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公开(公告)号：US07799189B2
公开(公告)日：2010-09-21
申请号：US11671392
申请日：2007-02-05
IPC分类号： C25B11/02
CPC分类号： C25C3/125
摘要： An electrolysis cell (10) contains a number of carbon anodes (12) having top, bottom and side surfaces, operating in molten electrolyte (17) in an aluminum electrolysis cell (10), where gas bubbles (28) are generated at the anode surfaces and where alumina particles (20) are added to the top of the molten electrolyte, where the carbon anodes (12) have one inward slot (21) passing through the carbon anode (12) along the longitudinal axis 40 of the carbon anode and also passing through only one front surface (25) of the carbon anode, where the height (32) of the slot (21) is from about 45% to 80% of the anodes thickness and the slotted front surfaces (25) are disposed toward the center of the electrolysis cell so that generated gas bubbles (28) are directed to the alumina particles.
摘要翻译： 电解槽（10）包含在铝电解槽（10）中在熔融电解质（17）中操作的顶部，底部和侧面上的多个碳阳极（12），其中在阳极处产生气泡（28） 表面，并且其中氧化铝颗粒（20）被添加到熔融电解质的顶部，其中碳阳极（12）具有沿着碳阳极的纵向轴线40穿过碳阳极（12）的一个向内槽（21），以及 还通过碳阳极的仅一个前表面（25），其中槽（21）的高度（32）为阳极厚度的约45％至80％，并且开槽的前表面（25）朝向 电解池的中心，使得产生的气泡（28）被引导到氧化铝颗粒。
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2.发明授权Method for electrolytically producing aluminum using closed end slotted carbon anodes 有权使用封闭端开槽碳阳极电解生产铝的方法公开(公告)号：US07820027B2
公开(公告)日：2010-10-26
申请号：US11671386
申请日：2007-02-05
IPC分类号： C25C3/12
CPC分类号： C25C3/125
摘要： An electrolysis cell (10) contains a number of carbon anodes (12) having top, bottom and side surfaces, operating in molten electrolyte (17) in an aluminum electrolysis cell (10), where gas bubbles (28) are generated at the anode surfaces and where alumina particles (20) are added to the top of the molten electrolyte, where the carbon anodes (12) have at least two inward slots (21) passing through the carbon anode (12) along the longitudinal axis 40 of the carbon anode and also passing through only one front surface (25) of the carbon anode, where the height (32) of the slots (21) is from about 45% to 80% of the anodes thickness and the slotted front surfaces (25) are disposed toward the center of the electrolysis cell so that generated gas bubbles (28) are directed to the alumina particles.
摘要翻译： 电解槽（10）包含在铝电解槽（10）中在熔融电解质（17）中操作的顶部，底部和侧面上的多个碳阳极（12），其中在阳极处产生气泡（28） 表面，并且其中氧化铝颗粒（20）被添加到熔融电解质的顶部，其中碳阳极（12）具有沿着碳的纵轴40穿过碳阳极（12）的至少两个向内狭槽（21） 阳极并且也仅穿过碳阳极的一个前表面（25），其中槽（21）的高度（32）为阳极厚度的大约45％至80％，并且开槽的前表面（25）为 设置在电解池的中心，使得产生的气泡（28）被引导到氧化铝颗粒。
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公开(公告)号：US07179353B2
公开(公告)日：2007-02-20
申请号：US10799036
申请日：2004-03-11
IPC分类号： C25C3/12
CPC分类号： C25C3/125
摘要： An electrolysis cell (10) contains a number of carbon anodes (12) having top, bottom and side surfaces, operating in molten electrolyte (17) in an aluminum electrolysis cell (10), where gas bubbles (28) are generated at the anode surfaces and where alumina particles (20) are added to the top of the molten electrolyte, where the carbon anodes (12) have at least two inward slots (21) passing through the carbon anode (12) along the longitudinal axis 40 of the carbon anode and also passing through only one front surface (25) of the carbon anode, where the height (32) of the slots (21) is from about 45% to 80% of the anodes thickness and the slotted front surfaces (25) are disposed toward the center of the electrolysis cell so that generated gas bubbles (28) are directed to the alumina particles.
摘要翻译： 电解槽（10）包含在铝电解槽（10）中在熔融电解质（17）中操作的顶部，底部和侧面上的多个碳阳极（12），其中在阳极处产生气泡（28） 表面，并且其中氧化铝颗粒（20）被添加到熔融电解质的顶部，其中碳阳极（12）具有沿着碳的纵轴40穿过碳阳极（12）的至少两个向内狭槽（21） 阳极并且也仅穿过碳阳极的一个前表面（25），其中槽（21）的高度（32）为阳极厚度的大约45％至80％，并且开槽的前表面（25）为 设置在电解池的中心，使得产生的气泡（28）被引导到氧化铝颗粒。
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公开(公告)号：US06942381B2
公开(公告)日：2005-09-13
申请号：US10672462
申请日：2003-09-25
摘要： A method and apparatus for accurately measuring superheat, bath ratio and alumina concentration in an aluminum smelting bath. In one embodiment, a reusable probe determines the bath temperature and bath sample superheat. In other embodiments, the probe also determines bath composition including bath cryolite ratio and alumina concentration.
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5.发明授权
公开(公告)号：US5865980A
公开(公告)日：1999-02-02
申请号：US883061
申请日：1997-06-26
摘要： An inert electrode material is made by reacting at an elevated temperature a mixture preferably comprising iron oxide, at least one other metal oxide, copper and silver. The reaction produces a material having ceramic phase portions and alloy phase portions, wherein the alloy phase portions have copper-rich interior portions and silver-rich exterior portions. Inert anodes made with a reaction mixture containing copper and silver have lower wear rates than inert anodes made with copper and no silver.
摘要翻译： 通过在升高的温度下使优选包含氧化铁，至少一种其它金属氧化物，铜和银的混合物反应制成惰性电极材料。 反应产生具有陶瓷相部分和合金相部分的材料，其中合金相部分具有富含铜的内部部分和富含银的外部部分。 用含有铜和银的反应混合物制成的惰性阳极比用铜和不含银制成的惰性阳极具有较低的磨损率。
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公开(公告)号：US06332969B1
公开(公告)日：2001-12-25
申请号：US09621728
申请日：2000-07-24
IPC分类号： C25B102
CPC分类号： C25C3/12 , B22F1/025 , B22F2998/00 , C22C29/12 , C25C7/02 , C25C7/025 , C22C1/0466 , C22C1/0491
摘要： A cermet composite material is made by treating at an elevated temperature a mixture comprising a compound of iron and a compound of at least one other metal, together with an alloy or mixture of copper and a noble metal. The alloy or mixture preferably comprises particles having an interior portion containing more copper than noble metal and an exterior portion containing more noble metal than copper. The noble metal is preferably silver. The cermet composite material preferably includes alloy phase portions and a ceramic phase portion. At least part of the ceramic phase portion preferably has a spinel structure.
摘要翻译： 通过在升高的温度下处理包含铁化合物和至少一种其它金属的化合物的混合物以及铜和贵金属的合金或混合物来制备金属陶瓷复合材料。 合金或混合物优选包括具有比贵金属含有更多铜的内部部分和比铜更贵贵金属的外部部分的颗粒。 贵金属优选为银。 金属陶瓷复合材料优选包括合金相部分和陶瓷相部分。 陶瓷相部分的至少一部分优选具有尖晶石结构。
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公开(公告)号：US6126799A
公开(公告)日：2000-10-03
申请号：US241518
申请日：1999-02-01
摘要： A cermet composite material is made by treating at an elevated temperature a mixture comprising a compound of iron and a compound of at least one other metal, together with an alloy or mixture of copper and a noble metal. The alloy or mixture preferably comprises particles having an interior portion containing more copper than noble metal and an exterior portion containing more noble metal than copper. The noble metal is preferably silver. The cermet composite material preferably includes alloy phase portions and a ceramic phase portion. At least part of the ceramic phase portion preferably has a spinel structure.
摘要翻译： 通过在升高的温度下处理包含铁化合物和至少一种其它金属的化合物的混合物以及铜和贵金属的合金或混合物来制备金属陶瓷复合材料。 合金或混合物优选包括具有比贵金属含有更多铜的内部部分和比铜更贵贵金属的外部部分的颗粒。 贵金属优选为银。 金属陶瓷复合材料优选包括合金相部分和陶瓷相部分。 陶瓷相部分的至少一部分优选具有尖晶石结构。
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8.发明授权Reduced temperature aluminum production in an electrolytic cell having an inert anode 失效在具有惰性阳极的电解池中降低铝的生产
公开(公告)号：US6030518A
公开(公告)日：2000-02-29
申请号：US926530
申请日：1997-09-10
CPC分类号： C25C7/025 , C25C3/06 , C25C3/12 , B22F2998/00
摘要： Aluminum is produced by electrolytic reduction of alumina in a cell having a cathode, an inert anode and a molten salt bath containing metal fluorides and alumina. The inert anode preferably contains copper, silver and oxides of iron and nickel. Reducing the molten salt bath temperature to about 900-950.degree. C. lowers corrosion on the inert anode constituents.
摘要翻译： 通过在具有阴极，惰性阳极和含有金属氟化物和氧化铝的熔融盐浴的电池中电解还原氧化铝来制造铝。 惰性阳极优选含有铜，银和铁和镍的氧化物。 将熔盐浴温度降低至约900-950℃，降低惰性阳极组分的腐蚀。
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公开(公告)号：US5938914A
公开(公告)日：1999-08-17
申请号：US934252
申请日：1997-09-19
摘要： An electrolytic cell for reduction of a metal oxide to a metal and oxygen has an inert anode and an upwardly angled roof covering the inert mode. The angled roof diverts oxygen bubbles into an upcomer channel, thereby agitating a molten salt bath in the upcomer channel and improving dissolution of a metal oxide in the molten salt bath. The molten salt bath has a lower velocity adjacent the inert anode in order to minimize corrosion by substances in the bath. A particularly preferred cell produces aluminum by electrolysis of alumina in a molten salt bath containing aluminum fluoride and sodium fluoride.
摘要翻译： 用于将金属氧化物还原成金属和氧的电解池具有惰性阳极和覆盖惰性模式的向上倾斜的屋顶。 倾斜的屋顶将氧气泡转移到升液通道中，从而搅动升高通道中的熔融盐浴，并改善金属氧化物在熔融盐浴中的溶解。 熔融盐浴在惰性阳极附近具有较低的速度，以便最小化浴中物质的腐蚀。 特别优选的电池通过在含有氟化铝和氟化钠的熔融盐浴中电解氧化铝来生产铝。
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