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Matches 301 - 350 out of 3,212

Document Document Title
WO/2003/056044A1
The invention concerns an alumnium melting method, which consists in introducing solid aluminium into a furnace (2), melting the aluminium to form an aluminium bath (4), detecting variations in carbon monoxide (CO) and/or hydrogen (H2) c...  
WO/2003/042418A1
The invention can be used for producing an aluminium-scandium foundry alloy in order to modify aluminium alloys. The inventive method involving an alluminothermal reduction in molten metal halides, is carried out by means of the reductio...  
WO/2003/038138A1
A refining process for non−ferrous melt and equipment thereof. The process, including an adsorbing purification by letting a purified gas pass through the non−ferrous melt, is characterised in that, a vaccume is applied above the non...  
WO/2003/033750A1
The invention relates to a grain refining agent for cast aluminum products containing titanium, comprising particles formed of a matrix of a ductile material, in which are uniformly dispersed boron particles having an average particle si...  
WO/2003/031663A1
The invention relates to a method for controlling the proportion of aluminum crystals in a mixture of molten aluminum alloy and aluminum crystals. According to the invention, the electrical resistance of the mixture is determined with th...  
WO/2003/031662A1
Process and apparatus for the treatment of contaminated fumes from a furnace for melting contaminated scrap metal, in particular remelting and recycling of waste aluminium metal, the furnace including at least one melting chamber (1) wit...  
WO2002075001A3
A method for reducing metal oxides in a shaft furnace. A charge of metal oxide, e.g. iron ore or agglomerates, and a reductant is reacted in the furnace to produce a primary metal of the metal oxide and an additional secondary metal such...  
WO/2003/023078A1
A metal melting closed furnace (10) which includes a main chamber (26), a circulation well (28) connected to the main chamber (26) by a communications passageway and a vortex well (84) having an exit outlet for molten metal into the main...  
WO/2003/020991A1
Method for the purification of an aluminium alloy containing an alloying element wherein the aluminium alloy is subjected to a fractional crystallisation process wherein at least the aluminium alloy is separated into a product stream hav...  
WO2002042502A8
The present invention refers to a method and respective apparatus for the recovery of the free metal present in hot dross which is produced when non-ferrous metals are processed at temperatures above their melting point. The method consi...  
WO2002097143A3
Rotary furnace vessel for metallurgical processes, comprising a shell which on its interior surface is covered with a refractory lining based on high purity alumina, spinel, or a combination thereof, characterised in that at least half o...  
WO2002096533A8
According to the present invention there is provided a ceramic foam filter for molten metal filtration comprising a preferably substantially flat inlet portion, an intermediate portion and an outlet portion that incorporates an undulatin...  
WO2002042502B1
The present invention refers to a method and respective apparatus for the recovery of the free metal present in hot dross which is produced when non-ferrous metals are processed at temperatures above their melting point. The method consi...  
WO/2002/103067A2
In order to melt down aluminium in an oven, a method is known whereby a starting material containing aluminium is supplied to an oven, is pre-heated in an upper region of the oven by means of oven flue gas, and is then heated by means of...  
WO2002095078A8
The present invention relates to a process for carbothermic production of aluminum where a molten bath comprising aluminum carbide and aluminum oxide is produced in a low temperature compartment (20), and continuously flows into a high t...  
WO/2002/100576A1
A molten metal treatment furnace (10) with metal treatment and level control includes a heating chamber (12) for containing and heating a supply of molten metal (60), a pump (22) connected to the heating chamber (12), a molten metal trea...  
WO/2002/101102A1
The invention relates to a method of recycling metallic coated scrap pieces of which the liquidus temperature of the coating layer is lower than the solidus temperature of the core layer, such as brazing sheet scrap pieces, or metallic c...  
WO/2002/096533A1
According to the present invention there is provided a ceramic foam filter for molten metal filtration comprising a preferably substantially flat inlet portion, an intermediate portion and an outlet portion that incorporates an undulatin...  
WO/2002/097143A2
Rotary furnace vessel for metallurgical processes, comprising a shell which on its interior surface is covered with a refractory lining based on high purity alumina, spinel, or a combination thereof, characterised in that at least half o...  
WO/2002/096831A1
The invention concerns a method of coating a hydrophobic substrate (5,15,16) with a hydrophilic protective layer free of organic carbon (20A,20B,20C,20D) to protect the substrate (5,15,16) when used at high temperature. The method compri...  
WO/2002/096830A1
A method of bonding a protective coating on a wear-exposed surface of a carbon tile comprises: applying onto the wear-exposed surface of the carbon tile at least one layer of a slurry of particulate refractory material suspended in a col...  
WO/2002/095078A1
The present invention relates to a process for carbothermic production of aluminum where a molten bath comprising aluminum carbide and aluminum oxide is produced in a low temperature compartment (20), and continuously flows into a high t...  
WO/2002/095079A1
A method for aluminum recovery during the carbothermic production of aluminum in a smelting furnace (1, 2) is disclosed, where during carbothermic reduction of alumina, aluminum and aluminum suboxide vapors are produced (3, 4), which are...  
WO/2002/090605A1
A method for processing alumina-bearing ores such as bauxite to recover iron, aluminum, silicon and titanium metal values therefrom the method comprising the steps of adding the alumina-bearing ores to a digester containing an acid to pr...  
WO/2002/088400A1
An oxygen fueled combustion system includes a furnace (14) having at least one burner, an oxygen supply for supplying oxygen having a predetermined purity, and a carbon based fuel supply for supplying a carbon based fuel. The oxygen and ...  
WO2002057502A3
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 o...  
WO2002042502A3
The present invention to a method and respective apparatus for the recovery of the free metal present in hot dross which is produced when non-ferrous metals are processed at temperatures above their melting point. The method consists of ...  
WO/2002/076648A1
Application of a marking agent to metal stock, such as aluminum sheet, during and as a part of procedures for preparing the sheet for subsequent, scrap-generating manufacturing operations, to provide a detectable mark on pieces of manufa...  
WO/2002/075001A2
A method for reducing metal oxides in a shaft furnace. A charge of metal oxide, e.g. iron ore or agglomerates, and a reductant is reacted in the furnace to produce a primary metal of the metal oxide and an additional secondary metal such...  
WO2002020859A3
The invention relates to a method for the salt-free, non-oxidizing remelting of aluminum, the alloys thereof and aluminum scrap metals comprising possible impurities, such as inflammable oily substances, adhering inflammable or non-flamm...  
WO/2002/058863A1
A bottom heated holder furnace (10) for containing a supply of molten metal includes a storage vessel (20) having sidewalls (22) and a bottom wall (24) defining a molten metal receiving chamber (26). A furnace insulating layer (32) lines...  
WO/2002/058864A1
A bottom heated holder furnace (12) for containing a supply of molten metal includes a storage vessel (30) having sidewalls (32) and a bottom wall (34) defining a molten metal receiving chamber (36). A furnace insulating layer (42) lines...  
WO/2002/058862A2
The melter furnace includes a heating chamber (16), a pump chamber (18), a degassing chamber (20), and a filter chamber (22). The pump chamber 818) is located adjacent the heating chamber (16) and houses a molten metal pump (30). The deg...  
WO/2002/057502A2
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 o...  
WO/2002/042502A2
The present invention refers to a method and respective apparatus for the recovery of the free metal present in hot dross which is produced when non-ferrous metals are processed at temperatures above their melting point. The method consi...  
WO/2002/036493A1
A method of separating a red mud containing goethite which comprises: treating an alumina-containing ore containing an iron ingredient as goethite with an alkali solution with heating at 110 to 160°C to extract the alumina; subsequently...  
WO/2002/033137A1
The invention concerns a rotary injector for injecting gas (2) in a liquid metal (3), said injector comprising a drive shaft, stirring means, gas circulating means, gas (2) emitting means (8, 9). Said injector is characterised in that th...  
WO/2002/022900A2
An apparatus is provided for the treatment of molten metal, e.g. aluminum, with a particulate treatment agent and a gas. This includes a vessel for holding molten metal, a rotary device for breaking up particulate treatment agent and gas...  
WO/2002/020859A2
The invention relates to a method for the salt-free, non-oxidizing remelting of aluminum, the alloys thereof and aluminum scrap metals comprising possible impurities, such as inflammable oily substances, adhering inflammable or non-flamm...  
WO/2002/020860A1
A method for processing molten aluminum and a shaft (4) for use in the method for treating molten aluminum using an impeller (6) mounted on the shaft (4) comprising a protective refractory sleeve (7) resistant to attack by molten aluminu...  
WO2001083836A3
This invention relates to a method for preventing the ignition of molten magnesium by contacting the molten magnesium with a gaseous mixture comprising a fluorocarbon selected from the group consisting of perfluoroketones, hydrofluoroket...  
WO2001051676A3
The invention relates to a method for obtaining material from slag, whereby said material is obtained from slag which is still in liquid form. The invention also relates to a device for obtaining material from slag, which is provided wit...  
WO/2001/083836A2
This invention relates to a method for preventing the ignition of molten magnesium by contacting the molten magnesium with a gaseous mixture comprising a fluorocarbon selected from the group consisting of perfluoroketones, hydrofluoroket...  
WO/2001/079569A1
Methods for reducing inclusion content of sputter targets and targets so produced are disclosed. Inclusions (93) may be reduced by adding a small amount of Si to the molten A1 or molten A1 alloy followed by filtering of the molten metals...  
WO/2001/077396A1
A process for continuous vacuum purification of a molten metal, which comprises agitating a molten metal (1) in a melt agitation portion (B) in a vacuum treatment chamber having a reduced pressure and being preheated, to thereby vaporize...  
WO/2001/073142A1
A method for the agglomeration of alumina particles, the method comprising the steps of: grinding the alumina particles to a D�50? of less than about 12 $g(m)m; adding a quantity of a binding agent; andspray drying the mixture so forme...  
WO/2001/073143A1
A method for the agglomeration of alumina particles, the method comprising the steps of: adding a quantity of pseudo-boehmite to the alumina particles; and spray drying the mixture so formed to produce agglomerated granules.  
WO/2001/053547A1
The invention relates to a method for separating a fraction containing NE metals into the respective NE metals. Said fraction containing NE metals is treated with at least one solution of one or more inorganic and/or organic reagents so ...  
WO/2001/051676A2
The invention relates to a method for obtaining material from slag, whereby said material is obtained from slag which is still in liquid form. The invention also relates to a device for obtaining material from slag, which is provided wit...  
WO/2001/049796A1
A chemical delacquering composition, process and system for delacquering substrates such as aluminum scrap in which an aqueous solution containing at least one short-chain organic acid, preferably a mixture of two short-chain organic aci...  

Matches 301 - 350 out of 3,212