Patents
Sitemap › C21 - Metallurgy of iron › C21B - Manufacture of iron or steel › C21B 13 - Making spongy iron or liquid steel, by direct processes
Patents for C21B 13 - Making spongy iron or liquid steel, by direct processes (6,991)
10/2012
10/10/2012CN202482342U Steam exhaust device for production of rotary hearth furnace
10/10/2012CN102719676A Method for rapidly reducing copper slags to produce iron-copper alloys in kiln in reducing atmosphere
10/10/2012CN102719587A Rotary hearth furnace-smelting reduction furnace joint ironmaking process
10/10/2012CN102719586A Device and method for uniformly distributing materials for rotary hearth furnace
10/10/2012CN102719585A Method for improving heat efficiency of rotary hearth furnace and lowering smoke quantity
10/09/2012CA2663831C Method and apparatus for manufacturing granular metallic iron
10/04/2012WO2012130091A1 Iron ore reducing agent, iron ore mixture, and method for reducing iron ore
10/04/2012DE102010022773B4 Verfahren und Anlage zur Erzeugung von Roheisen Method and apparatus for producing pig iron
10/03/2012CN102712959A Method for producing direct reduced iron with limited CO2 emissions
10/03/2012CN102703635A Direct reduction ironmaking method by electric furnace
10/03/2012CN102061397B Method for recycling vanadium, chromium, titanium and iron from vanadium-titanium magnetite ore
10/02/2012US8277536 Process for producing molten iron and apparatus for producing molten iron
10/02/2012CA2513193C Apparatus for injecting solid particulate material into a vessel
09/2012
09/27/2012WO2012126055A1 Direct smelting process for high sulphur feed
09/27/2012DE102011014894A1 Melting material, comprises filling first material to be melted in induction furnace to first level below maximum filling level of crucible, and refilling second material to be melted in dependence on power consumption of furnace
09/27/2012DE102009038052B4 Verhüttungsverfahren durch Einsatz eines vorreduzierten Ilmeniterzstromes und/oder Hämatiterzstromes Smelting by using a pre-reduced Ilmeniterzstromes and / or Hämatiterzstromes
09/26/2012CN102695808A Method and device for reducing iron ore-containing feed materials or for producing pig iron or liquid steel pre-products
09/26/2012CN102690921A Method for comprehensively utilizing vanadium titano-magnetite by melting and separating through reduction-fuel smelting furnace of rotary hearth furnace
09/26/2012CN102690920A Iron ore reducing agent, iron ore mixture and method for reducing iron ore
09/26/2012CN102051429B Method for increasing medium-pressure carbonylation rate of sponge iron
09/26/2012CN101910422B Apparatus and method for recovering excess gas generated in ironmaking process
09/25/2012CA2566318C A direct reduction process
09/20/2012WO2012125011A1 Method for processing raw material comprising non-ferrous metals and iron
09/20/2012WO2012123320A1 Metallurgical plant with efficient waste-heat utilization
09/20/2012CA2830210A1 Metallurgical plant with efficient waste-heat utilization
09/19/2012EP2500441A1 Metallic iron nuggets
09/19/2012CN102676724A Method for manufacturing sponge iron
09/19/2012CN102676723A Method for smelting ash iron by using cupola furnace
09/19/2012CN101792859B Method for extracting multiple metals
09/18/2012CA2702715C Producing method of direct reduced iron
09/13/2012WO2012091414A3 Device for manufacturing reduced iron using syngas and method for manufacturing reduced iron using same
09/12/2012CN202430249U Side-blown oxygen-coal lance for fusing reduction reactor with annual output of ten thousand tons
09/12/2012CN202430248U Bottom blowing gas system for bath smelting reduction ironmaking
09/12/2012CN102660672A Process for smelting low-grade laterite
09/12/2012CN102127611B Method for reducing vanadium-titanium magnetite powder by coal reducing gas and fluidized beds
09/11/2012US8262766 Method for reducing chromium containing raw material
09/07/2012WO2012091437A3 Integrated steel manufacturing system and method for integrated steel manufacturing
09/07/2012WO2012091422A3 Device for manufacturing reduced iron using nuclear reactor and method for manufacturing reduced iron using same
09/05/2012CN202415586U Cooling device for direct reduction iron
09/05/2012CN102656284A Method and device for providing reduction gas from generator gas
09/05/2012CN102656283A Apparatus for manufacturing molten iron
09/05/2012CN102653805A Submerged arc plasma smelting ironmaking method
09/05/2012CN102653804A Method for producing granular iron by magnetically roasting and reducing low-quality limonite with rotary hearth furnace
09/05/2012CN102206724B Method for coproducing directly reduced iron in process of coke dry quenching by coke oven gas
09/05/2012CN102127610B Ironmaking equipment and process for direct smelting reduction of iron ore
09/05/2012CN102061350B Short-process comprehensive red mud utilization method and equipment
09/05/2012CN102010924B Method for producing directly reduced iron from coal
09/05/2012CN101871030B Production process of byproduct iron of thermal power plant and reduction kiln thereof
09/05/2012CN101790590B Process for producing reduced iron pellets, and process for producing pig iron
09/05/2012CN101528949B Process for production of granular metallic iron and equipment for the production
08/2012
08/28/2012CA2583493C Apparatus for manufacturing compacted irons of reduced materials comprising fine direct reduced irons and apparatus for manufacturing molten irons using the same
08/27/2012DE202007019452U1 Schachtofen Shaft furnace
08/23/2012WO2012067462A3 Apparatus for manufacturing molten iron and method for manufacturing molten iron using same
08/22/2012EP2488810A1 Method and device for feeding into a smelting unit
08/22/2012EP2032726B1 Method and furnace for melting steel scrap
08/22/2012CN102643944A Energy-conservation high-efficiency reduction sponge iron tunnel kiln
08/22/2012CN102643943A Rotary hearth furnace direct reduction process using oxygen enrichment and pulverized coal
08/22/2012CN102643942A Reduction kiln equipment and method for directly reducing iron
08/22/2012CN102642027A Process for producing reduced iron powder
08/22/2012CN102051426B Method and device for smelting iron by reduction
08/21/2012CA2511731C An improved fluidized bed apparatus for molten iron production and method using the same
08/16/2012WO2012106769A1 Direct smelting process
08/16/2012CA2826469A1 Direct smelting process
08/15/2012EP2487266A1 Molten metal producing device
08/15/2012EP2487265A1 Molten metal producing device
08/15/2012EP2210960B1 Process for producing hot briquette iron using high-temperature reduced iron, and method and apparatus for temperature control of reduced iron for hot forming for the process
08/15/2012CN102634623A Material distributing method for carbonic mineral aggregate pellet by coal-based direct reduction process of rotary hearth furnace
08/15/2012CN102634622A Method for reducing and separating metallic irons by using refractory ores, complex ores and iron-containing wastes
08/15/2012CN102634621A Device and method for treating refractory iron ore
08/15/2012CN101688259B Process and apparatus for producing iron sponge
08/08/2012EP2484786A1 Method for producing briquettes, method for producing reduced metal, and method for separating zinc or lead
08/08/2012CN102628092A Smelting process for vanadium titano-magnetite
08/08/2012CN102628091A Technology for producing molten iron by three-step method
08/07/2012US8236090 Process and apparatus for producing metals and/or primary metal products
08/07/2012CA2563899C Metallurgical processing installation
08/07/2012CA2538091C Self-reducing, cold-bonded pellets
08/02/2012WO2012102843A1 Method and apparatus for making liquid iron and steel
08/02/2012US20120192678 Methods of Using Tires and Scrap Rubber in the Manufacture and Melting of Steel and Other Metals
08/02/2012US20120192677 Method and apparatus for making liquid iron and steel
08/01/2012EP2480691A1 REFORMER GAS-BASED REDUCING METHOD WITH REDUCED NOx EMISSION
08/01/2012CN202360806U Iron making coal injection transfer automatic switching anti-blocking valve
08/01/2012CN102618686A Technology for producing sponge iron by taking carbon-Lan as reducing agent
08/01/2012CN102618685A Energy-saving environmental-protection two-grinding one-burning method iron ore cokeless iron making and cement clinker producing technology
08/01/2012CN102618684A Continuous melting reduction iron-making device
08/01/2012CN102618683A Method for controlling temperature of vault of fusion gasification furnace
08/01/2012CN101392192B Conversion of coke oven gas carbon dioxide and production method of gas-based shaft kiln directly reduced iron
07/2012
07/31/2012CA2630236C Method for manufacturing metallic iron
07/31/2012CA2467310C Combined ironmaking and steelmaking plant
07/25/2012EP2479292A2 Apparatus and method for manufacturing reduced iron
07/25/2012EP1604373B1 Method and apparatus for controling temperature uniformity of the burden in a direct reduction shaft furnace
07/25/2012CN102612632A Method and device for feeding into a smelting unit
07/25/2012CN102605174A Process method for respectively recovering nickel and iron from low-nickel high-iron laterite
07/25/2012CN102605133A Direct reduction method for producing sponge iron by aid of coke oven gas
07/25/2012CN102605132A Method for producing direct reduction iron by aid of coke oven gas
07/25/2012CN102605131A Apparatus for manufacturing molten irons by injecting fine coals into a melter-gasifier and the method using the same
07/25/2012CN102605130A Apparatus for manufacturing molten irons by injecting fine coals into a melter-gasifier and the method using the same
07/25/2012CN102605129A Method for improving iron content and reducing sulfur content by direct reduction of carbon-containing pellets in rotary hearth furnace
07/25/2012CN102605128A Method for producing and reducing grained iron by coke oven
07/25/2012CN102605127A Method for reducing and producing cast iron by coke oven
07/25/2012CN102605126A Ore reduction process and titanium oxide and iron metallization product
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