| Patents for C21B 13 - Making spongy iron or liquid steel, by direct processes (6,991) |
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| 07/25/2007 | EP1325160B1 Method and device for producing a static bed |
| 07/25/2007 | CN101006314A Equipment for measurement and control of load material or scrap feeding into a furnace and relative method |
| 07/18/2007 | EP1808498A1 Process for producing molten iron and apparatus therefor |
| 07/18/2007 | CN100999785A Process of enriching noble metal from iron refined mineral |
| 07/12/2007 | WO2007076896A1 Method for pre-heating iron agglomerates |
| 07/12/2007 | US20070157761 Use of an induction furnace for the production of iron from ore |
| 07/11/2007 | CN1995412A Environment-friendly type alumyte integrated smelting technology |
| 07/11/2007 | CN1995402A Method for directly reducing iron oxide to metallic iron by using coke oven gas and the like |
| 07/11/2007 | CN1325178C Electric stove dust elimination inside and outside discharge mixed abbreviated process |
| 07/10/2007 | CA2309611C Method for upgrading iron ore utilizing multiple magnetic separators |
| 07/05/2007 | WO2007075112A1 Metal and alloy melting device |
| 07/05/2007 | WO2007075025A1 Method for manufacturing molten irons by injecting a hydrocarbon gas and apparatus for manufacturing molten irons using the same |
| 07/05/2007 | WO2007075024A1 Apparatus for manufacturing molten irons |
| 07/05/2007 | WO2007075023A1 Method for manufacturing molten irons and apparatus for manufacturing molten irons |
| 07/05/2007 | WO2007075022A1 Apparatus for manufacturing molten irons |
| 07/05/2007 | CA2635545A1 Apparatus for manufacturing molten irons |
| 07/04/2007 | EP1802780A1 Apparatus for manufacturing compacted irons of reduced materials comprising fine direct reduced irons and apparatus for manufacturing molten irons using the same |
| 07/04/2007 | CN1990883A Melting gasifier and apparatus for manufacturing molten irons having the same |
| 07/04/2007 | CN1324149C An apparatus for manufacturing molten irons and manufacturing method using the same |
| 07/03/2007 | US7238445 Solid electrolyte with high ion conductivity and electrochemical system using the solid electrolyte |
| 06/27/2007 | EP1799875A1 Production of ferro-alloys |
| 06/27/2007 | CN2915876Y Enriched iron reduction tank |
| 06/21/2007 | US20070138714 Device for melting down metal-containing material |
| 06/21/2007 | US20070137435 Method and plant for the heat treatment of solids containing iron oxide using a fluidized bed reactor |
| 06/21/2007 | DE112005001881T5 Verfahren und Vorrichtung zum Herstellen von reinen reduzierenden Gasen aus Koksofengas Method and apparatus for the manufacture of pure reducing gases from coke oven gas |
| 06/19/2007 | US7232542 Preheating cold blast air of a blast furnace for tempering the hot blast temperature |
| 06/14/2007 | WO2007066350A1 A process for recovery of iron from copper slag |
| 06/14/2007 | WO2007065582A2 Conveying system, combined system, and method for coupling metallurgical processes |
| 06/14/2007 | CA2632530A1 A process for recovery of iron from copper slag |
| 06/14/2007 | CA2632075A1 Conveyor system, composite system and method for coupling metallurgical methods |
| 06/13/2007 | CN1321198C One-step blow on method for smelting electric furnace |
| 06/12/2007 | US7228960 Hot material conveyor |
| 06/06/2007 | CN1977055A Metallurgical processing installation |
| 06/06/2007 | CN1320128C Direct smelting container |
| 06/06/2007 | CN1319684C Method for preparing natural micro alloy iron powder from vanadium-titanium-iron headings by microwave radiation |
| 05/31/2007 | US20070119275 guiding and advancing the furnace angle during tapping by tilting the furnace; minimizes the amount of slag entrainment; transfer of molten steel from the furnace through the tapping hole to a receiving vessel; materials handling |
| 05/30/2007 | EP1276912B1 A direct smelting process and apparatus |
| 05/30/2007 | CN1970803A Process for smelting ferrovanadium by extraction of vanadium from vanadium-containing errophosphorus |
| 05/30/2007 | CN1318610C Method for optimizing layout and operation of reduction method |
| 05/24/2007 | US20070113708 Controlling retention time of oxides in moving hearth furnace; increasing nickel content; efficiency; consistancy; high grade alloy using low grade feedstock |
| 05/23/2007 | CN1317398C Start method for directly smelting technology |
| 05/22/2007 | CA2363102C Method for decreasing elutriation loss of fine iron ore in fluidized bed type reducing operation |
| 05/16/2007 | EP1784514A1 Apparatus for manufacturing compacted irons of reduced materials comprising fine direct reduced irons and apparatus for manufacturing molten irons using the same |
| 05/16/2007 | CN1965095A Support frame structure for supporting dispersion plate in fluid layer reduction furnace for reduction of iron ore |
| 05/16/2007 | CN1962883A Process for directly smelting and casting molten iron by using iron ore powder and cleaned coal |
| 05/16/2007 | CN1962880A Blast-furnace for reducing sponge iron |
| 05/16/2007 | CN1962483A Biological sponge iron preparation and its uses in water disposal |
| 05/16/2007 | CN1315567C Distributor bottom for the distribution of a gas charged with fine solid particles |
| 05/10/2007 | WO2007052621A1 Rotary hearth furnace and method of operating the same |
| 05/10/2007 | US20070101821 Method for pre-heating, transforming and melting a metal charge and relative plant |
| 05/09/2007 | EP1781829A1 Apparatus for manufacturing compacted irons of reduced materials comprising fine direct reduced irons and apparatus for manufacturing molten irons using the same. |
| 05/09/2007 | CN1961087A Direct reduction process using a single fluidised bed |
| 05/09/2007 | CN1961084A Direct reduction device and method |
| 05/09/2007 | CN1961083A Direct reduction device and method |
| 05/09/2007 | CN1961082A Direct reduction process |
| 05/09/2007 | CN1314817C Process for producing direct reduced iron with coal as reducer |
| 05/08/2007 | CA2213095C Process for converting iron oxide to iron carbide employing internally generated carbon oxide as the carbiding agent |
| 04/25/2007 | CN1312297C Nickel-containing sponge iron preparing method |
| 04/18/2007 | EP1774050A1 Apparatus for manufacturing molten irons by injecting fine coals into a melter-gasifier and the method using the same. |
| 04/17/2007 | US7204689 Seal structure of solid feeding screw, and method of manufacturing reduced metal using the seal structure |
| 04/12/2007 | US20070079666 Process and plant for reducing solids containing iron oxide |
| 04/11/2007 | CN1309845C Direct smelting furnace |
| 04/10/2007 | US7201868 Direct smelting plant |
| 04/05/2007 | DE4426623B4 Zweistufenverfahren zur Erzeugung von Eisencarbid aus Eisenoxid Two-stage process for the production of iron carbide from iron oxide |
| 04/04/2007 | EP1770175A1 Rotary hearth furnace for reducing oxides |
| 04/04/2007 | EP1438543B1 Rotary hearth furnace and screw thereof for discharging reduced iron |
| 04/04/2007 | CN1940092A Fuse reducing iron-smelting process for rotating furnace |
| 04/04/2007 | CN1308463C Direct smelting process and apparatus |
| 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 |
| 03/28/2007 | EP1766099A2 A direct reduction apparatus and process |
| 03/28/2007 | CN1936027A Method for producing titanium oxide containing slag |
| 03/21/2007 | EP1764420A2 Method of producing metallic iron and raw material feed device |
| 03/21/2007 | CN1934325A Method of building a direct smelting plant |
| 03/21/2007 | CN1934278A Direct smelting plant |
| 03/21/2007 | CN1306045C Method and apparatus for supply of granular reduced iron feedstock |
| 03/21/2007 | CN1306044C Method for producing titanium oxide containing slag |
| 03/20/2007 | US7192552 Facility for reducing metal oxide, method of operating the same, and shaped article of raw material for reducing furnace |
| 03/15/2007 | US20070057419 Apparatus and method for discharging molten metal |
| 03/14/2007 | EP1325159B1 A direct smelting process |
| 03/14/2007 | CN1930308A Ironmaking and steelmaking |
| 03/13/2007 | US7189940 Plasma-assisted melting |
| 03/08/2007 | US20070051203 Method for discharging reduced product from a movable-hearth furnace and a discharging device |
| 03/07/2007 | CN1926248A Direct smelting plant and process |
| 03/07/2007 | CN1303224C Method and device for the continuous production of steel using metal charge material |
| 02/28/2007 | EP1757885A2 Screw for discharging reduced iron |
| 02/28/2007 | EP1756324A1 Direct reduction process using a single fluidised bed |
| 02/28/2007 | EP1756322A2 A direct reduction process |
| 02/28/2007 | CN1922333A Direct smelting plant and process |
| 02/28/2007 | CN1302123C Method and apparatus for practicing carbonaceous-based metallurgy |
| 02/28/2007 | CN1302122C Reduction smelting method in a shaft furnace with recovery of volatile secondary metals |
| 02/21/2007 | EP1753883A1 A direct reduction process and apparatus |
| 02/21/2007 | CN1916189A Spray gun for direct melting of reduced puddling and its dynamic multi-gun furnace |
| 02/15/2007 | US20070034055 Method and apparatus for producing reduced metal |
| 02/14/2007 | EP1325156B1 Device for distributing a lumpy bulk material |
| 02/14/2007 | CN1300343C Sponge iron production method |
| 02/13/2007 | US7175690 Preheating feed material to a temperature of from about 200 C to about 500 C, without reduction, in a non-reducing atmosphere prior to charging the feed material to gas-based direct reduction furnace;thereby minimizing the formation of fines within the furnace |
| 02/13/2007 | CA2290618C Improving the flow field in the inlet plenum of a fluidised bed |
| 02/07/2007 | CN1908194A Method for direct steelmaking using mixture of iron oxide scale and anthracite smalls with electric furnace |
| 02/06/2007 | US7172640 Method and device for melting down metal-containing materials |
| 02/01/2007 | WO2005103306A3 Methods of using tires and scrap rubber in the manufacture and melting of steel and other metals |