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Matches 201 - 250 out of 1,544

Document Document Title
WO/2004/113230
The present invention relates to a zero-waste process for extraction of alumina from différent types of bauxite ores and red mud residues and of titanium dioxide from ilmenite. Iron oxide is first reduced to metallic iron above the melt...  
WO/2004/111281
A degasser (10) for molten metal with a microporous plate (11). The microporous plate has at least one internal passageway (13) and an interface tube (12) attached to the microporous plate in flow communication with the internal passagew...  
WO/2004/108974
The invention relates to a method for reducing harmful compounds in the waste gases of a burner-fired melting furnace (1). According to said method, melting charge (2) is fed into the furnace (1) and is impinged upon by heat there by mea...  
WO/2004/108975
The invention relates to a method for reducing the amount of noxious compounds in the waste gases of a burner-heated smelting furnace (1) during which material (2) to be molten is introduced into the furnace (1) and is heated therein by ...  
WO/2004/101830
Processing apparatus and methods for introducing material into a molten metal are provided. The material is introduced through a tube, which leads into the molten metal flow between the exit from a chamber and the entry back into a chamb...  
WO/2004/099453
The invention relates to a method for the treatment of aluminum in a furnace, wherein a material containing aluminum and optionally one or several salts is introduced into the furnace, the material is melted by adding heat with the aid o...  
WO/2004/099769
A device is provided for measuring metal inclusions comprising a receptacle for holding a sample of molten metal, with this receptacle having insulated side walls and a bottom wall provided with an exit opening. A ceramic filter element ...  
WO/2004/094679
Recycle friendly aluminum alloys are described which are variants of AA 3000 and AA 5000 series alloys containing higher than usual amounts of silicon and iron. The alloys contain in percentages by weight, more than 0.6 - 2.0% silicon, 0...  
WO/2004/090177
This invention relates to a method for preventing the ignition of molten reactive metal by contacting the molten metal with a gaseous mixture comprising a fluorocarbon selected from the group consisting of perfluoroketones, hydrofluoroke...  
WO/2004/085686
The invention relates to a method of recovering a metal from a mixture comprising more than one metal. According to the invention, the methods comprises the steps of (a) melting the mixture to produce a melt (1); (b) passing the melt ove...  
WO/2004/086279
This invention relates to a method for generating pollution credits while processing molten magnesium, aluminum, lithium, and alloys of such metals by contacting the molten metal or alloy with a gaseous mixture comprising a fluorocarbon ...  
WO/2004/083469
In a process for the melting of an aluminum charge in a melting furnace, the A1 charge contains organic materials or an organic charge is provided into the furnace. The combustion of the organic charge is carried out with an oxyfuel burn...  
WO/2004/083470
A raw material for aluminum refining, characterized in that it comprises a peritectic element forming a peritectoid with aluminum and boron, wherein it contains boron in an amount being excessive by 5 to 80 mass ppm to a total chemical e...  
WO/2004/081246
A hollow partition wall (4) is employed to feed carbon material to an underflow of a carbothermic reduction furnace used to make aluminum. The partition wall (4) divides a low temperature reaction zone (2) where aluminum oxide is reacted...  
WO/2004/079024
The invention relates to an aluminium dross cooling method and installation, in which the dross is compacted in a mould. According to the invention, the dross is vibrated during the compaction operation. For said purpose, the compaction ...  
WO/2004/074523
A metal melting closed furnace which includes a main chamber (22), a circulation well (28) connected to the main chamber (22) by a communications passageway (32) and a vortex well (84) having an exit outlet for molten metal into the main...  
WO/2004/067210
A method of dispensing or pouring molten metal, e.g., aluminum, from a container or vessel, the flow rate controlled to minimize splashing of the molten aluminum exiting the container, the method comprising the steps of providing a conta...  
WO/2004/063653
Plant for the melting of primary and secondary aluminium, provided with a rotating furnace, internally equipped with a spiral element (11), that realizes the melting of the aluminium not using a salty bath, in association with a channel ...  
WO/2004/057045
The invention relates to a rotary device for dispersing a gas in a molten metal. The device comprises a hollow shaft (20) at one end of which is attached a rotor (22). The rotor (22) has a roof (24) and a base (26) which are spaced apart...  
WO/2004/035238
A method of treating a spent potliner after use in an aluminium smelting process, the method comprising crushing and classifying the spent potliner, placing the classified and crushed spent potliner in a furnace at a temperature greater ...  
WO/2004/031274
A process of recovery of useful constituents from multi-layered laminated fragments of packaging industrial refuse in sheet, tube or shredded form from each other as separate constituents comprising treating the comminuted fragments with...  
WO/2004/031451
A cathode block for aluminum refining containing a calcined coke in a proportion of 15 to 100 wt %, characterized in that the calcined coke is prepared by mixing a heavy oil having a content of quinoline insoluble components of 10 to 25 ...  
WO/2004/029307
The invention relates to a rotor, a device, and a method for introducing fluids into a molten bath. Molten baths are often degassed by introducing a liquid. In known trough degassers, rotors are arranged in the flowing melt and are used ...  
WO/2004/020679
The invention relates to a device (8) which is used to inject a treatment gas into a molten metal contained in a tank (1) and which is designed to be fixed in one of the walls of said tank. The inventive device comprises at least one inj...  
WO/2004/015152
The invention relates to the use of at least one hydride forming agent introduced into the melted mass of a light metal or a light metal alloy, for binding the hydrogen contained in said melted mass.  
WO/2004/005559
The invention relates to a method for fractional crystallisation of an at most partially solidified molten metal, in which a layer of at most partially solidified molten metal having an upper surface und a lower surface is divided into a...  
WO/2004/005558
The invention relates to a method for fractional crystallisation of an at most partially solidified molten metal. According to the invention a layer of at most partially solidified molten metal to be crystallised is cooled by a layer of ...  
WO/2004/001078
Method and device for purifying a stream of molten metal. A conical chamber that acts a cyclone has been defined in a block of refractory material. The stream to be purified is introduced between the two ends of the conical chamber havin...  
WO/2003/106715
An apparatus for dispensing a molten material from a reservoir of molten material (102) includes a dispensing chamber (100) in communication with the reservoir (102) and a first valve (104) adapted to regulate communication of the dispen...  
WO/2003/106908
A flow inducement or stirring apparatus (500) includes electromagnetic induction apparatus in the form of a generally rectangular box (501) connected to an inclined end wall (502) of a cradle or port (503) of the apparatus 500, being gen...  
WO/2003/104502
A treatment apparatus (10) includes a liquid reactant metal containment vessel (11) for containing a first liquid reactant metal and isolating the reactant metal from the atmosphere. A release chamber (14) is adapted to receive the first...  
WO/2003/095686
The invention relates to a device (1) for treating a liquid metal flow. The inventive device comprises a treating ladle (2) consisting of: means of connecting (11, 12, 13, 14) to at least one liquid metal feed chute (15) and to at least ...  
WO/2003/090954
An apparatus for transferring molten metal from a melting furnace (400) to a casting furnace is provided. A sensing and control system (460) for the transfer of molten metal from a transfer furnace (200) to a casting furnace (400) is als...  
WO/2003/078067
The invention relates to a method for processing a heap of debris, mill scale or similar material, particularly wastes containing aluminum such as cuttings, which is/are fouled by oil and accumulates during industrial processes. Accordin...  
WO/2003/066913
A method of heating molten aluminium flowing in a heated trough member comprising the steps of providing a source of molten aluminium and providing a trough member comprised of a first side (14) and a second side (18), the first and the ...  
WO/2003/057930
A method for filtering molten aluminum containing suspended particles using an improved filtration media, the method comprising the steps of providing a source of molten aluminum and providing media having a coating thereon, the coating ...  
WO/2003/056044
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/2003/042418
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/2003/038138
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/2003/033750
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/2003/031662
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...  
WO/2003/031663
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/2003/023078
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/2003/020991
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...  
WO/2002/103067
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...  
WO/2002/100576
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/2002/101102
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/2002/096533
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/2002/096830
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/2002/096831
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...  

Matches 201 - 250 out of 1,544