| Patents for C21B 13 - Making spongy iron or liquid steel, by direct processes (6,991) |
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| 04/13/2011 | CN101405414B A forehearth |
| 04/13/2011 | CN101389773B Electric arc furnace steelmaking |
| 04/13/2011 | CN101184854B Method for pre-heating iron agglomerates |
| 04/07/2011 | WO2011040344A1 Method for producing briquettes, method for producing reduced metal, and method for separating zinc or lead |
| 04/07/2011 | US20110079109 Method Of Operating A Converter And Apparatus For Carrying Out The Method |
| 04/07/2011 | CA2773237A1 Method for producing briquettes, method for producing reduced metal, and method for separating zinc or lead |
| 04/06/2011 | CN201785426U Industrial kiln car for sponge iron tunnel kiln production |
| 04/06/2011 | CN102002547A Gasification furnace gas process for reduction process of coal gasification shaft furnace |
| 04/06/2011 | CN102002546A Iron-containing material suspending and reducing device and process |
| 04/06/2011 | CN101665849B Continuous steel making process for iron ore |
| 04/06/2011 | CN101643806B Method for producing molten iron with high-phosphorus and low-iron refractory iron ore |
| 04/06/2011 | CN101598500B Continuous steel furnace slag-free tapping hole |
| 04/06/2011 | CN101597662B Method for producing direct reduced iron |
| 04/06/2011 | CN101580889B Method for increasing direct reduced iron metallization rate by industrial wastes containing iron and carbon |
| 04/06/2011 | CN101538630B Process and device for preparing chromium iron by using chromium ore powder |
| 03/31/2011 | WO2010080918A3 Solidification of molten material over moving bed of divided solid material |
| 03/31/2011 | DE10336676C5 Verfahren und Anlage zur Reduktion von eisenoxidhaltigen Feststoffen Method and apparatus for reduction of iron oxide-containing solids |
| 03/30/2011 | EP2300626A1 Process gas purification device for a melt reduction system for extracting pig iron |
| 03/30/2011 | CN201778047U High-temperature fluidized bed device for process sampling |
| 03/30/2011 | CN101999004A Method for producing sintered ore |
| 03/30/2011 | CN101522920B Apparatus for manufacturing molten irons and method for manufacturing molten irons using the same |
| 03/29/2011 | US7914602 Process to reduce steel furnace slag carry-over during tapping |
| 03/24/2011 | WO2011034276A2 Apparatus and method for manufacturing reduced iron |
| 03/23/2011 | EP2298941A1 Briquette manufacturing method, reductive metal manufacturing method, and zinc or lead separation method |
| 03/23/2011 | EP2297365A1 Method and system for energy-optimized and co<sb>2</sb>emission-optimized iron production |
| 03/23/2011 | CN101990581A Titanium oxide-containing agglomerate for producing granular metallic iron |
| 03/23/2011 | CN101988136A Automatic production line for directly reducing iron |
| 03/17/2011 | WO2011029792A1 Method for removing co2 from exhaust gases of plants for producing raw iron |
| 03/17/2011 | DE10103605B4 Vorrichtung zum Einspeisen von festem Partikelmaterial in einen Kessel An apparatus for feeding solid particulate material into a vessel |
| 03/16/2011 | CN201762358U Container for reduction roasting device |
| 03/16/2011 | CN201762357U Reduction roasting device |
| 03/16/2011 | CN201762356U Iron-containing material suspension and reduction device |
| 03/16/2011 | CN201762355U Energy-saving and low-carbon steel melting furnace |
| 03/16/2011 | CN201762354U Oxygen and coal dust blowing device of pure oxygen smelting reduction furnace |
| 03/16/2011 | CN101693933B Ironmaking technical furnace top charging technology |
| 03/15/2011 | CA2441521C Modular furnace |
| 03/09/2011 | CN101984080A Process and device for separating iron and aluminum silica slag from red mud and removing alkali metal |
| 03/09/2011 | CN101984079A Dephosphorization and iron-increasing method of high phosphorus hematite by direct reduction |
| 03/08/2011 | US7901616 Method of building a direct smelting plant |
| 03/03/2011 | DE102009038052A1 Method for pre-reducing metal oxides comprises feeding the metal oxide according to oxidizability into a first reactor, releasing the bound nitrogen and/or the oxygen already in a second reactor and converting a fuel |
| 03/02/2011 | EP2290110A1 Apparatus for manufacturing molten irons by injecting fine coals into a melter-gasifier and the method using the same |
| 03/01/2011 | US7897100 Method and device for the continuous production of steel using metal charge material |
| 03/01/2011 | US7896963 Self-reducing, cold-bonded pellets |
| 02/23/2011 | CN101981209A Process for production of reduced iron |
| 02/23/2011 | CN101006314B Equipment for measurement and control of load material or scrap feeding into a furnace and relative method |
| 02/17/2011 | WO2011017995A1 Method for reusing outlet coal gas as reducing gas in direct reduction process |
| 02/16/2011 | CN101974661A Method and equipment for ironmaking by melting reduction |
| 02/16/2011 | CN101270401B Pure oxygen non-blast furnace ironmaking end reduction furnace oxygen wind gap apparatus |
| 02/10/2011 | WO2010143203A3 Method for producing cast iron or semi steel with reducing gas |
| 02/09/2011 | EP2281071A1 Process and device for producing pig iron or liquid steel precursors |
| 02/09/2011 | CN101967529A Method for producing nickel-containing pig iron by using rotary kilns |
| 02/08/2011 | US7883566 Methods of using tires and scrap rubber in the manufacture and melting of steel and other metals |
| 02/08/2011 | CA2335761C Direct smelting vessel and direct smelting process |
| 02/03/2011 | WO2011012964A2 Method for producing direct reduced iron with limited co2 emissions |
| 02/03/2011 | WO2011012452A1 Reformer gas-based reducing method with reduced nox emission |
| 02/03/2011 | WO2011012448A1 Reformed gas-based reduction method with return of the waste reduction gases and decarbonisation of the waste gas component used as combustion gas for the reformer |
| 02/03/2011 | CA2769460A1 Reformer gas-based reducing method with reduced nox emission |
| 02/03/2011 | CA2769398A1 Reformer-gas-based reduction process with decarbonization of the fuel gas for the reformer |
| 02/02/2011 | CN201729845U Safe tapping device |
| 02/02/2011 | CN201729840U Front titanium slag treatment device |
| 02/02/2011 | CN201728215U Unloading and dedusting device in sponge iron production line |
| 02/02/2011 | CN101463405B Production method for producing spongy iron by dry coal powder gasification high furnace |
| 02/01/2011 | US7879132 using as a material a powder containing metal oxides and containing alkali metals and halogen elements, mixing such material with water to produce a slurry, then dehydrating and charging the dehydrated material into a rotary hearth type reduction furnace for reduction |
| 01/27/2011 | WO2011010669A1 Apparatus and method for producing reduced iron using alkali-containing iron production dust as the raw material |
| 01/27/2011 | WO2011010667A1 Carbon composite briquette for producing reduced iron and method for producing reduced iron employing the same |
| 01/27/2011 | US20110017016 System and method for cooling and removing iron from a hearth |
| 01/27/2011 | CA2766256A1 Carbon composite agglomerate for producing reduced iron and method for producing reduced iron using the same |
| 01/27/2011 | CA2765257A1 Apparatus and method for producing reduced iron from alkali-containing ironmaking dust serving as material |
| 01/26/2011 | EP2173915B1 Process and apparatus for producing iron sponge |
| 01/26/2011 | CN101956038A Process method and device for performing lower-carbon ironmaking and steelmaking through melting reduction of iron ore |
| 01/26/2011 | CN101956037A Method and device for indirect heating type reduction iron making |
| 01/26/2011 | CN101956036A Apparatus for manufacturing molten irons by injecting fine carbonaceous materials into a melter-gasifier and a method manufacturing molten irons |
| 01/26/2011 | CN101956035A Iron-containing material slag bath smelting reduction steelmaking technical method and device |
| 01/19/2011 | CN201715845U Material feeding device |
| 01/19/2011 | CN201713216U Sponge iron grasping device |
| 01/12/2011 | CN201704350U Sponge titanium reduction reactor sieve plate |
| 01/12/2011 | CN101575654B Process and device for preparing iron alloy containing nickel and nickel-chromium |
| 01/12/2011 | CN101260446B End reducing furnace for non-blast-furnace iron smelting |
| 01/06/2011 | WO2011002465A1 Use of a channel induction furnace to process at least one of a molten metal product, a vapor phase metal product and a slag product from a variety of feed materials |
| 01/05/2011 | EP2270239A1 Process for producing molten metal |
| 01/05/2011 | CN101935794A Method for producing ferro-nickel alloy by using nickel-bearing laterite in shaft furnace and smelting furnace |
| 01/05/2011 | CN101935733A Apparatus for manufacturing molten irons by injecting fine coals into a melter-gasifier and the method using the same |
| 01/05/2011 | CN101935732A Charging method of reducing coal gas for gas-based reduction shaft furnace |
| 01/05/2011 | CN101935731A Top charging process for iron-making process furnace |
| 01/05/2011 | CN101935730A Furnace top charging process in iron-making process |
| 01/05/2011 | CN101935729A Top loading process for iron-smelting process furnace |
| 01/05/2011 | CN101935728A Method for producing upgraded coal for use in metallurgy and method for producing reduced metal and slag containing oxidized nonferrous metal using the coal |
| 01/05/2011 | CN101935727A Method for producing improved coal for use in metallurgy, and method for producing reduced metal and slag containing oxidized nonferrous metal |
| 01/05/2011 | CN101935726A Apparatus for manufacturing molten irons |
| 01/05/2011 | CN101671752B Method for producing directly reduced pellets by adding pore-forming agent and organic binder |
| 01/05/2011 | CN101603109B Process for treating top gas of reduction shaft furnace |
| 01/05/2011 | CN101487068B Technological process for directly producing spongy iron from high-phosphor oolitic hematite |
| 12/29/2010 | CN201686702U Feeding device for blast furnace ore and coke groove system |
| 12/29/2010 | CN101928800A Method for directly reducing carbon-bearing ferromagnetic metal pellets by adopting sensible heat of raw gases |
| 12/29/2010 | CN101928799A Process for producing spongy iron by using Finex process output gas |
| 12/29/2010 | CN101928798A Discharge mechanism applied to reduction roasting device and discharging method thereof |
| 12/29/2010 | CN101696460B Process and device for dual continuous steel making with iron-containing material rotary hearth furnace |
| 12/29/2010 | CN101563469B Apparatus and method for manufacturing molten iron |
| 12/29/2010 | CN101560580B New iron-making and steel-making process by one-step method and equipment thereof |
| 12/29/2010 | CN101476010B Method and apparatus for reducing metallic pellet by using coal dust in high furnace |