| Patents for C21B 11 - Making pig-iron other than in blast furnaces (2,381) |
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| 03/08/2012 | WO2012029670A1 Granular metal iron production method |
| 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 |
| 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 |
| 02/09/2012 | US20120031232 Method and Apparatus For Coproduction of Pig Iron and High Quality Syngas |
| 02/08/2012 | CN102344976A Reduced iron for making steel from steel slags |
| 02/08/2012 | CN102051428B 一种综合处理铜选矿尾渣和镍熔融渣的提铁炼钢工艺 An integrated processing of copper and nickel mineral tailings mention molten slag iron steelmaking process |
| 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 |
| 02/01/2012 | CN202133287U 一种组合式风口小套 A modular outlet small set |
| 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 |
| 02/01/2012 | CN101624638B 燃气还原炼铁炉及其一步还原炼铁法 Gas furnace ironmaking and step ironmaking |
| 01/25/2012 | CN102329909A Method for extracting iron particles and zinc powder from dust of steel and iron plant |
| 01/25/2012 | CN102329908A System for extracting iron particles and zinc powder from dust of steel and iron plant |
| 01/25/2012 | CN101914649B Iron reducing device by utilizing steel slag |
| 01/25/2012 | CN101886203B Silicon iron product with low content of nitrogen |
| 01/10/2012 | US8092574 Method of producing reduced iron cast, and method of producing pig iron |
| 01/04/2012 | CN202099301U Casting copper cooling wall |
| 01/04/2012 | CN102304597A Method for smelting iron by utilizing sulfuric acid slag |
| 01/03/2012 | US8088195 Method for manufacturing titanium oxide-containing slag |
| 01/03/2012 | CA2636155C Use of an induction furnace for the production of iron from ore |
| 12/28/2011 | CN102301013A 竖直微波熔炉 Vertical microwave furnace |
| 12/28/2011 | CN102296139A 一种流态化还原铁矿粉时抑制粘结失流的方法 Methods of inhibiting adhesion loss of flow reduction iron ore when one kind of fluidized |
| 12/28/2011 | CN102296138A 采用直线移动床预还原－竖炉熔分工艺制备钒铁金属间化合物和钛渣的方法 Using linear moving bed pre-reduction - shaft furnace melting points between the process for the preparation of vanadium and titanium slag and iron metal compound method |
| 12/28/2011 | CN102296137A 一种从铝钒钛铁硅复合共生矿中分离有价元素回收利用的工业化生产方法 An isolated from bauxite ore ilmenite silicon complex symbiosis in industrial production methods for recycling of valuable elements |
| 12/28/2011 | CN102296136A 一种应用综合利用技术冶炼金属的方法 A method of application utilization technology of metal smelting |
| 12/15/2011 | WO2011155417A1 Granular metal production method |
| 12/15/2011 | CA2799548A1 Process for producing granular metal |
| 12/13/2011 | US8075665 Reduction treatment apparatus and method of reduction treatment |
| 12/07/2011 | CN102272337A 粒状铁的制造方法 Granular iron manufacturing method |
| 12/07/2011 | CN101974661B 熔融还原炼铁的方法和设备 Method and apparatus for smelting reduction ironmaking |
| 12/07/2011 | CN101845529B 一种熔融还原炼铁用预热还原炉 A smelting reduction furnace ironmaking preheated |
| 12/07/2011 | CN101784859B 铁浴式熔融还原炉 Iron bath smelting reduction furnace |
| 12/01/2011 | US20110290075 Nozzle for Injecting Gas Containing Oxygen Into a Pig Iron Device Having an Injector Insertion Pipe |
| 11/29/2011 | CA2521705C Direct smelting plant |
| 11/24/2011 | WO2011143703A1 Direct smelting process |
| 11/24/2011 | US20110285067 Method for producing liquid pig iron or liquid steel intermediate products from fine-particled material containing iron oxide |
| 11/24/2011 | US20110283837 Method and device for operating a smelting reduction process |
| 11/24/2011 | CA2799056A1 Direct smelting process |
| 11/23/2011 | CN202047081U Movable arc burner |
| 11/23/2011 | CN202047080U Final reducing furnace for smelting and reduction iron smelting |
| 11/23/2011 | CN202047077U Air cooling air drill applicable to ferrosilicon smelting pore drilling |
| 11/22/2011 | CA2448361C Method for producing metallic iron |
| 11/16/2011 | CN102242234A Vertical fast reduction furnace |
| 11/16/2011 | CN102242233A Oxygen blasting tuyere of COREX (coal reduction extreme) furnace |
| 11/16/2011 | CN101914647B Oxygen and coal powder blowing device of pure-oxygen smelting reduction furnace |
| 11/15/2011 | CA2534623C Electric reducing furnace |
| 11/09/2011 | EP2385146A1 Vertical microwave smelting furnace |
| 11/09/2011 | CN102234698A Novel energy-saving and environment-friendly technology for making iron and making iron alloy by using lamp-shaped furnace |
| 11/03/2011 | WO2011135485A1 A method and apparatus for making low phosphorous iron |
| 11/02/2011 | CN202024609U Material receiving device of high-temperature reduction furnace |
| 11/01/2011 | CA2513814C An improved smelting process for the production of iron |
| 10/12/2011 | CN102212629A Method for inhibiting and regulating distribution segregation of iron-making reactor by using pneumatic principle |
| 10/11/2011 | US8034283 Rotary hearth furnace and method of operating the same |
| 10/11/2011 | US8034151 Method for removing boron from silicon |
| 10/06/2011 | US20110239822 Production of ferro-alloys |
| 10/05/2011 | CN201999958U Ferromolybdenum smelting system with annular rail flat car |
| 10/05/2011 | CN101649366B Method and device for making iron by smelting reduction |
| 09/28/2011 | CN102200392A Forehearth |
| 09/28/2011 | CN102199681A Method for separating and enriching iron and rare earth in rare earth crude ore containing iron |
| 09/28/2011 | CN102199680A Cyclical low-carbon metallurgical method with tail gas conversion by plasma |
| 09/28/2011 | CN101864505B Combined method and device for smelting reduction ironmaking |
| 09/27/2011 | US8025711 System and method for producing metallic iron |
| 09/21/2011 | EP1948833B1 Method for the operation of a shaft furnace |
| 09/21/2011 | CN102191348A Technological method and device for producing high-grade nickel and stainless steel by using oxidized pellet method |
| 09/21/2011 | CN102191346A Combined type tuyere small sleeve |
| 09/21/2011 | CN101871029B Iron making method |
| 09/20/2011 | US8021460 System and method for producing metallic iron nodules |
| 09/13/2011 | US8016910 Method for producing liquid pig iron or liquid steel intermediate products from fine-particled material containing iron oxide |
| 09/07/2011 | CN201962309U 一种冶金反应罐均匀布风装置 A metallurgical reaction tank uniform air distribution device |
| 08/31/2011 | CN201952445U 矿渣炉铁液利用装置 Liquid iron furnace slag utilization device |
| 08/31/2011 | CN102168158A Shaking ladle premelting process for producing medium and low carbon ferromanganese |
| 08/31/2011 | CN102168157A Method for reducing nickel ore by using reducing rotary kiln and producing ferronickel by rusting electric furnace |
| 08/31/2011 | CN102168156A Iron and aluminum melting separation method for complicated and hard-dressing aluminum and iron intergrowth ore |
| 08/24/2011 | EP1435395B1 Granular metallic iron |
| 08/24/2011 | CN102165082A Production of ferro-alloys |
| 08/24/2011 | CN102162028A Application of laterite nickel ore to production of shaft furnace pellets, and method |
| 08/24/2011 | CN102162017A Method for comprehensively utilizing paigeite by rotary hearth furnace iron bead process |
| 08/17/2011 | CN102160220A Recycling batteries having basic electrolytes |
| 08/17/2011 | CN102159731A Process for producing molten iron |
| 08/17/2011 | CN101775455B Iron reduction device |
| 08/17/2011 | CN101748233B Method and device for smelting iron in arc furnace |
| 08/17/2011 | CN101713006B Melting gasifier test device |
| 08/17/2011 | CN101638701B Method for smelting liquid iron with carbon steel iron-containing dedusting ash |
| 08/10/2011 | CN102146490A Reduction iron making method and device |
| 08/09/2011 | US7993428 Method for manufacturing molten iron |
| 08/03/2011 | CN102140575A Novel metallurgy and casting integration method |
| 08/03/2011 | CN101792866B Method for refining ferronickel by utilizing waste alumina-based nickel accelerant |
| 07/21/2011 | WO2011087199A1 Molten iron manufacturing apparatus for reducing emissions of carbon dioxide |
| 07/20/2011 | CN102127609A Short-process ferroalloy smelting device |
| 07/20/2011 | CN101824503B Method for producing vanadiferous pigiron by adopting vanadiferous converter steel slag |
| 07/20/2011 | CN101805811B Method and device for smelting iron by using pure-oxygen and hydrogen-rich gas |
| 07/20/2011 | CN101787407B Method for reducing and extracting copper smelting waste slag through microwave carbon heating |
| 07/20/2011 | CN101705360B Copper-smelting thermal slag iron-extracting process and device |
| 07/20/2011 | CN101654738B Method for smelting chromated-nickel-containing molten iron by mixing iron scale and dedusting ash of stainless steel |