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1. 发明申请

WO1996002681A1 RECOVERY OF NON-FERROUS METALS FROM DROSS 审中-公开
标题翻译：从废料回收非金属金属
公开(公告)号：WO1996002681A1
公开(公告)日：1996-02-01
申请号：PCT/CA1995000416
申请日：1995-07-14
申请人： ALCAN INTERNATIONAL LIMITED
发明人： ALCAN INTERNATIONAL LIMITED , DUBE, Ghyslain , LITALIEN, Marko , PELLETIER, Roger , WANG, Zhou
IPC分类号： C22B21/00
CPC分类号： C22B7/04 , C22B9/226 , C22B21/0092 , Y02P10/218
摘要： The invention relates to a process of recovering a non-ferrous metal from a dross containing the same. The process involves introducing into a furnace (preferably a rotary furnace) the dross and a coalescing aid for the metal, heating the dross and fluoride compound to a treatment temperature above the melting point of the metal, using a heating device which substantially maintains a non-oxidizing atmosphere in the furnace, agitating the dross until it reaches the treatment temperature, removing the molten metal thereby separated from a solid dross residue and removing the solid dross residue from the furnace. The coalescing aid is fluoride salt or mixture that remains substantially solid at the treatment temperature, for example, cryolite, recovered cryolite, AlF3 or NaF, or a mixture thereof. The salt or mixture remains in the dross during the process and does not make the dross become sticky, thus avoiding agglomeration of the dross particles. The use of the fluoride improves the rate of recovery of the metal content of the dross without producing environmental difficulties either during the heating operation or during the disposal or use of the dross residue.
摘要翻译：本发明涉及从含有该金属的浮渣回收有色金属的方法。该方法包括向熔炉（优选旋转炉）中引入浮渣和用于金属的聚结助剂，使用加热装置将浮渣和氟化物加热到高于金属熔点的处理温度，该加热装置基本上保持非金属，在炉中搅拌氧化气氛，直至达到处理温度，除去熔融金属，从固体渣渣中分离，并从炉中除去固体渣渣。聚结助剂是在处理温度下保持基本上固体的氟化物盐或混合物，例如冰晶石，回收的冰晶石，AlF 3或NaF，或其混合物。在该过程中，盐或混合物保留在渣滓中，并且不会使浮渣变粘，从而避免浮渣颗粒的团聚。氟化物的使用提高了浮渣的金属含量的回收速率，而不会在加热操作期间或在处理或使用渣渣期间产生环境困难。

2. 发明申请

WO1995015404A1 PROCESS FOR COMBINED DECOATING AND MELTING OF ALUMINUM SCRAP CONTAMINATED WITH ORGANICS 审中-公开
标题翻译：用有机物污染的铝屑的组合分解和熔融工艺
公开(公告)号：WO1995015404A1
公开(公告)日：1995-06-08
申请号：PCT/CA1994000652
申请日：1994-11-25
申请人： ALCAN INTERNATIONAL LIMITED
发明人： ALCAN INTERNATIONAL LIMITED , TREMBLAY, François , TURCOTTE, Gilles, R. , LAVOIE, Serge , DUBE, Ghyslain , TREMBLAY, Sylvain, P. , FORTIN, Jean-Yves
IPC分类号： C22B21/00
CPC分类号： C22B9/16 , C22B7/004 , C22B21/0007 , Y02P10/218
摘要： A method of recovering an aluminum-containing metal (16) from a scrap material (14, 14') containing the metal and an organic contaminant, such as paper, plastics, lacquer, paint or oil. The method involves creating a fluidized bed (10) of solid particles, maintaining a zone of the bed at a temperature in the range of the melting point of the metal to 1000 DEG C, introducing the scrap material into the fluidized zone to cause decoating of the metal within a time in the range of 1 to 40 seconds, at least partially melting the metal, and removing the metal material from the fluidized bed. In this way, decoating and at least partial melting is achieved essentially at the same time for improved efficiency. Metals of different melting point may also be separated from each other by providing a series of temperature zones in the fluidized bed (or in a series of fluidized beds) of progressively increasing temperature. If a limited amount of oxygen is introduced into the bed, a combustible gas is produced that can be burned to extract its energy or can be stored for later use.
摘要翻译：一种从含有金属和有机污染物如纸，塑料，漆，油漆或油的废料（14,14'）回收含铝金属（16）的方法。该方法包括产生固体颗粒的流化床（10），将床的区域保持在金属熔点范围内的温度至1000℃，将废料引入流化区以引起脱色金属在1至40秒的范围内的时间内，至少部分地熔化金属，并从流化床除去金属材料。以这种方式，脱蜡和至少部分熔融基本上在同时实现以提高效率。通过在逐渐升高的温度的流化床（或一系列流化床）中提供一系列温度区，也可以将不同熔点的金属彼此分离。如果将有限量的氧气引入床中，则产生可燃烧的气体，其可以被燃烧以提取其能量，或者可以储存以备后用。

3. 发明申请

WO1991001950A1 PROCESS FOR PRODUCING MINERAL FIBERS INCORPORATING AN ALUMINA-CONTAINING RESIDUE FROM A METAL MELTING OPERATION AND FIBERS SO PRODUCED 审中-公开
标题翻译：生产含金属熔化作业中含有氧化铝残留物的矿物纤维的生产方法和生产的纤维
公开(公告)号：WO1991001950A1
公开(公告)日：1991-02-21
申请号：PCT/CA1990000235
申请日：1990-07-26
申请人： ALCAN INTERNATIONAL LIMITED
发明人： ALCAN INTERNATIONAL LIMITED , DUBE, Ghyslain , CHAUVETTE, Gaetan
IPC分类号： C03C13/06
CPC分类号： C03C13/06
摘要： A process for producing mineral fibers and the fibers thus produced are disclosed. The process involves forming a melt comprising an alumina-containing residue from a metal melting operation and one or more mineral raw materials suitable for forming mineral fibers, dividing the melt into streams and cooling the streams to produce the fibers. The residue from the metal melting operation acts as an inexpensive, substantially non-polluting source of alumina which can be used to increase the alumina content of the fibers and thus improve their properties, or which can be used as a replacement for more expensive or less desirable sources of alumina.

4. 发明授权

EP0832304B1 METHOD AND APPARATUS FOR CONTINUOUS IN-LINE GAS TREATMENT OF MOLTEN METALS 失效
标题翻译：方法和装置熔融金属KONTINNIERLICHEN在线气体处理
公开(公告)号：EP0832304B1
公开(公告)日：1999-01-27
申请号：EP95926343.5
申请日：1995-07-28
申请人： ALCAN INTERNATIONAL LIMITED
发明人： WAITE, Peter, D. , LAVOIE, Serge, Eugene , DUBE, Ghyslain , DUMONT, Robert
IPC分类号： C22B9/05 , C22B21/06
CPC分类号： C22B9/05 , C21C7/072 , C22B21/064
摘要： A method of and apparatus for treating molten metal to achieve effective removal of such unwanted inclusions as gases, alkali metals, entrained solids, and the like. The method comprises continuously introducing molten metal into a container forming a trough or trough section, such as the trough provided between a melting furnace and a casting machine, providing at least one mechanically movable gas dispenser (11) submerged within the metal (15) in the container and introducing a gas into the metal adjacent to a gas disperser (14) in a part of the trough forming a treatment zone such that the gas is broken into smaller bubbles by the gas dispenser (11) and dispersed through the treatment zone. The trough or trough section is such that it exhibits a metal holdup of less than 50 %.

5. 发明公开

EP0540562A1 DECONTAMINATION AND/OR SURFACE TREATMENT OF METALS 失效
标题翻译：族的金属净化和/或表面处理。
公开(公告)号：EP0540562A1
公开(公告)日：1993-05-12
申请号：EP91912916.0
申请日：1991-07-18
申请人： ALCAN INTERNATIONAL LIMITED
发明人： DUBE, Ghyslain , TREMBLAY, François
IPC分类号： C22B7 , C22B1 , C22B21 , C23G5
CPC分类号： C23G5/00 , C22B1/005 , C22B21/0007 , Y02P10/214 , Y02P10/218 , Y02P10/226
摘要： L'invention décrit un procédé de nettoyage de fragments métalliques (particulièrement d'aluminium ou d'alliage d'aluminium) viciés par des matières organiques. L'inconvénient de tels procédés est qu'une oxydation excessive du métal peut avoir lieu pendant le processus de nettoyage, provoquant une réduction des taux de récupération. Le procédé comprend le réchauffement des fragments métalliques dans un lit fluidifié de particules solides fluidifiées par un gaz de fluidification, à une température de nettoyage suffisamment élevée pour consumer la matière organique mais située au-dessous du point de fusion du métal. L'étape de réchauffement s'effectue en présence d'un matériau de protection qui protège l'aluminium ou l'alliage d'aluminium contre une oxydation importante tandis que les fragments sont maintenus dans le lit à la température de nettoyage. Les matériaux de protection préférés comprennent des composés organiques et inorganiques contenant du fluor, particulièrement AlF3. Le procédé est particulièrement efficace pour le traitement des alliages d'aluminium contenant du magnésium, particulièrement sujets à oxydation. On peut soumettre les fragments métalliques nettoyés de cette façon, à des procédés traditionnels de récupération de métal, par exemple fusion métallique, et obtenir des taux de récupération de métal élevés. Le procédé décrit par l'invention peut également s'utiliser pour protéger le métal (particulièrement l'aluminium et ses alliages) contre une oxydation excessive pendant des traitements thermiques autres que le nettoyage. L'invention décrit également le traitement de briquettes de fragments comprimés ne nécessitant ni d'être protégées contre l'oxydation ni d'être broyées ou fragmentées au préalable.

6. 发明公开

EP1356129A2 TREATMENT OF MOLTEN METAL WITH A PARTICULATE AGENT USING A MIXING IMPELLER 审中-公开
标题翻译：用颗粒额外资金使用一个ROTATIONSRÜHRERSMELT金属处理
公开(公告)号：EP1356129A2
公开(公告)日：2003-10-29
申请号：EP02710713.5
申请日：2002-01-22
申请人： ALCAN INTERNATIONAL LIMITED
发明人： BILODEAU, Jean-Francois , DUBE, Ghyslain , DUPUIS, Claude , FAFARD, Sebastien
IPC分类号： C22B9/10 , C22B9/05 , C22B21/06 , F27D23/04
CPC分类号： F27D27/00 , C22B9/103 , C22B21/062 , C22B21/064 , F27D2003/185
摘要： A process is described for treating molten metal with a particulate treating agent. A melt of a metal, e.g. aluminum, is provided in a treatment vessel such as a ladle and a mixing impeller is positioned substantially below the surface of the molten metal. The impeller comprises a plate with a series of spaced blades extending from the surface of the plate. This impeller is adapted to provide high shear mixing with minimum vortex. While rotating the impeller on a substantially vertical axis, particulate treating agent is fed by way of an injection tube below the surface of the molten metal and into the region between the axis and periphery of the impeller. This causes a high shearing action in the region of the blades whereby the treating agent is quickly broken down into finely divided droplets and which are circulated within the molten metal.

7. 发明授权

EP0556343B1 JET FLOW DEVICE FOR INJECTING GAS INTO MOLTEN METAL 失效
标题翻译： JETFLUSSVORRICHTUNG用于在金属熔体发泡气体。
公开(公告)号：EP0556343B1
公开(公告)日：1995-01-25
申请号：EP92902600.3
申请日：1991-11-04
申请人： ALCAN INTERNATIONAL LIMITED
发明人： TREMBLAY, François , DUBE, Ghyslain
IPC分类号： C22B9/05 , C22B21/00 , C22B21/06 , C22B9/10 , B01F3/04 , F27D23/04
CPC分类号： B01F5/0413 , B01F3/04099 , B01F3/04248 , B01F3/0876 , C22B9/02 , C22B9/05 , C22B21/0084 , C22B21/064 , F27D3/16 , Y02P10/234
摘要： A device is described for injecting gas into molten metal, e.g. molten aluminum, in a furnace chamber. It comprises: (a) a stirring apparatus having a reservoir chamber separate from the furnace chamber, a connector portion with an orifice connecting the interior of the furnace and the reservoir for the passage of the molten metal between them through the connector portion, vacuum/pressure generating means connected to the reservoir chamber interior for alternatively and successively producing therein a vacuum for drawing molten metal into its interior from the furnace chamber and a positive pressure for expelling the molten metal therefrom into the furnace chamber through the orifice in the form of a high velocity stirring jet, and (b) gas injector means adapted to inject gas into the high velocity stirring jet such that the gas is broken down into a large number of small bubbles which are circulated throughout the furnace chamber with the stirring jet.

8. 发明公开

EP0485399A1 PROCESS FOR PRODUCING MINERAL FIBERS INCORPORATING AN ALUMINA-CONTAINING RESIDUE FROM A METAL MELTING OPERATION AND FIBERS SO PRODUCED 失效
标题翻译：用于生产矿物纤维后的金属FUSION铝REST遏制和由此生产的纤维。
公开(公告)号：EP0485399A1
公开(公告)日：1992-05-20
申请号：EP90910503.0
申请日：1990-07-26
申请人： ALCAN INTERNATIONAL LIMITED
发明人： DUBE, Ghyslain , CHAUVETTE, Gaetan
IPC分类号： C03C6 , C03C13
CPC分类号： C03C13/06
摘要： On décrit un procédé de fabrication de fibres minérales ainsi que les fibres ainsi produites. Le procédé consiste à former un bain de fusion qui comprend un résidu à teneur en alumine provenant d'une opération de fusion de métal, ainsi qu'une ou plusieurs matières premières minérales adaptées à former des fibres minérales, à diviser le bain en coulées et à refroidir les coulées afin de produire les fibres. Le résidu provenant de la fusion de métal sert de source d'alumine peu coûteuse et sensiblement non polluante qui peut être utilisée afin d'augmenter la teneur en alumine des fibres et ainsi d'améliorer leurs caractéristiques, ou bien qui peut être utilisée en tant que remplacement pour des sources d'alumine plus coûteuses ou moins appropriées.

9. 发明公开

EP0991487A1 METHOD AND APPARATUS FOR CONTROLLING THE TEMPERATURE OF AN INGOT DURING CASTING, PARTICULARLY AT START-UP 无效
标题翻译：铸造，尤其是在铸造启动时的方法和装置块的表面温度控制
公开(公告)号：EP0991487A1
公开(公告)日：2000-04-12
申请号：EP98930572.7
申请日：1998-06-12
申请人： ALCAN INTERNATIONAL LIMITED
发明人： CARON, Yves , DUBE, Ghyslain , MULLER, Friedrich , AUGER, Marc
IPC分类号： B22D11/22 , B22D11/16 , G01K7/08
CPC分类号： G01K13/06 , B22D11/049 , B22D11/16 , B22D11/225 , G01K7/08
摘要： A method of controlling a temperature of a surface of a direct chill cast ingot cast in an open-ended mould provided with a bottom block during early stages of casting as the ingot emerges from the open-ended mould. The method involves the steps of directing a flow of a coolant onto at least one surface of an ingot emerging from an open-ended mould to impinge on the surface at a normal impingement point and to cool the surface, measuring a surface temperature on the emerging ingot at at least one measurement location which is at a predetermined position close enough to the normal impingement point to be affected by the secondary coolant, to generate a measured surface temperature, determining the displacement of the bottom block of the casting machine from its initial position at the start of the cast, corresponding to each of the surface temperature measurement, and using the measured surface temperature to control a casting variable and thereby to control the temperature of the surface. The invention also relates to apparatus for carrying out the above method and to a method of measuring the surface temperature.

10. 发明公开

EP0771364A1 RECOVERY OF NON-FERROUS METALS FROM DROSS 无效
标题翻译：回收有色金属FROM糟粕
公开(公告)号：EP0771364A1
公开(公告)日：1997-05-07
申请号：EP95924146.0
申请日：1995-07-14
申请人： ALCAN INTERNATIONAL LIMITED
发明人： DUBE, Ghyslain , LITALIEN, Marko , PELLETIER, Roger , WANG, Zhou
IPC分类号： C22B7 , C22B9 , C22B21
CPC分类号： C22B7/04 , C22B9/226 , C22B21/0092 , Y02P10/218
摘要： The invention relates to a process of recovering a non-ferrous metal from a dross containing the same. The process involves introducing into a furnace (preferably a rotary furnace) the dross and a coalescing aid for the metal, heating the dross and fluoride compound to a treatment temperature above the melting point of the metal, using a heating device which substantially maintains a non-oxidizing atmosphere in the furnace, agitating the dross until it reaches the treatment temperature, removing the molten metal thereby separated from a solid dross residue and removing the solid dross residue from the furnace. The coalescing aid is fluoride salt or mixture that remains substantially solid at the treatment temperature, for example, cryolite, recovered cryolite, AlF3 or NaF, or a mixture thereof. The salt or mixture remains in the dross during the process and does not make the dross become sticky, thus avoiding agglomeration of the dross particles. The use of the fluoride improves the rate of recovery of the metal content of the dross without producing environmental difficulties either during the heating operation or during the disposal or use of the dross residue.

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