| Patents for C21B 11 - Making pig-iron other than in blast furnaces (2,381) |
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| 03/22/2007 | US20070062330 Operating a channel induction furnace so as to receive electric arc furnace dust, basic oxygen furnace ludge/dust and/or other iron and volatile metals containing materials as a feed stream on a with a iron-containing material feed, and produce an iron-containing hot metal or pig iron product |
| 03/21/2007 | CN1934325A Method of building a direct smelting plant |
| 03/21/2007 | CN1934278A Direct smelting plant |
| 03/21/2007 | CN1306044C Method for producing titanium oxide containing slag |
| 03/14/2007 | EP1325159B1 A direct smelting process |
| 03/08/2007 | WO2007027998A2 Ore reduction process and titanium oxide and iron metallization product |
| 03/07/2007 | CN1926248A Direct smelting plant and process |
| 02/28/2007 | CN1922333A Direct smelting plant and process |
| 02/28/2007 | CN1302122C Reduction smelting method in a shaft furnace with recovery of volatile secondary metals |
| 02/14/2007 | EP1325156B1 Device for distributing a lumpy bulk material |
| 02/01/2007 | WO2005103306A3 Methods of using tires and scrap rubber in the manufacture and melting of steel and other metals |
| 01/30/2007 | US7169205 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 |
| 01/30/2007 | CA2364273C Rotary hearth furnace for producing reduced metal and method of producing reduced metal |
| 01/10/2007 | EP1740728A1 Metallurgical processing installation |
| 01/10/2007 | CN1294280C Method for producing granulated metal iron |
| 01/09/2007 | US7160501 Method for the salt-free, non-oxidizing remelting of aluminium |
| 01/03/2007 | EP1739194A1 Method of supersonic injection of an oxidationagent in a melting furnace |
| 12/28/2006 | WO2006135984A1 Production of iron |
| 12/20/2006 | EP1734321A1 Process and shaft furnace for heating and melting down waste materials such as shredded scrap |
| 12/14/2006 | US20060278040 Process for producing reduced matal and agglomerate with carbonaceous material incorporated therein |
| 12/07/2006 | US20060272452 Production of iron |
| 12/07/2006 | DE10117962B4 Verfahren zur thermischen Behandlung von Rohmaterialien und zur Durchführung des Verfahrens Method for the thermal treatment of raw materials and for performing the method |
| 11/29/2006 | EP1725688A1 Direct smelting plant |
| 11/01/2006 | CN1854322A High-purity ferroboron |
| 11/01/2006 | CN1854315A Iron production method |
| 11/01/2006 | CN1282752C Process and apparatus for producing metals and metal alloys |
| 10/19/2006 | US20060230879 Method and plant for the heat treatment of sulfidic ores using annular fluidized |
| 10/18/2006 | CN1280430C Method for extracting pig iron by using dust of iron powder plant |
| 10/12/2006 | WO2006107332A2 Linear hearth furnace system and methods regarding same |
| 10/12/2006 | CA2603086A1 Linear hearth furnace system and methods regarding same |
| 09/20/2006 | CN1834263A Iron-smelting furnace |
| 09/19/2006 | CA2278513C Refractory wall, metallurgical vessel comprising such a refractory wall and method in which such a refractory wall is applied |
| 09/19/2006 | CA2231429C Process for producing liquid metal and facilities for carrying out the process |
| 09/13/2006 | EP1625238A4 Direct smelting plant |
| 09/13/2006 | EP1611259A4 Direct smelting plant and process |
| 09/06/2006 | CN1829891A Electric reducing furnace |
| 08/24/2006 | WO2006047846A3 Device for eliminating oversize pellets from balling disks |
| 08/22/2006 | US7094271 Method for producing stainless steels, in particular high-grade steels containing chromium and chromium-nickel |
| 08/17/2006 | US20060182555 Method and device for distributing a lumpy bulk material |
| 08/16/2006 | EP1287170B1 Apparatus for injecting solid particulate material into a vessel |
| 07/20/2006 | US20060159596 Method of producing nanoparticles using a evaporation-condensation process with a reaction chamber plasma reactor system |
| 07/20/2006 | DE19729624B4 Verfahren und Schachtofen zur thermischen Behandlung eines Rohmaterials A method and a shaft furnace for the heat treatment of a raw material |
| 07/13/2006 | US20060150775 Method and system for producing metallic iron nuggets |
| 07/13/2006 | US20060150774 Method and system for producing metallic iron nuggets |
| 07/13/2006 | US20060150773 Method and system for producing metallic iron nuggets |
| 07/13/2006 | US20060150772 Method and system for producing metallic iron nuggets |
| 07/12/2006 | EP1144696B1 Method of producing molten iron in duplex furnaces |
| 07/12/2006 | CN1802443A Direct smelting plant and process |
| 07/11/2006 | CA2207413C Process for producing molten pig iron or liquid steel pre-products and plant for carrying out the process |
| 07/06/2006 | US20060147866 Seal structure of solid feeding screw, and method of manufacturing reduced metal using the seal structure |
| 07/06/2006 | US20060143977 Apparatus and process for the treatment of a material under pyrolytical conditions, and use thereof |
| 06/28/2006 | EP1373581B1 Reduction smelting method in a shaft furnace with recovery of volatile secondary metals |
| 06/21/2006 | CN1791685A Method for utilizing slag |
| 06/20/2006 | US7063821 Apparatus for production of molybdenum carbide |
| 06/13/2006 | US7059818 Method and device for distributing a lumpy bulk material |
| 05/24/2006 | EP1658467A1 Electric reducing furnace |
| 05/11/2006 | US20060096419 Method for reduction treatment of metal oxide or ironmaking waste and method for concentration and recovery zinc and/or lead |
| 05/11/2006 | CA2586941A1 Device for eliminating oversize pellets from balling disks |
| 05/10/2006 | CN1771340A Method for producing improved coal for use in metallurgy, and method for producing reduced metal and slag containing oxidized nonferrous metal |
| 05/10/2006 | CN1771339A direct smelting plant |
| 05/04/2006 | WO2006046606A1 Process for producing molten iron and apparatus therefor |
| 05/04/2006 | DE10207202B9 Verfahren zur metallurgischen Verwertung von metallhaltigen Schlämmen und Stäuben A method for metallurgical recovery of metal-containing dusts and sludges |
| 05/04/2006 | CA2584600A1 Method and apparatus for producing molten iron |
| 05/03/2006 | CN1766132A Method for operating rotary hearth type reducing furnace and rotary hearth type reducing furnace facilities |
| 05/02/2006 | US7037356 Method for operating rotary hearth type reducing furnace and rotary hearth type reducing furnace facilities |
| 05/02/2006 | CA2116749C Process for the direct reduction of iron oxide-containing materials withsolid carbonaceous reducing agents |
| 04/25/2006 | US7033417 Method and installation for reducing orefines in a multi-stage suspension gas stream using a cyclone separator |
| 04/19/2006 | CN1252287C Direct-fusing apparatus and method |
| 04/12/2006 | CN1250747C Method for producing a metal melt and corresponding multifunction lance |
| 04/12/2006 | CN1250746C Method and its device for feeding raw materials to movable hearth furnace |
| 03/30/2006 | US20060065071 reducing oxidic iron particles of the slag with the dissolved carbon of the reducing agent in iron melt to form metallic iron and CO, then oxidizing CO to CO2; forming environmentally compatible cement clinker substitute; low cost, avoid dust loss, lower CO2 emission |
| 03/21/2006 | US7014678 Use of oil-charged mill-scale in shaft furnaces and converters after chemical binding and pelleting thereof |
| 03/09/2006 | CA2578576A1 Production of ferro-alloys |
| 03/01/2006 | CN1742102A An improved smelting process for the production of iron |
| 02/23/2006 | US20060037436 smelting iron-containing source material, having iron present as oxide and/or a partially metalized state, in reactor containing molten bath having a slag phase, utilizing injection of fuel/reductant and oxygen-containing gas into slag to generate heating and reducing conditions |
| 02/22/2006 | EP1627084A1 Method for utilizing slag |
| 02/22/2006 | CN1738997A Seal structure of solid feeding screw, and method of manufacturing reduced metal using the seal structure |
| 02/15/2006 | CN1242075C Apparatus and method for recycling iron containing dust and sludge in puddling process using coal and fine iron ore |
| 02/08/2006 | CN2757074Y Iron-melting furnace |
| 02/08/2006 | CN2756962Y Smoke clearing and dust removing device for iron smelting furnace |
| 02/08/2006 | CN1730673A Slag cleaning furnace top-blown immersion technology |
| 02/08/2006 | CN1240851C Direct smelting process |
| 02/08/2006 | CN1240850C A process and apparatus for producing metals and metal alloys |
| 02/02/2006 | US20060021469 Process for producing molten iron |
| 02/01/2006 | CN1239715C Method for producing melt iron in electric furnace |
| 02/01/2006 | CN1239249C Melt reduction iron-smelting dimethyl ether production and power generation combined production method and installation |
| 01/25/2006 | EP1230403B1 A direct smelting process |
| 01/24/2006 | US6989042 Injecting feed materials of solids and carrier gas into a molten bath at a velocity of >/= 40 m/s |
| 01/18/2006 | EP1616968A1 Method for producing improved coal for use in metallurgy, and method for producing reduced metal and slag containing oxidized nonferrous metal |
| 01/04/2006 | CN1234878C Apparatus for injecting solid particulate material into vessel |
| 12/28/2005 | CN1233850C Direct smelting vessel and direct smelting process |
| 12/21/2005 | CN1711337A Apparatus and process for the treatment of a material under pyrolytical conditions, and use thereof |
| 12/20/2005 | US6977050 Synthesis of lignosulfonic acid-doped polyaniline using transition metal ion catalysts |
| 12/14/2005 | CN1231601C Method for producing liquid pig iron |
| 12/13/2005 | CA2108816C Process for producing molten pig iron or molten steel pre-products |
| 11/16/2005 | CN1227370C Method for self-heating fusion reduction of carbon containing pellet |
| 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 |
| 11/02/2005 | EP1591739A1 Seal structure of solid feeding screw, and method of manufacturing reduced metal using the seal structure |
| 10/26/2005 | EP1587962A1 An improved smelting process for the production of iron |