| Patents for C21B 13 - Making spongy iron or liquid steel, by direct processes (6,991) |
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| 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 |
| 01/24/2007 | EP1565585A4 Process and apparatus for extracting zinc |
| 01/17/2007 | CN1896286A Direct iron-reduction by iron-ore briquet self-production reproduced gas |
| 01/17/2007 | CN1295362C Method and installation for utilizing waste products, which contain hydrocarbons and iron oxide particularly mill scale sludges and coal fines |
| 01/17/2007 | CN1295350C Lotus form furnace and preparing method for sponge iron |
| 01/11/2007 | US20070009373 Mold powder for continuous casting of steel |
| 01/10/2007 | EP1740729A2 Combined pre-treatment process for enabling feed material to be charged in direct reduction processes |
| 01/10/2007 | EP1740728A1 Metallurgical processing installation |
| 01/10/2007 | CN1894426A Method and apparatus for producing molten iron |
| 01/10/2007 | CN1294281C Method for producing reduced iron |
| 01/10/2007 | CN1294280C Method for producing granulated metal iron |
| 01/09/2007 | US7160501 Method for the salt-free, non-oxidizing remelting of aluminium |
| 01/09/2007 | US7160353 Process for producing molten iron |
| 01/03/2007 | EP1434888B1 Supplying solid feed materials for a direct smelting process |
| 01/03/2007 | EP1342043B1 Method for introducing a granular ore into a roasting kiln |
| 01/03/2007 | EP1187941B1 Method of producing metallic iron |
| 01/03/2007 | CN1888086A Technological process and apparatus for heating high concentration CO and other reducing gas |
| 01/02/2007 | CA2371159C Fluidized bed reduction of laterite fines with reducing gases generated in situ |
| 12/28/2006 | WO2006138031A2 Process for removing metal species in the presence of hydrogen and a porous material and polyester polymer containing reduced amounts of metal species |
| 12/28/2006 | WO2006135984A1 Production of iron |
| 12/21/2006 | WO2006092549A3 Process and plant for gas-based direct steelmaking |
| 12/21/2006 | WO2005104708A3 Method and apparatus for gasifying waste automotive tires to produce high quality solid carbon and non-condensable synthesis gas |
| 12/20/2006 | EP1734321A1 Process and shaft furnace for heating and melting down waste materials such as shredded scrap |
| 12/20/2006 | EP1733060A1 Metal scrap submergence apparatus |
| 12/20/2006 | EP1226283B1 High temperature premelting apparatus |
| 12/19/2006 | US7150777 to recover valuable gases at any pressure in a process, including the recovery from high vacuum level container in the last stage of gas recovering; prevents quenching gas from being lost to the atmosphere; receiver vessel is able to maintain constant pressure by means of changing its volume |
| 12/14/2006 | US20060278041 Method for producing improved coal for use in metallurgy, and method for producing reduced metal and slag containing oxidized nonferrous metal |
| 12/14/2006 | US20060278040 Process for producing reduced matal and agglomerate with carbonaceous material incorporated therein |
| 12/14/2006 | US20060278039 Process for removing metal species in the presence of hydrogen and a porous material and polyester polymer containing reduced amounts of metal species |
| 12/13/2006 | CN1876849A Ironmaking method |
| 12/13/2006 | CN1289693C Iron production method of operation in a rotary hearth furnace and improved furnace apparatus |
| 12/07/2006 | US20060273497 Method and installation for utilizing hydrocarbon-containing and iron-oxide-containing waste materials, in particular rolling scale sludges, and fine coals |
| 12/05/2006 | US7144447 Method and device for treating particulate material |
| 11/29/2006 | EP1725688A1 Direct smelting plant |
| 11/29/2006 | CN1871366A Method and apparatus for reducing metal-oxygen compounds |
| 11/29/2006 | CN1871364A Direct smelting plant and process |
| 11/29/2006 | CN1869251A Method for producing direct reduction iron using iron-contained waste material as raw material |
| 11/28/2006 | US7141205 Method for discharging reduced product from a movable-hearth furnace and a discharging device |
| 11/23/2006 | WO2006089971A3 Electric arc furnace |
| 11/23/2006 | US20060260435 Method for producing foamed slag on high-chromium melts in an electric furnace |
| 11/22/2006 | CN1865459A Novel binding agent for normal temperature pelletized and cured iron-containing mud cold-cured pellet |
| 11/16/2006 | WO2006119575A1 Cold start-up method for a direct smelting process |
| 11/16/2006 | CA2606800A1 Cold start-up method for a direct smelting process |
| 11/15/2006 | EP1163567A4 Mass generation of individual virtual servers, virtual web sites and virtual web objects |
| 11/15/2006 | CN1861810A Producing process of directly reducing iron |
| 11/15/2006 | CN1861809A Process of mfg. iron by hematite or aetite melting direct reduction |
| 11/15/2006 | CN1284866C Process for reducing metal-containing, in particular iron-ore-containing, particulate material |
| 11/14/2006 | CA2207163C Process for making pig iron |
| 11/09/2006 | US20060248981 Granular metallic iron |
| 11/09/2006 | US20060248979 Gate latch |
| 11/08/2006 | EP1718776A1 Ironmaking and steelmaking |
| 11/08/2006 | EP1718775A2 Pre-treatment process for feed material for direct reduction process |
| 11/08/2006 | CN1858264A Method for producing iron powder by directly reducing hematite or limonite |
| 11/08/2006 | CN1283906C Work recovery from process involving steam generation |
| 11/02/2006 | WO2006113969A1 Forehearth |
| 11/02/2006 | EP1072855B1 Multichamber division type fluidized bed furnace |
| 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 |
| 10/26/2006 | WO2006111574A1 Reduction furnace |
| 10/26/2006 | WO2006111329A1 Rotary hearth furnace and method for operating the same |
| 10/26/2006 | WO2006110949A1 Hot metal supply apparatus |
| 10/26/2006 | DE112004001991T5 Direktschmelzanlage und -verfahren Direct smelting plant and procedures |
| 10/25/2006 | EP1713940A1 A method for manufacturing briquettes directly using coal with wide range of size, the method using the same and the apparatus using the same |
| 10/25/2006 | CN1852995A An apparatus for manufacturing a molten iron directly using fine or lump coals and fine iron ores, the method thereof, the integrated steel mill using the same and the method thereof |
| 10/25/2006 | CN1850998A Method for direct making iron using induction furnace |
| 10/25/2006 | CN1850997A Method for direct making steel using induction furnace |
| 10/25/2006 | CN1850996A Method for direct making iron and steel by converter using waste iron and steel furnace burden |
| 10/19/2006 | WO2006108691A1 Equipment for measurement and control of load material or scrap feeding into a furnace and relative method |
| 10/19/2006 | US20060230880 Method and plant for the heat treatment of solids containing iron oxide |
| 10/19/2006 | US20060230879 Method and plant for the heat treatment of sulfidic ores using annular fluidized |
| 10/19/2006 | CA2604767A1 Equipment for measurement and control of load material or scrap feeding into a furnace and relative method |
| 10/12/2006 | WO2006107256A1 A method for separating metallic iron from oxide |
| 10/12/2006 | WO2006105578A1 Apparatus for injecting solid particulate material into a vessel |
| 10/05/2006 | US20060220281 Online measurement of molten phases |
| 10/05/2006 | US20060218753 Agglomerating a metal oxide, a carbonaceous material and an organic binder, drying; pellets exhibit great strength after drying |
| 10/04/2006 | CN1842605A An apparatus for manufacturing compacted irons of reduced materials comprising fine direct reduced irons and an apparatus for manufacturing molten irons using the same |
| 10/04/2006 | CN1842604A Self-reducing, cold-bonded pellets |
| 10/04/2006 | CN1840712A Smelting reduction furnace coal-injection process |
| 10/03/2006 | CA2374700C Method of producing metallic iron and raw material feed device |
| 09/27/2006 | EP1276913B1 Method and installation for producing a metal melt |
| 09/20/2006 | EP1576198A4 An apparatus for manufacturing moltens irons to improve operation of fluidized bed type reduction apparatus and manufacturing method using the same |
| 09/20/2006 | CN1276097C Method and apparatus for supplying granular raw material for reduced iron |
| 09/20/2006 | CN1276096C Gas base reduction iron-smelting method and apparatus |
| 09/19/2006 | CA2372378C Method for producing reduced iron |
| 09/19/2006 | CA2346977C Method of producing molten iron in duplex furnaces |
| 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 | CA2260202C Process for charging of metal carrying materials in a melt gasifier |
| 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 |
| 09/13/2006 | EP1573076A4 An apparatus for manufacturing molten irons by hot compacting fine direct reduced irons and calcined additives and method using the same |
| 09/13/2006 | CN1274852C Process for preparing sponge iron containing nickle |
| 09/08/2006 | WO2006092549A2 Process and plant for gas-based direct steelmaking |
| 09/07/2006 | US20060196312 heating iron ore to form an oxidizing metal bath, then forming a carbonaceous slag layers on the metal bath, removing phosphoros from the slag layer and adding alloying metals to the melts to form steels |
| 09/07/2006 | US20060196311 combusting carbon monoxide, oxygen and iron ore to form an oxidizing metal bath, then forming a carbonaceous slag layers on the metal bath, removing phosphoros from the slag layer and adding alloying metals to the melts to form steels |
| 09/07/2006 | DE102005010050A1 Metal sponge production by reacting metal ore with a reducing gas comprises heating the reducing gas in stages, the temperature in the first stage being directly proportional to the carbon dioxide content |
| 09/06/2006 | CN1829891A Electric reducing furnace |
| 09/06/2006 | CN1827787A Method for preparing ferrotitanium by molten titanium slag |