcium oxide, magnesium oxide, silica or alumina, providing a cathode of the iron product in contact with the electrolyte, providing an anode in contact with the electrolyte electrically separated from the cathode, and operating an electrochemical cell formed by the anode, the cathode and the electrolyte to separate oxygen or sulfur present in the iron product therefrom.
摘要翻译： 用于处理含有氧化铁的金属流体的装置，用于熔融金属的容器，包括用于与含有氧化铁的熔融金属接触的导电耐火材料，熔融金属顶部的碱性渣的形式的电解液， 在与耐火材料电分离的炉渣的容器中，以及用于在耐火材料和电极两端建立电压的装置，以在与含氧化铁的流体接触的位置处将耐火材料表面的氧化铁还原成铁。 公开了一种用于精制含有不超过约10重量％的氧和不超过约10重量％的硫的铁产物的方法，其包括提供含有一种或多种氧化钙，氧化镁，二氧化硅或 氧化铝，提供与电解质接触的铁产物的阴极，提供与电解质与阴极电隔离的阳极，并操作由阳极，阴极和电解质形成的电化学电池，以分离存在的氧或硫 在铁产品中。
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公开(公告)号：US4568430A
公开(公告)日：1986-02-04
申请号：US697964
申请日：1985-02-04
申请人： Sylvestre Vire
发明人： Sylvestre Vire
CPC分类号： C22B21/0092 , C22B21/066 , Y02P10/218
摘要： A salt melt of alkali and/or alkali earth chlorides and fluorides, heated to 50.degree.-100.degree. C. above the melting point is employed to purify heavily contaminated scrap aluminum. The scrap aluminum, preheated to 400.degree.-500.degree. C. is added to a melting or holding furnace containing the less dense salt melt, the mixture stirred if necessary and then held at the above mentioned melt temperature for at least one hour. First the sedimented metal phase, then the salt melt are filtered through a resistant open pore ceramic filter and thus freed of solid impurities. The aluminum is transferred to an electrolytic cell for purification, and the molten salt melt recycled.
摘要翻译： 使用碱和/或碱土类氯化物和氟化物的盐溶液，加热到高于熔点的50℃-100℃，以净化严重污染的废铝。 将预热至400-500℃的废铝加入到含有较不致密的盐熔体的熔化或保温炉中，如果需要，将混合物搅拌，然后保持在上述熔融温度下至少1小时。 首先沉淀金属相，然后通过耐开孔陶瓷过滤器过滤盐溶液，从而消除固体杂质。 将铝转移到电解池中进行纯化，并将熔融盐熔融再循环。
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公开(公告)号：US4338177A
公开(公告)日：1982-07-06
申请号：US62135
申请日：1979-07-30
申请人： James C. Withers , Gary V. Upperman
发明人： James C. Withers , Gary V. Upperman
摘要： A cell for the electrolytic deposition of aluminum at low temperatures and low electrical potential in which the anode is the sole source of aluminum and comprises a composite mixture of an aluminous material such as aluminum oxide and a reducing agent. Conductor means of higher electrical conductivity than the mixture are provided to conduct substantially the entire anodic current to the active anode surface thereby reducing the voltage drop through the highly resistive composite mixture. The mixture may be employed in a self-baking mode or be prebaked. Alternatively, the mixture may be in a particulate form and contained within a porous membrane which passes the electrolyte or other dissolved material while withholding undissolved impurities. The cell may have bipolar electrodes and may be used in combined winning and refining configurations.
摘要翻译： 用于在低温和低电位下电解铝的电池，其中阳极是唯一的铝源，并且包括铝材料如氧化铝和还原剂的复合混合物。 提供比提供混合物更高的电导率的导体装置，以将基本上整个阳极电流传导到活性阳极表面，从而降低通过高电阻复合材料混合物的电压降。 混合物可以以自烘烤模式使用或预烘烤。 或者，混合物可以是颗粒形式并且包含在通过电解质或其它溶解的材料同时保持未溶解的杂质的多孔膜中。 电池可以具有双极电极，并且可以以组合的获胜和精炼配置使用。
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