| Patents for C21B 11 - Making pig-iron other than in blast furnaces (2,381) |
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| 06/06/2013 | US20130139647 Partially-reduced iron producing method and partially-reduced iron producing apparatus |
| 05/16/2013 | US20130118307 Device for producing granular metal iron and process for producing granular metal iron |
| 05/16/2013 | US20130118306 Process and plant for producing hot metal |
| 05/15/2013 | EP2592374A1 System for feeding reduced iron material |
| 05/15/2013 | CN103108967A Direct smelting process |
| 05/15/2013 | CN102618684B Continuous melting reduction iron-making device |
| 05/08/2013 | CN202925045U Flash smelting device for iron |
| 05/08/2013 | CN103088208A Method of processing manganese-containing and phosphorus-containing hematite |
| 05/08/2013 | CN103088180A Method for preparing qualified steel-producing raw material and recovering tin by directly reducing high-iron low-tin concentrate |
| 05/08/2013 | CN102168156B Iron and aluminum melting separation method for complicated and hard-dressing aluminum and iron intergrowth ore |
| 05/01/2013 | CN202912994U Energy-saving and environment-friendly laterite nickel ore smelting shaft furnace |
| 05/01/2013 | CN202912993U Automatic feeding device for energy-saving and environment-friendly laterite nickel ore smelting shaft furnace |
| 05/01/2013 | CN202912992U Energy-saving and environment-friendly laterite nickel ore smelting equipment |
| 05/01/2013 | CN103080682A System for feeding reduced iron material |
| 05/01/2013 | CN103080681A Rotary hearth furnace exhaust gas duct apparatus and method for operating same |
| 05/01/2013 | CN103074484A Method for comprehensively treating phosphorus-containing oolitic hematite and red mud |
| 05/01/2013 | CN102329909B Method for extracting iron particles and zinc powder from dust of steel and iron plant |
| 04/24/2013 | CN103060502A Process for one-time reduction melting of ferric silicate by using waste copper residue |
| 04/17/2013 | CN103045787A Method and device for observing growth process of iron whiskers on surfaces of iron ore powder particles |
| 04/16/2013 | US8419825 Method and system for energy-optimized and CO2 emission-optimized iron production |
| 04/16/2013 | US8419821 Method for treating spheroidal graphite iron and pouring device thereof |
| 04/11/2013 | WO2013052416A1 Direct production of iron slabs and nuggets from ore without pelletizing or briquetting |
| 04/10/2013 | EP2578703A1 Granular metal production method |
| 04/04/2013 | WO2013044372A1 Auto-adjusting binding system for metallurgical furnace |
| 04/03/2013 | CN103025895A Device for production of granular metal iron, and process for production of granular metal iron |
| 04/03/2013 | CN101826728B Dynamic reactive power compensation device and control method thereof |
| 04/02/2013 | US8409318 Process and apparatus for forming wire from powder materials |
| 03/27/2013 | EP2572005A1 Direct smelting process |
| 03/27/2013 | CN101432445B 直接熔炼设备 Direct smelting plant |
| 03/20/2013 | CN102978319A Energy-saving environment-friendly laterite-nickel ore smelting apparatus and process |
| 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 |
| 03/20/2013 | CN101796362B Tuyere structure of smelting furnace |
| 03/19/2013 | CA2415310C Metallic iron nuggets |
| 03/13/2013 | CN202786299U Reduced iron kiln |
| 03/13/2013 | CN202786284U Crude fuel hot charging, full-hot oxygen blast furnace and shaft furnace joint production system |
| 03/13/2013 | CN102304597B Method for smelting iron by utilizing sulfuric acid slag |
| 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 |
| 03/06/2013 | CN102959093A Granular metal iron production method |
| 03/06/2013 | CN102952952A Method for directly restoring and recovering copper iron from smelting copper slag |
| 03/06/2013 | CN102094094B Process for smelting ferronickel from red soil nickel ore |
| 03/06/2013 | CN101792860B Fabric distributing method for trolley in metal reduction reaction and metal reduction method thereof |
| 02/28/2013 | US20130047787 Carbon-material-containing iron oxide briquette composition, method for producing the same, and method for producing direct reduced iron using the same |
| 02/28/2013 | DE10244972B4 Wärmefester Stahl und Verfahren zur Herstellung desselben Of the same heat-resistant steel and methods for making |
| 02/20/2013 | CN102936635A Method for extracting iron and titanium from ilmenite-containing concentrate |
| 02/20/2013 | CN102191346B Combined type tuyere small sleeve |
| 02/14/2013 | US20130036868 Process for producing pig iron or liquid primary steel products |
| 02/13/2013 | CN202730168U Device for preparing molten iron through copper slag smelting reduction |
| 02/13/2013 | CN102933727A Granular metal production method |
| 02/13/2013 | CN102925675A Method for recovering sludge from smelting ironmaking |
| 02/13/2013 | CN102925610A Electricity-coal process melting and reduction ironmaking technology |
| 02/13/2013 | CN102162028B Application of laterite nickel ore to production of shaft furnace pellets, and method |
| 02/06/2013 | CN202717790U Ferroalloy electric furnace hanging type small hole opening and blocking machine |
| 02/06/2013 | CN102912057A Method for reducing vanadium-titanium magnetite concentrate in tunnel kiln to obtain ferrite |
| 01/31/2013 | WO2013013295A1 Improved process for direct reduction of iron oxide |
| 01/30/2013 | CN102906280A Direct smelting process |
| 01/30/2013 | CN102424873B Method and device for solar reduction iron making |
| 01/30/2013 | CN102242233B Oxygen blasting tuyere of COREX (coal reduction extreme) furnace |
| 01/30/2013 | CN102199681B Method for separating and enriching iron and rare earth in rare earth crude ore containing iron |
| 01/24/2013 | US20130019716 Process and apparatus for reducing charge materials containing iron ore or for producing pig iron or liquid primary steel products |
| 01/23/2013 | CN1742102B An improved smelting process for the production of iron |
| 01/17/2013 | DE102011107326A1 Schachtofen und Verfahren zum Betreiben desselben The same shaft furnace and method of operating |
| 01/16/2013 | CN102878797A Shaft furnace and method for operating same |
| 01/16/2013 | CN102876827A Smelting-reduction pure oxygen humidifying device and process thereof |
| 01/16/2013 | CN102200392B Forehearth |
| 01/15/2013 | CA2642896C Granulated metallic iron superior in rust resistance and method for producing the same |
| 01/02/2013 | CN202648373U Anti-jam structure for shaft furnace bustle pipe |
| 01/02/2013 | CN202643725U Circular seam type full-oxygen tuyere structure |
| 01/02/2013 | CN101978079B Method for producing molten iron |
| 12/19/2012 | CN202610256U Device utilizing bauxite or red mud for slag-free production |
| 12/19/2012 | CN102191348B Technological method and device for producing high-grade nickel and stainless steel by using oxidized pellet method |
| 12/18/2012 | US8333821 Environmentally friendly system and method for manufacturing iron powder |
| 12/12/2012 | CN202599078U Device for adjusting coal gas in shaft furnace |
| 12/12/2012 | CN102199680B Cyclical low-carbon metallurgical method with tail gas conversion by plasma |
| 12/12/2012 | CN101358257B Microwave iron-making furnace |
| 12/06/2012 | DE102012103996A1 Operating a shaft furnace, comprises melting a raw material in the shaft furnace under the effect of atmosphere prevailing in the furnace, and introducing a treatment gas such as oxygen into the furnace |
| 12/04/2012 | US8323375 Method of operating a converter and apparatus for carrying out the method |
| 11/28/2012 | CN102796838A Method for producing pig iron and phosphate using ferro-phosphorus |
| 11/28/2012 | CN102146490B Reduction iron making method and device |
| 11/21/2012 | CN102787188A Process for smelting vanadium-containing pig iron by high-silicon vanadium titanomagnetite concentrate powder |
| 11/21/2012 | CN102051427B Method for preparing low-phosphorus and low-titanium molten iron by mixed-smelting high-phosphorus iron ore and titanic iron ore by oxygen-rich top-blowing smelting reduction technology |
| 11/21/2012 | CN101907104B DCS (Distributed Control System) control method for cooling fan of COREX slag powder grinding system |
| 11/20/2012 | US8313550 Method for treating spheroidal graphite iron and pouring device thereof |
| 11/14/2012 | CN101886231B Method for manufacturing nickel iron alloy |
| 11/08/2012 | WO2012087829A3 Use of bimodal carbon distribution in compacts for producing metallic iron nodules |
| 11/08/2012 | US20120279356 Process and Device for Charging Into a Smelting Unit |
| 11/08/2012 | US20120279353 System and method for producing metallic iron |
| 11/07/2012 | EP2520674A1 Apparatus for manufacturing molten iron |
| 11/07/2012 | CN202519316U Closed reducing furnace |
| 11/07/2012 | CN102766716A Slag-free production process of ilmenite |
| 11/07/2012 | CN102766715A Slag-free production process of ilmenite |
| 11/07/2012 | CN102766714A Slag-free combined production process for iron, aluminum and titanium |
| 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 | CN102758045A Device for slag-free production using bauxite or red mud |
| 10/31/2012 | CN102758038A Full-hot-oxygen blast furnace/shaft furnace combined production system |
| 10/31/2012 | CN102758037A Joint production system of crude fuel hot charging and total heat oxygen blast furnace and vertical furnace |
| 10/31/2012 | CN102757241A Stemming and purpose thereof |
| 10/24/2012 | CN102746913A Moulding method of moulded coal used for smelting-reduction ironmaking |
| 10/24/2012 | CN102746865A Preparation method of formed coke used for smelting-reduction ironmaking |