| Patents for C21B 13 - Making spongy iron or liquid steel, by direct processes (6,991) |
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| 01/25/2012 | CN102329910A Method for industrial production of reduced iron through coal-based process |
| 01/25/2012 | CN101914685B Method for preparing metal iron and zinc/zinc oxide from electric furnace dust |
| 01/24/2012 | US8101007 Method for reduction treatment of electric furnace dust |
| 01/19/2012 | WO2012007385A1 Method for producing pressed articles containing coal particles |
| 01/19/2012 | WO2012007383A1 Method for producing pressed articles containing coal particles |
| 01/19/2012 | CA2805000A1 Method for producing pressed articles containing coal particles |
| 01/18/2012 | CN102325906A Method and plant for production of substitute gas |
| 01/18/2012 | CN102321777A Method for reducing iron |
| 01/17/2012 | US8097065 System and method for producing metallic iron |
| 01/12/2012 | US20120007292 Method and apparatus for producing reduced metal |
| 01/12/2012 | US20120006156 Steel production facility |
| 01/11/2012 | CN202107716U Automatic charging and discharging unit for car-bottom furnace |
| 01/11/2012 | CN202107715U Loading and unloading process unit for producing sponge iron |
| 01/11/2012 | CN102312081A Method of preparing nickel alloy from nickel laterite ores with vehicle rapid reducing furnace |
| 01/11/2012 | CN102312032A Device for producing spongy iron |
| 01/11/2012 | CN101824505B Method for producing low-sulfur molten iron in one step by smelting and reducing copper slag |
| 01/05/2012 | WO2012002338A1 Process for producing molten steel using particulate metallic iron |
| 01/05/2012 | CA2801606A1 Process for producing molten steel using granular metallic iron |
| 01/04/2012 | CN102304600A Rotary hearth furnace adopting 2-3-section distribution and discharge mode for direct reduction production |
| 01/04/2012 | CN102304599A Method and device for producing direct reduced iron by using gas-based reduction shaft furnace |
| 01/04/2012 | CN102304598A Stock distributing simulation test device for melting gasification furnace |
| 01/04/2012 | CN101956037B Method and device for indirect heating type reduction iron making |
| 01/04/2012 | CN101871726B Automatic deslagging device at discharge end of cantilever roller way side inlet side outlet walking beam type heating furnace and method thereof |
| 01/03/2012 | US8088195 Method for manufacturing titanium oxide-containing slag |
| 01/03/2012 | US8088125 Cryoplasty device and method |
| 01/03/2012 | CA2636155C Use of an induction furnace for the production of iron from ore |
| 12/29/2011 | WO2011162427A1 Furnace having even distribution of gas |
| 12/28/2011 | EP2398923A1 Method and plant for the production of substitute gas |
| 12/28/2011 | EP1920075B1 Method for pre-heating iron agglomerates |
| 12/28/2011 | EP1605067B1 Process for producing particulate iron metal |
| 12/28/2011 | CN202090011U 一种海绵铁冶炼及固相氧化铁还原装置 One kind of sponge iron smelting and solid-phase reduction device |
| 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 | 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 |
| 12/28/2011 | CN101748234B 一种悬浮预还原短流程连续炼钢方法 One kind of suspension of short pre-reduction process continuous steelmaking method |
| 12/28/2011 | CN101356289B 用于制造铁水的方法和用于制造铁水的设备 The method for manufacturing molten iron and an apparatus for manufacturing molten iron |
| 12/21/2011 | CN101935731B 一种炼铁工艺炉顶装料工艺 One kind of top charging process ironmaking process |
| 12/21/2011 | CN101921919B Comprehensive utilization process of molten copper slag and system thereof |
| 12/21/2011 | CN101787408B 利用粗煤气显热生产直接还原铁的方法 The use of crude gas sensible heat production of direct reduced iron method |
| 12/15/2011 | WO2011155417A1 Granular metal production method |
| 12/15/2011 | CA2799548A1 Process for producing granular metal |
| 12/14/2011 | EP2395115A2 Process and equipment for the production of direct reduced iron and/or pig iron form iron ores having a high-phosphorus content |
| 12/14/2011 | CN202072720U 高温直接还原铁冷却系统 DRI temperature cooling system |
| 12/14/2011 | CN102277463A 一种还原炉及生产直接还原铁的装置 A reducing furnace and direct reduced iron production equipment |
| 12/14/2011 | CN102277462A 一种钒钛磁铁矿综合利用的方法 Utilization of a vanadium-titanium magnetite method |
| 12/14/2011 | CN102277461A 一种转底炉处理工业废渣直接还原方法 One kind of rotary hearth furnace direct reduction of industrial waste treatment method |
| 12/14/2011 | CN102274966A 用于无熔化地制备具有其它添加成分的金属制品的方法 The method for melting prepared without added ingredients having other metal products |
| 12/14/2011 | CN101787450B 一种从稀有金属矿石中富集钽铌、稀土元素、铁和磷的方法 An enrichment of rare metals tantalum and niobium from the ore, rare earth elements, iron and phosphorus method |
| 12/14/2011 | CN101528952B 热压铁块及其制造方法 Hot briquette iron and manufacturing method thereof |
| 12/08/2011 | WO2011151020A1 Process and plant for producing hot metal |
| 12/08/2011 | DE102010022773A1 Verfahren und Anlage zur Erzeugung von Roheisen Method and apparatus for producing pig iron |
| 12/07/2011 | CN1774514B 使用直接用宽粒度范围的煤生产的煤压块制造铁水的方法 Using a direct method with a wide particle size range of the coal briquette manufacturing molten iron produced by the |
| 12/07/2011 | CN102272337A 粒状铁的制造方法 Granular iron manufacturing method |
| 12/07/2011 | CN102272335A 将含氧的气体喷到生铁生产设备中的喷射式插装管的喷嘴 The oxygen-containing gas is sprayed into the pig iron production equipment jet nozzle insertion tube |
| 12/07/2011 | CN102272048A 在被分开的固体材料的移动床上的熔融材料的固化 In curing the separated solid bed material to move the molten material |
| 12/07/2011 | CN102268504A 一种焦炉煤气生产海绵铁的直接还原工艺 Direct reduction process for the production of sponge iron COG |
| 12/07/2011 | CN102268503A 一种用大粒度褐铁和赤铁矿石生产直接还原铁的工艺方法 A process for the production of direct reduced iron with a large size brown and red iron ore |
| 12/07/2011 | CN102268502A 用还原回转窑冶炼难选铁矿(渣)制取海绵铁的方法 Methods smelting reduction kiln refractory ore (slag) preparation of sponge iron |
| 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 | CN101906498B 综合冶炼钒钛铁矿的方法 Integrated smelting method Sefstromite |
| 12/07/2011 | CN101893371B 一种料流装置 One kind of material flow device |
| 12/07/2011 | CN101845529B 一种熔融还原炼铁用预热还原炉 A smelting reduction furnace ironmaking preheated |
| 12/06/2011 | US8071013 Melting starting material in a cupola furnace |
| 12/06/2011 | US8070849 Production of ferro-alloys |
| 11/30/2011 | CN202054853U 电炉冶炼用热海绵铁加料系统 Hot sponge iron smelting furnace charging system |
| 11/30/2011 | CN202054852U 用于电炉冶炼的海绵铁加料溜管装置 Sponge iron smelting furnace feed for the slip tube device |
| 11/30/2011 | CN101831560B 一种利用拜耳法赤泥砂生产铁精矿的方法 An Bayer red mud and sand iron ore production methods use |
| 11/29/2011 | CA2521705C Direct smelting plant |
| 11/29/2011 | CA2512654C Method for producing metallic iron |
| 11/24/2011 | WO2011144401A1 Method and device for regulating the temperature of process gases from plants for raw iron production for use in an expansion turbine |
| 11/24/2011 | WO2011143703A1 Direct smelting process |
| 11/24/2011 | CA2799056A1 Direct smelting process |
| 11/23/2011 | CN202047082U Spongy iron reducing tank |
| 11/23/2011 | CN101568649B Apparatus for generating energy using a sensible heat during manufacturing of molten iron and method for generating energy using the same |
| 11/23/2011 | CN101397606B Fine iron pre-reduction technology suitable for wide grain size distribution and apparatus thereof |
| 11/22/2011 | CA2448361C Method for producing metallic iron |
| 11/17/2011 | WO2011141209A1 Method and device for producing at least partially reduced metal ores and/or metals |
| 11/16/2011 | CN202039083U Preformed modified solid-state reduction tank |
| 11/16/2011 | CN1995402B Method for directly reducing iron oxide to metallic iron by using coke oven gas and the like |
| 11/16/2011 | CN102242234A Vertical fast reduction furnace |
| 11/16/2011 | CN101935730B Furnace top charging process in iron-making process |
| 11/16/2011 | CN101713007B Technique method for directly producing sponge iron by carrying out deep reduction of vanadium-extracted tailings |
| 11/15/2011 | US8057736 Hearth structure of rotary furnace hearth |
| 11/15/2011 | US8057570 Electric arc furnace steelmaking |
| 11/15/2011 | CA2534623C Electric reducing furnace |
| 11/10/2011 | WO2011138954A1 Process for production of metal iron |
| 11/09/2011 | EP2384371A1 Method and system for producing pig iron or fluid steel pre-products |
| 11/09/2011 | CN102234698A Novel energy-saving and environment-friendly technology for making iron and making iron alloy by using lamp-shaped furnace |
| 11/09/2011 | CN101831519B High-temperature high-pressure central charging distribution process method and device for melting reduction furnace |
| 11/09/2011 | CN101792841B CO2 recycle method for sponge iron gasification production |
| 11/08/2011 | US8052921 Apparatus for manufacturing molten irons |
| 11/03/2011 | WO2011135485A1 A method and apparatus for making low phosphorous iron |
| 11/02/2011 | EP2382159A2 Solidification of molten material over moving bed of divided solid material |
| 11/02/2011 | CN102232119A Process for production of direct reduced iron |
| 11/02/2011 | CN102230047A Iron-making method for producing granular iron by smelting reduction of high-phosphorus oolitic low-grade hematite in rotary hearth furnace |
| 11/02/2011 | CN102230046A A method for manufacturing briquettes directly using coal with wide range of size |
| 11/01/2011 | US8048196 Method and device for producing stainless steel without using a supply of electrical energy, based on pig-iron that has been pre-treated in a DDD installation |
| 11/01/2011 | CA2513814C An improved smelting process for the production of iron |
| 10/27/2011 | WO2011131433A1 Bentonite-bonded pressed articles from fine-grain oxidic iron carriers |
| 10/27/2011 | CA2796688A1 Bentonite-bound compacts of undersized oxidic iron carriers |
| 10/26/2011 | EP2380995A1 Smelting vessel, steel making plant and steel production method |