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公开(公告)号：US06334978B1
公开(公告)日：2002-01-01
申请号：US09351841
申请日：1999-07-13
申请人： David H. DeYoung , Mark J. Dunlay
发明人： David H. DeYoung , Mark J. Dunlay
IPC分类号： C22C2100
CPC分类号： C22C21/00 , B22D21/007
摘要： The present invention is directed to the additions of alkaline earth metals, in particular strontium and optionally combinations with other metals, to aluminum and aluminum alloys to improve the appearance of, eliminate surface imperfections, and reduce the surface oxidation of the as-cast ingots.
摘要翻译： 本发明涉及向铝和铝合金添加碱土金属，特别是锶和任何其它金属的组合，以改善铸造锭的外观，消除表面缺陷，并减少表面氧化。
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2.发明授权Method for separation and removal of suspended liquid particles from molten metal and associated apparatus 失效从熔融金属和相关设备中分离和除去悬浮液体颗粒的方法
公开(公告)号：US5336295A
公开(公告)日：1994-08-09
申请号：US14623
申请日：1993-02-08
CPC分类号： C22B21/066 , B01D17/0208 , C22B9/023 , Y02P10/234
摘要： Molten metal containing suspended liquid particles is passed preferably generally upwardly through a porous media so constructed and arranged such that the movement of the molten metal therethrough renders the suspended liquid particles gravity separable. The gravity separable liquid particles rise upwardly or settle downwardly so as to be removable from said molten metal for subsequent removal therefrom. An associated apparatus is also provided.
摘要翻译： 包含悬浮液体颗粒的熔融金属优选通常向上通过如此构造和布置的多孔介质，使得熔融金属的移动通过其使悬浮液体颗粒重力分离。 重力可分离的液体颗粒向上升或者向下沉降，从而可从所述熔融金属中取出以便随后从其中取出。 还提供了一种相关联的装置。
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3.发明授权System and method for in-line molten metal processing using salt reactant in a deep box degasser 有权在深箱式脱气机中使用盐反应物进行在线熔融金属加工的系统和方法公开(公告)号：US07785394B2
公开(公告)日：2010-08-31
申请号：US12035848
申请日：2008-02-22
CPC分类号： C22B9/103 , C22B9/05 , C22B9/055 , C22B21/062 , C22B21/064 , C22B21/066
摘要： An in-line deep box treatment of molten metal wherein, instead of gaseous Cl2, a solid salt reactant containing a halide salt (e.g., MgCl2) as one of its components may be injected into the molten metal along with an inert gas (typically argon) through the existing degasser impellor. The salt flux may be metered into the inert gas stream at a controlled rate. A salt injector flux tank may be retrofitted to current rotary degassing equipments without requiring a specialized rotor design or changes in the degasser unit design. Using the halide salt-based solid flux, the benefits of alkali, alkaline earth, and inclusion removal may be achieved without the industrial hygiene, environmental, and safety issues associated with storing and using the gaseous and hazardous Cl2 during molten metal degassing.
摘要翻译： 熔融金属的在线深箱处理，其中代替气态Cl 2，含有作为其组分之一的卤化物盐（例如，MgCl 2）的固体盐反应物可以与惰性气体（典型地为氩气）一起注入熔融金属 ）通过现有的脱气机。 可以以受控的速率将盐通量计量加入到惰性气体流中。 盐喷射器通量罐可以改装到当前的旋转脱气设备，而不需要专门的转子设计或脱气器单元设计的改变。 使用基于卤化物盐的固体助熔剂，可以实现碱金属，碱土金属和夹杂物去除的优点，而不会在熔融金属脱气过程中储存和使用气态和危险的Cl2相关的工业卫生，环境和安全问题。
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公开(公告)号：US20100147113A1
公开(公告)日：2010-06-17
申请号：US12334687
申请日：2008-12-15
IPC分类号： C22B21/02
CPC分类号： C22B21/02 , C22B5/06 , C22B21/064
摘要： A method of recovering aluminum is provided. An alloy melt having Al4C3 and aluminum is provided. This mixture is cooled and then a sufficient amount of a finely dispersed gas is added to the alloy melt at a temperature of about 700° C. to about 900° C. The aluminum recovered is a decarbonized carbothermically produced aluminum where the step of adding a sufficient amount of the finely dispersed gas effects separation of the aluminum from the Al4C3 precipitates by flotation, resulting in two phases with the Al4C3 precipitates being the upper layer and the decarbonized aluminum being the lower layer. The aluminum is then recovered from the Al4C3 precipitates through decanting.
摘要翻译： 提供铝的回收方法。 提供具有Al 4 C 3和铝的合金熔体。 将该混合物冷却，然后在约700℃至约900℃的温度下，向合金熔体中加入足够量的细分散气体。回收的铝是脱碳碳氢化生产的铝，其中添加 足够量的精细分散的气体通过浮选来实现铝与Al 4 C 3沉淀物的分离，导致Al 4 C 3沉淀物为上层和脱碳铝为下层的两相。 然后通过倾析从Al 4 C 3沉淀物中回收铝。
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5.发明授权
公开(公告)号：US4542704A
公开(公告)日：1985-09-24
申请号：US681672
申请日：1984-12-14
申请人： Melvin H. Brown , David H. DeYoung
发明人： Melvin H. Brown , David H. DeYoung
摘要： A three-stage combustion process is disclosed for burning a fuel containing sulfur characterized by low sulfur emission and good ash removal. The process comprises mixing the sulfur containing fuel with an additive capable of reacting with sulfur; burning the mixture in a first combustion stage with less than 75% theoretical air and at a temperature below the melting point of the ash but sufficiently high to cause reaction between the additive and any sulfur in the fuel to facilitate removal of the sulfur compounds formed; removing at least a portion of the sulfur compounds formed in the first stage; passing combustible gases from the first stage to a second stage; burning the gases in the second stage with less than 100% theoretical air at a temperature above the melting point of the ash to form a liquid slag which is removable from the second stage; and burning combustible gases from the second stage in a third stage with an excess of air to ensure complete combustion of the fuel.
摘要翻译： 公开了一种三级燃烧过程，用于燃烧含硫的燃料，其特征在于低硫排放和良好的除灰。 该方法包括将含硫燃料与能够与硫反应的添加剂混合; 在低于75％的理论空气和低于灰分熔点的温度的第一燃烧阶段中燃烧混合物，但足够高以使添加剂与燃料中任何硫之间的反应促进所形成的硫化合物的除去; 去除在第一阶段中形成的至少一部分硫化合物; 将可燃气体从第一阶段传递到第二阶段; 在高于灰分熔点的温度下以小于100％的理论空气燃烧第二阶段的气体以形成可从第二阶段移除的液态炉渣; 并在第三级燃烧具有过量空气的第二级的可燃气体，以确保燃料的完全燃烧。
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公开(公告)号：US06412164B1
公开(公告)日：2002-07-02
申请号：US09685283
申请日：2000-10-10
IPC分类号： B22D700
CPC分类号： C22C1/03 , C22C1/026 , C22C21/00 , Y10T29/49988
摘要： Aluminum alloy compositions are disclosed, which include small amounts of calcium that result in improved surface properties of the cast aluminum. The calcium, and up to 0.25% grain refiners, are added along with alkaline earth metals, transition metals and/or rare earth metals to the aluminum alloy as a melt. The addition results in improved appearance, substantially reduced surface imperfections and reduced surface oxidation in cast ingot aluminum and aluminum alloys. The addition of small amounts of these additives, surprisingly were found to substantially eliminate vertical folds, pits and ingot cracking in more than one ingot casting technique. The additions also improved the appearance of the ingots, including reflectance. As a result, the ingots could be reduced or worked essentially right out of the casting without first conditioning the surface by, for example, scalping. Also disclosed is a method of improving the surface properties and preventing surface imperfections and cracking of cast aluminum alloys. The method includes the steps of adding calcium to a molten aluminum alloy that is essentially free of Be and casting the aluminum alloy using any commonly used technique.
摘要翻译： 公开了铝合金组合物，其包括导致改善铸铝表面性能的少量钙。 钙和高达0.25％的晶粒细化剂与碱土金属，过渡金属和/或稀土金属一起作为熔体与铝合金一起加入。 添加结果导致铸造铝和铝合金的外观改善，表面缺陷显着减少和表面氧化降低。 发现少量这些添加剂令人惊奇地发现，在多于一种铸锭技术中基本上消除了垂直折痕，凹坑和锭裂纹。 添加物还改善了锭的外观，包括反射率。 结果，可以通过例如剥皮来首先对表面进行调理，从而可以将铸锭基本上正确地压出或加工成铸件。 还公开了改进表面性能并防止铸铝合金的表面缺陷和开裂的方法。 该方法包括以下步骤：向基本上不含Be的熔融铝合金添加钙，并使用任何常用技术浇铸铝合金。
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公开(公告)号：US5427602A
公开(公告)日：1995-06-27
申请号：US287165
申请日：1994-08-08
CPC分类号： C22B9/023 , C22B21/066 , Y02P10/234
摘要： Molten metal containing suspended liquid and solid particles is passed preferably generally upwardly through a porous media so constructed and arranged such that the movement of the molten metal therethrough renders the suspended liquid particles gravity separable. The gravity separable liquid particles rise upwardly or settle downwardly so as to be removable from said molten metal for subsequent removal therefrom. An associated apparatus is also provided.
摘要翻译： 包含悬浮液体和固体颗粒的熔融金属优选通常向上通过如此构造和布置的多孔介质，使得熔融金属的移动通过其使悬浮液体颗粒重力分离。 重力可分离的液体颗粒向上升或者向下沉降，从而可从所述熔融金属中取出以便随后从其中取出。 还提供了一种相关联的装置。
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公开(公告)号：US4988417A
公开(公告)日：1991-01-29
申请号：US291527
申请日：1988-12-29
申请人： David H. DeYoung
发明人： David H. DeYoung
摘要： A method of electrolytically producing lithium includes providing an electrolytic cell having an anode compartment and a cathode compartment. The compartments are separated by a porous electrically nonconductive membrane which will be wetted by the electrolyte and permit migration of lithium ions therethrough. Lithium carbonate is introduced into the anode compartment and produces delivery of lithium ions from the anode compartment to the cathode compartment where such ions are converted into lithium metal. The membrane is preferably a non-glass oxide membrane such as a magnesium oxide membrane. The membrane serves to resist undesired backflow of the lithium from the cathode compartment through the membrane into the anode compartment. Undesired communication between the anode and cathode is further resisted by separating the air spaces thereover. This may be accomplished by applying an inert gas purge and a positive pressure in the cathode compartment.The apparatus preferably includes an electrolytic cell with an anode compartment and a cathode compartment and an electrically nonconductive membrane which is wettable by the electrolyte and will permit migration of the lithium ion therethrough while resisting reverse passage of lithium therethrough.
摘要翻译： 电解生产锂的方法包括提供具有阳极室和阴极室的电解池。 隔室由多孔非导电膜隔开，其将被电解质润湿并允许锂离子通过其迁移。 将碳酸锂引入阳极室，并产生从阳极室到阴极室的锂离子输送，其中这些离子转化为锂金属。 膜优选为非玻璃氧化物膜，例如氧化镁膜。 膜用于防止锂从阴极室通过膜进入阳极室的不期望的回流。 阳极和阴极之间的不期望的通信通过分离其上的空气空间进一步抵抗。 这可以通过在阴极室中施加惰性气体吹扫和正压来实现。 该装置优选地包括具有阳极室和阴极室的电解池和可被电解质润湿的不导电膜，并且允许锂离子通过其中而阻止锂从其中反向通过。
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公开(公告)号：US4500406A
公开(公告)日：1985-02-19
申请号：US560602
申请日：1983-12-12
申请人： John D. Weyand , Robert W. Woods , David H. DeYoung , Siba P. Ray
发明人： John D. Weyand , Robert W. Woods , David H. DeYoung , Siba P. Ray
CPC分类号： C25C7/025 , C25C3/12 , B29C2043/3628 , Y10T428/12021
摘要： An inert electrode connection is disclosed wherein a layer of inert electrode material is bonded to a layer of conductive material by providing at least one intermediate layer of material therebetween comprising a predetermined ratio of inert material to conductive material. In a preferred embodiment, the connection is formed by placing in a die a layer of powdered inert material, at least one layer of a mixture of powdered inert material and conductive material, and a layer of powdered conductive material. The connection is then formed by pressing the material at 15,000-20,000 psi to form a powder compact and then densifying the powder compact in an inert or reducing atmosphere at a temperature of 1200.degree.-1500.degree. C.
摘要翻译： 公开了一种惰性电极连接，其中惰性电极材料层通过在其间提供至少一个中间材料层与惰性材料与导电材料的比例相结合而与导电材料层接合。 在优选实施例中，连接是通过将粉末状惰性材料层，至少一层粉状惰性材料和导电材料的混合物层和粉末状导电材料层放置在模具中而形成的。 然后通过在15,000-20,000磅/平方英寸压制材料形成连接以形成粉末压块，然后在惰性或还原性气氛中在1200-150℃的温度下致密化粉末压块。
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公开(公告)号：US09068246B2
公开(公告)日：2015-06-30
申请号：US12334687
申请日：2008-12-15
CPC分类号： C22B21/02 , C22B5/06 , C22B21/064
摘要： A method of recovering aluminum is provided. An alloy melt having Al4C3 and aluminum is provided. This mixture is cooled and then a sufficient amount of a finely dispersed gas is added to the alloy melt at a temperature of about 700° C. to about 900° C. The aluminum recovered is a decarbonized carbothermically produced aluminum where the step of adding a sufficient amount of the finely dispersed gas effects separation of the aluminum from the Al4C3 precipitates by flotation, resulting in two phases with the Al4C3 precipitates being the upper layer and the decarbonized aluminum being the lower layer. The aluminum is then recovered from the Al4C3 precipitates through decanting.
摘要翻译： 提供铝的回收方法。 提供具有Al 4 C 3和铝的合金熔体。 将该混合物冷却，然后在约700℃至约900℃的温度下，向合金熔体中加入足够量的细分散气体。回收的铝是脱碳碳氢化生产的铝，其中添加 足够量的精细分散的气体通过浮选来实现铝与Al 4 C 3沉淀物的分离，导致Al 4 C 3沉淀物为上层和脱碳铝为下层的两相。 然后通过倾析从Al4C3沉淀物中回收铝。
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