| Patents for C21B 11 - Making pig-iron other than in blast furnaces (2,381) |
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| 10/15/2008 | CN101285128A Comprehensive reutilization method for laterite-nickel ore |
| 10/14/2008 | CA2262490C Method and device for producing silicon-rich foundry iron |
| 10/08/2008 | CN101280349A High-temperature burden guiding device between pre-reducing furnace and final-reducing furnace |
| 10/02/2008 | US20080237945 Apparatus for injecting material into a vessel |
| 10/02/2008 | US20080236335 conveying hot direct reduced iron from a direct reduction shaft furnace or direct reduced iron reheating furnace, to hot briquetting plant by gravity and a second hot direct reduced iron stream, to an adjacent melting furnace, by gravity and/or a horizontal charge conveyor |
| 09/24/2008 | CN101270450A Ferro-nickel alloy and smelting method |
| 09/24/2008 | CN101270401A Pure oxygen non-blast furnace ironmaking end reduction furnace oxygen wind gap apparatus |
| 09/24/2008 | CN101270310A Moulded coal for ironmaking technique of fusion and reduction |
| 09/17/2008 | CN101265510A Fusion reduction reaction furnace and fusion smelting method for metal |
| 09/10/2008 | CN101260447A Pre-reducing furnace for non-blast-furnace iron smelting |
| 09/10/2008 | CN101260446A End reducing furnace for non-blast-furnace iron smelting |
| 09/03/2008 | CN101254861A Fine coal dense phase conveying system of fusion reducing furnace |
| 08/28/2008 | US20080202061 Direct Smelting Plant |
| 08/20/2008 | EP1863943A4 Operation of iron oxide recovery furnace for energy savings, volatile metal removal and slag control |
| 08/20/2008 | EP1587962A4 An improved smelting process for the production of iron |
| 08/19/2008 | US7413592 Linear hearth furnace system and methods regarding same |
| 08/06/2008 | CN101237727A Power control Method and power device in electronic optical circuit system of electronic bundle impact furnace |
| 08/06/2008 | CN100408699C 直接熔炼设备 Direct smelting plant |
| 07/31/2008 | WO2008091773A1 Continuous production of titanium by the metallothermic reduction of ticl4 |
| 07/30/2008 | EP1948833A2 Method for the operation of a shaft furnace, and shaft furnace suitable for said method |
| 07/23/2008 | EP1591739B1 Seal structure of solid feeding screw, and method of manufacturing reduced metal using the seal structure |
| 07/02/2008 | EP1740728A4 Metallurgical processing installation |
| 07/02/2008 | CN100398667C Method for utilizing slag |
| 07/01/2008 | US7393379 Inserting the tires at a slower rate into an electric arc furnace and separate from the scrap steel, as compared to batch feeding them or feeding them as tires and scrap steel bundles, so that larger quantities of tires at a specific controlled location and time may be used |
| 06/26/2008 | DE102006062689A1 Vertical shaft furnace for production of directly reduced iron, has furnace gas outlet whose central axis is slanted with regard to horizontal axis of shaft furnace by preset angle |
| 06/25/2008 | CN100396797C Slag cleaning furnace top-blown immersion technology |
| 06/18/2008 | CN101203619A Operation of iron oxide recovery furnace for energy savings, volatile metal removal and slag control |
| 06/11/2008 | EP1929051A2 Ore reduction process and titanium oxide and iron metallization product |
| 06/10/2008 | US7384594 Method for the pyrometallurgical treatment of metals, metal melts and/or slags and injection device |
| 06/05/2008 | US20080127778 Feed powdery carbonaceous reducing agent, iron oxide and calcium oxide into moving-hearth reducing furnace; 30 kg or more per ton of carbonaceous to molten iron for effectively increasing the metallization ratio of solid reduced iron; magnesium oxide to suppress refractory wear |
| 05/22/2008 | WO2008059691A1 Process for production of granular metallic iron and equipment for the production |
| 05/02/2008 | WO2008051356A2 Microwave heating method and apparatus for iron oxide reduction |
| 04/17/2008 | US20080087135 Microwave heating method and apparatus for iron oxide reduction |
| 04/01/2008 | CA2332724C Apparatus for injecting solid particulate material into a vessel |
| 03/25/2008 | CA2324166C Cold bonded iron particulate pellets |
| 03/20/2008 | US20080069763 Method for manufacturing titanium oxide-containing slag |
| 03/19/2008 | EP1900828A1 Method for producing feed material for molten metal production |
| 02/14/2008 | WO2008018807A1 Electrode system |
| 01/24/2008 | US20080017085 Vertical Shaft Melting Furnace |
| 01/22/2008 | CA2261140C Metal reduction and melting process |
| 01/17/2008 | WO2006107715A3 Operation of iron oxide recovery furnace for energy savings, volatile metal removal and slag control |
| 01/16/2008 | EP1340822B1 Method for operating rotary hearth type reducing furnace and rotary hearth type reducing furnace facilities |
| 01/09/2008 | CN100360688C Direct smelting method and equipment |
| 01/03/2008 | WO2006107332A3 Linear hearth furnace system and methods regarding same |
| 12/26/2007 | CN101092655A Melting reduction method for iron ore |
| 12/26/2007 | CN101092654A Melting method for dephosphorization under reducing atmosphere for high phosphate ore |
| 12/21/2007 | WO2007145972A2 Pre- processing materials using encapsulation technologies |
| 12/20/2007 | US20070290419 Metallurgical Processing Installation |
| 12/19/2007 | CN100355911C Method for operating rotary hearth type reducing furnace and rotary hearth type reducing furnace facilities |
| 12/12/2007 | EP1863943A2 Operation of iron oxide recovery furnace for energy savings, volatile metal removal and slag control |
| 12/05/2007 | CN101082067A Comprehensive utilization technique for low-grade laterite nickel ore |
| 11/28/2007 | CN101078052A Method for synthetically reclaiming iron and non-ferrous metal from solid waste of iron and steel plant |
| 11/22/2007 | WO2007133050A1 Method for manufacturing molten irons by injecting a hydrocarbon gas and apparatus for manufacturing molten irons using the same |
| 11/22/2007 | WO2007082030A3 Use of an induction furnace for the production of iron from ore |
| 11/22/2007 | US20070266824 Using a slag conditioner to beneficiate bag house dust from a steel making furnace |
| 11/15/2007 | WO2007129927A1 Method for continuously processing iron oxide-containing materials and a unit for carrying out said method |
| 11/15/2007 | US20070261321 Method of Building a Direct Smelting Plant |
| 11/15/2007 | DE102006022410A1 Verfahren zum kontinuierlichen Einschmelzen von kleinstückigen Eisenträgern A method for the continuous melting of small-sized iron girders |
| 11/15/2007 | DE102006022409A1 Die Erfindung betrifft ein Verfahren zur Erhöhung des Schrotteinsatzes bei der Stahlherstellung in einem bodenblasenden Konverter The invention relates to a method for increasing the scrap use in steel making in a bottom-blowing converter |
| 11/14/2007 | EP1320633B1 A direct smelting process and apparatus |
| 11/14/2007 | CN101070558A Baking-melting reduction iron smelting method, apparatus and raw amterial |
| 11/07/2007 | EP1658467B1 Electric reducing furnace |
| 11/07/2007 | CN100347506C Method and device for distributing lumpy bulk material |
| 11/01/2007 | WO2007122928A1 Process for producing molten iron and apparatus for producing molten iron |
| 10/31/2007 | CN100345981C Direct smelting plant and process |
| 10/18/2007 | WO2007098551A9 Direct smelting plant |
| 10/17/2007 | CN101056997A Device for removing particles on the sieve from palletizing prilling disk |
| 10/17/2007 | CN100343396C Method of producing molten iron in duplex furnaces |
| 10/16/2007 | US7282172 Vertical shaft melting furnace |
| 10/10/2007 | CN100342036C Direct smelting process and apparatus |
| 10/03/2007 | CN101048516A Process for producing molten iron and apparatus therefor |
| 09/13/2007 | WO2007054308A3 Method for the operation of a shaft furnace, and shaft furnace suitable for said method |
| 09/12/2007 | CN101035920A Production of ferro-alloys |
| 09/12/2007 | CN101033841A Oxidant-swirled fossil fuel injector for a shaft furnace |
| 09/12/2007 | CN100336915C One and half step melting deacidizing iron-smelting method |
| 09/07/2007 | WO2007098551A1 Direct smelting plant |
| 09/07/2007 | CA2642674A1 Direct smelting plant |
| 08/22/2007 | CN101023311A Smelting apparatus |
| 08/16/2007 | US20070186723 Method to increase the adherence of coating materials on ferrous materials |
| 08/15/2007 | EP1292713B1 Direct smelting process and apparatus |
| 08/15/2007 | CN101016575A Direct smelting production method for continuous casting bakie high calcium-aluminum series protection slag |
| 08/07/2007 | CA2236587C Duplex procedure for the production of metals and metal alloys from oxidic metal ores |
| 08/01/2007 | EP1813685A2 Method of operation of reducing rotary hearth furnace and reducing rotary hearth furnace facility |
| 07/26/2007 | WO2007083450A1 Process for producing metallic iron |
| 07/25/2007 | EP1325160B1 Method and device for producing a static bed |
| 07/18/2007 | EP1808498A1 Process for producing molten iron and apparatus therefor |
| 07/12/2007 | US20070157761 Use of an induction furnace for the production of iron from ore |
| 07/05/2007 | WO2007075112A1 Metal and alloy melting device |
| 06/27/2007 | EP1799875A1 Production of ferro-alloys |
| 06/19/2007 | US7232542 Preheating cold blast air of a blast furnace for tempering the hot blast temperature |
| 06/06/2007 | CN1977055A Metallurgical processing installation |
| 05/30/2007 | EP1276912B1 A direct smelting process and apparatus |
| 05/23/2007 | CN1317398C Start method for directly smelting technology |
| 04/17/2007 | US7204689 Seal structure of solid feeding screw, and method of manufacturing reduced metal using the seal structure |
| 04/11/2007 | CN1309845C Direct smelting furnace |
| 04/03/2007 | USRE39536 Metal carriers are melted in a bed of carbon-containing material in the presence of oxygen or oxygen-containing gas, and with the simultaneous formation of a reducing gas |
| 04/03/2007 | US7198658 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 |
| 03/29/2007 | US20070068344 Ore reduction process and titanium oxide and iron metallization product |
| 03/28/2007 | CN1936027A Method for producing titanium oxide containing slag |
| 03/28/2007 | CN1307317C Iron ore briquetting |