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41. 发明授权

US5332540A Refractory oxycompound/refractory hard metal composite 失效
$Refractory oxycompound/refractory hard metal composite$
标题翻译：耐火氧化合物/难熔硬金属复合材料
公开(公告)号：US5332540A
公开(公告)日：1994-07-26
申请号：US653545
申请日：1991-02-11
申请人： Jean-Jacques Duruz
发明人： Jean-Jacques Duruz
IPC分类号： C04B35/58 , C04B35/657 , C25C3/08 , C04B35/00
CPC分类号： C04B35/657 , Y10T428/25 , Y10T428/256
摘要： A composite material comprises a body, e.g., a slab, of a fused refractory oxycompound (3) having a multiplicity of discrete inclusions such as lumps (1) of an aluminum-wettable RHM in its surface. These bodies are especially useful as aluminum-wettable but non-current carrying components of aluminum reduction cells.
摘要翻译：复合材料包括具有多个离散夹杂物的熔融难熔氧化合物（3）的主体，例如板坯，其表面上具有铝可润湿的RHM的块体（1）。这些物体特别用作铝还原电池的铝可润湿但非电流承载组分。

42. 发明授权

US5004524A Refractory oxycompound/refractory hard metal composite and used in molten salt aluminum production cells 失效
$Refractory oxycompound/refractory hard metal composite and used in molten salt aluminum production cells$
标题翻译：耐火氧化合物/耐火硬金属复合材料，用于熔盐铝生产电池
公开(公告)号：US5004524A
公开(公告)日：1991-04-02
申请号：US350478
申请日：1989-04-28
申请人： Jean-Jacques Duruz
发明人： Jean-Jacques Duruz
IPC分类号： C04B35/58 , C04B35/657 , C25C3/08
CPC分类号： C04B35/657 , Y10T428/25 , Y10T428/256
摘要： A composite material comprises a body, e.g., a slab, of a fused refractory oxycompound (3) having a multiplicity of discrete inclusions such as lumps (1) of an aluminum-wettable RHM in its surface. These bodies are especially useful as aluminum-wettable but non-current carrying components of aluminum reduction cells.
摘要翻译：复合材料包括具有多个离散夹杂物的熔融难熔氧化合物（3）的主体，例如板坯，其表面上具有铝可润湿的RHM的块体（1）。这些物体特别用作铝还原电池的铝可润湿但非电流承载组分。 “

43. 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。

44. 发明授权

US4680094A Method for producing aluminum, aluminum production cell and anode for aluminum electrolysis 失效
标题翻译：生产铝，铝生产电池和铝电解阳极的方法
公开(公告)号：US4680094A
公开(公告)日：1987-07-14
申请号：US829436
申请日：1986-02-13
申请人： Jean-Jacques Duruz
发明人： Jean-Jacques Duruz
IPC分类号： C25C3/06 , C25C3/12 , C25C7/02
CPC分类号： C25C3/06 , C25C3/12
摘要： A method of producing aluminum by electrolysis of alumina which is dissolved in a molten cryolite bath is described which uses a dimensionally stable anode comprising a substrate composed of a conductive ceramic, a cermet, a metal, an alloy, an intermetallic compound and/or carbon and a coating thereon comprising a rare earth metal oxide or a rare earth metal oxyfluoride which is preserved by maintaining a concentration of the rare earth metal in the electrolyte. By adding to the bath a contamination inhibiting agent the contamination of the aluminum by substrate components due to corrosion of the substrate by the electrolyte contacting the substrate at imperfections of the coating may be inhibited. The contamination inhibiting agent may be a compound of an alkali or an alkaline earth metal, such as a fluoride, in particular LiF or MgF.sub.2.
摘要翻译：描述了通过电解溶解在熔融冰晶石浴中的氧化铝生产铝的方法，其使用尺寸稳定的阳极，其包括由导电陶瓷，金属陶瓷，金属，合金，金属间化合物和/或碳组成的基底以及其上包含稀土金属氧化物或稀土金属氟氧化物的涂层，其通过保持稀土金属在电解质中的浓度而被保存。通过向浴中添加污染抑制剂，可以抑制由于基底在由于涂层的缺陷而与基底接触而由于基底的腐蚀而被基底成分污染。污染抑制剂可以是碱金属或碱土金属的化合物，例如氟化物，特别是LiF或MgF 2。

45. 发明授权

US06783655B2 Slurry and method for producing refractory boride bodies and coatings for use in aluminium electrowinning cells 失效
$Slurry and method for producing refractory boride bodies and coatings for use in aluminium electrowinning cells$
标题翻译：用于生产用于铝电解池的耐火硼化物体和涂层的浆料和方法
公开(公告)号：US06783655B2
公开(公告)日：2004-08-31
申请号：US10183269
申请日：2002-06-27
申请人： Jainagesh Akkaraju Sekhar , Jean-Jacques Duruz , James Jenq Liu
发明人： Jainagesh Akkaraju Sekhar , Jean-Jacques Duruz , James Jenq Liu
IPC分类号： C25C306
CPC分类号： C04B35/58078 , C04B35/58064 , C04B35/58071 , C25C3/08
摘要： A refractory boride body or coating made of a boride of titanium, chromium, vanadium, ziconium, hafnium, niobium, tantalum, molybednum and cerium is produced from a slurry of the refractory boride or a precursor in a collidal carrier preferably composed of two more different grades of the same colloidal carrier selected from colloidal alumina, yttria, ceria, thoria, zirconia, magnesia, lithia, monoaluminum phosphate and cerium acetate. The slurry can also comprise an organic additive selected from polyvinyl alcohol; polyacrylic acid; hydroxyy propyl methyl cellulose; polythylene glycol; ethylene glycol, butyl benzyl phthalate; ammonium polymethacrylate and mixtures thereof. The retractory boride body or coated body is useful as a component of aluminum electrowinning cells.
摘要翻译：由耐火硼化物或前体的浆料中的钛，铬，钒，铌，铪，铌，铌，钽，钼和铈的硼化物制成的耐火硼化物体或涂层由优选由两种不同的选自胶体氧化铝，氧化钇，二氧化铈，氧化钍，氧化锆，氧化镁，锂化合物，磷酸一铝和乙酸铈的相同胶体载体的等级。浆料还可以包含选自聚乙烯醇的有机添加剂; 聚丙烯酸羟基丙基甲基纤维素; 聚乙二醇乙二醇，邻苯二甲酸丁基苄酯; 聚甲基丙烯酸铵及其混合物。牵引硼化物体或涂层体可用作铝电解槽的组分。

46. 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。

47. 发明授权

US5346608A Method for obtaining neodymium or neodymium-iron alloy by electrolysis of melts containing neodymium compounds 失效
标题翻译：通过电解含有钕化合物的熔体获得钕或钕 - 铁合金的方法
公开(公告)号：US5346608A
公开(公告)日：1994-09-13
申请号：US992691
申请日：1992-12-18
申请人： Ulrich Stroder , Jean-Jacques Duruz , Jean-Louis Jorda
发明人： Ulrich Stroder , Jean-Jacques Duruz , Jean-Louis Jorda
IPC分类号： C25C3/34 , C25D3/66
CPC分类号： C25C3/34
摘要： Neodymium and neodymium-iron alloys are obtained by electrolysis of a neodymium salt melt using magnetite as the anode material. The cathode is non-consumable or is made of iron to be consumed and form a neodymium-iron alloy. The electrolysis is preferably carried out under a protective atmosphere.
摘要翻译：通过使用磁铁矿作为阳极材料电解钕盐熔体来获得钕和钕 - 铁合金。阴极是非消耗性的，或由铁制成，被消耗并形成钕铁合金。电解优选在保护气氛下进行。

48. 发明授权

US4948676A Cermet material, cermet body and method of manufacture 失效
标题翻译：金属陶瓷材料，金属陶瓷体及其制造方法
公开(公告)号：US4948676A
公开(公告)日：1990-08-14
申请号：US332850
申请日：1989-02-15
申请人： Dominique Darracq , Jean-Jacques Duruz
发明人： Dominique Darracq , Jean-Jacques Duruz
IPC分类号： C04B35/65 , C22C1/05 , C22C1/10 , C22C29/12 , C25C3/12
CPC分类号： C22C29/12 , C04B35/65 , C22C1/058 , C25C3/12
摘要： The present invention provides a ceramic/metal composite material comprising cerium/aluminum mixed oxides as the ceramic phase and an alloy or intermetallic compond of cerium and at least one of aluminum, nickel, iron and cobalt as the metal phase. The ceramic phase may comprise interengaged crystal lattices of ceria and alumina. The material may be a self-sustaining body which may be used as substrate for a dimensionally stable anode in molten sale aluminum electrowinning cells, coated with a protective layer of cerium oxyfluoride in situ during electrolysis in molten cryolite containing cerium ions.

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