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1. 发明申请

US20070187232A1 Non-carbon anodes with active coatings 有权
标题翻译：具有活性涂层的非碳阳极
公开(公告)号：US20070187232A1
公开(公告)日：2007-08-16
申请号：US10591636
申请日：2005-03-18
申请人： Vittorio De Nora , Thinh Nguyen
发明人： Vittorio De Nora , Thinh Nguyen
IPC分类号： C25C7/02
CPC分类号： C25C3/18 , C25C3/08 , C25C3/12
摘要： An anode for electrowinning aluminium comprises an electrically conductive substrate that is covered with an applied electrochemically active coating comprising a layer that contains predominantly cobalt oxide CoO. The CoO layer can be connected to the substrate through an oxygen barrier layer, in particular containing copper, nickel, tungsten, molybdenum, tantalum and/or niobium.
摘要翻译：用于电解提取铝的阳极包括用包含主要包含钴氧化物CoO的层的施加的电化学活性涂层覆盖的导电基底。 CoO层可以通过氧阻隔层，特别是含有铜，镍，钨，钼，钽和/或铌而连接到衬底。

2. 发明申请

US20070144617A1 Non-carbon anodes 有权
标题翻译：非碳阳极
公开(公告)号：US20070144617A1
公开(公告)日：2007-06-28
申请号：US10591634
申请日：2005-03-18
申请人： Vittorio De Nora , Thinh Nguyen
发明人： Vittorio De Nora , Thinh Nguyen
IPC分类号： C25C3/12
CPC分类号： C25C3/12 , C25C3/08 , C25C3/18
摘要： An anode for electrowinning of aluminium from alumina comprises a cobalt-containing metallic outer part that is covered with an integral oxide layer containing predominantly cobalt oxide CoO. The integral oxide layer can be formed by surface oxidation of cobalt from the metallic outer part before use.
摘要翻译：用于从氧化铝电解提取铝的阳极包括用主要包含氧化钴CoO的整体氧化物层覆盖的含钴金属外部部分。整体氧化物层可以在使用前由金属外部部分的钴表面氧化形成。

3. 发明申请

US20060011490A1 Protection of non-carbon anodes and other oxidation resistant components with iron oxide-containing coatings 失效
标题翻译：用含氧化铁的涂层保护非碳阳极和其他耐氧化组分
公开(公告)号：US20060011490A1
公开(公告)日：2006-01-19
申请号：US10526913
申请日：2003-09-09
申请人： Thinh Nguyen , Vittorio De Nora
发明人： Thinh Nguyen , Vittorio De Nora
IPC分类号： C25C3/06 , B05D5/12
CPC分类号： C25C7/005 , C25C3/08 , C25C3/12 , C25C7/025
摘要： A method of forming a dense and crack-free hematite-containing protective layer on a metal-based substrate for use in a high temperature oxidising and/or corrosive environment comprises applying onto the substrate a particle mixture consisting of: 60 to 99 95 weight %, in particular 70 to 95 weight % such as 75 to 85 weight %, of hematite with or without iron metal and/or ferrous oxide; 1 to 25 weight %, in particular 5 8 to 20 weight % such as 8 to 15 weight %, of nitride and/or carbide particles, such as boron nitride, aluminium nitride or zirconium carbide particles; and 0 to 15 weight %, in particular 5 to 15 weight %, of one or more further constituents that consist of at least one metal or metal oxide or a heat-convertible precursor thereof. The hematite particles are then sintered by heat treating the particle mixture to form the protective layer that is made of a microporous sintered hematite matrix in which the nitride and/or carbide particles are embedded and which contains, when present, said one or more further constituents. The mechanical, electrical and electrochemical properties of the protective layer can be improved by using an oxide of titanium, zinc, zirconium or copper. Typically, the protected substrate can be used in a cell for the electrowinning of a metal such as aluminium.
摘要翻译：在用于高温氧化和/或腐蚀性环境的金属基底上形成致密且无裂纹的含赤铁矿保护层的方法包括将由以下物质组成的颗粒混合物施加到基底上：60至99重量％，特别是具有或不含铁金属和/或氧化亚铁的赤铁矿的70〜95重量％，例如75〜85重量％ 1至25重量％，特别是5 8至20重量％，例如8至15重量％的氮化物和/或碳化物颗粒，例如氮化硼，氮化铝或碳化锆颗粒; 和0至15重量％，特别是5至15重量％的由至少一种金属或金属氧化物或其可热转化的前体组成的一种或多种另外的组分。然后通过热处理颗粒混合物来形成赤铁矿颗粒以形成由微孔烧结的赤铁矿基质制成的保护层，其中氮化物和/或碳化物颗粒被嵌入，并且当存在所述一种或多种其它成分时。可以通过使用钛，锌，锆或铜的氧化物来改善保护层的机械，电学和电化学性质。通常，受保护的基底可用于电解池中金属如铝的电解提取。

4. 发明申请

US20050205431A1 Surface oxidised nickel-iron metal anodes for aluminium production 失效
标题翻译：用于铝生产的表面氧化镍 - 铁金属阳极
公开(公告)号：US20050205431A1
公开(公告)日：2005-09-22
申请号：US10506146
申请日：2003-03-12
申请人： Thinh Nguyen , Vittorio De Nora
发明人： Thinh Nguyen , Vittorio De Nora
IPC分类号： C25C3/12 , C25C3/06
CPC分类号： C25C3/12
摘要： An anode for the electrowinning of aluminium by the electrolysis of alumina in a molten fluoride electrolyte has an electrochemically active integral outside oxide layer obtainable by surface oxidation of a metal alloy which consists of 20 to 60 weight % nickel; 5 to 15 weight % copper; 1.5 to 5 weight % aluminium; 0 to 2 weight % in total of one or more rare earth metals, in particular yttrium; 0 to 2 weight % of further elements, in particular manganese, silicon and carbon; and the balance being iron. The metal alloy of the anode has a copper/nickel weight ratio in the range of 0.1 to 0.5, preferably 0.2 to 0.3.
摘要翻译：用于通过在熔融氟化物电解液中电解氧化铝来电解电解铝的阳极具有电化学活性的整体外部氧化物层，其通过由20至60重量％的镍组成的金属合金的表面氧化而获得; 5至15重量％铜; 1.5至5重量％铝; 一个或多个稀土金属，特别是钇的总和为0至2重量％; 0至2重量％的其它元素，特别是锰，硅和碳; 余量为铁。阳极的金属合金的铜/镍重量比为0.1〜0.5，优选为0.2〜0.3。

5. 发明申请

US20060289300A1 Aluminium-wettable carbon-based body 审中-公开
标题翻译：铝可湿性碳基体
公开(公告)号：US20060289300A1
公开(公告)日：2006-12-28
申请号：US10553342
申请日：2004-04-15
申请人： Thinh Nguyen , Vittorio De Nora
发明人： Thinh Nguyen , Vittorio De Nora
IPC分类号： C25C7/00
CPC分类号： C25C3/125 , C04B35/52 , C04B35/522 , C04B41/009 , C04B41/52 , C04B41/90 , C04B2111/00879 , C04B2235/3217 , C04B2235/3262 , C04B2235/327 , C04B2235/3272 , C04B2235/3275 , C04B2235/3279 , C04B2235/3281 , C04B2235/402 , C04B2235/404 , C04B2235/422 , C04B2235/425 , C04B2235/48 , C04B2235/75 , C04B2235/80 , C04B2235/9676 , C25C3/08 , C04B41/0072 , C04B41/4535 , C04B41/5009 , C04B41/5072 , C04B41/522 , C04B41/4523 , C04B41/5155
摘要： A carbon body has an aluminium-wettable outer part that is made of a carbon-rich mixture containing aluminium-reactable metal-based particles and carbon. The metal-based particles are made of metal oxide particles and/or partly oxidised metal particles. The metal of the metalbased particles is selected from iron, copper, cobalt, nickel, zinc and manganese. The carbon body can be used in an aluminium electrowinning cell, e.g. as a cathode, or in an apparatus for treating molten aluminium and is wetted by molten aluminium during use.
摘要翻译：碳体具有铝可湿性外部部分，其由含铝可反应的金属基颗粒和碳的富含碳的混合物制成。金属基颗粒由金属氧化物颗粒和/或部分氧化的金属颗粒制成。金属基质颗粒的金属选自铁，铜，钴，镍，锌和锰。碳体可以用于铝电解池中，例如，或用于处理熔融铝的设备，并在使用过程中被熔融铝润湿。

6. 发明申请

US20060185984A1 Metal electrowinning cell with electrolyte purifier 有权
标题翻译：金属电解电池与电解液净化器
公开(公告)号：US20060185984A1
公开(公告)日：2006-08-24
申请号：US10565524
申请日：2004-08-10
申请人： Thinh Nguyen , Frank Schnyder , Vittorio De Nora
发明人： Thinh Nguyen , Frank Schnyder , Vittorio De Nora
IPC分类号： C25C3/08
CPC分类号： C25C3/00 , C25C3/06 , C25C3/08 , C25C7/005
摘要： A cell for electrowinning a metal, in particular aluminium, from a compound thereof dissolved in an electrolyte (30) comprises an anode (40) and a cathode (10,11) that contact the electrolyte (30), the cathode (10,11) being during use at a cathodic potential for reducing thereon species of the metal to be produced from the dissolved compound. The electrolyte (30) further contains species of at least one element that is liable to contaminate the product metal (20) and that has a cathodic reduction potential which is less negative than the cathodic potential of the metal to be produced. The cell further comprises a collector (50) for removing species of such element (s) from the electrolyte (30). During use the collector (50) is at a potential that is: less negative than the cathodic potential of the produced metal (20) to inhibit reduction thereon of species of the metal to be produced; and at or more negative than the reduction potential of the species of said element(s) to allow reduction thereof on the collector (50). The cell is so arranged that species of said element(s) are reduced on the collector (50) rather than on the cathode (10,11) so as to inhibit contamination of the product metal (20) by said element(s).
摘要翻译：用于从溶解在电解质（30）中的化合物电解金属（特别是铝）的电池包括与电解质（30）接触的阳极（40）和阴极（10,11），阴极（10,11 ）在阴极电位的使用期间，以从其中减少由溶解的化合物产生的金属的种类。电解质（30）还含有易于污染产物金属（20）的至少一种元素的物质，并且具有阴极还原电位，所述阴极还原电位比所制备的金属的阴极电位小。电池还包括用于从电解质（30）去除这些元件的种类的收集器（50）。在使用期间，收集器（50）的电位为：比所产生的金属（20）的阴极电位小的负值，以抑制待生产的金属的种类; 并且处于或多于所述元件的种类的还原电位为负，以允许在集电体（50）上还原。电池被布置成使得所述元件的种类在集电体（50）而不是阴极（10,11）上减少，以便抑制所述元件对产品金属（20）的污染。

7. 发明申请

US20060124471A1 Electrolytic cell with improved feed device 审中-公开
标题翻译：电解槽具有改进的进料装置
公开(公告)号：US20060124471A1
公开(公告)日：2006-06-15
申请号：US10535809
申请日：2003-12-03
申请人： Thinh Nguyen , Vittorio De Nora
发明人： Thinh Nguyen , Vittorio De Nora
IPC分类号： C25C3/14
CPC分类号： C25C3/14
摘要： A cell for the electrowinning of a metal (70) from a compound thereof dissolved in a molten electrolyte comprises: a thermally insulated cell trough (10,20) and a thermally insulated cell cover (30) which are arranged to contain an electrolyte (40) and maintain it in a substantially crustless molten state; and a feeder (50) for feeding a particulate (60) of the metal compound to the molten electrolyte (40). The feeder (50) comprises a feeding tube (51) extending into the cell trough (10,20) and has a tubular end portion (52) which is located between the molten electrolyte (40) and the insulating cell cover (30) and which has a substantially horizontal axial direction. The feeder (50) is arranged to feed the particulate (60) into the feeding tube (51), along the feeding tube (51) and through an opening (53) in the tubular end portion (52) from where it is delivered over the molten electrolyte (40). The opening (53) is located at an end of the tubular end portion (52) and is arranged to deliver the particulate (60) from the feeding tube (51) substantially along the axial direction of the tubular end portion (52). The end opening (53) can be coaxial with the tubular end portion (52) or off-axis.
摘要翻译：用于从溶解在熔融电解液中的化合物电解金属（70）的电池包括：绝热电池槽（10,20）和绝热电池盖（30），其被设置成容纳电解质（40 ）并将其保持在基本上不含熔融状态; 以及用于将金属化合物的颗粒（60）进料到熔融电解质（40）的进料器（50）。进料器（50）包括延伸进入槽槽（10,20）的进料管（51），并且具有位于熔融电解质（40）和绝缘电池盖（30）之间的管状端部（52）和其具有基本上水平的轴向方向。进料器（50）被布置成沿着进料管（51）并通过管状端部（52）中的通过其被输送的管（52）的开口（53）将颗粒（60）进料到进料管（51）熔融电解质（40）。开口53位于管状端部52的端部，并且布置成基本上沿着管状端部52的轴向方向从供给管51输送颗粒60。端部开口（53）可以与管状端部（52）或离轴同轴。

8. 发明申请

US20050194066A1 Metal-based anodes for aluminium electrowinning cells 审中-公开
标题翻译：用于铝电解冶金电池的金属阳极
公开(公告)号：US20050194066A1
公开(公告)日：2005-09-08
申请号：US11103092
申请日：2005-04-11
申请人： Jean-Jacques Duruz , Thinh Nguyen , Vittorio De Nora
发明人： Jean-Jacques Duruz , Thinh Nguyen , Vittorio De Nora
IPC分类号： C22C19/07 , C25C3/12
CPC分类号： C22C19/07 , C25C3/12
摘要： An anode of a cell for the electrowinning of aluminium comprises a nickel-iron alloy substrate having an openly porous nickel metal rich outer portion whose surface is electrochemically active. The outer portion is optionally covered with an external integral nickel-iron oxide containing surface layer which adheres to the nickel metal rich outer portion of the nickel-iron alloy and which in use is pervious to molten electrolyte. During use, the nickel metal rich outer portion contains cavities some or all of which are partly or completely filled with iron and nickel compounds, in particular oxides, fluorides and oxyfluorides.
摘要翻译：用于电解铝的电池的阳极包括镍 - 铁合金基底，其具有表面具有电化学活性的开孔的镍金属丰富的外部部分。外部部分可选地覆盖有外部整合的含镍 - 铁氧化物的表面层，该表面层附着于镍 - 铁合金的富含镍金属的外部部分，并且其在使用中可透过熔融电解质。在使用期间，富含镍金属的外部部分包含空腔，其中部分或全部部分或全部被铁和镍化合物，特别是氧化物，氟化物和氟氧化物填充。

9. 发明申请

US20050000823A1 Aluminium production cells with iron-based metal alloy anodes 审中-公开
标题翻译：铝生产电池与铁基金属合金阳极
公开(公告)号：US20050000823A1
公开(公告)日：2005-01-06
申请号：US10485035
申请日：2002-08-02
申请人： Thinh Nguyen , Jean-Jacques Duruz , Vittorio De Nora
发明人： Thinh Nguyen , Jean-Jacques Duruz , Vittorio De Nora
IPC分类号： C25C3/06 , C25C3/12
CPC分类号： C25C3/06 , C25C3/12
摘要： An iron-based metal anode for the electrowinning of aluminium by the electrolysis of alumina in a molten fluoride electrolyte has an electrochemically active integral outside oxide layer on an iron-based alloy that consists of 75 to 90 weight % iron; 0.5 to 5 weight % in total of at least one rare earth metal, in particular yttrium; 1 to 10 weight % aluminium; 0 to 10 weight % copper; 0 to 10 weight % nickel; and 0.5 to 5 weight % of other elements. The total amount of aluminium, copper and nickel is in the range from 5 to 20 weight %; and the total amount of rare earth metal(s), aluminium and copper is also in the range from 5 to 20 weight %. The electrochemically active surface layer is predominantly of iron oxide that slowly dissolves into the electrolyte during operation and is maintained by progressive slow oxidation of iron at the interface of the bulk metal of the alloy with the oxide layer. This progressive slow oxidation of iron corresponds to the dissolution of iron into the electrolyte which remains at or below saturation level at the operating temperature, the operating temperature being maintained sufficiently low to limit the contamination of the product aluminium to an acceptable level, and the electrolyte being circulated to maintain a sufficient concentration of alumina in the anode cathode gap.
摘要翻译：用于通过在熔融氟化物电解质中电解氧化铝来电解提取铝的铁基金属阳极在铁基合金上具有由75至90重量％的铁组成的电化学活性的整体外部氧化物层; 总共为0.5〜5重量％的至少一种稀土金属，特别是钇; 1至10重量％的铝; 0〜10重量％的铜; 0至10重量％的镍; 和0.5〜5重量％的其他元素。铝，铜和镍的总量在5至20重量％的范围内; 稀土金属，铝和铜的总量也在5〜20重量％的范围内。电化学活性表面层主要是氧化铁，其在操作期间缓慢地溶解到电解质中，并且通过在合金的本体金属与氧化物层的界面处的铁的逐渐缓慢氧化来保持。铁的这种逐渐缓慢氧化对应于铁在电解质中的溶解，其在操作温度下保持在或低于饱和水平，操作温度保持足够低以将产品铝的污染限制在可接受的水平，并且电解质循环以在阳极阴极间隙中保持足够的氧化铝浓度。

10. 发明申请

US20080041729A1 Aluminium Electrowinning With Enhanced Electrolyte Circulation 审中-公开
标题翻译：铝电解与增强电解质循环
公开(公告)号：US20080041729A1
公开(公告)日：2008-02-21
申请号：US11667142
申请日：2005-10-24
申请人： Vittorio De Nora , Thinh Nguyen
发明人： Vittorio De Nora , Thinh Nguyen
IPC分类号： C25C3/12
CPC分类号： C25C3/12 , C25C3/06
摘要： A method of operating an aluminium electrowinning cell that has one or more metal-based anodes (5). The anodes (5) comprise metal-based foraminate anode bodies (10) which are suspended by metal-based anode stems (20) in a molten electrolyte (50) and which are spaced above a cathode (30). The method comprises electrolysing alumina dissolved in the molten electrolyte (50) by passing current via the anode stems (20) and the anode bodies (10) through the electrolyte (50) to the facing cathode (30) whereby aluminium (60) is cathodically produced and gas is anodically evolved. The gas promotes an electrolyte circulation (51) through the foraminate anode bodies (10) which facilitates dissolution of alumina. Each anode (5) has a foraminate anode body (10) suspended by least three anode stems (20) that are spaced apart from one another and distributed around a foraminate stemless central part of the anode body (10). These stems extend from the anode body (10) to above the molten electrolyte (50), the electrolyte (50) flowing up through and above said foraminate central part of the anode body (10) to enhance dissolution of alumina fed thereabove.
摘要翻译：一种操作具有一个或多个基于金属的阳极（5）的铝电解冶金池的方法。阳极（5）包括由金属基阳极杆（20）悬浮在熔融电解质（50）中并且在阴极（30）上方间隔开的金属基有机胺阳极体（10）。该方法包括通过经由阳极杆（20）和阳极体（10）将电流通过电解质（50）通过电解质（50）而电解溶解在熔融电解质（50）中的氧化铝，由此铝（60）是阴极的产生和气体阳极进化。气体促进电解质循环（51）穿过有助于氧化铝溶解的阳极体（10）。每个阳极（5）具有由至少三个阳极杆（20）悬置的阳极体（10），所述阳极体彼此间隔开并分布在阳极体（10）的无胺无茎中心部分周围。这些杆从阳极体（10）延伸到熔融电解质（50）上方，电解质（50）向上流过阳极体（10）的所述中心部分的上方并且上方，以增强在其上方供给的氧化铝的溶解。

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