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1. 发明申请

WO2008103912A8 INSTALLATION AND METHOD FOR IN-LINE MOLTEN METAL PROCESSING USING SALT REACTANT IN A DEEP BOX DEGASSER 审中-公开
标题翻译：在深层隔膜中使用盐类反应剂进行在线金属加工的安装和方法
公开(公告)号：WO2008103912A8
公开(公告)日：2008-11-27
申请号：PCT/US2008054730
申请日：2008-02-22
申请人： ALCOA INC , CHESONIS DAWN CORLEEN , DEYOUNG DAVID H
发明人： CHESONIS DAWN CORLEEN , DEYOUNG DAVID H
IPC分类号： C22B9/10 , C22B9/05 , C22B21/06
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 (51) 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 impeller (42).The salt flux may be metered into the inert gas stream at a controlled rate. A salt injector flux tank (44) may be retrofitted to current rotary degassing equipments without requiring a specialized rotor (50) 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（51）的直列深箱处理其中，代替气态Cl2，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一起注入到熔融金属中（通常为氩气）通过现有的脱气机叶轮（42）。盐流可以以受控的速率计量加入到惰性气体流中。盐喷射器通量罐（44）可以改装到当前旋转脱气设备，而不需要专门的转子（50）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。

2. 发明申请

WO2008103912A1 INSTALLATION AND METHOD FOR IN-LINE MOLTEN METAL PROCESSING USING SALT REACTANT IN A DEEP BOX DEGASSER 审中-公开
标题翻译：在深层隔膜中使用盐类反应剂进行在线金属加工的安装和方法
公开(公告)号：WO2008103912A1
公开(公告)日：2008-08-28
申请号：PCT/US2008/054730
申请日：2008-02-22
申请人： ALCOA INC. , CHESONIS, Dawn Corleen , DEYOUNG, David H.
发明人： CHESONIS, Dawn Corleen , DEYOUNG, David H.
IPC分类号： C22B9/10 , C22B9/05 , C22B21/06
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 (51) wherein, instead of gaseous C12, a solid salt reactant containing a halide salt (e.g., MgC12) as one of its components may be injected into the" molten metal along with an inert gas (typically argon) through the existing degasser impeller (42).The salt flux may be metered into the inert gas stream at a controlled rate. A salt injector flux tank (44) may be retrofitted to current rotary degassing equipments without requiring a specialized rotor (50) 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 C12 during molten metal degassing.
摘要翻译：熔融金属（51）的直列深箱处理其中代替气态C12，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物质一起注入“熔融金属气体（通常为氩气）通过现有的脱气机叶轮（42）。盐流可以以受控的速率计量加入到惰性气体流中。盐喷射器通量罐（44）可以改装到当前的旋转脱气设备，而不需要专门的转子（50）设计或改变脱气装置设计使用卤化物盐基固体助焊剂可以实现碱，碱土金属和夹杂物去除的优点，而无需工业卫生，环境和与储存和在熔融金属脱气过程中使用气态和危险的C12。

3. 发明申请

WO2010074845A1 DECARBONIZATION PROCESS FOR CARBOTHERMICALLY PRODUCED ALUMINUM 审中-公开
标题翻译：用于制造碳酸氢盐的脱碳工艺
公开(公告)号：WO2010074845A1
公开(公告)日：2010-07-01
申请号：PCT/US2009/064897
申请日：2009-11-18
申请人： ALCOA INC. , ELKEM AS , BRUNO, Marshall, J. , CARKIN, Gerald, E. , DEYOUNG, David, H. , DUNLAP, Ronald, M.
发明人： BRUNO, Marshall, J. , CARKIN, Gerald, E. , DEYOUNG, David, H. , DUNLAP, Ronald, M.
IPC分类号： C22B5/06 , C22B21/02 , C22B21/06
CPC分类号： C22B21/02 , C22B5/06 , C22B21/064
摘要： A method of recovering aluminum is provided. An alloy melt having Al 4 C 3 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 Al 4 C 3 precipitates by flotation, resulting in two phases with the Al 4 C 3 precipitates being the upper layer and the decarbonized aluminum being the lower layer. The aluminum is then recovered from the Al 4 C 3 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℃的温度下向合金熔体中加入足够量的细分散气体。至约900℃。回收的铝是脱碳的碳热还原铝，其中添加足够量的细分散气体的步骤通过浮选来实现铝从Al 4 C 3析出物的分离，导致两相，其中Al 4 C 3沉淀物是上层，脱碳铝是下层。然后通过倾析从Al4C3沉淀物中回收铝。

4. 发明申请

WO2008103802A1 METHODS, SYSTEMS AND APPARATUS FOR PRODUCING ALUMINUM USING CARBON DIOXIDE AS A REACTIVE COVER GAS 审中-公开
标题翻译：使用二氧化碳作为反应性气体来生产铝的方法，系统和装置
公开(公告)号：WO2008103802A1
公开(公告)日：2008-08-28
申请号：PCT/US2008/054539
申请日：2008-02-21
申请人： ALCOA INC. , DEYOUNG, David H. , WILLIAMS, Edward M. , KOLEK, Paula L. , WIESERMAN, Larry F.
发明人： DEYOUNG, David H. , WILLIAMS, Edward M. , KOLEK, Paula L. , WIESERMAN, Larry F.
IPC分类号： C22B21/06
CPC分类号： C22B21/064 , C22B9/006 , C22B21/06
摘要： Methods, apparatus and systems for protecting molten aluminum-magnesium alloys from oxidation during production processes are provided. The methods generally involve passing a carbon dioxide containing cover gas comprising at least about 5 volumetric percent up to 100 volumetric percent carbon dioxide over one or more surfaces of the molten aluminum-magnesium alloy, thereby forming a protective barrier on the surface of the molten aluminum-magnesium alloy.
摘要翻译：提供了在生产过程中保护熔融铝镁合金免于氧化的方法，装置和系统。所述方法通常涉及在熔融的铝 - 镁合金的一个或多个表面上通过包含至少约5体积％至100体积％二氧化碳的含二氧化碳的覆盖气体，从而在熔融铝的表面上形成保护屏障镁合金。

5. 发明申请

WO0230822A3 ALUMINUM ALLOYS HAVING IMPROVED CAST SURFACE QUALITY 审中-公开
标题翻译：具有改进的铸件表面质量的铝合金
公开(公告)号：WO0230822A3
公开(公告)日：2002-09-06
申请号：PCT/US0142260
申请日：2001-09-21
申请人： ALCOA INC , DEYOUNG DAVID H , MCGINNIS WILLIAM F , RICHTER RAY T , WIESNER JEFFREY J
发明人： DEYOUNG DAVID H , MCGINNIS WILLIAM F , RICHTER RAY T , WIESNER JEFFREY J
IPC分类号： C22C1/02 , C22C1/03 , C22C21/00
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 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：使用任何常用技术将基本上不用铸造铝合金的熔融铝合金添加钙。

6. 发明申请

WO1994018349A1 METHOD AND APPARATUS FOR SEPARATING AND REMOVING LIQUID PARTICLES FROM MOLTEN METAL 审中-公开
标题翻译：用于分离和去除来自金属的液体颗粒的方法和装置
公开(公告)号：WO1994018349A1
公开(公告)日：1994-08-18
申请号：PCT/US1994001363
申请日：1994-02-07
申请人： ALUMINUM COMPANY OF AMERICA , DEYOUNG, David, H. , APELIAN, Diran , MUTHARASAN, Rajakkannu
发明人： ALUMINUM COMPANY OF AMERICA
IPC分类号： C22B09/02
CPC分类号： C22B21/066 , B01D17/0208 , B01D17/045 , B01D17/10 , C22B9/023 , Y02P10/234
摘要： Molten metal (11) containing suspended liquid particles is passed preferably generally upwardly through a porous media (24) so constructed and arranged such that the movement of the molten metal (11) therethrough renders the suspended liquid particles gravity separable. The gravity separable liquid particles (34) 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：含有悬浮液体颗粒的熔融金属（11）优选通常向上通过如此构造和布置的多孔介质（24），使得熔融金属（11）的移动通过其使悬浮液体颗粒重力分离。重力可分离液体颗粒（34）向上升起或向下沉降，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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