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Patent Searching and Data


Matches 201 - 250 out of 3,209

Document Document Title
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...  
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...  
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...  
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...  
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...  
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...  
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...  
WO/2006/133889A3
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...  
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...  
WO2006026771A3
A start-up process of making aluminum using a single carbothermic reactor/furnace (11) having a single hollow reactor compartment with bottom resistance heating electrodes (16) (13) in the side of the reactor, involves adding Al2O3 and C...  
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...  
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...  
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...  
WO2005118893A3
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 ...  
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.  
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...  
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 ...  
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...  
WO/2006/037999A3
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...  
WO/2006/031098A1
Method and apparatus for the extraction of gibbsite (Al2O3.3H2O) from bauxite. A double extraction method is used wherein the first extraction constitutes any low temperature digestion technology with solid-liquid separation temperature ...  
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...  
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 ...  
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.  
WO/2005/118891A3
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.  
WO/2005/114079A3
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...  
WO/2005/113844A1
A graphite electrode for an electrothermic reduction furnace in which aluminum is produced by carbothermic reduction of alumina is rendered substantially gas¬≠impermeable. The graphite electrode is consumed during furnace operation and e...  
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...  
WO2005092563A3
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...  
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...  
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 ...  
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...  
WO2004074523A3
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/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 ...  
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...  
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...  
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...  
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...  
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 ...  
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...  
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...  
WO2005022060A3
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...  
WO2005047552A3
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...  
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 ...  
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...  
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...  
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...  
WO/2005/047552A2
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...  
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.  
WO2004111281A3
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/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 ...  

Matches 201 - 250 out of 3,209