| Patents for C21B 13 - Making spongy iron or liquid steel, by direct processes (6,991) |
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| 02/04/2014 | US8641799 Process for producing agglomerates of finely particulate iron carriers |
| 01/30/2014 | WO2014015364A1 Starting a smelting process |
| 01/29/2014 | EP2690181A1 Method and system for producing metallic iron nuggets |
| 01/29/2014 | EP2689041A1 Direct smelting process for high sulphur feed |
| 01/29/2014 | CN203411562U Unloading and crushing device for direct reduction iron |
| 01/29/2014 | CN203411561U Construction structure for warm-air pipe compensator of hot-blast stove |
| 01/29/2014 | CN102549172B Molten metal producing device |
| 01/28/2014 | CA2766256C Carbon composite agglomerate for producing reduced iron and method for producing reduced iron using the same |
| 01/22/2014 | CN203403123U Induction heating and communicating pipe for melting reduction furnace and front-mounted furnace |
| 01/22/2014 | CN103534363A Direct smelting process for high sulphur feed |
| 01/22/2014 | CN103534340A Process and plant for the production and further treatment of fuel gas |
| 01/22/2014 | CN103525966A Method for producing gas-based directly reduced iron by utilizing catalytic conversion of natural gas, and system thereof |
| 01/22/2014 | CN103525965A Method for producing gas-based directly reduced iron by utilizing non-catalytic conversion of coke-oven gas, and system thereof |
| 01/22/2014 | CN103525964A Method for producing gas-based directly reduced iron by utilizing catalytic conversion of coke-oven gas, and system thereof |
| 01/22/2014 | CN102994740B Method for preparing carbon-containing pellet for blast furnace |
| 01/22/2014 | CN102589295B Material pouring machine for sponge iron loading and unloading tank |
| 01/22/2014 | CN102559981B Iron making method and device by virtue of gas-based smelting reduction |
| 01/21/2014 | US8632622 Process and device for producing pig iron or liquid steel precursors |
| 01/21/2014 | CA2591792C Process and apparatus for producing metals and/or primary metal products |
| 01/15/2014 | CN103509934A Method for manufacturing an austenitic stainless steel from a nickel laterite ore and a chromite ore |
| 01/15/2014 | CN102642027B Process for producing reduced iron powder |
| 01/15/2014 | CN101386897B Iron-smelting technology of SDRF furnace |
| 01/14/2014 | CA2698234C Method of producing reduced iron cast, and method of producing pig iron |
| 01/14/2014 | CA2652236C Direct smelting vessel and cooler therefor |
| 01/09/2014 | WO2014007174A1 Method for producing reduction product |
| 01/08/2014 | CN203382783U Lining structure for furnace hearth and furnace bottom of COREX (coal reduction extreme) melting gasification furnace |
| 01/08/2014 | CN203382782U External heating type direct-reduced iron device by reducing gas |
| 01/08/2014 | CN203382781U Control device of continuous external heating-type reducing gas direct reduction iron comprehensive device |
| 01/08/2014 | CN203382780U Continuous external heating-type reducing gas direct reduction iron comprehensive device |
| 01/08/2014 | CN203382779U Preheating bin of reducing-gas DRI (direct reduction iron) |
| 01/08/2014 | CN203382778U Continuous external heating-type reducing gas direct reduction iron furnace |
| 01/02/2014 | US20140000834 Method for Manufacturing an Austenitic Stainless Steel from a Nickel Laterite Ore and a Chromite Ore |
| 01/01/2014 | CN203373371U Conveying bed smelting system for preparing reducing gases through medium-low-rank coal gasification |
| 01/01/2014 | CN203373370U Moving bed smelting system for preparing reducing gases through medium-low-rank coal gasification |
| 01/01/2014 | CN102177261B Device for smoothing the surface of a sinter mixture |
| 12/27/2013 | WO2013093640A3 Method and apparatus for production of direct reduced iron (dri) utilizing coke oven gas |
| 12/25/2013 | EP2677043A1 Method and device for the manufacture of liquid pig iron and/or liquid steel inputs |
| 12/25/2013 | CN103469045A Laterite nickel ore microwave low-temperature smelting device |
| 12/25/2013 | CN103468849A New process for preparing microalloy iron powder from vanadium-titanium-iron concentrates through external heated vertical furnace reduction-grinding separation |
| 12/25/2013 | CN103468848A Method for treating high-iron red mud with high-temperature iron bath |
| 12/25/2013 | CN103468847A Iron bath method high temperature gas waste heat and waste energy utilization and dry method dedusting technology |
| 12/25/2013 | CN102618683B Method for controlling temperature of vault of fusion gasification furnace |
| 12/19/2013 | WO2013186664A1 Device for recovering heat and fumes from slag resulting from the steel production cycle |
| 12/19/2013 | US20130333523 Direct smelting process |
| 12/18/2013 | EP2673387A1 Direct smelting process |
| 12/18/2013 | EP2231882B9 Apparatus and method for recovering excess gas generated in ironmaking process |
| 12/18/2013 | EP1561829B1 Method for reduction treatment of metal oxide or ironmaking waste, and method for concentration and/or recovery of zinc and/or lead. |
| 12/18/2013 | CN103451348A Direct reduction method for producing medium-and-low-carbon manganese-iron alloy |
| 12/18/2013 | CN103451347A Furnace-inside modification method of furnace gas in Hismelt smelting reduction furnace and smelting reduction furnace thereof |
| 12/18/2013 | CN103451341A Hot-blast duct compensator masonry structure of hot-blast furnace |
| 12/18/2013 | CN102925613B Disc type discharge machine of rotary hearth furnace for reducing ion directly at high temperature |
| 12/18/2013 | CN102232119B Process for production of direct reduced iron |
| 12/12/2013 | DE102012011240A1 Verfahren zur Herstellung von gehärteten Granalien aus eisenhaltigen Partikeln A process for the preparation of cured granules of iron-containing particles |
| 12/11/2013 | CN203333698U Double-shaft-furnace direct reduction iron cogeneration system |
| 12/11/2013 | CN203333697U Cold-feeding fluidized-bed smelting system for preparing reducing gas through medium-level and low-level coal gasification |
| 12/11/2013 | CN203333696U Fluidized-bed smelting system for preparing reducing gas through medium-level and low-level coal gasification |
| 12/11/2013 | CN203333695U Cold-feeding conveying-bed smelting system for preparing reducing gas through medium-level and low-level coal gasification |
| 12/11/2013 | CN103436653A Water cooling tube device for direct reduction iron |
| 12/11/2013 | CN102634623B Material distributing method for carbonic mineral aggregate pellet by coal-based direct reduction process of rotary hearth furnace |
| 12/11/2013 | CN102575305B Molten metal producing device |
| 12/11/2013 | CN102559979B Process method for producing reduced iron from red mud |
| 12/05/2013 | WO2013179942A1 Method for manufacturing mixture of reduce iron and slag |
| 12/04/2013 | EP2668301A1 Method and apparatus for making liquid iron and steel |
| 12/04/2013 | CN103421925A Method of preparing titanium dichloride slag |
| 12/04/2013 | CN103421924A Fluidization laterite ore reducing method |
| 12/04/2013 | CN102719676B Method for rapidly reducing copper slags to produce iron-copper alloys in kiln in reducing atmosphere |
| 12/04/2013 | CN102605129B Method for improving iron content and reducing sulfur content by direct reduction of carbon-containing pellets in rotary hearth furnace |
| 11/27/2013 | CN203307366U Continuous hot conveying and charging device for shaft furnace and electric arc furnace reduced iron |
| 11/27/2013 | CN103409585A Control method for continuous external heated integrated device for producing direct reduction iron through reduction gas |
| 11/27/2013 | CN103409584A External-heating device for producing direct reduced iron by using reducing gas |
| 11/27/2013 | CN103409583A Control device of continuous external heated integrated device for producing direct reduction iron through reduction gas |
| 11/27/2013 | CN103409582A External-heating method for producing direct reduced iron by using reducing gas |
| 11/27/2013 | CN103409581A Continuous external heated comprehensive method for producing direct reduction iron through reduction gas |
| 11/27/2013 | CN103409580A Continuous external heated integrated device for producing direct reduction iron through reduction gas |
| 11/27/2013 | CN103409579A Continuous external heated furnace for producing direct reduction iron through reduction gas |
| 11/27/2013 | CN103409578A Preheating bin used for production of direct reduction iron through reduction gas |
| 11/27/2013 | CN103409577A Continuous external heated method for producing direct reduction iron through reduction gas |
| 11/27/2013 | CN103409576A Energy recovery and dry dedusting process for gas from direct melting furnace |
| 11/27/2013 | CN103409575A Reducing agent for slag cleaning furnace top-blown immersion blowing reduction |
| 11/27/2013 | CN102766718B Method for producing sponge iron and zinc-rich materials by blast furnace zinc-containing ash |
| 11/27/2013 | CN102417944B Method for utilizing vanadium-titanium-secondary iron concentrate to smelt acid-soluble titanium slag by way of smelting reduction |
| 11/21/2013 | WO2013172911A1 Sponge-iron alloying |
| 11/21/2013 | WO2013171001A1 Method and device for introducing fine particle-shaped material into the fluidised bed of a fluidised bed reduction unit |
| 11/21/2013 | US20130305883 Method and apparatus for producing direct reduced iron utilizing a source of reducing gas comprising hydrogen and carbon monoxide |
| 11/20/2013 | EP2664681A1 Method and device for inserting particulate material into the fluidised bed of a reduction unit |
| 11/20/2013 | EP1756322B1 A direct reduction process |
| 11/20/2013 | CN203295584U Smelting reduction furnace used for nickel laterite ore smelting |
| 11/20/2013 | CN103397129A Smelting reduction ironmaking furnace and ironmaking technology thereof |
| 11/20/2013 | CN103397128A Method used for extracting iron from red mud by drastic reduction and method used for preparing gel material from secondary tailings |
| 11/20/2013 | CN102589285B Slag discharge device of water seal tank of rotary hearth furnace |
| 11/20/2013 | CN102037145B Method for melting raw iron while recirculating blast furnace gas by adding hydrocarbons |
| 11/14/2013 | WO2013169673A1 Reclaiming and inhibiting activation of dri fines |
| 11/13/2013 | EP2662458A1 Method and device for reducing BTX development during the pyrolysis of carbon-based fuels |
| 11/13/2013 | EP2662457A1 Method and apparatus for the production of agglomerates and using the agglomerates in a FINEX ® process |
| 11/13/2013 | CN103392013A Method and apparatus for making liquid iron and steel |
| 11/06/2013 | EP2660339A2 Integrated steel manufacturing system and method for integrated steel manufacturing |
| 11/06/2013 | CN203269965U Vertical shaft furnace |
| 11/06/2013 | CN102864301B Automatic production line of directly-reduced ferronickel |
| 10/31/2013 | WO2013161653A1 Metal iron-containing sintered body |
| 10/31/2013 | WO2013159966A1 System and method for heat treatment of granular and lumpy material |