| Patents for C22B 21 - Obtaining aluminium (4,001) |
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| 03/27/2003 | WO2002075001A3 Reduction smelting method in a shaft furnace with recovery of volatile secondary metals |
| 03/26/2003 | EP1039985B1 Method of removing a metallic coating layer from scrap metal pieces |
| 03/25/2003 | US6537346 Protecting magnesium from reacting with oxygen by exposing to perfluoroketones or hydrofluoroketones |
| 03/20/2003 | WO2003023078A1 Molten metal pump and furnace for use therewith |
| 03/20/2003 | CA2459889A1 Molten metal pump and furnace for use therewith |
| 03/19/2003 | EP1190203B1 Protection coating of wear-exposed components used for refining molten metal |
| 03/19/2003 | EP1090156B1 Treatment of an aluminium alloy melt |
| 03/13/2003 | WO2003020991A1 Method for the purification of an aluminium alloy |
| 03/13/2003 | US20030047850 Molten metal pump and furnace for use therewith |
| 03/13/2003 | CA2459252A1 Method for the purification of an aluminium alloy |
| 03/11/2003 | US6530970 Method for recovering aluminum vapor and aluminum suboxide from off-gases during production of aluminum by carbothermic reduction of alumina |
| 03/05/2003 | EP1288319A1 Method for the purification of an aluminium alloy |
| 02/27/2003 | DE20219644U1 Device for continuously drying contaminated aluminum swarf comprises a rotating drum heated using a burner and having a first end at which the swarf is continuously introduced and a second end at which the dried swarf is ejected |
| 02/20/2003 | WO2002042502A8 Method and equipment for handling dross and recovering the non-ferrous metals contained therein |
| 02/20/2003 | US20030034094 Protective coating using fluorinated ketone |
| 02/18/2003 | US6521018 Mixture of compounds including, e.g., carbonyl fluoride, sulfuryl chloride fluoride, trifluoroacetyl fluoride, sulfur tetrafluoride, bisfluoroxydifluoromethane, nitrosyl fluoride, thionyl fluoride, sulfuryl fluoride, etc. |
| 02/18/2003 | US6521015 Method and apparatus for treating molten aluminum using improved filter media |
| 02/13/2003 | WO2002097143A3 Rotary furnace vessel with protective lining on the basis of an alkaline-earth metal aluminate |
| 02/12/2003 | EP1144700B1 Improved method for filtering a metal liquid on a bed of refractory particulate material |
| 02/11/2003 | US6517603 Reducing metal oxides in a shaft furnace and controlling temperature of off gas from the reaction of a charge of metal oxide and reducing agent producing primary metal, wherein second metal remains in off gas |
| 02/11/2003 | CA2292563C Method for processing material comprising aluminium and plastic |
| 02/05/2003 | CN1394975A Special degasifier for cleaning aluminium alloy and its application method |
| 02/04/2003 | US6514311 Clean process of recovering metals from waste lithium ion batteries |
| 01/29/2003 | EP1278897A2 Protection of molten magnesium with a cover gas using fluorocarbons |
| 01/22/2003 | CN1099469C Method of manufacturing aluminum alloy for flattening material and aluminium alloy flattening material for automobiles |
| 01/21/2003 | US6508977 Reinforced refractory shaft design for fluxing molten metal |
| 01/08/2003 | CN1389583A Filtering method of non-metallic inclusion in aluminium melt |
| 01/08/2003 | CN1389435A Coating formula for filtering non-metallic inclusion in aluminium melt |
| 01/07/2003 | US6503292 Molten metal treatment furnace with level control and method |
| 01/03/2003 | WO2002096533A8 Burping filter |
| 01/02/2003 | EP1270751A1 Process of purifying and remelting of contaminated light metals and light metal alloys |
| 01/01/2003 | CN1388260A Continuous vacuum purification process of producing high-purity aluminium |
| 01/01/2003 | CN1388259A Continuous vacuum purifier for producing high-purity aluminium |
| 12/27/2002 | WO2002103067A2 Method for melting down aluminium in a shaft furnace |
| 12/27/2002 | WO2002042502B1 Method and equipment for handling dross and recovering the non-ferrous metals contained therein |
| 12/25/2002 | CN1386871A Deep-bed apparatus of industrial centrifugal machine for filtering out entrainments from molten aluminium |
| 12/19/2002 | WO2002101102A1 Method of recycling metallic coated scrap pieces |
| 12/19/2002 | WO2002100576A1 Molten metal treatment furnace with level control |
| 12/19/2002 | WO2002095078A8 Aluminum shapes, method and reactor for the production of aluminum and aluminum shapes by carbothermic reduction of alumina |
| 12/19/2002 | US20020190442 Oxy-fueled aluminum recovery method |
| 12/18/2002 | EP1112239B1 Ceramic product based on lithium aluminium silicate |
| 12/12/2002 | US20020185791 Oxy-fueled waste incinerator and method |
| 12/12/2002 | US20020185790 A process for the extraction of copper from a copper sulphide containing concentrate also containing iron values, which comprises: an aqueous sulphuric acid solution to form a slurry, the sulphuric acid being provided in an amount by |
| 12/12/2002 | US20020184970 Sptutter targets and methods of manufacturing same to reduce particulate emission during sputtering |
| 12/12/2002 | DE10127753A1 Removing impurity alloying components from an aluminum cast alloy comprises completely melting the cast alloy, mixing with boron, casting the melt, and removing or retaining solids produced from the melt before or during casting |
| 12/11/2002 | EP1264904A1 Method for ultrasonic treatment of a melt of hypereutectic silumins |
| 12/11/2002 | EP1264903A2 Refining of aluminium casting alloys by boron addition |
| 12/10/2002 | CA2268862C Melting apparatus and method for melting metal |
| 12/05/2002 | WO2002097143A2 Rotary furnace vessel with protective lining on the basis of an alkaline-earth metal aluminate |
| 12/05/2002 | WO2002096831A1 Hydrophilic protective layers bonded on hydrophobic substrates for use at elevated temperature |
| 12/05/2002 | WO2002096830A1 Carbon tiles with refractory coating for use at elevated temperature |
| 12/05/2002 | WO2002096533A1 Burping filter |
| 12/05/2002 | US20020180122 Method for oxy-fueled combustion |
| 12/05/2002 | US20020179523 Burping filter |
| 12/05/2002 | CA2448566A1 Hydrophilic protective layers bonded on hydrophobic substrates for use at elevated temperature |
| 12/05/2002 | CA2448564A1 Carbon tiles with refractory coating for use at elevated temperature |
| 12/04/2002 | EP1262568A1 Rotary furnace vessel with protective lining on the basis of an alkaline-earth metal aluminate |
| 12/03/2002 | US6488743 Metal melt treatment equipment |
| 11/28/2002 | WO2002095079A1 Method for aluminum recovery from al-vapor and aluminum suboxide containing off-gases produced by carbothermic reduction of alumina |
| 11/28/2002 | WO2002095078A1 Aluminum shapes, method and reactor for the production of aluminum and aluminum shapes by carbothermic reduction of alumina |
| 11/27/2002 | EP1260613A2 Method for de-oiling scraps of aluminium materials |
| 11/27/2002 | EP1100974B1 Method for in-line filtering of a liquid metal and implementing device |
| 11/27/2002 | CN1381603A Filtering unit with ceramic filter for molten aluminium |
| 11/27/2002 | CN1381602A Process for removing non-metal impurities from molten aluminium by ceramic filter |
| 11/26/2002 | US6485696 Recovery/removal of metallic elements from waste water using ozone |
| 11/26/2002 | US6485541 Method to decrease loss of aluminum and magnesium melts |
| 11/21/2002 | US20020170387 Method for recovering aluminum vapor and aluminum suboxide from off-gases during production of aluminum by carbothermic reduction of alumina |
| 11/21/2002 | DE10128335C1 Process for cleaning and re-melting contaminated light metals in fine form or light metal alloys comprises heating the metals in a crucible while mechanically stirring, evacuating the crucible, increasing the temperature etc. |
| 11/14/2002 | WO2002090605A1 Acid digestion process for treating alumina-bearing ores to recover metal values therefrom |
| 11/14/2002 | US20020168309 Method for recovering catalytic metals |
| 11/14/2002 | US20020166413 Refining nonferrous metal and alloys with a gaseous mixture including compound selected from ClF3, ClF, COF2, F3COF, CF2(OF)2, SO2 F2, NF3, SO2ClF, SOF2, SOF4, NOF, F2 and SF4 |
| 11/07/2002 | DE10120984A1 Deoiling aluminum scrap, e.g. stamping and deep drawing waste from manufacture of vehicle parts, uses aqueous deoiling agent with added surfactant or organic solvent |
| 11/05/2002 | US6476286 Reclaiming TNT and aluminum from tritonal and tritonal-containing munitions |
| 11/05/2002 | US6475260 Reacting alumina with carbon by heating to produce a molten body comprising aluminum and aluminum carbide; mixing with molten body a solid coolant comprising aluminum or aluminum alloy, separating precipitated aluminum carbide |
| 10/30/2002 | CN1376803A Recovery method for catalytic metal |
| 10/27/2002 | WO2002088400A1 Oxy-fuel combustion system and uses therefor |
| 10/24/2002 | WO2002057502A3 Treatment of molten metal with a particulate agent using a mixing impeller |
| 10/22/2002 | US6468483 Process for treating alumina-bearing ores to recover metal values therefrom |
| 10/22/2002 | US6468326 Cleaning, degassing and pressurization of aluminum into porous filters made of ceramics, graphite or refractories; high speed purification |
| 10/17/2002 | US20020148328 Protection coating of wear-exposed components used for refining molten metal |
| 10/15/2002 | US6464929 Dross processing system |
| 10/15/2002 | CA2175073C Ladle for filtering liquid metal on a filter medium with improved heating |
| 10/03/2002 | WO2002076648A1 Method of applying marking agent to aluminum sheet for scrap sorting purposes |
| 10/03/2002 | WO2002042502A3 Method and equipment for handling dross and recovering the non-ferrous metals contained therein |
| 10/02/2002 | EP1244824A1 Dense refractory material for use at high temperatures |
| 09/26/2002 | WO2002075001A2 Reduction smelting method in a shaft furnace with recovery of volatile secondary metals |
| 09/26/2002 | US20020134199 Method for recovery of metals having low vaporization temperature |
| 09/26/2002 | DE10114179A1 Vorrichtung zum Einschmelzen von Aluminiumschrott Apparatus for melting aluminum scrap |
| 09/25/2002 | EP1243663A2 Method and apparatus for melting aluminium scrap |
| 09/25/2002 | EP0972088B1 Process for treating a material containing metal and organic matter, including metal separation |
| 09/24/2002 | USRE37853 Fast quench reactor and method |
| 09/24/2002 | US6454832 Intermediate product such as a rolling ingot, extrusion billet, forging block made of a specified 7000 series alloy, anti-recrystallising element; casting |
| 09/18/2002 | EP1240118A1 Aluminium-wettable protective coatings for carbon components used in metallurgical processes |
| 09/17/2002 | US6451247 Shaft and post assemblies for molten metal apparatus |
| 09/17/2002 | US6451246 Molten metal vessel for filtering impurities |
| 09/12/2002 | US20020125620 Recirculating molten metal supply system and method |
| 09/10/2002 | US6447738 Leaching with sulfuric acid, reducing any ferric values to ferrous, crystallizing formed double salts, washing, hydrolyzing, washing, drying, calcining |
| 09/05/2002 | US20020121158 Impurities are eliminated by evaporation by stirring the molten metal in the molten liquid; recovered into a refined molten liquid recovery chamber placed under an atmospheric pressure outside of the evacuated chamber. |
| 09/04/2002 | EP1044164A4 Improvements relating to the bayer process |
| 08/27/2002 | US6440193 Method and reactor for production of aluminum by carbothermic reduction of alumina |