| Patents for C21B 13 - Making spongy iron or liquid steel, by direct processes (6,991) |
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| 05/08/2012 | US8173064 Method for operating a shaft furnace, and shaft furnance operable by that method |
| 05/08/2012 | US8172922 Method and device for the continuous production of steel using metal charge material |
| 05/02/2012 | CN102435075A Cooling device for direct reduction iron |
| 05/02/2012 | CN102433436A Method for separating iron and vanadium and titanium from vanadium titano-magnetite |
| 05/02/2012 | CN102031326B Ironmaking process for directly smelting and reducing iron ore concentrate powder |
| 05/02/2012 | CN101775460B Electric furnace steelmaking method using 100% low-quality tunnel kiln direct reduced iron as raw material |
| 04/26/2012 | WO2012053291A1 Apparatus for producing molten metallic iron |
| 04/26/2012 | US20120100034 Process for producing sponge iron |
| 04/25/2012 | CN202201915U 一种还原炉及生产直接还原铁的装置 A reducing furnace and production of direct reduced iron unit |
| 04/25/2012 | CN202201914U 一种超细磨的高铁赤泥精细还原装置 Ultrafine grinding of high-speed rail means red mud finely restored |
| 04/25/2012 | CN102424876A Non-blast-furnace iron making process for directly reducing vanadium titanomagnetite through gas-based shaft furnace |
| 04/25/2012 | CN102424875A 一种用硫酸烧渣制备海绵铁的方法 One kind of sponge iron with sulfuric acid residue method of preparation |
| 04/25/2012 | CN102424874A 一种鲕状赤铁矿铝铁分离的方法 An Oolitic separation method Lvtie |
| 04/25/2012 | CN102424873A 一种太阳能还原炼铁的方法和装置 A method and apparatus of the solar ironmaking |
| 04/25/2012 | CN101845530B 红土矿流化床法生产镍铁合金的工艺 Fluidized bed laterite nickel-iron alloy production process |
| 04/19/2012 | WO2012049974A1 Process for production of reduced iron |
| 04/18/2012 | EP2440677A2 Apparatus for and method of production of iron, semi steel and reducing gases |
| 04/18/2012 | CN102417991A 铜渣熔融氧化氯化-还原回收铜并制得合格铁水的方法 Copper slag of molten chloride oxidation - reduction recovery of copper and iron method to obtain qualified |
| 04/18/2012 | CN102417945A 具有中心配气装置的竖炉和控制配气量的方法 Having a shaft furnace and control methods with gas central gas distribution apparatus |
| 04/18/2012 | CN102417944A 一种利用钒钛次铁精矿融态还原冶炼酸溶性钛渣的方法 A use of vanadium and titanium times a molten iron ore smelting reduction method of acid-soluble titanium slag |
| 04/18/2012 | CN102041377B 回收钒钛磁铁精矿中铁、钒、铬的方法 Recovery of vanadium-titanium magnetite concentrate iron, vanadium, chromium methods |
| 04/18/2012 | CN102041340B 还原竖炉 Reduction shaft furnace |
| 04/17/2012 | US8157888 Process for producing molten iron |
| 04/17/2012 | US8156709 Direct smelting plant |
| 04/11/2012 | CN202186886U 一种含有甲烷的还原煤气加热装置 A reducing gas containing methane heating device |
| 04/11/2012 | CN102414530A Refractory lining for titanium ore beneficiation |
| 04/11/2012 | CN102409128A Device and process for making gas and reducing iron through coal derived fusion melting bed |
| 04/11/2012 | CN102409127A 金属氧化物高温高料层直接还原工艺 Metal oxide high temperature material layer direct reduction process |
| 04/11/2012 | CN102409126A Integrated reduction ironmaking furnace and integrated reduction ironmaking process |
| 04/11/2012 | CN102409124A 一种熔融还原连续炼铁装置 A smelting reduction ironmaking means continuous |
| 04/11/2012 | CN102407339A 一种低碳低硫还原铁粉的制备方法 A method for preparing a low-carbon low-sulfur reduced iron powder |
| 04/10/2012 | US8152894 Methods of using tires and scrap rubber in the manufacture and melting of steel and other metals |
| 04/05/2012 | WO2012042352A1 Method and apparatus for producing direct reduced iron utilizing a source of reducing gas comprising hydrogen and carbon monoxide |
| 04/04/2012 | EP2082067B1 Method and device for producing molten material |
| 04/04/2012 | CN102399998A 一种利用钒钛铁精矿融态还原冶炼酸溶性钛渣的方法 A use of vanadium-titanium-iron ore a molten slag reduction smelting method of acid-soluble |
| 04/04/2012 | CN101371306B 用于制造熔融铁的设备 The apparatus for manufacturing molten iron |
| 04/03/2012 | CA2466398C Metallurgical reactor for the production of cast iron |
| 03/29/2012 | DE102006048600B4 Verfahren und Vorrichtung zur Herstellung von geschmolzenem Material Method and apparatus for producing molten material |
| 03/28/2012 | CN102392093A Biomass-based direct-reduction ironmaking device and method |
| 03/28/2012 | CN102392092A Smelting iron making process via slag combustion |
| 03/28/2012 | CN101389916B Screw conveyor for discharging reduced iron from rotary hearth reduction furnace |
| 03/28/2012 | CN101331239B Process for producing metallic iron |
| 03/28/2012 | CN101023188B Apparatus for injecting solid particulate material into a vessel |
| 03/22/2012 | WO2012034184A1 Direct smelting process |
| 03/22/2012 | WO2011012964A8 Method for producing direct reduced iron with limited co2 emissions |
| 03/22/2012 | CA2811123A1 Direct smelting process |
| 03/21/2012 | CN202170349U 一种棚板还原罐 One kind of batts reduction tank |
| 03/21/2012 | CN102388153A Method for manufacturing high-density reduced iron and device for manufacturing high-density reduced iron |
| 03/21/2012 | CN102382921A Energy-saving environmentally-friendly reduction converter |
| 03/21/2012 | CN102382920A Method for decreasing phosphorus of high-phosphorus iron ore by adopting microwave reduction-magnetic separation |
| 03/21/2012 | CN101568650B Apparatus for manufacturing molten iron and method for manufacturing molten iron |
| 03/21/2012 | CN101437965B Method for producing liquid pig iron or liquid steel intermediate products from fine-particled material containing iron oxide |
| 03/20/2012 | US8137432 Method and furnace for melting steel scrap |
| 03/20/2012 | CA2466495C Process and apparatus for treating a fine particulate, in particular metal-containing, charge material |
| 03/15/2012 | WO2012032927A1 Reduced iron production method |
| 03/15/2012 | WO2012032073A1 Machine for the thermal treatment of solids |
| 03/14/2012 | EP2427710A1 Refractory lining for titanium ore beneficiation |
| 03/14/2012 | EP2427580A1 Integrated steel plant with production of hot or cold dri |
| 03/14/2012 | EP2004865B1 A forehearth |
| 03/14/2012 | CN102378818A Method and system for producing pig iron or fluid steel pre-products |
| 03/13/2012 | US8133299 Multiple hearth furnace for reducing iron oxide |
| 03/13/2012 | US8133296 Process for producing stainless steel using direct reduction furnaces for ferrochrome and ferronickel on the primary side of a converter |
| 03/08/2012 | WO2012029947A1 Rotary hearth furnace exhaust gas duct apparatus and method for operating same |
| 03/08/2012 | WO2012029862A1 System for feeding reduced iron material |
| 03/08/2012 | WO2012029670A1 Granular metal iron production method |
| 03/08/2012 | US20120055286 Method of manufacturing direct reduction iron and reduction firing apparatus |
| 03/08/2012 | CA2809121A1 Rotary hearth furnace exhaust gas duct apparatus and method for operating same |
| 03/08/2012 | CA2807257A1 Feeding system for reduced iron material |
| 03/08/2012 | CA2803815A1 Method for producing granular metallic iron |
| 03/07/2012 | CN101512021B Method and apparatus for reducing metalliferous material to a reduction product |
| 03/01/2012 | WO2012025321A2 Method for increasing the penetration depth of an oxygen stream |
| 03/01/2012 | CA2809192A1 Method for increasing the penetration depth of an oxygen stream |
| 02/29/2012 | EP2421941A1 Method and apparatus for sequestering carbon dioxide from a spent gas |
| 02/29/2012 | CN102365374A Method and installation for producing direct reduced iron |
| 02/29/2012 | CN102365373A A direct smelting process and apparatus |
| 02/28/2012 | US8124005 Process and apparatus for producing sponge iron |
| 02/22/2012 | CN102361992A Method for producing metallic iron |
| 02/16/2012 | WO2012020656A1 Device for production of granular metal iron, and process for production of granular metal iron |
| 02/16/2012 | CA2804305A1 Device for producing granular metal iron and process for producing granular metal iron |
| 02/15/2012 | EP2418292A1 Method for producing metallic iron |
| 02/15/2012 | EP1974061B1 Method for manufacturing molten irons and apparatus for manufacturing molten irons |
| 02/14/2012 | US8114338 Tilting-type automatic pouring method and storage medium |
| 02/14/2012 | US8114337 Lance extraction |
| 02/09/2012 | US20120031236 Method and installation for producing direct reduced iron |
| 02/08/2012 | EP2414550A1 Method and installation for producing direct reduced iron |
| 02/08/2012 | EP2006624B1 Hearth structure of rotary hearth furnace |
| 02/08/2012 | CN202139250U 隧道窑急冷风装置 Tunnel kiln emergency cooling device |
| 02/08/2012 | CN102344981A Separation and direct reduction process of iron and boron in boron-containing iron ore concentrate |
| 02/08/2012 | CN101906497B 一种利用Finex工艺输出煤气生产海绵铁的工艺 A Finex process for producing sponge iron output process gas use |
| 02/08/2012 | CN101792840B 一种含铁物料喷射还原炉及含铁物料喷射还原工艺 One iron-bearing material spray jet reduction furnace and iron-containing material reduction process |
| 02/08/2012 | CN101688757B 还原含铁氧化物的固体的方法和装置 Method and apparatus for reducing iron oxide solids |
| 02/08/2012 | CN101684507B 铁矿石气体还原直接炼钢工艺 Direct reduction of iron ore gas steelmaking process |
| 02/07/2012 | CA2511729C An apparatus for manufacturing molten iron to dry and convey iron ores and additives and manufacturing method using the same |
| 02/07/2012 | CA2465990C Method for reducing a particulate material containing a metal, especially iron ore |
| 02/01/2012 | CN102337369A High-wind-temperature rotational flow injection disturbance melting reduction and prereduction combination device and method |
| 02/01/2012 | CN102337362A Recycling method of output coal gas in iron making technology |
| 01/25/2012 | EP1634968B1 Method and apparatus for producing reduced metal |
| 01/25/2012 | CN102333893A Method for producing liquid metals |
| 01/25/2012 | CN102329912A Quick reduction method for directly reducing iron |
| 01/25/2012 | CN102329911A Process for manufacturing iron pellets from low-grade complex refractory ore through molten slag method |