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41. 发明授权

EP1423556B1 ALUMINIUM ELECTROWINNING CELLS WITH SLOPING FORAMINATE OXYGEN-EVOLVING ANODES 有权
标题翻译：与INCLINE穿孔氧DEVELOPMENT涂层阳极铝合金电动混乱细胞
公开(公告)号：EP1423556B1
公开(公告)日：2004-12-22
申请号：EP02758744.3
申请日：2002-08-29
申请人： MOLTECH Invent S.A.
发明人： DE NORA, Vittorio
IPC分类号： C25C3/08 , C25C3/12
CPC分类号： C25C3/08 , C25C3/12
摘要： A cell for the electrowinning of aluminium (50) from alumina, comprises an inclined plate-like or grid-like open anode structure (25) which has a generally v-shaped configuration in cross-section. The anode structure (25) has a downwardly-oriented sloping electrochemically active surface that is generally v-shaped in cross-section and spaced above an upwardly-oriented corresponding sloping cathode surface (11) by an anode-cathode gap (40) in which alumina dissolved in a circulating electrolyte (60) is electrolysed. The anode structure (25) has a plurality of anode through-passages (45) distributed thereover for an up-flow of alumina-depleted electrolyte (60) from the anode-cathode gap (40). One or more electrolyte guide members (30,30',30'') located above the open anode structure (25) is/are arranged to guide substantially all the up-flowing alumina-depleted electrolyte (60) to an alumina feeding area (63), where it is enriched with alumina and then over and around an upper end (27) of the generally v-shaped plate-like or grid-like anode structure (25) into the anode-cathode gap (40). Alumina-enriched electrolyte (60) can be fed into a lower end and/or into an upper end of the anode-cathode gap (40).

42. 发明授权

EP1392891B1 ALUMINIUM ELECTROWINNING CELLS HAVING A DRAINED CATHODE BOTTOM AND AN ALUMINIUM COLLECTION RESERVOIR 有权
标题翻译：具有排出阴极底部的铝电解细胞和铝收集池
公开(公告)号：EP1392891B1
公开(公告)日：2004-10-06
申请号：EP02726381.3
申请日：2002-05-28
申请人： MOLTECH Invent S.A.
发明人： DE NORA, Vittorio
IPC分类号： C25C3/08
CPC分类号： C25C3/08
摘要： A cell for the electrowinning of aluminium comprises a plurality of anodes, in particular oxygen-evolving anodes (10), facing a series of pairs of cathode blocks (25), in particular graphite blocks, with aluminium-wettable drained cathode surfaces (20) placed across the cell and a longitudinal aluminium collection recess (35) which is located between the cathode blocks (25) and which extends along the cell and is at a lower level than the drained cathode surfaces (20) so that during use aluminium produced on the drained cathode surfaces (20) drains into the aluminium collection recess (35). The aluminium collection recess (35) is defined by a separate reservoir body. in particular an anthracite body, which is placed between the cathode blocks (25) and spaces them apart across the cell. The reservoir body (30) extends along the cell and has preferably a U-shaped cross-section across the cell.
摘要翻译：用于电解铝的电解槽包括多个阳极，尤其是氧析出阳极（10），面对一系列阴极块（25），特别是石墨块，具有铝可湿性排出的阴极表面（20）放置在电池单元和位于阴极块（25）之间并且沿着电解槽延伸且位于比排出的阴极表面（20）低的水平处的纵向铝收集凹部（35），使得在使用过程中产生的铝排出的阴极表面（20）排入铝收集凹部（35）。铝收集凹部（35）由单独的储液器本体限定。特别是放置在阴极块（25）之间并将它们隔开穿过单元的无烟煤体。储液器主体（30）沿着单元延伸并且优选具有横跨单元的U形横截面。

43. 发明授权

EP1230435B1 LOW TEMPERATURE OPERATING CELL FOR THE ELECTROWINNING OF ALUMINIUM 有权
标题翻译：低温度驱动电解槽对铝生产
公开(公告)号：EP1230435B1
公开(公告)日：2004-09-15
申请号：EP00966359.2
申请日：2000-10-16
申请人： MOLTECH Invent S.A.
发明人： DE NORA, Vittorio , DURUZ, Jean-Jacques
IPC分类号： C25C3/08 , C25C3/06
CPC分类号： C25C3/08 , C25C3/06
摘要： A cell for the electrowinning of aluminium using anodes (10) made from a alloy of iron with nickel and/or cobalt is arranged to produce aluminium of low contamination and of commercial high grade quality. The cell comprises a cathode (20) of drained configuration and operates at reduced temperature without formation of a crust or ledge of solidified electrolyte. The cell is thermally insulated using an insulating cover (65, 65a, 65b, 65c) and an insulating sidewall lining (71). The molten electrolyte (30) is substantially saturated with alumina, particularly on the electrochemically active anode surface, and with species of at least one major metal present at the surface of the nickel-iron alloy based anodes (10). The cell is preferably operated at reduced temperature from 730 DEG to 910 DEG C to limit the solubility of these metal species and consequently the contamination of the product aluminium.

44. 发明公开

EP1436446A2 PRECURSEUR DE REVETEMENT ET PROCEDE POUR REVETIR UN SUBSTRAT D'UNE COUCHE REFRACTAIRE 审中-公开
标题翻译： PRE用于涂覆基材的有耐火涂层涂覆和方法
公开(公告)号：EP1436446A2
公开(公告)日：2004-07-14
申请号：EP02785544.4
申请日：2002-10-11
申请人： ALUMINIUM PECHINEY
发明人： LAMAZE Airy-Pierre , BARTHELEMY, Christian
IPC分类号： C23C24/08
CPC分类号： C04B41/009 , C04B35/62222 , C04B35/634 , C04B41/5031 , C04B41/5035 , C04B41/5037 , C04B41/87 , C04B2111/00879 , C08K3/013 , C09D183/04 , C23C24/08 , C23C26/00 , C25C3/08 , C25C3/125 , C04B41/4539 , C04B41/455 , C04B41/5027 , C04B41/507 , C04B35/522
摘要： The invention concerns a coating precursor comprising a silicone resin, a metal compound and an organic solvent capable of dissolving said silicone and of suspending said metal compound, said silicone resin and said metal compound being capable of chemically reacting so as to produce a solid layer on a substrate after the organic solvent has evaporated and a cohesive refractory layer after a calcination process. The invention also concerns a method for coating a specific surface of a substrate with at least a refractory silicon-containing layer which consists in coating the substrate with a coating precursor of the invention, so as to form a raw layer and carrying out a heat treatment so as to calcine said raw layer and form a cohesive refractory layer. The invention enables to obtain a protective coating resistant to oxidizing environments, liquid metal or molten salt.

45. 发明授权

EP1112393B1 BIPOLAR CELL FOR THE PRODUCTION OF ALUMINIUM WITH CARBON CATHODES 有权
标题翻译： BIPOLARE ZELLE MIT KOHLENSTOFF-KATHODEN ZUR HERSTELLUNG VON ALUMINUM
公开(公告)号：EP1112393B1
公开(公告)日：2003-03-12
申请号：EP99936904.4
申请日：1999-08-17
申请人： MOLTECH Invent S.A.
发明人： DURUZ, Jean-Jacques , DE NORA, Vittorio
IPC分类号： C25C3/08
CPC分类号： C25C3/08 , C25C3/06 , C25C3/12
摘要： A bipolar cell for the electrowinning of aluminium has bipolar electrodes each comprising a carbon cathode body having on one side an active surface on which aluminium is produced and connected on the other side through an oxygen impermeable barrier layer to an electrochemically active anode layer having an oxygen evolving iron oxide-based outer surface. The anode layer may comprise a metal-based anode substrate and a transition metal oxide-based outside layer, in particular an iron oxide-based outside layer, which either is an applied layer or is obtainable by oxidising the surface of the anode substrate which contains iron. During operation, the anode layer can be kept dimensionally stable by maintaining in the electrolyte a concentration of transition metal species which are present as one or more corresponding transition metal oxides in the electrochemically-active layer. The cell operating temperature is sufficiently low so that the required concentration of transition metal species in the electrolyte is limited by the reduced solubility thereof in the electrolyte at the operating temperature. This limits the contamination of the product aluminium by the transition metal species to an acceptable level.
摘要翻译：用于电解电解铝的双极电池具有双极电极，每个双极电极均包含碳阴极体，该碳阴极体的一侧具有在其上产生铝的活性表面，另一侧通过不透氧阻挡层连接到具有氧的电化学活性阳极层不断发展的基于氧化铁的外表面。阳极层可以包括基于金属的阳极衬底和基于过渡金属氧化物的外层，特别是基于氧化铁的外层，其可以是施加层，或者可以通过氧化阳极衬底的表面而获得，其包含铁。在操作期间，通过在电化学活性层中保持作为一种或多种相应的过渡金属氧化物存在的过渡金属物质的浓度来维持阳极层的尺寸稳定性。电池工作温度足够低，使得电解质中过渡金属物质所需的浓度受到在工作温度下在电解质中溶解度的降低的限制。这将产品铝的过渡金属物质的污染限制在可接受的水平。

46. 发明授权

EP0973955B1 VERFAHREN ZUR HERSTELLUNG EINER TITANBORIDHALTIGEN BESCHICHTUNG 失效
标题翻译：一种用于生产涂料TITANBORIDHALTIGEN
公开(公告)号：EP0973955B1
公开(公告)日：2003-02-12
申请号：EP98919140.8
申请日：1998-03-24
申请人： SGL Carbon AG
发明人： SEITZ, Katharina , SÜSSBRICH, Stephan , HORNUNG, Michael , KÜHN, Heinrich , HILTMANN, Frank
IPC分类号： C23C4/10 , C23C4/04
CPC分类号： C23C14/00 , C23C4/10 , C25C3/08 , F27D1/1636 , F27D2099/0031 , Y02P10/262
摘要： This invention concerns a method for producing a coating containing at least 80 wt.% titanium boride, in which a coating of 0.1 to 1mm thickness with a maximum porosity of 10 vol.-% and with an oxygen content under 1 wt.% is applied to the surface of a substrate body using plasma spraying in a nearly or totally oxygen-free atmosphere. No metallic powder is added to the spray powder.

47. 发明公开

EP1230435A1 LOW TEMPERATURE OPERATING CELL FOR THE ELECTROWINNING OF ALUMINIUM 有权
标题翻译：低温度驱动电解槽对铝生产
公开(公告)号：EP1230435A1
公开(公告)日：2002-08-14
申请号：EP00966359.2
申请日：2000-10-16
申请人： MOLTECH Invent S.A.
发明人： DE NORA, Vittorio , DURUZ, Jean-Jacques
IPC分类号： C25C3/08 , C25C3/06
CPC分类号： C25C3/08 , C25C3/06
摘要： A cell for the electrowinning of aluminium using anodes (10) made from a alloy of iron with nickel and/or cobalt is arranged to produce aluminium of low contamination and of commercial high grade quality. The cell comprises a cathode (20) of drained configuration and operates at reduced temperature without formation of a crust or ledge of solidified electrolyte. The cell is thermally insulated using an insulating cover (65, 65a, 65b, 65c) and an insulating sidewall lining (71). The molten electrolyte (30) is substantially saturated with alumina, particularly on the electrochemically active anode surface, and with species of at least one major metal present at the surface of the nickel-iron alloy based anodes (10). The cell is preferably operated at reduced temperature from 730° to 910°C to limit the solubility of these metal species and consequently the contamination of the product aluminium.

48. 发明公开

EP1146146A3 Horizontal drained cathode surface with recessed grooves for aluminium electrowinning 失效
标题翻译：与凹槽沥干铝的电解提取水平阴极表面
公开(公告)号：EP1146146A3
公开(公告)日：2002-05-02
申请号：EP01116922.4
申请日：1995-08-30
申请人： MOLTECH INVENT S.A.
发明人： De Nora, Vittorio
IPC分类号： C25C3/08
CPC分类号： C25C3/08 , Y02P10/262
摘要： A cathode bottom of a cell for the electrowinning of aluminium from alumina comprises a horizontal aluminium-wettable drained cathode surface having a series of parallel spaced apart recessed grooves extending across the cathode bottom for facilitating collection of product aluminium draining from the horizontal cathode surface. The cathode bottom comprises a series of cathode blocks (10) placed side-by-side along the cathode bottom. Each cathode block extends lengthwise across the cathode bottom. The cathode blocks have flat top surfaces that form said horizontal aluminium-wettable drained cathode surface and cut-outs or bevels (20) along opposite upper side edges that extend across the cathode bottom so that two cathode blocks placed side-by-side along their cut-outs or bevels form between them one of these recessed grooves across the cathode bottom.

49. 发明授权

EP0730677B1 REFRACTORY/CARBON COMPONENTS OF ALUMINIUM PRODUCTION CELLS 失效
标题翻译：铝生产细胞的耐火材料/碳组分
公开(公告)号：EP0730677B1
公开(公告)日：2001-02-14
申请号：EP94901467.4
申请日：1993-11-12
申请人： MOLTECH Invent S.A.
发明人： SEKHAR, Jainagesh A.
IPC分类号： C25B3/08 , B05D5/12 , B05D3/02 , B32B18/00 , B32B9/04 , C25C3/08
CPC分类号： C25C3/08 , B32B18/00 , C04B2237/363
摘要： A component of an aluminium production cell, in particular a cathode or a cell lining of an electrolytic cell for the production of aluminium by the electrolysis of alumina in cryolite, having an aluminium-wettable refractory coating on a heat-stable baked carbon-containing body, is produced from a part-manufactured cell component which is a layered composite of two precursors. A precursor layer of the aluminium-wettable refractory coating contains at least one aluminium-wettable refractory material in particulate form, or a particulate micropyretic reaction mixture which when ignited reacts to form at least one aluminium-wettable refractory material, or a mixture thereof, and non-carbon fillers and binders. A non-baked or part-baked precursor of the heat-stable carbon-containing body comprises particulate carbon compacted with a heat-convertible binder which when subjected to heat treatment binds the particulate carbon into the heat-stable carbon-containing body of the fully-manufactured cell component. This layered composite is convertible to the fully-manufactured cell component by heat treatment to form the aluminium-wettable refractory coating and simultaneously bind and heat-stabilize the carbon-containing body.
摘要翻译：铝生产电池的组件，特别是用于通过电解冰晶石中的氧化铝来生产铝的电解池的阴极或电池内衬，在热稳定的经烘焙的含碳体上具有铝可湿性耐火涂层由部分制造的细胞成分生产，细胞成分是两种前体的层状复合物。铝可湿性耐火涂层的前体层含有至少一种颗粒形式的铝可湿性耐火材料或者当点燃时反应形成至少一种铝可湿性耐火材料或其混合物的微粒状微透声反应混合物和非碳填料和粘合剂。热稳定的含碳主体的未烘烤或部分烘焙的前体包括用热转化粘合剂压实的颗粒碳，当热处理时，该颗粒碳将颗粒碳结合到完全热稳定的含碳主体中制造单元组件。该层状复合材料通过热处理可转变为完全制造的电池部件以形成铝可湿性耐火涂层并同时结合并热稳定含碳主体。

50. 发明公开

EP0996773A1 A DRAINED CATHODE CELL FOR THE PRODUCTION OF ALUMINIUM 失效
标题翻译： CELL与DRAINIERFÄHIGE阴极铝生产
公开(公告)号：EP0996773A1
公开(公告)日：2000-05-03
申请号：EP98928496.3
申请日：1998-07-07
申请人： MOLTECH Invent S.A.
发明人： DE NORA, Vittorio , DURUZ, Jean-Jacques
IPC分类号： C25C3/08
CPC分类号： C25C3/08
摘要： A drained cathode cell for the production of aluminium by the electrolysis of an aluminium compound dissolved in a molten electrolyte, in which a dimensionally stable active cathode surface (35) has a sloping aluminium-wettable surface (37) permitting the produced aluminium to drain from the cathode surface. The anodes (10) are carbon or non-carbon anodes with active faces (16) facing cathode surfaces (35) both at a slope up to about 60°. The anode-cathode gap between the sloping anodes and cathodes is no more than 3 cm and is configured such that an upward circulation of the electrolyte is induced in the anode-cathode space by the anodically-released gases. An alumina-rich melt is fed at the lower part of the anode-cathode gap.

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