| Patents for C21B 11 - Making pig-iron other than in blast furnaces (2,381) |
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| 05/27/2004 | US20040099094 Metal apparatus for forming pig iron or steels from raw materials containing iron and carbon; fixed beds |
| 05/18/2004 | US6736876 Furnaces for preheating and reducing charged fine iron ore with gas; melting, gasification; scrubbing and cooling exhaust gas via tube; |
| 05/13/2004 | DE10249235A1 Process for operating a shaft furnace comprises introducing feed material, fuel, a first oxidant and a second oxidant into a melting zone of a shaft furnace, in which the second oxidant added in a partially pulsed manner |
| 05/06/2004 | US20040083853 Heating, carbonizing the biomass in an oxygen-free furnace, reducing the metal oxide, agglomerating the mixture, melting; producing reduced iron from iron oxide by using biomass as reducing agent |
| 05/06/2004 | DE10248567A1 Process for the production of a metal from a metal ore comprises blowing a mixture as reduction gas into a shaft furnace to react with the ore containing a metal oxide |
| 04/28/2004 | CN1492937A Method for producing melt iron in electric furnace |
| 04/15/2004 | WO2004031324A1 Apparatus and process for the treatment of a material under pyrolytical conditions, and use thereof |
| 04/15/2004 | CA2501262A1 Apparatus and process for the treatment of a material under pyrolytical conditions, and use thereof |
| 04/14/2004 | EP1408124A1 Method for producing feed material for molten metal production and method for producing molten metal |
| 04/14/2004 | EP0787213B1 Process for producing liquid raw iron or semi-finished steel products and installation for implementing it |
| 04/09/2004 | CA2444158A1 Method for producing feed material for molten metal production and method for producing molten metal |
| 04/08/2004 | WO2004033730A1 Method for producing titanium oxide containing slag |
| 04/07/2004 | EP1405925A1 Method of manufacturing metal iron |
| 04/07/2004 | EP1405895A1 Apparatus and process for the treatment of a material under pyrolytical conditions, and use thereof |
| 04/07/2004 | CN1144883C Method for transmitting powder and gas to liquid |
| 04/06/2004 | CA2287646C Method for integrating a blast furnace and a direct reduction reactor using cryogenic rectification |
| 04/01/2004 | US20040060389 Reduction of metallic fines to form pre-reduced fines; hot transfer of the fines within an inert gas curtain into the heel, which is covered with a nonfoaming slag; agitation of the heel by injection of gas; smelting |
| 03/23/2004 | CA2205812C Scrap melting process |
| 03/04/2004 | WO2004018717A2 Electrostatically enhanced tribochemical methods and apparatus |
| 03/03/2004 | CN1478908A Method and device for separating iron and titanium to prepare high titanium slag |
| 02/24/2004 | US6696013 Metallurgical furnace with scrap metal preheater and dispenser |
| 02/19/2004 | US20040031355 Direct smelting process and apparatus |
| 02/17/2004 | CA2296351C Method for controlling a smelting reduction process |
| 02/10/2004 | US6689182 Method and device for producing molten iron |
| 02/05/2004 | US20040022621 Method and device for distributing a lumpy bulk material |
| 02/04/2004 | EP1114195B1 A direct smelting process |
| 02/04/2004 | EP1114191B1 A direct smelting process |
| 02/03/2004 | US6685466 Metal apparatus comprising kilns for heating and reduction of heat treated mixtures of metal oxides, coal or coke |
| 01/28/2004 | EP1383933A1 Method for producing a melt iron in an electric furnace |
| 01/07/2004 | CN2597482Y Efficient multi-performance smelting device |
| 01/02/2004 | EP1373581A2 Reduction smelting method in a shaft furnace with recovery of volatile secondary metals |
| 12/17/2003 | CN1462355A Method and device for distributing lumpy bulk material |
| 12/17/2003 | CN1462311A Method and device for producing moving bed |
| 11/26/2003 | CN2588303Y Adjustable material-shovelling board device for chain-grate machine |
| 11/26/2003 | CN1458981A Direct smelting process and apparatus |
| 11/18/2003 | US6648942 Using a hot pre-reduced iron ore, charging to the moving hearth furnace, heating to melt, then reacted with the carbon and separating slag, forming carburized iron nuggets, cooling; metal working |
| 11/05/2003 | EP1285096B1 Method and device for producing pig iron or liquid steel pre-products from charge materials containing iron ore |
| 10/21/2003 | CA2078146C Process for producing metals and metal alloys in a smelt reduction vessel |
| 10/15/2003 | EP1351891A1 Method for utilising a waste slurry from silicon wafer production |
| 10/07/2003 | US6629839 Charging carbon material onto flat moving hearth of furnace to form layer preventing molten metal from directly contacting hearth, charging raw material layer onto carbon layer, forming metal and slag receiving recesses on surface of carbon layer |
| 10/02/2003 | US20030185700 0.25-0.35% by mass C, not more than 0.15% Si, 0.2-0.8% Mn, 0.3-0.6% Ni, 1.6-1.9% Cr, 0.26-0.35% V, 0.6-1.1% Mo, 0.6-1.4% W, 1.3-1.4% Mo+W/2, and the balance Fe |
| 10/01/2003 | EP1246947B1 Method for producing pig iron |
| 09/30/2003 | US6626977 Direct smelting process and apparatus |
| 09/24/2003 | CN1443856A Coal base hot-air rotary hearth furnace melting reduction iron-smelting method |
| 09/18/2003 | WO2003064708A8 Finisher-hearth-melter furnace and method of using for iron-making / steel-making |
| 09/17/2003 | EP0958385B1 Method of agglomerating oil-containing steel mill waste |
| 09/17/2003 | CN1443246A Direct smelting process and apparatus |
| 09/16/2003 | CA2322676C Gas and powder delivery system |
| 09/04/2003 | US20030164066 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 |
| 08/13/2003 | CN1435494A Method for smelting melted iron with iron-bearing waste cooled agglomerated pellet |
| 08/07/2003 | WO2003064708A1 Finisher-hearth-melter furnace and method of using for iron-making / steel-making |
| 08/05/2003 | US6602321 Direct smelting process |
| 07/23/2003 | EP1187942B1 Method for producing melt iron |
| 07/23/2003 | EP0826130B1 Process for melting of metal materials in a shaft furnace |
| 07/22/2003 | US6596223 Apparatus for direct smelting |
| 07/16/2003 | CN1430679A Apparatus for injecting solid particulate material into vessel |
| 07/16/2003 | CN1430678A Method and device for producing pig iron or liquid steel intermediate from charge materials containing iron ore |
| 07/15/2003 | US6592649 Purity; materials handling; reduction of iron oxide ores with hydrocarbons |
| 07/10/2003 | WO2003056040A1 Method of production of liquid carbonaceous iron based metal |
| 07/10/2003 | WO2003056039A1 An apparatus and method for recycling dust and sludge containing iron in ironmaking process using coal and fine ore |
| 07/09/2003 | EP1325950A2 Co-current shaft reactor |
| 07/09/2003 | EP1325160A1 Method and device for producing a static bed |
| 07/09/2003 | EP1325159A1 A direct smelting process and apparatus |
| 07/09/2003 | EP1325156A2 Method and device for distributing a lumpy bulk material |
| 07/09/2003 | CN1429278A A direct smelting process and apparatus |
| 07/03/2003 | US20030122290 Metallurgical furnace with scrap metal preheater and dispenser |
| 07/02/2003 | EP1114195A4 A direct smelting process |
| 07/02/2003 | EP1114191A4 A direct smelting process |
| 07/02/2003 | EP1098997A4 A direct smelting process |
| 07/01/2003 | US6585929 Direct smelting vessel |
| 06/25/2003 | EP1320633A1 A direct smelting process and apparatus |
| 06/25/2003 | EP1114192A4 A process and an apparatus for producing metals and metal alloys |
| 06/25/2003 | EP1112387A4 Direct smelting vessel and direct smelting process |
| 06/25/2003 | EP1034311A4 Direct smelting process for producing metals from metal oxides |
| 06/24/2003 | US6582492 Reduction-melting methods capable of replacing the blast furnace in the production of molten pig iron |
| 06/19/2003 | US20030111778 Gas blowing plug and manufacturing method therefor |
| 06/04/2003 | EP1108071B1 Multifunction lance and use thereof |
| 05/29/2003 | US20030097908 Using a hot pre-reduced iron ore, charging to the moving hearth furnace, heating to melt, then reacted with the carbon and separating slag, forming carburized iron nuggets, cooling; metal working |
| 05/27/2003 | US6569223 Method of manufacturing molten metal iron |
| 05/27/2003 | CA2211182C Method of utilizing dusts incurring in the reduction of iron ore |
| 05/20/2003 | US6565800 Apparatus for injecting solid particulate material into a vessel |
| 05/13/2003 | US6562102 Method for producing liquid pig iron |
| 05/06/2003 | US6558614 Method for producing a metal melt and corresponding multifunction lance |
| 05/06/2003 | CA2296234C Method for manufacturing reduced iron pellets |
| 04/23/2003 | EP1304391A2 Method for producing a metal melt and corresponding multfunction lance |
| 04/23/2003 | CN1413265A Method for producing pig iron |
| 04/22/2003 | US6551550 Gas blowing plug and manufacturing method therefor |
| 04/17/2003 | US20030070507 Supplying pre-reducing iron to a stationary non-tilting type melting furnace and melting the iron by arc heating mainly comprising radiation heating |
| 04/16/2003 | CN1410553A Method and device for producing molten iron |
| 04/09/2003 | EP0818543B1 Method for operating shaft furnace |
| 04/02/2003 | EP1298224A1 Method and device for producing molten iron by means of arc heating with minimal refractory index |
| 04/01/2003 | CA2402827A1 Method and device for producing molten iron |
| 03/27/2003 | WO2002075001A3 Reduction smelting method in a shaft furnace with recovery of volatile secondary metals |
| 03/26/2003 | CN1406286A Direct smelting process and apparatus |
| 03/19/2003 | EP1292713A1 Direct smelting process and apparatus |
| 03/05/2003 | EP1287170A1 Apparatus for injecting solid particulate material into a vessel |
| 03/05/2003 | CN1102662C Apparatus and process for preheating of wast iron and steel scrap |
| 03/04/2003 | WO2002027041A2 Method and device for distributing a lumpy bulk material |
| 02/26/2003 | EP1285096A1 Method and device for producing pig iron or liquid steel pre-products from charge materials containing iron ore |
| 02/20/2003 | US20030033905 Forming uniform, nonagglomerating, flowable body for three dimensional printing |