| Patents for C21B 13 - Making spongy iron or liquid steel, by direct processes (6,991) |
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| 11/17/2005 | US20050252340 Furnace sidewall structure of rotary hearth furnace |
| 11/17/2005 | CA2506391A1 Method for preparing a metallic article having an other additive constituent, without any melting |
| 11/16/2005 | EP1509626B1 Furnace sidewall structure of rotary hearth furnace |
| 11/16/2005 | CN1697885A Process for producing sponge iron and reduced iron powder, sponge iron, and charging apparatus |
| 11/16/2005 | CN1227372C Blank-block drying method for producing red reduced iron |
| 11/16/2005 | CN1227371C Method for the indirect reduction of particulate oxide-containing ores and apparatus therefor |
| 11/10/2005 | WO2005104708A2 Method and apparatus for gasifying waste automotive tires to produce high quality solid carbon and non-condensable synthesis gas |
| 11/10/2005 | CA2563375A1 Method and apparatus for gasifying waste automotive tires to produce high quality solid carbon and non-condensable synthesis gas |
| 11/09/2005 | EP1593090A2 Multivariate, predictive regulation of a direct reduction process |
| 11/09/2005 | CN1226424C Blowing method for blowing synthetic resin into furnace |
| 11/09/2005 | CN1226077C Process of conveying granular solids |
| 11/03/2005 | WO2005103306A2 Methods of using tires and scrap rubber in the manufacture and melting of steel and other metals |
| 11/03/2005 | WO2005103305A1 Metallurgical processing installation |
| 11/03/2005 | WO2005040433A3 Direct smelting plant and process |
| 11/02/2005 | EP1591739A1 Seal structure of solid feeding screw, and method of manufacturing reduced metal using the seal structure |
| 11/02/2005 | CN1690227A Process for producing direct reduced iron with coal as reducer |
| 11/01/2005 | US6960238 Using fluizied beds; preheating; reducing iron oxide to iron |
| 10/26/2005 | EP1587962A1 An improved smelting process for the production of iron |
| 10/26/2005 | CN1688721A Metallurgical vessel |
| 10/20/2005 | WO2005098052A1 Method for producing sponge iron in a shaft furnace |
| 10/20/2005 | US20050229743 Methods of using tires and scrap rubber in the manufacture and melting of steel and other metals |
| 10/19/2005 | EP1586840A1 Rabble arm for a furnace |
| 10/19/2005 | EP1586665A1 Producing nickel-base cobalt-base iron-base iron-nickel-base or iron-nickel-cobalt-base alloy articles by reduction of nonmetallic precursor compounds and melting |
| 10/19/2005 | EP1114192B1 A process and an apparatus for producing metals and metal alloys |
| 10/12/2005 | EP1584693A1 Method for producing metallic iron |
| 10/12/2005 | CN1681949A Method for reduction treatment of metal oxide or ironmaking waste, and method for concentration and/or recovery of zinc and/or lead |
| 10/12/2005 | CN1222627C A direct smelting process and apparatus |
| 10/12/2005 | CN1222625C Method for using low temperature rectification combination blast furnace and direct reduction reactor |
| 10/11/2005 | US6953337 Transfer of hot feed materials from a preprocessing plant to an electric smelting or melting furnace |
| 10/06/2005 | US20050217426 Furnishing nonmetallic precursor compounds comprising metallic-base nickel, cobalt, iron, iron-nickel, or iron-nickel-cobalt compounds, and alloying element, reducing precursor to produce initial metallic particle without melting the initial metallic particle; reduced incidence of ceramic inclusions |
| 10/05/2005 | CN1676620A Ore dressing process for reducing magnetic iron ore from hematite carbonaceous pelletizing |
| 10/05/2005 | CN1221670C Method for operating rotary heartn type reducing furnace and rotary hearth type reducing furnace facilities |
| 10/05/2005 | CN1221669C Method for prodn. of reduction iron |
| 10/05/2005 | CN1221668C Direct smelting process and apparatus |
| 09/29/2005 | WO2005090711A1 Method of building a direct smelting plant |
| 09/29/2005 | WO2005090613A1 Direct smelting plant |
| 09/29/2005 | US20050211020 Ferronickel and process for producing raw material for ferronickel smelting |
| 09/29/2005 | DE10336676B4 Verfahren und Anlage zur Reduktion von eisenoxidhaltigen Feststoffen Method and apparatus for reduction of iron oxide-containing solids |
| 09/29/2005 | CA2558967A1 Direct smelting plant |
| 09/28/2005 | EP1580508A1 Material feeding apparatus for rotary hearth furnace |
| 09/28/2005 | EP1190106B1 Fluidized bed reduction of laterite fines with reducing gases generated "in situ" |
| 09/22/2005 | WO2004050939A3 Plasma-assisted melting |
| 09/21/2005 | EP1576198A1 An apparatus for manufacturing moltens irons to improve operation of fluidized bed type reduction apparatus and manufacturing method using the same |
| 09/21/2005 | EP1576197A1 An apparatus for manufacturing molten irons to dry and convey iron ores and additives and manufacturing method using the same |
| 09/21/2005 | CN1670459A A moving-bed iron liquid furnace |
| 09/21/2005 | CN1219891C Direct reduction method and rotary kiln hearth |
| 09/15/2005 | WO2005084111A2 Combined pre-treatment process for enabling feed material to be charged in direct reduction processes |
| 09/15/2005 | WO2005084110A2 Pre-treatment process for feed material for direct reduction process |
| 09/14/2005 | EP1573076A1 An apparatus for manufacturing molten irons by hot compacting fine direct reduced irons and calcined additives and method using the same |
| 09/14/2005 | EP1098997B1 A direct smelting process |
| 09/14/2005 | EP1042514B1 Method for reforming reducing gas in a fluidized bed process for reduction of ore |
| 09/14/2005 | CN1219078C Coal base hot-air rotary hearth furnace melting reduction iron-smelting method |
| 09/09/2005 | WO2005083130A1 Direct smelting plant and process |
| 09/08/2005 | US20050193862 Process for producing sponge iron and reduced iron powder sponge iron and charging apparatus |
| 09/07/2005 | CN1664117A Process for preparing directly reduced iron |
| 09/06/2005 | US6939391 Forming bath of molten metal and molten slag in metallurgical vessel; injecting ferrous feed and smelting ferrous feed to metal; injecting solid carbonaceous material; generating a gas flow; injecting preheated air such that it impinges |
| 09/01/2005 | WO2005080609A1 Method for producing iron by direct reduction and device for carrying out said method |
| 09/01/2005 | WO2005080608A1 Direct smelting plant and process |
| 08/31/2005 | EP1568793A1 Method and apparatus for reducing metal-oxygen compounds |
| 08/31/2005 | CN1661118A Method and apparatus for supplying granular raw material for reduced iron |
| 08/31/2005 | CN1217014C Direct smelting process |
| 08/31/2005 | CN1217013C Direct smelting process and apparatus |
| 08/25/2005 | WO2005078146A1 A zinc refining process with oxygen-enriched and the enclosed smelting furnace thereof |
| 08/24/2005 | EP1565585A1 Process and apparatus for extracting zinc |
| 08/24/2005 | CN1216156C Method and device for producing molten iron |
| 08/11/2005 | WO2005073412A1 Ironmaking and steelmaking |
| 08/11/2005 | US20050175533 Combustion looping using composite oxygen carriers |
| 08/11/2005 | CA2554805A1 Ironmaking and steelmaking |
| 08/10/2005 | EP1561829A1 Method for reduction treatment of metal oxide or ironmaking waste, and method for concentration and/or recovery of zinc and/or lead |
| 08/10/2005 | CN1653196A Furnace sidewall structure of rotary hearth furnace |
| 08/10/2005 | CN1214119C Method for producing directly reduced, desulfurized iron |
| 08/04/2005 | WO2005071126A1 Mehod for producing iron-nickel alloys from oxide materials and device for carrying out said method |
| 08/04/2005 | WO2005071119A1 A method for manufacturing briquettes directly using coal with wide range of size, the method using the same and the apparatus using the same |
| 08/03/2005 | CN1213154C Equipment for producing reduced iron |
| 07/28/2005 | US20050161868 Vertical shaft melting furnace |
| 07/27/2005 | CN1644720A Oxygen-enriched zinc smelting method |
| 07/27/2005 | CN1212410C Method for realizing zero exhaust for fully steelmaking of steel dust and mud |
| 07/21/2005 | US20050155457 Method and device for the continuous production of steel using metal charge material |
| 07/20/2005 | EP1034311B1 Direct smelting process for producing metals from metal oxides |
| 07/20/2005 | CN1641051A Nickel-containing sponge iron, and its preparing method and method for producing nickel alloy billet |
| 07/19/2005 | US6918947 Method for making reduced iron |
| 07/19/2005 | US6918945 Method for producing sponge iron, and reduced iron powder and method for production thereof |
| 07/14/2005 | US20050151307 Method and apparatus for producing molten iron |
| 07/13/2005 | EP1553196A1 Ferronickel and process for producing raw material for ferronickel smelting |
| 07/13/2005 | EP1551939A1 Apparatus and process for the treatment of a material under pyrolytical conditions, and use thereof |
| 07/13/2005 | CN1639359A Method and apparatus for supplying solid feed materials for a direct smelting process |
| 07/12/2005 | US6916357 Method for introducing a granular ore into a roasting kiln |
| 07/07/2005 | WO2005061739A1 Device for producing iron from iron-containing raw material |
| 07/07/2005 | DE3905486B4 Schmelzofen und Beschickungsverfahren für denselben Melting furnace and charging method for the same |
| 06/30/2005 | DE10260737B4 Verfahren und Anlage zur Wärmebehandlung von titanhaltigen Feststoffen Method and apparatus for heat treatment of titanium-containing solids |
| 06/29/2005 | EP1163375B1 Fluidized bed reduction reactor for reducing fine iron ore and supplying the reduced ore to a melter-gasifier |
| 06/29/2005 | CN1633508A Method and device for the continuous production of steel using metal charge material |
| 06/29/2005 | CN1633507A Method and device for producing pig iron and/or pig iron intermediate products |
| 06/29/2005 | CN1208477C Low apparent density reduction iron powder and its manufacturing method |
| 06/29/2005 | CN1208476C Method and device for producing fixed bed |
| 06/29/2005 | CN1208475C Direct smelting process |
| 06/23/2005 | WO2005017233A3 Insulated cold hearth for refinning metals having improved thermal efficiency |
| 06/22/2005 | EP1386013B1 Method for reutilizing mill scale sludges and coal fines |
| 06/22/2005 | CN1629322A Process for preparing spherical, oblate spherical and diamond shape sponge iron by QF-LY method |
| 06/22/2005 | CN1207400C Direct smelting process and container therefor |