| Patents for C22B 21 - Obtaining aluminium (4,001) |
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| 05/18/1999 | US5904894 Rotary inert gas dispersion apparatus for molten metal treatment |
| 05/11/1999 | US5902560 Method for inhibiting precipitation of sodium oxalate in a Bayer process liquor |
| 05/11/1999 | US5901910 Metal recovery from salt cake and other compositions |
| 05/06/1999 | WO1999022034A1 Method and apparatus for removing liquid salts from liquid metal |
| 05/04/1999 | US5900039 Process for obtaining fluid light metal from a dispersed mixture |
| 04/30/1999 | CA2252201A1 Method and composition for aluminum recycle using salt flux |
| 04/13/1999 | US5894541 Electric heater assembly |
| 04/13/1999 | US5894085 Device for determining the purity of a metal alloy |
| 04/06/1999 | CA2108240C Filter for metal hot melt and process for production thereof |
| 03/30/1999 | US5888458 Melting furnace of metals and melting method thereof |
| 03/29/1999 | CA2212404A1 Apparatus for degassing aluminum castings and apparatus for case hardening with non-cyanide salt |
| 03/24/1999 | CN1042652C Method of preparation of metallic phase from light metal and non-metallic dispersed mixture |
| 03/23/1999 | US5885321 Catalytic decomplexing and reduction to precipitate aluminum metal from solution of complexed aluminum hydride |
| 03/16/1999 | US5882580 Dross presses |
| 03/10/1999 | EP0900853A1 Rotary impeller for gas treatment of molten metals |
| 03/03/1999 | EP0899347A1 Press head for a dross press |
| 02/06/1999 | CA2242122A1 Anode, a process for the manufacture thereof and a process for the production of aluminum |
| 02/03/1999 | EP0894151A1 Recovery of metal from dross |
| 01/28/1999 | WO1999004046A1 Inert tank for treating oxidable liquid metal |
| 01/27/1999 | EP0893511A2 Improvements in or relating to dross presses |
| 01/27/1999 | EP0832304B1 Method and apparatus for continuous in-line gas treatment of molten metals |
| 01/20/1999 | EP0668804B1 Filtration of molten material |
| 01/20/1999 | CN1205744A Prodn. of metal such as aluminium, magnesium, silicon and like from metal oxide compounds |
| 01/20/1999 | CN1041754C Method and appts. for pre-processing mixture containing metal |
| 01/14/1999 | DE19729702A1 Automatic treatment system for liquid metal, especially liquid aluminium |
| 01/13/1999 | EP0830463B1 Dross press fume extraction system |
| 01/13/1999 | EP0821743B1 Cooling system for press head |
| 01/07/1999 | WO1999001011A1 Electric heating element and heater assembly |
| 01/07/1999 | WO1999000327A1 Treatment of aluminum dross |
| 01/05/1999 | US5855644 Method for recovering aluminium from materials containing metallic aluminium |
| 12/29/1998 | US5853677 Concentration of solids by flocculating in the Bayer process |
| 12/23/1998 | EP0886118A1 Rotary drum furnace in particular for remelting aluminium |
| 12/23/1998 | EP0885977A1 Vessel apparatus for the treatment of molten metal |
| 12/23/1998 | EP0462218B1 Die-casting process and equipment |
| 12/15/1998 | US5850073 For heating molten metal |
| 12/15/1998 | US5850072 Electric heater assembly |
| 12/08/1998 | US5846481 Molten aluminum refining apparatus |
| 12/08/1998 | US5846480 Aluminum remelting furnace, in particular for melting aluminum scrap to be recycled |
| 12/08/1998 | US5846479 Apparatus for de-gassing molten metal |
| 12/03/1998 | WO1998053969A1 Method for processing material comprising aluminium and plastic |
| 11/26/1998 | WO1998053108A1 Fluidised bed method for the recovery of metal from organics-containing metal waste |
| 11/25/1998 | EP0879653A1 Method and apparatus for reclaiming empty can of aluminum |
| 11/25/1998 | EP0879087A1 Method and device for separating particles from an electrically conductive liquid flow using electromagnetic forces |
| 11/19/1998 | WO1998051829A1 Aluminum scrap cleaning and decarbonization |
| 11/19/1998 | DE19719940A1 Method and apparatus for reinforcing melt motion during aluminium melting |
| 11/18/1998 | EP0877828A1 Press head and dross pot for dross processing system |
| 11/18/1998 | CN1040775C Modifying and refining compound fusion agent for Al-Al alloy |
| 11/17/1998 | CA2018491C Process and apparatus for degassing and maintaining a low hydrogen content in liquid aluminium alloys during transportation in ladles |
| 10/21/1998 | EP0716715B1 Recovery of aluminum and/or fluoride values from used aluminum chlorofluorides |
| 10/21/1998 | CN1196398A Producing metal aluminium by thermal reduction method |
| 10/14/1998 | EP0870068A1 Use of a process for melting small pieces of light metal scrap |
| 10/06/1998 | US5817163 Evaporation of carbon-containing coating |
| 09/23/1998 | EP0865509A1 Production of metal such as aluminium, magnesium, silicon and the like from metal oxide compounds |
| 09/22/1998 | US5811056 Cooling system for press head |
| 09/22/1998 | US5810907 Continuous melting apparatus for low-melting point metal, improved crucible for such apparatus, and melting method using such apparatus |
| 09/11/1998 | WO1998039490A1 Modular filter system for molten metal |
| 09/09/1998 | EP0863216A2 Method of treating metal/plastic composite waste material by heat decomposition |
| 09/08/1998 | US5804135 Thermal shock resistance ceramic tubes that are connected to one another using insert and lock technique |
| 09/02/1998 | EP0861910A2 Chemical treatment of aluminum alloys to enable alloy separation |
| 08/27/1998 | WO1998037246A1 Fluidized bed process for removing organic materials from metallic articles such as aluminum scrap |
| 08/27/1998 | DE19707453A1 Reinforcing motion of the metal during melting of aluminium@ in hydraulically tiltable furnaces |
| 08/26/1998 | EP0756644B1 A method for manufacturing castable metal matrix composite bodies and bodies produced thereby |
| 08/26/1998 | EP0745144B1 Method and apparatus for recovery of non-ferrous metals from scrap and dross |
| 08/26/1998 | CN1191242A Process for smelting aluminium |
| 08/13/1998 | WO1998034730A1 Metal recovery from salt cake and other compositions |
| 08/04/1998 | US5788918 Dross press fume extraction system |
| 07/29/1998 | EP0828552A4 Process for recovery of metal ions |
| 07/28/1998 | US5785851 High capacity filter |
| 07/22/1998 | EP0854198A1 Process and apparatus for charging and melting small-sized light metal scrap |
| 07/21/1998 | US5783142 Oxidizing aluminum dross residue to high alumina lightweightaggregateat |
| 07/16/1998 | WO1998030499A1 Detoxifying aluminum spent potliners |
| 07/15/1998 | EP0853131A1 Process and plant for induction melting and purification of aluminium, copper, brass, lead and bronze alloys |
| 07/15/1998 | CA2227126A1 Process and device for melting light metals |
| 07/08/1998 | EP0754090B1 Method for obtaining secondary aluminium |
| 07/07/1998 | US5776426 Using caustic liquid and lime |
| 06/30/1998 | US5772725 Method for fluxing molten metal |
| 06/25/1998 | WO1998027240A1 Method and device for separating metals and/or metal alloys of different melting points |
| 06/23/1998 | US5769924 Method of treating aluminum with chlorine produced from chlorocarbon compounds |
| 06/23/1998 | US5769331 Method and apparatus for recycling empty aluminum cans |
| 06/16/1998 | US5766478 Water-soluble polymers for recovery of metal ions from aqueous streams |
| 06/10/1998 | EP0815271A4 Fast quench reactor and method |
| 06/09/1998 | US5762722 Covering flux for smelting aluminum and a process for its preparation |
| 05/27/1998 | EP0843587A1 Process for reducing the dioxin and furan content in waste gases from furnaces, and use of the filter dusts produced thereby |
| 05/20/1998 | EP0842305A1 Process for treating residues arising in industrial processes and the burning of rubbish |
| 05/20/1998 | CN1182456A Fast quench reactor and method |
| 05/15/1998 | CA2221093A1 Process and plant for melting and purification of aluminium, copper, brass, lead and bronze alloys |
| 05/14/1998 | WO1998020175A1 Dross press with rocking press head |
| 05/14/1998 | WO1998020174A1 Molten metal pump and method of using |
| 05/14/1998 | WO1998020173A1 Molten metal pump and method of using |
| 05/12/1998 | US5749937 Fast quench reactor and method |
| 04/22/1998 | EP0771364B1 Recovery of non-ferrous metals from dross |
| 04/21/1998 | US5741422 Molten metal filter cartridge |
| 04/21/1998 | US5741348 Method for refining an aluminium scrap smelt |
| 04/16/1998 | WO1998015792A1 Melting apparatus and method for melting metal |
| 04/07/1998 | US5736096 Apparatus for purifying metal |
| 04/07/1998 | US5735935 Reducing splashing and spattering |
| 04/01/1998 | EP0832304A1 Method and apparatus for continuous in-line gas treatment of molten metals |
| 03/26/1998 | DE19703062C1 Dispersing apparatus for gases in metal melt |
| 03/25/1998 | EP0830463A1 Dross press fume extraction system |
| 03/18/1998 | EP0828552A1 Process for recovery of metal ions |