ADVANCED PURIFICATION CELL FOR ALUMINUM SCRAP RECYCLING

    公开(公告)号:WO2023086616A1

    公开(公告)日:2023-05-19

    申请号:PCT/US2022/049783

    申请日:2022-11-14

    申请人: ALCOA USA CORP.

    发明人: LIU, Xinghua

    摘要: The present disclosure includes a method for purifying aluminum. The method includes producing purified aluminum from an aluminum feedstock in an aluminum purification cell and flowing the purified aluminum from a cell chamber of the aluminum purification cell to a purified metal reservoir via an overflow passage, wherein the purified metal reservoir is located internal to the aluminum purification cell. In some embodiments, a feeding reservoir is located internal to the aluminum purification cell and can be accessed via a feeding port located in a refractory top cover of the cell chamber. In some embodiments, the method includes removing the purified aluminum from the purified metal reservoir via a tapping port located in a refractory top cover of the cell chamber. In some embodiments, concomitant with the removing step, the method includes restricting or preventing oxidation of the purified aluminum.

    PROTECTION DEVICE FOR ANODES OF AN ELECTROLYTIC CELL, COMPRISING MOVABLE PANELS, AND ITS IMPLEMENTATION METHOD

    公开(公告)号:WO2023073520A1

    公开(公告)日:2023-05-04

    申请号:PCT/IB2022/060142

    申请日:2022-10-21

    IPC分类号: C25C3/08 C25C3/10

    摘要: This protection device, which is adapted to be placed in front of the anodes, comprises a frame (1) and a plurality of panels (3,6) which are mounted on the frame and are adapted to be displaced with respect to this frame, so as to allow access to said anodes for an operator. According to the invention panels (3,6) comprise a first set of inner panels (3a–3d), as well as a second set of so-called outer panels (6a–6d), said panels being adapted to slide with respect to said frame (1) along a longitudinal direction (XX) of anodes line(s) so that: - in a so-called closing configuration, panels (3,6) form a substantially continuous shield (S) in front of the line of anodes; and - in a so-called access configuration, at least one panel of inner set is at least partially retracted behind at least one panel of outer set, so as to define one passage (P5) for access to at least one of the anodes which are part of said line.

    氧铝联产电解用的电极结构
    4.
    发明申请

    公开(公告)号:WO2021104166A1

    公开(公告)日:2021-06-03

    申请号:PCT/CN2020/130415

    申请日:2020-11-20

    发明人: 杨建红

    IPC分类号: C25C3/08 C25B1/02 C25B11/02

    摘要: 氧铝联产电解或无碳铝电解可润湿性阴极材料的组装,特别涉及用于所谓"惰性"或"可润湿"的氧铝联产电解用的电极结构。氧铝联产或非碳阳极铝电解槽由电解槽炉膛、阴极导电底座(7)、铝水池、高温熔盐构成,垂直非碳阳极(1)与垂直阴极(2)间隔排列,阳极(1)与阴极(2)可以持续间隔排列至所需容量为止。高温熔盐是750-950℃下,NaF-KF-CaF 2-MgF 2-LiF-AlF 3-Al 2O 3熔体。阴极(2)由TiB 2基材料构成,电芯(3)是TiB 2基、碳基或石墨基材料。阴极(2)垂直安放在阴极导电底座(7)上。阴极导电底座(7)表面采用TiB 2-C涂层、高氧化铝无定形材料浇注、SiC/Si 3N 4涂层等保护,以减少Na、K的渗透与导电底座(7)碳形成嵌层化合物造成膨胀,使基座破裂,影响阴极(2)板块的稳定和寿命。

    FLEXIBLE ELECTRICAL CONNECTORS FOR ELECTROLYTIC CELLS
    5.
    发明申请
    FLEXIBLE ELECTRICAL CONNECTORS FOR ELECTROLYTIC CELLS 审中-公开
    用于电解电池的柔性电连接器

    公开(公告)号:WO2018018158A1

    公开(公告)日:2018-02-01

    申请号:PCT/CA2017/050910

    申请日:2017-07-28

    申请人: HATCH LTD.

    摘要: A flexible electrical connector assembly is adapted to connect a bus bar of an electrolytic cell to a collector bar of the electrolytic cell. The assembly includes an electrical connector including a plurality of conductive metal sheets, the electrical connector having a collector bar end and a bus bar end. The electrical connector may be adapted for being joined, at the collector bar end, to the collector bar and, at the bus bar end, to the bus bar. The electrical connector may be adapted to implement a change in direction, at a bend along a current-carrying path between the bus bar end and the collector bar end, the bend assisting to define the change in direction as greater than 90 degrees.

    摘要翻译: 挠性电连接器组件适于将电解槽的汇流条连接到电解槽的汇流条。 该组件包括具有多个导电金属片的电连接器,该电连接器具有导电棒端部和汇流条端部。 电连接器可以适合于在汇流条端部处连接到汇流条并且在汇流条端部连接到汇流条。 电连接器可以适于在沿着汇流条端部和汇流条端部之间的载流路径的弯曲处实现方向改变,该弯曲帮助将方向改变限定为大于90度。 p>

    ELECTROLYSIS CELL AND A METHOD FOR REPAIRING SAME
    6.
    发明申请
    ELECTROLYSIS CELL AND A METHOD FOR REPAIRING SAME 审中-公开
    电解池及其修复方法

    公开(公告)号:WO2018012981A1

    公开(公告)日:2018-01-18

    申请号:PCT/NO2017/000018

    申请日:2017-06-01

    申请人: NORSK HYDRO ASA

    IPC分类号: C25C3/08 C25C3/10

    摘要: An electrolysis cell of Hall-Héroult type for producing aluminium having prebaked anodes of a carbonaceous material, and a cathode structure comprising a pot shell made out of a steel material and further having a bottom and sides supported by structural elements such as cradles and beams, wherein the cathode structure further comprises a protective and insulating lining inside the shell and a carbon based cathodic bottom with collector bars embedded therein, and where produced aluminium metal forms a layer onto said cathodic bottom, an electrolytic bath positioned above said aluminium metal where the anodes are in electrical contact with said electrolyte, wherein at least part of the steel pot shell and/or deck plates are made of a ferritic stainless steel (FSS) material. The method relates to a repair procedure for replacing parts of a commonly used carbon steel material with ferritic stainless steel material at least in parts of the steel pot shell and/or deck plates heavily exposed to corrosion and detonation. The replacement procedure can either result in a homogenous or composite material structure in affected areas.

    摘要翻译: 一种用于生产具有预焙烧碳质材料阳极的铝的Hall-H型电解槽和一种阴极结构,该阴极结构包括由钢材制成的锅壳并且还具有底部和侧面 其中阴极结构进一步包括壳体内部的保护和绝缘衬里以及其中嵌入有集电条的碳基阴极底部,并且其中所制造的铝金属在所述阴极底部上形成层, 位于所述铝金属上方的电解槽,其中阳极与所述电解质电接触,其中至少部分钢罐壳和/或甲板板由铁素体不锈钢(FSS)材料制成。 该方法涉及用铁素体不锈钢材料替代常用碳钢材料的部件的修复程序,该修复程序至少部分地处于重度暴露于腐蚀和爆炸的钢罐壳和/或甲板板中。 更换程序可以在受影响的地区产生均质或复合材料结构。

    カソード
    7.
    发明申请
    カソード 审中-公开
    阴极

    公开(公告)号:WO2017217225A1

    公开(公告)日:2017-12-21

    申请号:PCT/JP2017/019946

    申请日:2017-05-29

    IPC分类号: C25C3/08 C25C3/16 C25C7/02

    CPC分类号: C25C3/08 C25C3/16 C25C7/02

    摘要: 電気伝導性を確保しつつ、設置が容易なカソードを提供する。カソード10は、金属製錬用のカソードであって、炭素製のカソードブロック11と、各々がカソードブロック11に接するように配置された、1つ以上の炭素製のコレクターバー12とを備える。カソードブロック11の底面は、平面であり、コレクターバー12の各々の上面は、平面であり、カソードブロック11は、カソードブロック11の底面とコレクターバー12の各々の上面とが接するように配置される。

    摘要翻译:

    提供易于安装并确保导电性的阴极。 阴极10是用于金属冶炼的阴极并且包括碳阴极块11和一个或多个碳收集棒12,每个碳收集棒被布置为接触阴极块11。 阴极块11的底表面为平面,各集电条12的上表面的是一个平面,所述阴极块其中11个被布置成与每个所述基部的上表面和阴极块11的导电棒12,使得接触 。

    一种铝空气燃料电池氢氧化铝太阳能热还原装置

    公开(公告)号:WO2017211156A1

    公开(公告)日:2017-12-14

    申请号:PCT/CN2017/083575

    申请日:2017-05-09

    发明人: 金季藩

    IPC分类号: C25C3/06 C25C3/08 F24J2/00

    摘要: 一种太阳能热还原制备金属的装置,该装置包括太阳能收集光热转化系统和热还原系统,所述太阳能收集光热转化系统包括:太阳能采集装置(1)、太阳能聚集装置(2)、太阳能传输装置(3)或光热转换传输装置;所述热还原系统包括:金属还原室(15)、电场和/或磁场发生装置(15-3)、分离冷却装置(15-4)。太阳能收集光热转化系统将光或热量输送至金属还原室分解金属氧化物,分解产物在电场/磁场作用下分离,经冷却后收或液态金属。该装置还包括余热回收再利用系统。通过直接利用太阳能加热分解金属氧化物,提高了能源利用率,极大地避免了环境污染和能源浪费,具有良好的应用前景。

    ELECTRODE CONFIGURATIONS FOR ELECTROLYTIC CELLS AND RELATED METHODS
    9.
    发明申请
    ELECTRODE CONFIGURATIONS FOR ELECTROLYTIC CELLS AND RELATED METHODS 审中-公开
    电解电池的电极配置及相关方法

    公开(公告)号:WO2017165838A1

    公开(公告)日:2017-09-28

    申请号:PCT/US2017/024129

    申请日:2017-03-24

    申请人: ALCOA USA CORP.

    发明人: LIU, Xinghua

    摘要: In one embodiment, an electrolytic cell for the production of aluminum from alumina includes: at least one anode module having a plurality of anodes; at least one cathode module, opposing the anode module, wherein the at least one cathode module comprises a plurality of cathodes, wherein the plurality of anodes are suspended above the cathode module and extending downwards towards the cathode module, wherein the plurality of cathodes are positioned extending upwards towards the anode module, wherein each of the plurality of anodes and each of the plurality of cathodes are alternatingly positioned, wherein the plurality of anodes is selectively positionable in a horizontal direction relative to adjacent cathodes, wherein the anode module is selectively positionable in a vertical direction relative to the cathode module, and wherein a portion of each of the anode electrodes overlap a portion of adjacent cathodes.

    摘要翻译: 在一个实施方案中,用于由氧化铝生产铝的电解池包括:至少一个具有多个阳极的阳极模块; 至少一个阴极模块,其与所述阳极模块相对,其中所述至少一个阴极模块包括多个阴极,其中所述多个阳极悬置在所述阴极模块上方并向下朝向所述阴极模块延伸,其中所述多个阴极被定位 向上朝阳极模块延伸,其中所述多个阳极中的每一个和所述多个阴极中的每一个交替地定位,其中所述多个阳极相对于相邻阴极在水平方向上选择性地定位,其中所述阳极模块可选择性地定位在 相对于阴极模块的垂直方向,并且其中每个阳极电极的一部分与相邻阴极的一部分重叠。

    СПОСОБ ФУТЕРОВКИ КАТОДНОГО УСТРОЙСТВА ЭЛЕКТРОЛИЗЕРА ДЛЯ ПОЛУЧЕНИЯ ПЕРВИЧНОГО АЛЮМИНИЯ (ВАРИАНТЫ)

    公开(公告)号:WO2017018911A1

    公开(公告)日:2017-02-02

    申请号:PCT/RU2016/000422

    申请日:2016-07-07

    IPC分类号: C25C3/08

    CPC分类号: C25C3/08

    摘要: Изобретение относится к области цветной металлургии, в частности, к технологическому оборудованию для производства первичного алюминия электролизом, а именно, к способам футеровки катодных устройства электролизеров. Способ футеровки катодного устройства электролизера для получения алюминия включает засыпку теплоизоляционного слоя в кожух катодного устройства, формирование огнеупорного слоя с последующим уплотнением слоев, установку подовых и бортовых блоков с последующей заделкой швов между ними холоднонабивной подовой массой. Согласно заявленному изобретению по первому варианту, между теплоизоляционным и огнеупорным слоями устанавливают упругий элемент из плотного органического вещества. Согласно заявленному изобретению по второму варианту, между теплоизоляционным и огнеупорным слоями устанавливают гибкую графитовую фольгу, а снизу гибкой графитовой фольги устанавливают упругий элемент из плотного органического вещества. Предлагаемые варианты способов футеровки катодного устройства электролизера для получения первичного алюминия позволяют сократить энергозатраты при работе электролизера за счет улучшения стабилизации теплофизических свойств теплоизоляции в цоколе, увеличить срок службы электролизеров.

    摘要翻译: 本发明涉及有色冶金领域,更具体地说涉及通过电解生产原铝的技术设备,更具体地说,涉及电解槽阴极组件衬里的方法。 用于生产铝的电解槽的阴极组件的衬里的现有方法包括将绝热层填充到阴极组件的壳体中,形成耐火层,然后压实层,安装炉床块和侧块,然后密封 他们之间的关节使用冷捣炉底糊。 根据本发明的第一变型,在绝热层和耐火层之间布置由致密有机物质制成的弹性构件。 根据本发明的第二变型,在绝热层和耐火层之间设置柔性碳箔,并且在柔性碳箔的下面配置由致密有机物构成的弹性体。 用于制造用于生产原铝的电解槽的阴极组件的衬里的方法的提出的变型使得当电解槽运行时可以减少能量消耗,这是由于基底上的热绝缘的热性能的稳定性得到改善 ,并延长电解槽的使用寿命。