| Patents for C21B 13 - Making spongy iron or liquid steel, by direct processes (6,991) |
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| 04/04/2013 | CA2850393A1 Method and device for producing pig iron |
| 04/03/2013 | EP1580508B1 Material feeding apparatus for rotary hearth furnace |
| 04/03/2013 | CN103025895A Device for production of granular metal iron, and process for production of granular metal iron |
| 04/03/2013 | CN103014215A Rotary hearth furnace |
| 04/03/2013 | CN103014214A Method for realizing combined extraction of iron and aluminum oxide in iron-aluminum complex ore |
| 04/03/2013 | CN103014213A Method for reducing carbonate-containing iron ore to extract iron |
| 04/03/2013 | CN103014212A Technical method for producing metal iron powder by using carbon-containing high-phosphorus oolitic hematite pellet |
| 04/03/2013 | CN103011090A Method for producing sulfur by using pyrolysis-reducing united technique |
| 04/03/2013 | CN101956036B Apparatus for manufacturing molten irons by injecting fine carbonaceous materials into a melter-gasifier and a method manufacturing molten irons |
| 04/03/2013 | CN101792856B Metal reduction method |
| 04/02/2013 | US8409320 Process for producing a foamed slag on austenitic stainless melts in an electric arc furnace |
| 04/02/2013 | US8409318 Process and apparatus for forming wire from powder materials |
| 03/27/2013 | EP2572005A1 Direct smelting process |
| 03/27/2013 | CN103003452A Reduced iron production method |
| 03/27/2013 | CN102994740A Method for preparing carbon-containing pellet for blast furnace |
| 03/27/2013 | CN102994681A Method for producing sponge iron by direct reduction of electric reduction furnace |
| 03/27/2013 | CN102994680A Controllable atmosphere rotary hearth furnace process for producing direct reduction iron |
| 03/27/2013 | CN102994679A Method and equipment for producing high-quality sponge iron for reduced iron powder |
| 03/27/2013 | CN102994678A Method and system for pulverized coal gasification for gas generation and direct reduction metallurgy of gas-based shaft furnace |
| 03/27/2013 | CN102409128B Device and process for making gas and reducing iron through coal derived fusion melting bed |
| 03/27/2013 | CN101755056B Method and apparatus for the direct reduction of iron ores utilizing syngas |
| 03/27/2013 | CN101490284B Direct smelting vessel and cooler therefor |
| 03/27/2013 | CN101432445B 直接熔炼设备 Direct smelting plant |
| 03/21/2013 | WO2013037634A1 System for energy optimization in a plant for producing direct-reduced metal ores |
| 03/21/2013 | CA2848332A1 System for energy optimization in a plant for producing direct-reduced metal ores |
| 03/20/2013 | CN102985567A Method and device for regulating the temperature of process gases from plants for raw iron production for use in an expansion turbine |
| 03/20/2013 | CN102978321A Method for direct reduction production of metalized pellet sponge iron through medium frequency furnace |
| 03/20/2013 | CN102978320A Method for preparing direct-reduction iron by reducing carbon-containing iron ore powder in microwave heating manner |
| 03/20/2013 | CN102978318A Method for realizing phosphorus removal of oolitic high-phosphorus iron ores by combining enhanced gas-based reduction and high-temperature smelting separation |
| 03/19/2013 | CA2415310C Metallic iron nuggets |
| 03/13/2013 | CN202786299U Reduced iron kiln |
| 03/13/2013 | CN202786298U Reduction furnace equipment capable of reducing iron directly |
| 03/13/2013 | CN202786159U Reducing gas purification system matched with air base shaft furnace |
| 03/13/2013 | CN102971403A Method for producing pressed articles containing coal particles |
| 03/13/2013 | CN101824502B Reduction roasting magnetic separation process of low-grade raw iron ores |
| 03/12/2013 | US8394168 Low cost process for the manufacture of near net shape titanium bodies |
| 03/07/2013 | WO2013030057A1 Method for treating waste gases from plants for pig iron production and/or synthesis gas |
| 03/07/2013 | US20130055853 Method for producing metallic iron |
| 03/07/2013 | CA2846689A1 Method for treating waste gases from plants for pig iron production and/or synthesis gas |
| 03/06/2013 | CN202766557U High pressure resistant type furnace burden flow control valve for shaft furnace |
| 03/06/2013 | CN102959095A Process for producing molten steel using particulate metallic iron |
| 03/06/2013 | CN102959093A Granular metal iron production method |
| 03/06/2013 | CN102959058A Method for producing pressed articles containing coal particles |
| 03/06/2013 | CN101792860B Fabric distributing method for trolley in metal reduction reaction and metal reduction method thereof |
| 02/28/2013 | US20130047782 Green process for the preparation of direct reduced iron (dri) |
| 02/28/2013 | DE10244972B4 Wärmefester Stahl und Verfahren zur Herstellung desselben Of the same heat-resistant steel and methods for making |
| 02/27/2013 | EP2561107A1 Bentonite-bonded pressed articles from fine-grain oxidic iron carriers |
| 02/27/2013 | CN202755014U Reduction kiln for direct reduction of ferronickel |
| 02/27/2013 | CN102947470A Furnace having even distribution of gas |
| 02/27/2013 | CN102943142A Solid-state reduction ilmenite pressing block for producing titanium-rich material and preparation method and application thereof |
| 02/27/2013 | CN102268504B Direct reduction process for producing sponge iron by using coke oven gas |
| 02/21/2013 | DE102007032419B4 Verfahren und Anlage zur Reduktion von eisenoxidhaltigen Feststoffen Method and apparatus for reduction of iron oxide-containing solids |
| 02/20/2013 | CN102936653A Method for reducing high-density metallized pellet |
| 02/19/2013 | US8380877 Mass generation of individual virtual servers, virtual web sites, and virtual web objects |
| 02/19/2013 | US8377371 System and method for producing metallic iron |
| 02/19/2013 | US8377169 Method and apparatus for manufacturing granular metallic iron |
| 02/19/2013 | US8377168 Method for the direct reduction of iron oxides to metallic iron utilizing coke oven gas or the like |
| 02/19/2013 | CA2566157C A direct reduction process and apparatus |
| 02/13/2013 | CN102933727A Granular metal production method |
| 02/13/2013 | CN102933726A Process and plant for producing hot metal |
| 02/13/2013 | CN102925614A Material discharge device for vertical furnace |
| 02/13/2013 | CN102925613A Disc type discharge machine of rotary hearth furnace for reducing ion directly at high temperature |
| 02/13/2013 | CN102925612A Method for extracting sponge iron from sulfate slag by reducing roasting of tunnel kiln |
| 02/13/2013 | CN102925611A Method for modifying iron ore powder by composite additive to prevent sticking and defluidizing during fluidization reduction |
| 02/13/2013 | CN102162028B Application of laterite nickel ore to production of shaft furnace pellets, and method |
| 02/12/2013 | US8372333 Angled probe for vessel |
| 02/12/2013 | US8372179 Ore reduction process using carbon based materials having a low sulfur content and titanium oxide and iron metallization product therefrom |
| 02/07/2013 | WO2013017751A1 Device having a plurality of reaction chambers for implementing liquid/solid oxidation-reduction reactions in a fluidized bed |
| 02/07/2013 | US20130032005 Bentonite-bound compacts of undersized oxidic iron carriers |
| 02/07/2013 | CA2843828A1 Device with several reaction chambers for implementing liquid/solid oxidation-reduction reactions in a fluidized bed |
| 02/06/2013 | CN202717824U System for comprehensively utilizing coal gas and dust of iron and steel plant |
| 02/06/2013 | CN202717793U Combined ironmaking device for smelting reduction furnace of rotary hearth furnace |
| 02/06/2013 | CN202717792U Device for producing direct reduction iron by short process |
| 02/06/2013 | CN202717791U Uniform distribution device of rotary hearth furnace |
| 02/06/2013 | CN102918169A Bentonite-bonded pressed articles from fine-grain oxidic iron carriers |
| 02/06/2013 | CN102912209A Process for producing bead ferronickel by rotary hearth furnace through coal-based reduction of red soil nickel oxide ores |
| 02/06/2013 | CN102912160A Method for treating lean ferrous manganese ore by directly reducing electric furnace melting components through rotary hearth furnace |
| 02/06/2013 | CN102912062A Method for directly reducing iron through electric reduction furnace |
| 02/06/2013 | CN102912061A Reduction furnace with inner heating containers for producing direct induction iron |
| 02/06/2013 | CN102912060A Reduction furnace for producing direct reduction iron |
| 02/06/2013 | CN102912059A Top charging device of shaft furnace |
| 02/06/2013 | CN102912058A Hot-blast valve used in hot-blast furnace system for direct reduced iron vertical furnace |
| 02/06/2013 | CN101999004B Method for producing sintered ore |
| 01/31/2013 | WO2013013525A1 Device and method for dismounting agd pipe of reduction furnace |
| 01/31/2013 | WO2013013295A1 Improved process for direct reduction of iron oxide |
| 01/31/2013 | DE102011108853A1 Connecting two metal pipes made of simple steel, which exhibits high-quality coating on one side, which is to be protected from corrosion, comprises e.g. applying two of high grade material in or on side of tubes ends to be protected |
| 01/30/2013 | EP2551362A1 Carbon-material-containing iron oxide briquette composition, method for producing same, and method for producing reduced iron using same |
| 01/30/2013 | CN102906280A Direct smelting process |
| 01/30/2013 | CN102899438A Reducing furnace used for producing direct reduction iron |
| 01/30/2013 | CN102899437A Intermediate frequency furnace used for producing direct reduction iron |
| 01/30/2013 | CN102899436A Method for directly reducing iron with intermediate frequency furnace |
| 01/30/2013 | CN102899435A Method for comprehensively using vanadium-titanium magnetite by shaft furnace reduction and electric furnace melting |
| 01/30/2013 | CN102899434A Method for synchronously extracting boron and iron in paigeite |
| 01/30/2013 | CN102424873B Method and device for solar reduction iron making |
| 01/30/2013 | CN102304600B Rotary hearth furnace adopting 2-3-section distribution and discharge mode for direct reduction production |
| 01/30/2013 | CN101990581B Titanium oxide-containing agglomerate for producing granular metallic iron |
| 01/29/2013 | US8361190 Process and apparatus for producing sponge iron |
| 01/29/2013 | US8361189 Process and apparatus for producing metals and/or primary metal products |
| 01/24/2013 | WO2013010725A1 Melting reduction assembly and method for operating a melting reduction assembly |
| 01/24/2013 | CA2842269A1 Melting reduction assembly and method for operating a melting reduction assembly |