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1. 发明授权

US06402927B1 Distribution of alumina-rich electrolyte in aluminum electrowinning cells 失效
标题翻译：铝电解池中氧化铝富集电解液的分布
公开(公告)号：US06402927B1
公开(公告)日：2002-06-11
申请号：US09636661
申请日：2000-08-11
申请人： Jean-Jacques Duruz , Vittorio Bello
发明人： Jean-Jacques Duruz , Vittorio Bello
IPC分类号： C25C306
CPC分类号： C25C3/06
摘要： The invention relates to a method of producing aluminum in an electrolytic cell, particularly in a drained cell, such cell comprising a cathode (20) and facing anodes (10), each anode (10) being spaced apart in its operative position from the cathode (20) by an anode-cathode reduced distance defining an anode-cathode gap containing the bath being electrolyzed. The method comprises: feeding alumina into the electrolyte where it is dissolved; electrolyzing an alumina-rich bath in the anode-cathode gap; and periodically moving at least one anode (10) in order to intake rich-alumina electrolyte into the anode-cathode gap thereby distributing alumina-rich electrolyte under the entire anode surface.
摘要翻译：本发明涉及一种在电解槽中产生铝的方法，特别是在排水池中，该电池包括阴极和面对的阳极（10），每个阳极（10）的工作位置与阴极间隔开（20）通过阳极 - 阴极减少的距离限定阳极 - 阴极间隙，其包含正被电解的浴。该方法包括：将氧化铝供入溶解的电解液中; 在阳极 - 阴极间隙中电解富铝浴; 并且周期性地移动至少一个阳极（10），以便将富铝氧化铝电解质吸入阳极 - 阴极间隙，从而在整个阳极表面下分布富含氧化铝的电解质。

2. 发明授权

US5486278A Treating prebaked carbon components for aluminum production, the treated components thereof, and the components use in an electrolytic cell 失效
标题翻译：处理用于铝生产的预烘烤碳组分，其处理组分，以及组分用于电解槽中
公开(公告)号：US5486278A
公开(公告)日：1996-01-23
申请号：US218679
申请日：1994-03-28
申请人： Fausto Manganiello , Jean-Jacques Duruz , Vittorio Bello
发明人： Fausto Manganiello , Jean-Jacques Duruz , Vittorio Bello
IPC分类号： C04B41/50 , C04B41/52 , C25C3/08 , C25C3/12 , C25C7/00
CPC分类号： C04B41/52 , C04B41/5006 , C25C3/08 , C25C3/125
摘要： A prebaked carbon-based anode of an electrolytic cell for the production of aluminium, in particular by the electrolysis of alumina in a molten fluoride electrolyte, is treated over its sides and top to improve the resistance thereof to erosion during operation of the cell by oxidising gases released at the anode, by immersing the anode in a boron-containing solution containing 5-60 weight % of H.sub.3 BO.sub.3 or B.sub.2 O.sub.3 in methanol, ethylene glycol, glycerin or water with a surface-active agent, e.g. at 80.degree. to 120.degree. C. After 2-60 minutes immersion, the boron-containing solution is impregnated to a depth of 1-10 cm, usually about 2-4 cm over the top and side surfaces of the anode to be protected, producing a concentration of boron in the impregnated surface from 200 ppm to 0.35%. The same treatment can be applied to cell sidewalls.
摘要翻译：用于生产铝的电解池的预焙碳基阳极，特别是通过在熔融氟化物电解质中电解氧化铝，在其侧面和顶部进行处理，以提高电池在氧化过程中的侵蚀性通过将阳极浸入含有5-60重量％的H 3 BO 3或B 2 O 3的甲醇，乙二醇，甘油或水中的含硼溶液中，通过将表面活性剂例如在80℃至120℃下浸渍2-60分钟后，将硼含量溶液浸渍至要保护的阳极的顶表面和侧表面上1-10cm的深度，通常约2-4cm，将浸渍表面中的硼浓度从200ppm提高到0.35％。相同的处理可以应用于细胞侧壁。

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