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WO/2007/061012A1 |
[PROBLEMS] To provide a highly purified metal obtained by direct reduction of a metal oxide, or a metal with peculiar properties; a process for producing the same; and a relevant production apparatus. [MEANS FOR SOLVING PROBLEMS] There i...
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WO/2007/053919A1 |
The combined leaching process comprises a dissolution process of the soluble constituents of an ore by means of the combined execution of two or more serial leaching phases with the first phase comprising atmospheric leaching (AL) and th...
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WO/2007/045570A1 |
The present invention relates to a method and an apparatus for forming flakes, especially metal flakes. The method comprises producing a heated stream of molten material, feeding the stream in a substantially vertically downward directio...
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WO/2007/045154A1 |
An alumina digesting apparatus, comprises the following devices: high pressure diaphragm pumps, double-pipe preheaters, pulse buffers, autoclaves with heating tube bundles, autoclaves and flash evaporators. The devices are connected succ...
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WO/2007/018243A1 |
An apparatus comprising at least vessel (2) for stocking conductive liquid (1) containing impurities; electromagnetic force generator (3) for generating electromagnetic force (F) capable of circulating the conductive liquid (1) in the co...
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WO/2007/012795A1 |
An extraction device is provided for use when extracting a ceramic foam filter, as used for example in the production and processing of aluminium. The extraction device includes an anchor device (1) having an anchor body (2) suitable for...
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WO/2007/012123A1 |
A carbothermic process for producing an aluminium carbide containing mass by injecting carbon and alumina into molten aluminium superheated above 14000C. The carbon reacts with molten aluminium to produce an aluminium carbide and alumina...
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WO/2007/008420A2 |
An apparatus for melting a metal load includes a furnace having a melting chamber with a hearth and a molten metal outlet. The apparatus further includes non-regenerative burners that are operative to fire into the melting chamber, and r...
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WO/2006/133889A2 |
The invention relates to a method for recycling aluminum scrap in a moving furnace, especially in a rotary kiln, the metal scrap being supplied to the furnace for melting in batches. In a first step, the aluminum scrap is supplied gradua...
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WO/2006/109810A1 |
The invention provides a sodium-free flux which is to be used in treating a molten aluminum alloy in a rotary flux injection/ degassing apparatus and which can inhibit the adhesion and build-up of unreacted flux and attain high deslaging...
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WO/2006/103085A1 |
The invention relates to a method for the continuous production of aluminium from alumina comprising a first step of converting alumina (AI2O3) into aluminiumsulphide (AI2S3) and a second step of separation of aluminium from aluminiumsul...
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WO/2006/089332A1 |
The invention concerns a method for melting down small-sized scrap aluminum. Following a thermal pre-treatment, the scrap aluminum to be melted down is subjected to a melting process in a hot gas stream. The invention aims at ensuring ad...
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WO/2006/072363A1 |
The invention relates to a hearth furnace comprising a burner for melting metals, especially non-ferrous metals, and an oxygen lance (25) for the post-oxidation of carbonisation gases.
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WO/2006/069486A1 |
The present invention discloses a process of aluminum smelting and the apparatus therefor. The process includes feeding the aluminum oxide into a sealed vacuum container which is then irradiated by ultraviolet radiation and provided with...
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WO/2006/056698A2 |
A sintered refractory block based on silicon carbide (SiC) with a silicon nitride (Si3N4) bond, for the manufacture of a aluminium electrolysis vessel, characterized in that it comprises, expressed in percentage by weight, at least 0.05 ...
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WO/2006/037999A2 |
A method for producing a metal, metalloid or alloy from a metal oxide, metalloid oxide or mixture of oxides of alloying elements forming a working electrode, by electrolysis in a fused salt or mixture of salts in the presence of a counte...
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WO/2006/010224A1 |
A process for producing a metal from the corresponding metal halide by reaction of the metal halide at elevated temperature in a reactor comprising a fluidised bed, the fluidised bed comprising seed particles of an inert material that ha...
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WO/2005/118893A2 |
The present invention relates to a method of recycling aluminum clad materials. In particular, the method relates to recycling clad materials such as brazing sheet comprised of two or more aluminum alloys, by selective melting of one of ...
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WO/2005/118891A2 |
Salt composition for protecting, refining and/or recycling molten magnesium or magnesium alloys, whereby the salt composition consists of halogenides of strontium, potassium, cesium or mixtures thereof.
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WO/2005/113844A1 |
A graphite electrode for an electrothermic reduction furnace in which aluminum is produced by carbothermic reduction of alumina is rendered substantially gasimpermeable. The graphite electrode is consumed during furnace operation and e...
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WO/2005/114079A2 |
An inner lining for the steel shell of a carbothermic reduction furnace for the production of alumina has a base layer of graphite and a coating layer of refractory material. The refractory material is corundum (AI2O3) bound by Sialon (S...
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WO/2005/112511A1 |
Graphite electrodes for the production of aluminum by carbothermic reduction of alumina are either submerged in the molten bath in the low temperature compartment or they are horizontally arranged in the side walls of the high temperatur...
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WO/2005/106054A1 |
The invention relates to a vessel (1) for preventing or minimizing the melting loss of, in particular, aluminum drosses and/or aluminum alloy drosses (K). To this end, the vessel (1) consists of a tank-like lower part (2) and of a cover ...
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WO/2005/103335A1 |
The present invention relates to a prefabricated refining device and a method for cleaning molten aluminium. The invention also relates to the process of fabrication of the device. The prefabricated refining device comprises a metallic t...
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WO/2005/103311A1 |
A method is described for reclaiming an Al-B4C composite scrap material. The method involves heating a liquid pool of molten aluminum while also pre-heating the scrap material. The scrap material is then added to the molten aluminum and ...
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WO/2005/095658A1 |
The invention relates to a method for the purification of a molten metal containing one or more foreign elements. The invention is characterised in that the molten metal is cooled to a eutectic temperature to simultaneously form purified...
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WO/2005/092563A2 |
The invention relates to non-corrosive auxiliary agents based on alkali fluoroaluminates, for soldering aluminium and for refining aluminium alloys, to their production and to their use. According to the invention, said non-corrosive aux...
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WO/2005/090620A1 |
The invention relates to a rotary drum-type kiln for remelting aluminium in a protection bath consisting of a salt melt. Said kiln comprises stirring bodies (3) which are fixed to the wall of the kiln (1) and project inwardly over the fi...
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WO2005047552B1 |
A dross compression apparatus (1) and method includes one or more air nozzles (22) for directing cooling air across the top of a compression head (2) for cooling the compression head. The air may be vented through air vents (18) in a wal...
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WO/2005/085732A1 |
The invention relates to a method for processing aluminium in a furnace consisting in introducing an aluminium-containing material and possibly one or several types of salt into the furnace, melting said material by heating with the aid ...
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WO/2005/080615A1 |
A method of maintaining the life of a porous filter when refining a metal melt by controlling the formation of a filter cake thereon, the method comprising passing liquid metal through a porous filter and adding a filter cake formation a...
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WO/2005/078145A1 |
A process of producing aluminium and aluminium-containing materials from a solid aluminium-containing feed material is disclosed. The process comprises leaching the aluminium-containing feed material with a leach liquor and forming an aq...
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WO/2005/056843A1 |
In a method for recovering Al from an off-gas (3,4) produced during carbothermic reduction of aluminum utilizing at least one smelter (1,2), the off-gas (3,4) is directed to an enclosed reactor (5) which is fed a supply of wood charcoal ...
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WO/2005/054521A1 |
A material scrap submergence device comprises a body (10) of heat resistant and/or a refractory material that includes a side wall (12) and a base (14) that define a submergence chamber (10). The refractory body (10) can include passages...
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WO/2005/052219A1 |
Described is an apparatus for the production of an elemental metal from a metal-containing compound comprising a solution containing ions of a first metal and a second metal, wherein the second metal is in colloidal form, and a related m...
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WO/2005/049875A1 |
Method of cooling an at most partially solidified molten metal during fractional crystallisation wherein metal crystals formed have a purer composition than that of the molten metal characterised in that salt in solid form is used to coo...
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WO/2005/031234A1 |
The invention relates to an industrial oven which is used to melt non-ferrous metals and for gas treating non-ferrous metals.
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WO/2005/023429A1 |
A method of recycling aluminum alloy wheels, the method comprises providing a feed of aluminum alloy wheels of a particular alloy; subjecting the aluminum alloy wheels to x-ray separation to remove contaminates; fragmenting the aluminum ...
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WO/2005/022060A2 |
The electrode arrangement uses vertically oriented electrodes (4) with side wall contacts (7) for an electrothermic smelting furnace (1) for aluminum production. The side wall contacts (7) are radially moveable into the furnace (1) to co...
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WO/2004/113230A1 |
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...
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WO/2004/111281A2 |
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...
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WO/2004/108975A1 |
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 ...
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WO/2004/108974A1 |
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...
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WO/2004/101830A1 |
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...
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WO2001034858A9 |
A carbothermal process for the production of metals such aluminium, silicon, magnesium and the like from metal compounds, characterised in that the metal compound(s) such as oxide(s) or hydroxides are heated by combustion gases and inter...
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WO/2004/099453A1 |
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...
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WO/2004/099769A1 |
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 ...
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WO/2004/094679A1 |
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...
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WO/2004/090177A1 |
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...
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WO/2004/085686A2 |
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...
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