专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

31. 发明授权

US06521116B2 Cells for the electrowinning of aluminium having dimensionally stable metal-based anodes 失效
标题翻译：用于电沉积具有尺寸稳定的金属阳极的铝的电池
公开(公告)号：US06521116B2
公开(公告)日：2003-02-18
申请号：US09772286
申请日：2001-01-29
申请人： Jean-Jacques Duruz , Vittorio de Nora , Olivier Crottaz
发明人： Jean-Jacques Duruz , Vittorio de Nora , Olivier Crottaz
IPC分类号： C25C308
CPC分类号： C25C3/12 , C25C3/06
摘要： A cell for the electrowinning of aluminium comprising one or more anodes (10), each having a metal-based anode substrate, for instance comprising a metal core (11) covered with an metal layer 12, an oxygen barrier layer (13), one or more intermediate layers (14; 14A, 14B) and an iron layer (15). The anode substrate is covered with an electrochemically active transition metal oxide layer, in particular an iron oxide-based outside layer (16) such as a hematite-based layer, which remains dimensionally stable during operation in a cell by maintaining in the electrolyte a sufficient concentration of iron species and dissolved alumina. The cell operating temperature is sufficiently low so species and dissolved alumina. The cell operating temperature is sufficiently low so that the required concentration of iron species in the electrolyte (5) is limited by the reduced solubility of iron species in the electrolyte at the operating temperature, which consequently limits the contamination of the product aluminium by iron to an acceptable level. The iron oxide-based layer (16) is usually an applied coating or an oxidised surface of a substrate (11, 12, 13, 14, 15), the surface (15) of which contains iron.
摘要翻译：一种用于电解提取铝的电池，包括一个或多个阳极（10），每个阳极（10）具有金属基阳极衬底，例如包括被金属层12覆盖的金属芯（11），氧阻隔层（13），一个或更多的中间层（14; 14A，14B）和铁层（15）。阳极衬底被电化学活性的过渡金属氧化物层，特别是基于氧化铁的外层（16）覆盖，例如基于赤铁矿的层，其在电池操作期间在尺寸上保持稳定，通过在电解质中维持足够的铁物质和溶解氧化铝的浓度。电池工作温度足够低，因此物质和溶解的氧化铝。电池工作温度足够低，使得电解质（5）中铁物质所需的浓度受到操作温度下铁物质在电解质中的溶解度的限制，从而将铁产品铝的污染限制在一个可以接受的水平氧化铁基层（16）通常是其表面（15）含有铁的基材（11,12,13,14,15）的涂布或氧化表面。

32. 发明授权

US06379526B1 Non-carbon metal-based anodes for aluminium production cells 失效
标题翻译：铝生产电池的非碳金属阳极
公开(公告)号：US06379526B1
公开(公告)日：2002-04-30
申请号：US09616328
申请日：2000-07-15
申请人： Vittorio de Nora , Jean-Jacques Duruz
发明人： Vittorio de Nora , Jean-Jacques Duruz
IPC分类号： C25C308
CPC分类号： C25C3/12
摘要： A non-carbon metal-based anode of a cell for the electrowinning of aluminium comprising an electrically conductive metal substrate resistant to high temperature, the surface of which becomes passive and substantially inert to the electrolyte, and a coating adherent to the metal substrate making the surface of the anode electrochemically active for the oxidation of oxygen ions present at the electrolyte interface. The substrate metal may be selected from nickel, cobalt, chromium, molybdenum, tantalum and the Lanthanide series. The active constituents of the coating are for example oxides such as spinels or perovskites, oxyfluorides, phosphides or carbides, in particular ferrites. The active constituents may be coated onto the substrate from a slurry or suspension containing colloidal material and the electrochemically active material.
摘要翻译：一种用于电解电解铝的电池的非碳金属阳极，包括耐高温的导电金属基底，其表面变得钝化并对电解质基本惰性，并且附着在金属基底上的涂层使得阳极电化学活性的表面，用于氧化存在于电解质界面处的氧离子。基底金属可以选自镍，钴，铬，钼，钽和镧系元素。涂层的活性组分例如是氧化物，例如尖晶石或钙钛矿，氟氧化物，磷化物或碳化物，特别是铁氧体。活性成分可以从含有胶体材料和电化学活性材料的浆料或悬浮液涂覆到基材上。

33. 发明授权

US6093304A Cell for aluminium electrowinning 失效
标题翻译：铝电解池用电池
公开(公告)号：US6093304A
公开(公告)日：2000-07-25
申请号：US277930
申请日：1999-03-29
申请人： Vittorio de Nora
发明人： Vittorio de Nora
IPC分类号： C25B11/12 , C25C3/00 , C25C3/08
CPC分类号： C25C3/08 , Y02P10/262
摘要： An electrolytic cell for the electrowinning of aluminium from alumina dissolved in a halide-containing molten electrolyte, has a cathode cell bottom made of a series of carbon cathode blocks (10) connected side-by-side by glue or ramming paste, each one provided with steel or other conductive bars (11) for the delivery of current and a series of anodes (15) facing the cathode cell bottom. The tops of the carbon blocks (10) forming the cathode cell bottom are shaped in such a way as to provide in the cell bottom a series of parallel channels (25) or grooves preferably coated with an aluminium-wettable refractory coating (35) covered in use by a pool (40) of molten aluminium or a layer of molten aluminium forming a drained surface. Movement of the aluminium pool (40) is decreased, cell operation improved and cell life extended.
摘要翻译：用于从溶解在含卤化物的熔融电解质中的氧化铝电解提取铝的电解槽具有由一系列由阴极块（10）构成的阴极单元底座，所述阴极单元底部由胶或捣糊糊并排连接，用钢或其他用于传送电流的导电棒（11）和面向阴极电池底部的一系列阳极（15）。形成阴极电池底部的碳块（10）的顶部成形为在电池底部提供一系列平行的通道（25）或优选地涂覆有覆盖有铝可润湿耐火涂层（35）的凹槽在熔融铝的池（40）或形成排水表面的熔融铝层中使用。铝池（40）的运动减少，细胞运行改善，细胞寿命延长。

34. 发明授权

US6077415A Multi-layer non-carbon metal-based anodes for aluminum production cells and method 失效
标题翻译：用于铝生产电池的多层非碳金属阳极和方法
公开(公告)号：US6077415A
公开(公告)日：2000-06-20
申请号：US126206
申请日：1998-07-30
申请人： Jean-Jacques Duruz , Vittorio de Nora
发明人： Jean-Jacques Duruz , Vittorio de Nora
IPC分类号： C25C3/12 , C25C7/02 , C25C3/08 , C25B11/00
CPC分类号： C25C7/025 , C25C3/12
摘要： A composite, high-temperature resistant, non-carbon metal-based anode of a cell for the electrowinning of aluminium comprises a metal-based core structure of low electrical resistance, for connecting the anode to a positive current supply, coated with a series of superimposed, adherent, electrically conductive layers. These layers consist of at least one layer on the core structure constituting a barrier substantially impervious to monoatomic oxygen and molecular oxygen; one or more intermediate, protective layers on the oxygen barrier layer which remain inactive in the reactions for the evolution of oxygen gas; and an electrochemically active layer for the oxidation reaction of oxygen ions present at the anode/electrolyte interface into nascent monoatomic oxygen, as well as for subsequent reaction for the formation of gaseous biatomic oxygen. The active layer on the outermost intermediate layer is slowly consumable during electrolysis and protects the intermediate protective layer by inhibiting its dissolution into the electrolyte.
摘要翻译：用于电解电解铝的电池的复合耐高温，非碳金属基阳极包括具有低电阻的金属基磁芯结构，用于将阳极连接到正电流源，涂覆有一系列叠加的，粘附的，导电的层。这些层由核心结构上的至少一层构成构成基本上不渗透单原子氧和分子氧的阻挡层; 阻氧层上的一个或多个中间保护层，在氧气放出反应中保持不活动; 以及用于氧化存在于阳极/电解质界面处的氧离子与新生单原子氧的氧化反应的电化学活性层，以及用于形成气态生物原子氧的后续反应。最外层中间层的活性层在电解过程中缓慢消耗，并通过抑制其溶解到电解质中来保护中间保护层。

35. 发明授权

US5203971A Composite cell bottom for aluminum electrowinning 失效
标题翻译：用于铝电解的复合电池底部
公开(公告)号：US5203971A
公开(公告)日：1993-04-20
申请号：US788919
申请日：1991-11-07
申请人： Vittorio de Nora , Jean-Jacques Duruz , Brian Cronin
发明人： Vittorio de Nora , Jean-Jacques Duruz , Brian Cronin
IPC分类号： C25C3/08
CPC分类号： C25C3/08
摘要： A cell for the electrowinning of aluminum from molten salts has a cell bottom lining consisting partly of a refractory mass (4 ) and partly of carbon bodies (5). At least 30% and preferably 50% or more of the cell bottom area is occupied by the refractory mass (4). The carbon bodies (5) are level with the refractory mass (4) or are recessed therein.
摘要翻译：用于从熔融盐中电解提取铝的电池具有部分由耐火材料（4）和部分碳体（5）组成的电池底部衬里。电池底部面积的至少30％，优选为50％以上被耐火材料块（4）所占据。碳体（5）与耐火材料块（4）平齐或凹入其中。

36. 发明授权

US4285799A Electrodes for electrolytic processes, especially metal electrowinning 失效
标题翻译：用于电解工艺的电极，特别是金属电解冶金
公开(公告)号：US4285799A
公开(公告)日：1981-08-25
申请号：US97345
申请日：1979-11-26
申请人： Vittorio de Nora , Antonio Nidola , Placido M. Spaziante
发明人： Vittorio de Nora , Antonio Nidola , Placido M. Spaziante
IPC分类号： C25B11/04 , C25B11/06 , C25B11/08 , C25B11/16 , C25C7/02 , C25B1/00
CPC分类号： C25C7/02 , C25B11/0484
摘要： PCT No. PCT/EP79/00020 Sec. 371 Date Nov. 28, 1979 Sec. 102(e) Date Nov. 26, 2979 PCT Filed Mar. 27, 1979 PCT Pub. No. WO79/00840 PCT Pub. Date Oct. 18, 1979An electrode for electrolytic processes such as the recovery of uranium dioxide from seawater comprises an electrically-conductive corrosion-resistant substrate having an electrocatalytic coating which is preferably a mixture of 30 to 80 parts by weight of platinum, 20 to 70 parts by weight (as Mn metal) of .beta.--MnO.sub.2 and 2 to 10 parts by weight (as Sn metal) of tin dioxide.
摘要翻译： PCT No.PCT / EP79 / 00020 Sec。 371日期1979年11月28日 102（e）日期：2979年11月26日PCT提交1979年3月27日PCT公布。公开号WO79 / 00840 1979年10月18日，用于从海水中回收二氧化铀的电解工艺的电极包括具有电催化涂层的导电耐腐蚀基材，其优选为30〜80重量份的铂，20〜 70重量份（作为Mn金属）的β-MnO 2和2〜10重量份（作为Sn金属）的二氧化锡。

37. 发明授权

US4272354A Electrodes for electrolytic processes 失效
标题翻译：电解电极
公开(公告)号：US4272354A
公开(公告)日：1981-06-09
申请号：US97346
申请日：1979-11-26
申请人： Vittorio de Nora , Antonio Nidola , Placido M. Spaziante , Giuseppe Bianchi
发明人： Vittorio de Nora , Antonio Nidola , Placido M. Spaziante , Giuseppe Bianchi
IPC分类号： C25B1/34 , A61B1/227 , A61B1/233 , C25B1/46 , C25B9/10 , C25B11/04 , C25B11/06 , C25B11/10 , G01H9/00
CPC分类号： C25B11/0478 , C25B11/0484
摘要： Electrodes for electrolytic processes comprise an electrically-conductive and corrosion-resistant substrate, having a coating thereon which contains a solid solution of tin dioxide and bismuth trioxide, preferably in a ratio of 9:1 to 4:1 by weight of the respective metals. This solid solution may form the active coating or an intermediate layer covered with other electrocatalytic materials or may be included in a multi-component coating having selective properties for halogen evolution and oxygen inhibition.
摘要翻译：用于电解处理的电极包括导电和耐腐蚀的基底，其上具有包含二氧化锡和三氧化铋的固溶体的涂层，优选以相应金属的重量比为9:1至4:1。该固溶体可以形成活性涂层或用其它电催化材料覆盖的中间层，或者可以包含在具有卤素析出和氧抑制的选择性质的多组分涂层中。

38. 发明授权

US4187155A Molten salt electrolysis 失效
标题翻译：熔盐电解
公开(公告)号：US4187155A
公开(公告)日：1980-02-05
申请号：US940277
申请日：1978-09-07
申请人： Vittorio de Nora , Placido M. Spaziante , Antonio Nidola
发明人： Vittorio de Nora , Placido M. Spaziante , Antonio Nidola
IPC分类号： C25C3/06 , C25C3/12 , C25C7/02 , C25B11/04
CPC分类号： C25C7/025 , C25C3/06 , C25C3/12
摘要： A novel method of molten salt electrolysis and novel electrolytic cells for molten salt electrolysis wherein the anodes for the electrolysis are comprised of a self-sustaining matrix of sintered powders of at least one oxycompound such as oxides, multipleoxides, mixed oxides, oxyhalides and oxycarbides, of at least one metal selected from the group consisting of lanthanum, terbium, erbium, ytterbium, thorium, titanium, zirconium, hafnium, niobium, chromium and tantalum and at least one electroconductive agent, the said anode being provided over at least a portion of its surface with at least one electrocatalyst for the electrolysis reaction and bipolar electrodes for the said cells which electrodes are resistant to corrosion in molten salt electrolysis and have good electroconductive and good electrocatalytic activity.
摘要翻译：熔盐电解的新方法和用于熔盐电解的新型电解池，其中电解阳极由至少一种氧化合物如氧化物，多氧化物，混合氧化物，卤氧化物和碳氧化物的烧结粉末的自持基质组成，的至少一种选自镧，铽，铒，镱，钍，钛，锆，铪，铌，铬和钽的金属和至少一种导电剂，所述阳极设置在至少一部分其表面具有用于电解反应的至少一个电催化剂和用于所述电池的双极电极，该电极在熔融盐电解中具有耐腐蚀性并且具有良好的导电性和良好的电催化活性。

39. 发明申请

US20110031129A1 Aluminium electrowinning cells with metal-based anodes 审中-公开
标题翻译：具有金属阳极的铝电解冶金电池
公开(公告)号：US20110031129A1
公开(公告)日：2011-02-10
申请号：US10530884
申请日：2003-10-17
申请人： Vittorio de Nora
发明人： Vittorio de Nora
IPC分类号： C25C3/06 , C25C3/18 , C25C3/12
CPC分类号： C25C7/025 , C25C3/12 , C25C3/125
摘要： A cell for the electrowinning of aluminium comprises a metal-based anode (10) containing at least one of nickel, cobalt and iron, for example an anode made from an alloy consisting of 50 to 60 weight % in total of nickel and/or cobalt; 25 to 40 weight % iron; 6 to 12 weight % copper; 0.5 to 2 weight % aluminium and/or niobium; and 0.5 to 1.5 weight % in total of further constituents. The anode (10) may have an applied hematite-based coating and optionally a cerium oxyfluoride-based outermost coating. The cell contains a fluoride-containing molten electrolyte (5) at a temperature below 940° C., in which the anode is immersed and which consists of: 5 to 14 weight % dissolved alumina; 35 to 45 weight % aluminium fluoride; 30 to 45 weight % sodium fluoride; 5 to 20 weight % potassium fluoride; 0 to 5 weight % calcium fluoride; and 0 to 5 weight % in total of one or more further constituents. A nickel-containing anode stem (14b) can be used to suspend the anode (10) in the electrolyte facing a cathode (21,21A,25) that has an aluminium-wettable surface (20), in particular a drained horizontal or inclined surface.
摘要翻译：用于电解铝的电池包括含有镍，钴和铁中的至少一种的金属基阳极（10），例如由合金制成的阳极，该合金由总计为50至60重量％的镍和/或钴 ; 25至40重量％铁; 6至12重量％的铜; 0.5至2重量％的铝和/或铌; 和总共0.5〜1.5重量％的其他成分。阳极（10）可以具有施加的赤铁矿基涂层和任选的基于氟化铈的最外涂层。电池在低于940℃的温度下含有含氟化物的熔融电解质（5），其中浸渍阳极，其由5至14重量％的溶解氧化铝组成; 35至45重量％氟化铝; 30至45重量％氟化钠; 5至20重量％氟化钾; 0-5重量％氟化钙; 和一种或多种其它成分的总计为0至5重量％。可以使用含镍的阳极杆（14b）将阳极（10）悬挂在面向具有铝可润湿表面（20）的阴极（21,21A，25）的电解质中，特别是排水的水平或倾斜表面。

40. 发明授权

US06656520B2 Surface coated non-carbon metal-based anodes for aluminum production cells 失效
标题翻译：用于铝生产电池的表面涂覆的非碳金属基阳极
公开(公告)号：US06656520B2
公开(公告)日：2003-12-02
申请号：US09992805
申请日：2002-03-14
申请人： Vittorio de Nora
发明人： Vittorio de Nora
IPC分类号： B05D512
CPC分类号： C25C7/025 , C25C3/12
摘要： A non-carbon, metal-based, high temperature resistant, electrically conductive and electrochemically active anode of a cell for the production of aluminum has a metal-based substrate to which an adherent coating is applied prior to its immersion into the electrolyte and start up of the electrolysis by connection to the positive current supply. The coating is obtainable from one or more layers applied from: a liquid solution, a dispersion in a liquid or a paste, a suspension in a liquid or a paste, and a pasty or non-pasty slurry, and combinations thereof with or without one or more further applied layers, with or without heat treatment between two consecutively applied layers when at least two layers are applied. The coating is after final heat treatment electrically conductive and during operation in the cell electrochemically active for the oxidation of oxygen ions present at the surface of the anode to form monoatomic nascent oxygen which as such or as biatomic molecular gaseous oxygen oxidizes or further oxidizes the surface of the coating, or part or most of the coating or the surface of the substrate, to form a barrier to the ionic and gaseous oxygen and even a barrier to the nascent monoatomic oxygen, the coating having a slow dissolution rate in the fluoride-containing electrolyte.
摘要翻译：用于生产铝的电池的非碳，金属基，耐高温，导电和电化学活性阳极具有金属基底，在其浸入电解质中之前施加粘附涂层并启动的电解通过连接到正电流源。该涂层可从一个或多个层获得，所述层从液体溶液，液体中的分散体或糊状物，液体中的悬浮液或糊状物，以及糊状或非糊状浆料，以及其组合或不与一种或更多的施加层，当施加至少两层时，在两个连续施加的层之间进行或不进行热处理。涂层在最终热处理之后是导电的，并且在电池操作期间电化学活性以氧化存在于阳极表面的氧离子，以形成单原子的新生氧，其原样或作为双原子分子气态氧氧化或进一步氧化表面的涂层或基底的一部分或大部分涂层或表面，以形成对离子和气态氧的屏障，甚至形成对初生单原子氧的屏障，该涂层在含氟化物的溶液中具有缓慢的溶解速率电解液

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式