| Patents for C21B 13 - Making spongy iron or liquid steel, by direct processes (6,991) |
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| 01/23/2013 | CN202688357U Double-cylinder rotary kiln for direct reduced iron production |
| 01/23/2013 | CN1742102B An improved smelting process for the production of iron |
| 01/23/2013 | CN102888235A Device and method for performing pyrolysis on solid fuel and performing reductive coupling on iron ore |
| 01/22/2013 | CA2738288C Method of coal gasification and direct ironmaking and system therefor |
| 01/16/2013 | CN102876828A Reducing gas purification process and system matched with gas-based shaft furnace |
| 01/16/2013 | CN102200392B Forehearth |
| 01/15/2013 | CA2448381C Method for manufacturing metal nuggets |
| 01/09/2013 | EP2542706A1 Apparatus and methods for producing direct reduced iron |
| 01/09/2013 | EP2542705A1 Method and device for producing pressed articles |
| 01/09/2013 | CN102869793A Method and device for producing at least partially reduced metal ores and/or metals |
| 01/09/2013 | CN102864301A Automatic production line of directly-reduced ferronickel |
| 01/09/2013 | CN102864266A Gas base shaft-furnace direct reduction method for strengthening iron ore pellets |
| 01/09/2013 | CN102864265A Method for recycling gas-base direct reducted tail gas |
| 01/09/2013 | CN102864264A Method and device for preventing metalized pellets from bonding |
| 01/09/2013 | CN102329911B Process for manufacturing iron pellets from low-grade complex refractory ore through molten slag method |
| 01/09/2013 | CN101466853B Process for recycling of steel industry iron bearing by-products, pellet obtained in that process and use thereof |
| 01/02/2013 | CN202643726U Reduction furnace for coal-based direct reduction iron |
| 01/02/2013 | CN102851434A 直接熔炼设备 Direct smelting plant |
| 01/02/2013 | CN102851427A Method for online production of sponge iron by using steel residue waste heat |
| 01/02/2013 | CN102851426A Direct reduction process for producing spongy iron from CH4-rich coal gas |
| 01/02/2013 | CN102851425A Method for high-efficiency separation and comprehensive utilization of iron, aluminum and sodium in high-iron red mud |
| 01/02/2013 | CN101772582B Lance for injecting solid material into a vessel |
| 12/27/2012 | WO2012176654A1 Moving-hearth furnace |
| 12/27/2012 | WO2012175313A1 Device for the closed-loop control of process gases in a plant for producing directly reduced metal ores |
| 12/27/2012 | US20120325053 Apparatus and methods for producing direct reduced iron |
| 12/27/2012 | CA2839975A1 Device for the closed-loop control of process gases in a plant for producing directly reduced metal ores |
| 12/26/2012 | CN102839250A Method for collecting high-quality coal gas in process of producing reduced iron powder by means of microwave heating |
| 12/26/2012 | CN102839249A Method for producing iron fine powder by directly reducing high-iron red mud with rotary hearth furnace |
| 12/26/2012 | CN101023023B Method and apparatus for producing clean reducing gases from coke oven gas |
| 12/20/2012 | WO2011151020A8 Process and plant for producing hot metal |
| 12/19/2012 | CN102828055A Method for producing nickel iron from lateritic nickel ore |
| 12/19/2012 | CN102827985A Method for preparing novel excellent fine granule trace alloy iron powder |
| 12/19/2012 | CN102094095B Method for quickly separating and directly reducing iron slag |
| 12/19/2012 | CN102080929B Distributing device for rotary hearth furnace |
| 12/13/2012 | US20120313300 Process and apparatus for producing metals and/or primary metal products |
| 12/12/2012 | CN202595178U Control device for optimized distribution of coal gas flow of shaft furnace |
| 12/12/2012 | CN102816885A Iron-making, steel-making and direct fusing reduction integrated blast furnace technology |
| 12/12/2012 | CN101824504B Method for preparing carbon-iron alloy with hydrogen, steam and combustible through thermal circulation |
| 12/12/2012 | CN101358257B Microwave iron-making furnace |
| 12/06/2012 | WO2012163628A1 Reduction of metal oxides using a gas stream containing both hydrocarbon and hydrogen |
| 12/06/2012 | CA2837611A1 Reduction of metal oxides using a gas stream containing both hydrocarbon and hydrogen |
| 12/05/2012 | EP1439236B1 Method for drying molding containing oxidized metal, method for reducing oxidized metal and rotary hearth type metal reduction furnace |
| 12/05/2012 | CN102808059A Rotary hearth furnace thermal control method for directly reducing carbon-containing pellets |
| 12/05/2012 | CN102808058A Furnace pressure control structure of rotary hearth furnace |
| 12/05/2012 | CN102808057A Coal base direct reduction iron process of external heating horizontal channel type furnace |
| 12/05/2012 | CN101151380B Method and system for producing metallic iron nuggets |
| 11/28/2012 | CN102803523A Carbon-material-containing iron oxide briquette composition, method for producing same, and method for producing reduced iron using same |
| 11/28/2012 | CN102796839A Technique for producing direct reduced iron and synchronously performing desulfurization through reduction roasting of sulfate slag |
| 11/28/2012 | CN102146490B Reduction iron making method and device |
| 11/27/2012 | CA2566320C A direct reduction apparatus and process |
| 11/27/2012 | CA2510930C Method and plant for the heat treatment of solids containing iron oxide |
| 11/22/2012 | WO2012156243A1 Method and device for charging coal-containing material and iron carrier material |
| 11/22/2012 | CA2836355A1 Method and device for charging coal-containing material and iron carrier material |
| 11/21/2012 | EP2524061A1 Method and device for reducing iron ore-containing feed materials or for producing pig iron or liquid steel pre-products |
| 11/21/2012 | CN202543160U Coke-oven gas comprehensive utilization device |
| 11/21/2012 | CN102787196A Method for smelting stainless steel by direct reduced iron |
| 11/21/2012 | CN102787195A Stainless-steel smelting method |
| 11/21/2012 | CN102787194A Method for preparing titanium-rich material by directly reducing molten slag from vanadium-titanium-ferrum concentrate |
| 11/21/2012 | CN102787193A Coking reduction smelting device |
| 11/21/2012 | CN102329910B Method for industrial production of reduced iron through coal-based process |
| 11/21/2012 | CN101935733B Apparatus for manufacturing molten irons by injecting fine coals into a melter-gasifier and the method using the same |
| 11/21/2012 | CN101907104B DCS (Distributed Control System) control method for cooling fan of COREX slag powder grinding system |
| 11/20/2012 | US8313552 Method for the production and the melting of liquid pig iron or of liquid steel intermediate products in a melt-down gasifier |
| 11/20/2012 | US8312786 Shift-lock mechanism for automatic transmission shifter |
| 11/15/2012 | WO2012152744A1 Method and device for discharging dust particles from a dust line |
| 11/14/2012 | CN202530107U Refractory iron ore processing equipment |
| 11/14/2012 | CN202530106U Tunnel muffle sponge iron production equipment with recyclable gas device |
| 11/14/2012 | CN102782162A Method and device for producing pressed articles |
| 11/14/2012 | CN102776364A Process for recovering titanium and iron from titanomagnetite tailings |
| 11/14/2012 | CN102776309A Treatment method of zinc-bearing dust for steel works |
| 11/13/2012 | US8309016 Shaft furnace and method for operating a furnace |
| 11/13/2012 | US8308844 Method of reduction treatment of metal oxides or steelmaking waste and method of concentrating and recovering zinc and/or lead |
| 11/13/2012 | CA2720896C Titanium oxide-containing agglomerate for producing granular metallic iron |
| 11/08/2012 | WO2012150097A1 Process and plant for the production and further treatment of fuel gas |
| 11/08/2012 | WO2012149668A1 Process for producing reduced iron powder in two steps |
| 11/08/2012 | WO2012149635A1 Process of the production and refining of low-carbon dri (direct reduced iron) |
| 11/07/2012 | EP2520674A1 Apparatus for manufacturing molten iron |
| 11/07/2012 | CN102766718A Method for producing sponge iron and zinc-rich materials by blast furnace zinc-containing ash |
| 11/07/2012 | CN102766717A Method for treating high phosphorus ore by using direct reduction process |
| 10/31/2012 | EP2516684A1 Method and device for providing reduction gas from generator gas |
| 10/31/2012 | CN202509101U Water seal tank sludge discharge device of rotary hearth furnace |
| 10/31/2012 | CN202509100U Device for continuous iron making by smelting reduction |
| 10/31/2012 | CN102762748A Molten iron manufacturing apparatus for reducing emissions of carbon dioxide |
| 10/31/2012 | CN102758048A Joint production process of crude fuel hot charging and total heat oxygen blast furnace and vertical furnace |
| 10/31/2012 | CN102758047A Process for joint production of total-heat-oxygen blast furnace and shaft furnace |
| 10/31/2012 | CN102758046A Shortened production equipment and method of coal-based direct reduced iron |
| 10/31/2012 | CN102051430B Method for representing high-phosphorus iron ore dynamic reaction stage |
| 10/31/2012 | CN101956038B Process method and device for performing lower-carbon ironmaking and steelmaking through melting reduction of iron ore |
| 10/30/2012 | US8298317 Ironmaking and steelmaking |
| 10/24/2012 | CN202499875U Dual-layer furnace charge radial equal-thickness distributing machine for rotary hearth furnace |
| 10/24/2012 | CN102747179A Method for preparing direct reduction iron by using lignite char as reducing agent |
| 10/24/2012 | CN102747178A Raw material used for preparing carbon steel, its preparation method, and carbon steel |
| 10/24/2012 | CN102021261B Method for preparing iron ingots and co-producing cadmium sulfate and copper sulfate from mixed iron slag through arc method |
| 10/18/2012 | US20120263619 Method for preparing a metallic article having an other additive constituent, without any melting |
| 10/17/2012 | EP2511387A2 Method of setting temperature of continuous heating furnace and method of controlling furnace temperature |
| 10/17/2012 | CN202492533U Full-automatic vertical type sponge iron reduction furnace |
| 10/17/2012 | CN102732662A Slag-free production process using bauxite or red mud |
| 10/16/2012 | US8287621 Use of bimodal carbon distribution in compacts for producing metallic iron nodules |
| 10/12/2012 | DE202007019472U1 Schachtofen Shaft furnace |
| 10/10/2012 | CN202482343U Device used for cooling direct reduction iron |