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1. 发明授权

US06194096B1 Carbon bodies resistant to deterioration by oxidizing gases 失效
标题翻译：通过氧化气体耐恶化的碳体
公开(公告)号：US06194096B1
公开(公告)日：2001-02-27
申请号：US09101349
申请日：1998-11-25
申请人： Jainagesh A. Sekhar , Vittorio de Nora , Jean-Jacques Duruz
发明人： Jainagesh A. Sekhar , Vittorio de Nora , Jean-Jacques Duruz
IPC分类号： H01M488
CPC分类号： C04B41/009 , C04B41/5006 , C04B41/52 , C04B41/85 , C04B41/89 , C04B2111/00853 , C04B2111/00879 , C25C3/08 , C25C3/125 , C04B41/4535 , C04B41/4572 , C04B41/50 , C04B41/5089 , C04B41/522 , C04B41/5022 , C04B41/507 , C04B35/52 , C04B41/4521 , C04B41/4543 , C04B41/5007
摘要： A carbon body, in particular a prebaked anode of an electrolytic cell for the production of aluminum by the electrolysis of alumina in a molten fluoride electrolyte, is treated over its surfaces to improve the resistance thereof to deterioration during operation of the cell by air and oxidizing gases released at the anode, by immersing the body in a treating liquid containing a soluble boron compound and at least one additive from the group consisting of aluminum compounds, calcium compounds, sodium compounds, magnesium compounds, silicon compounds, elemental carbon, and elemental aluminum, said additive being in the form of a powder, in suspension such as a colloid, or in solution, e.g., at 80° to 120° C. The same treatment can also be applied to a carbon mass forming a Söderberg anode and to cell sidewalls. The additives increase strength and improve oxidation resistance compared to impregnation with boric acid alone.
摘要翻译：碳体，特别是用于通过在熔融氟化物电解质中电解氧化铝来生产铝的电解槽的预烘烤阳极在其表面上进行处理，以提高其在空气和氧化下电池操作期间的劣化性通过将体内浸入含有可溶性硼化合物的处理液和至少一种由铝化合物，钙化合物，钠化合物，镁化合物，硅化合物，元素碳和元素铝组成的组中的添加剂而释放出的气体所述添加剂为粉末状，悬浮液如胶体，或在溶液中，例如在80℃至120℃。同样的处理也可应用于形成Söderberg阳极和细胞的碳质量侧壁与单独使用硼酸浸渍相比，添加剂增加了强度并提高了抗氧化性。

2. 发明授权

US5651874A Method for production of aluminum utilizing protected carbon-containing components 失效
标题翻译：利用受保护的含碳组分生产铝的方法
公开(公告)号：US5651874A
公开(公告)日：1997-07-29
申请号：US290923
申请日：1994-09-14
申请人： Vittorio de Nora , Jainagesh A. Sekhar
发明人： Vittorio de Nora , Jainagesh A. Sekhar
IPC分类号： C04B41/50 , C04B41/87 , C25C3/08 , C25C3/06 , B05D1/36 , B05D3/02 , B05D5/12
CPC分类号： C04B41/009 , C04B41/507 , C04B41/87 , C25C3/08
摘要： Carbon-containing components (1, 2, 5) of cells for the production of aluminium (8) by the electrolysis of alumina dissolved in a cryolite-based molten electrolyte (7) are protected from attack by liquid and/or gaseous components of the electrolyte (7) in the form of elements, ions or compounds, by a refractory boride coating (9, 10, 11) applied from a slurry composed of preformed particulate refractory boride in a colloidal carrier which is dried and heated to consolidate the coating.
摘要翻译： PCT No.PCT / US93 / 05142 Sec。 371日期：1994年9月14日 102（e）1994年9月14日PCT PCT 1993年5月28日PCT公布。公开号WO93 / 25731 日期1993年12月23日通过电解溶解在冰晶石基熔融电解质（7）中的氧化铝来生产铝（8）的电池的含碳成分（1，2，5）被保护免受液体和/ 或元素，离子或化合物形式的电解质（7）的气态组分，通过由预先形成的颗粒耐火硼化物组成的浆料施加在经干燥和加热的胶体载体中的耐火硼化物涂层（9,10,11）巩固涂层。

3. 发明授权

US5507933A Carbon masses for use in aluminium production cells and process 失效
标题翻译：用于铝生产细胞和工艺的碳质量
公开(公告)号：US5507933A
公开(公告)日：1996-04-16
申请号：US307702
申请日：1994-09-27
申请人： Vittorio de Nora , Jainagesh A. Sekhar
发明人： Vittorio de Nora , Jainagesh A. Sekhar
IPC分类号： C25C3/06 , C04B35/52 , C04B35/528 , C04B37/00 , C25C3/08 , C25C3/12 , C25B11/12 , C04B35/00
CPC分类号： C04B35/645 , C04B35/528 , C04B37/005 , C04B37/006 , C25C3/08 , C25C3/125 , C04B2235/6587 , C04B2237/086 , C04B2237/09 , C04B2237/121 , C04B2237/363 , C04B2237/385
摘要： A cell component for use in particular as anodes, cathodes and cell linings of cells for the electrolysis of alumina for the production of aluminum, comprising a solidified carbon containing paste consisting essentially of a compact mixture of one or more particulate carbonaceous material(s) with a non-carbonaceous binder and optionally with one or more fillers to form a fluid paste, the binder being a suspension of one or more colloids or being derived from one or more colloid precursors or colloid reagents optionally with chelating agents. A method of producing the cell component is also included.
摘要翻译：用于特别用作用于生产铝的氧化铝电解的电池的阳极，阴极和电池衬垫的电池组件，包括固体含碳糊料，其基本上由一种或多种颗粒状碳质材料与非碳质粘合剂和任选地具有一种或多种填料以形成流体糊剂，所述粘合剂是一种或多种胶体的悬浮液，或者任选地与一种或多种胶体前体或胶体试剂衍生自螯合剂。还包括生产电池组件的方法。

4. 发明授权

US06607657B2 Carbon-containing components of aluminium production cells 失效
公开(公告)号：US06607657B2
公开(公告)日：2003-08-19
申请号：US09915212
申请日：2001-07-25
申请人： Vittorio de Nora , Jainagesh A. Sekhar
发明人： Vittorio de Nora , Jainagesh A. Sekhar
IPC分类号： C25C308
CPC分类号： C04B41/009 , C04B41/5025 , C04B41/5062 , C04B41/507 , C04B41/52 , C04B41/87 , C04B41/89 , C04B2103/0004 , C04B2111/00112 , C25C3/08 , C25C3/085 , C25C3/125 , C04B41/0072 , C04B41/4539 , C04B41/455 , C04B41/46 , C04B41/5027 , C04B41/5015 , C04B2103/0086 , C04B41/5022 , C04B41/5155 , C04B41/4535 , C04B41/4554 , C04B41/5053 , C04B35/52
摘要： Carbon-containing components of cells for the production of aluminium by the electrolysis of alumina dissolved in a cryolite-based molten electrolyte are protected from attack by liquid and/or gaseous components of the electrolyte in the form of elements, ions or compounds, by a refractory boride coating applied from a slurry composed of pre-formed particulate refractory boride in a colloidal carrier which is dried and heated to consolidate the coating.

5. 发明授权

US5527442A Refractory protective coated electroylytic cell components 失效
$Refractory protective coated electroylytic cell components$
标题翻译：耐火保护涂层电解质细胞成分
公开(公告)号：US5527442A
公开(公告)日：1996-06-18
申请号：US143178
申请日：1993-10-26
申请人： Jainagesh A. Sekhar , Vittorio de Nora
发明人： Jainagesh A. Sekhar , Vittorio de Nora
IPC分类号： C04B41/50 , C04B41/52 , C04B41/87 , C04B41/89 , C25C3/08 , C25C3/12
CPC分类号： C04B41/507 , C04B41/5025 , C04B41/5062 , C04B41/52 , C04B41/87 , C04B41/89 , C25C3/08 , C25C3/085 , C25C3/125 , Y10T428/12486 , Y10T428/12576 , Y10T428/12618 , Y10T428/12674 , Y10T428/12806 , Y10T428/12812 , Y10T428/12819 , Y10T428/12826 , Y10T428/12854
摘要： A carbonaceous, refractory or metal alloy substrate material coated with a refractory material, the refractory material including at least one of borides, silicides, nitrides, aluminides, carbides, phosphides, oxides, metal alloys, inter-metallic compounds and mixtures of one of titanium, chromium, zirconium, hafnium, vanadium, silicon, niobium, tantalum, nickel, molybdenum and iron and at least one refractory oxide of rare earth metals. An aluminum production cell including a component made up of a material coated with the coating described above is also disclosed.
摘要翻译：涂覆有耐火材料的碳质耐火材料或金属合金基底材料，所述耐火材料包括硼化物，硅化物，氮化物，铝化物，碳化物，磷化物，氧化物，金属合金，金属间化合物和钛中的至少一种的混合物，铬，锆，铪，钒，硅，铌，钽，镍，钼和铁以及至少一种难熔的稀土金属氧化物。还公开了一种包括由涂覆有上述涂层的材料构成的部件的铝制电池。

6. 发明授权

US5364513A Electrochemical cell component or other material having oxidation preventive coating 失效
标题翻译：电化学电池组件或具有防氧化涂层的其它材料
公开(公告)号：US5364513A
公开(公告)日：1994-11-15
申请号：US898052
申请日：1992-06-12
申请人： Jainagesh A. Sekhar , Vittorio de Nora
发明人： Jainagesh A. Sekhar , Vittorio de Nora
IPC分类号： C25C3/06 , C04B35/58 , C04B41/50 , C04B41/52 , C04B41/87 , C04B41/89 , C23C20/08 , C25C3/08 , C25C3/12 , B05D1/36 , B05D5/12 , C25C3/16
CPC分类号： C04B41/507 , C04B41/5025 , C04B41/5062 , C04B41/52 , C04B41/87 , C04B41/89 , C25C3/08 , C25C3/085 , C25C3/125
摘要： A body of carbonaceous or other material for use in corrosive environments such as oxidizing media or gaseous or liquid corrosive agents at elevated temperatures, in particular in molten salts such as cryolite, is coated with a protective surface coating which improves the resistance of the body to oxidation or corrosion and which may also enhance the bodies electrical conductivity and/or its electrochemical activity. The protective coating is applied in one or more layers from a colloidal slurry containing reactant or non-reactant substances, or a mixture of reactant and non-reactant substances, in particular mixtures containing silicon carbide and molybdenum silicide or silicon carbide and silicon nitride, which when the body is heated to a sufficient elevated temperature reaction sinter as a result of micropyretic reaction and/or sinter without reaction to form the protective coating.
摘要翻译：用于腐蚀性环境（例如氧化介质或高温气态或液体腐蚀剂，特别是熔融盐如冰晶石）的碳质或其他材料的主体涂覆有保护性表面涂层，其将身体的抗性提高到氧化或腐蚀，并且还可以增强体的导电性和/或其电化学活性。保护涂层从含有反应物或非反应物质的胶体浆料，或反应物和非反应物质的混合物，特别是含有碳化硅和硅化钼或碳化硅和氮化硅的混合物的混合物中施加在一层或多层中，其中当由于微溶液反应和/或烧结而将体被加热到足够的高温反应烧结体而没有反应形成保护涂层时。

7. 发明授权

US5362366A Anode-cathode arrangement for aluminum production cells 失效
标题翻译：铝生产电池的阳极 - 阴极布置
公开(公告)号：US5362366A
公开(公告)日：1994-11-08
申请号：US874752
申请日：1992-04-27
申请人： Vittorio de Nora , Jainagesh A. Sekhar
发明人： Vittorio de Nora , Jainagesh A. Sekhar
IPC分类号： C25C3/08 , C25C3/06
CPC分类号： C25C3/08
摘要： A novel anode-cathode arrangement for the electrowinning of aluminum from alumina dissolved in molten sales, consisting of an anode-cathode double-polar electrode assembly unit or a continuous double polar assembly in which the anode and cathode are bound together and their interelectrode gap is maintained substantially constant by connections made of materials of high electrical, chemical, and mechanical resistance. Novel, multi-double-polar cells for the electrowinning of aluminum contain two or more of such anode-cathode double-polar electrode assembly units. This arrangement permits the removal of reimmersion into any of the anode-cathode double-polar electrode assembly units during operation of the multi-double-polar cell whenever the anode and or the cathode or any part of the electrode unit needs reconditioning for efficient cell operation.
摘要翻译：一种新型的阳极 - 阴极装置，用于从熔融销售中溶解氧化铝的电解冶金，由阳极 - 阴极双极电极组件单元或其中阳极和阴极结合在一起的连续双极组件及其电极间间隙组成通过高电气，化学和机械阻力的材料制成的接头保持基本恒定。用于铝的电解提取的新型多双极细胞包含两个或更多个这样的阳极 - 阴极双极电极组件单元。这种布置允许在阳极和/或阴极或电极单元的任何部分需要重新调整以有效地进行电池操作的情况下，在多双极电池的操作期间去除任何阳极 - 阴极双极电极组件单元。

8. 发明授权

US06455107B1 Prevention of oxidation of carbonaceous and other materials at high temperatures 失效
标题翻译：防止高温下碳质材料和其他材料的氧化
公开(公告)号：US06455107B1
公开(公告)日：2002-09-24
申请号：US08640115
申请日：1996-04-30
申请人： Jainagesh A. Sekhar , Vittorio de Nora
发明人： Jainagesh A. Sekhar , Vittorio de Nora
IPC分类号： B05D136
CPC分类号： C04B41/507 , C04B41/5025 , C04B41/5062 , C04B41/52 , C04B41/87 , C04B41/89 , C25C3/08 , C25C3/085 , C25C3/125
摘要： A body of carbonaceous or other material for use in corrosive environments such as oxidising media or gaseous or liquid corrosive agents at elevated temperatures, in particular in molten salts such as cryolite, is coated with a protective surface coating which improves the resistance of the body to oxidation or corrosion and which may also enhance the bodies electrical conductivity and/or its electrochemical activity. The protective coating is applied in one or more layers from a colloidal slurry containing reactant or non-reactant substances, or a mixture of reactant and non-reactant substances, in particular mixtures containing silicon carbide and molybdenum silicide or silicon carbide and silicon nitride, which when the body is heated to a sufficient elevated temperature reaction sinter as a result of micropyretic reaction and/or sinter without reaction to form the protective coating.
摘要翻译：用于腐蚀性环境（例如氧化介质或高温下的气态或液体腐蚀剂，特别是熔融盐如冰晶石）的碳质材料或其他材料的主体涂覆有保护性表面涂层，其将身体的抗性提高氧化或腐蚀，并且还可以增强体的导电性和/或其电化学活性。保护涂层从含有反应物或非反应物质的胶体浆料，或反应物和非反应物质的混合物，特别是含有碳化硅和硅化钼或碳化硅和氮化硅的混合物的混合物中施加在一层或多层中，其中当由于微溶液反应和/或烧结而将体被加热到足够的高温反应烧结体而没有反应形成保护涂层时。

9. 发明授权

US6103091A Production of bodies of refractory borides for use in aluminum electrowinning cells 失效
$Production of bodies of refractory borides for use in aluminum electrowinning cells$
标题翻译：生产用于铝电解池的难熔硼化物体
公开(公告)号：US6103091A
公开(公告)日：2000-08-15
申请号：US29485
申请日：1998-06-19
申请人： Jainagesh A. Sekhar , Jean-Jacques Duruz , Vittorio de Nora
发明人： Jainagesh A. Sekhar , Jean-Jacques Duruz , Vittorio de Nora
IPC分类号： C04B35/58 , C04B41/51 , C04B41/88 , C25C3/08 , C25B9/00 , C25C7/00 , C25D17/00
CPC分类号： C04B35/58064 , C04B35/58071 , C04B35/58078 , C04B41/009 , C04B41/5155 , C04B41/88 , C25C3/08
摘要： A method of producing a self-sustaining body of refractory boride from the group consisting of the borides of titanium, chromium, vanadium, zirconium, hafnium, niobium, tantalum, molybdenum and cerium. This body includes a refractory boride and a dried colloid from the group consisting of colloidal alumina, silica, yttria, ceria, thoria, magnesia, lithia, monoaluminium phosphate and cerium acetate and is obtained from a slurry of the refractory boride in one or more of said colloids by casting the slurry on a porous plaster layer, and drying the cast slurry by draining through the plaster, or by pressing/drying. Subsequently, the dried body is subjected to heat treatment to bond the refractory boride in the dried colloid. The bodies are useful as components of aluminium electrowinning cells.
摘要翻译： PCT No.PCT / IB96 / 00823 Sec。 371日期：1998年6月19日 102（e）1998年6月19日PCT PCT 1996年8月21日PCT公布。出版物WO97 / 08114 日期1997年3月6日由钛，铬，钒，锆，铪，铌，钽，钼和铈组成的组中生产耐火硼化物的自持体的方法。本体包括耐火硼化物和由胶态氧化铝，二氧化硅，氧化钇，二氧化铈，氧化钍，氧化镁，锂二氧化铈，氧化铝，磷酸铝和乙酸铈组成的组中的干燥胶体，并由耐火硼化物的浆料在一种或多种所述胶体通过将浆料浇注在多孔石膏层上，并通过排出石膏或通过压制/干燥来干燥铸浆。随后，将干燥的物体进行热处理以将耐火硼化物与干燥的胶体结合。这些物体可用作铝电解池的组分。

10. 发明授权

US5728466A Hard and abrasion resistant surfaces protecting cathode blocks of aluminium electrowinning cells 失效
标题翻译：坚硬耐磨表面，保护铝电解池的阴极块
公开(公告)号：US5728466A
公开(公告)日：1998-03-17
申请号：US511907
申请日：1995-08-07
申请人： Jainagesh A. Sekhar , Vittorio de Nora
发明人： Jainagesh A. Sekhar , Vittorio de Nora
IPC分类号： C04B41/50 , C04B41/52 , C04B41/87 , C04B41/89 , C25C3/08 , B32B18/00
CPC分类号： C04B41/009 , C04B41/507 , C04B41/52 , C04B41/87 , C04B41/89 , C25C3/08 , C04B2111/00879 , Y10T428/252 , Y10T428/30
摘要： A cathode block of a cell for the electrowinning of aluminium comprises a carbon body having a hard and abrasion-resistant surface obtained by heating an applied layer of particulate refractory hard metal boride with a bonding material which when heated reacts with the refractory hard metal boride and with carbon. In particular a slurry of particulate refractory boride in colloidal alumina is dried and heated under an inert or a reducing atmosphere, formed by a bed of carbon powder, and reacted to form at least one stable compound between aluminium derived from colloidal alumina; boron and titanium derived from the titanium diboride; and carbon from the reducing atmosphere.
摘要翻译：用于电解电解铝的电池的阴极块包括具有硬和耐磨表面的碳体，所述碳体通过用加热与难熔硬金属硼化物反应的接合材料加热颗粒耐火硬金属硼化物的施加层而获得，与碳。特别地，将粒状耐磨硼化物在胶态氧化铝中的浆料在惰性或还原气氛下干燥并加热，由碳粉末床形成，并在由胶体氧化铝得到的铝之间反应形成至少一种稳定的化合物; 衍生自二硼化钛的硼和钛; 和来自还原气氛的碳。

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