Patents
Sitemap › C21 - Metallurgy of iron › C21B - Manufacture of iron or steel › C21B 13 - Making spongy iron or liquid steel, by direct processes
Patents for C21B 13 - Making spongy iron or liquid steel, by direct processes (6,991)
12/2010
12/28/2010US7858020 Molten metal flow powered degassing device
12/28/2010US7858019 Apparatus for manufacturing molten irons by hot compacting fine direct reduced irons
12/22/2010EP1587962B8 An improved smelting process for the production of iron
12/22/2010CN1842605B An apparatus for manufacturing compacted irons of reduced materials comprising fine direct reduced irons and an apparatus for manufacturing molten irons using the same
12/22/2010CN1771340B Method for producing improved coal for use in metallurgy, and method for producing reduced metal and slag containing oxidized nonferrous metal
12/22/2010CN101921888A Production method of direct reduced iron and reduction roasting device
12/21/2010US7854909 Method and device for treating a fine-particled feedstock especially containing metal
12/21/2010US7854786 Reduction process and plant
12/21/2010US7854785 includes cooling step of secondary metallurgy slag by means of passage of air and/or other gas, a breakdown step comprising transformation of several phases present in secondary metallurgy slag into powder, and step of extracting powder, wherein breakdown step is accelerated by forced convection of air
12/16/2010WO2010143203A2 Apparatus for and method of production of iron, semi steel and reducing gases
12/16/2010DE202010008866U1 Einrichtung zum Erhalten von geschmolzenem Metall und Synthesegas Means for obtaining molten metal, and synthesis gas
12/15/2010EP2004868B1 Reduction processing of metal-containing ores in the presence of microwave and rf energy
12/15/2010EP1713940B1 Method for manufacturing molten irons
12/15/2010CN101914685A Method for preparing metal iron and zinc/zinc oxide from electric furnace dust
12/14/2010US7850902 Apparatus for manufacturing molten irons
12/14/2010US7850681 Cryoplasty device and method
12/14/2010CA2520070C Method for producing upgraded coal for use in metallurgy and method for producing reduced metal and slag containing oxidized nonferrous metal using the coal
12/14/2010CA2401805C Direct smelting process and apparatus
12/08/2010CN101910423A Apparatus for manufacturing molten iron and method for manufacturing the same
12/08/2010CN101910422A Apparatus and method for recovering excess gas generated in ironmaking process
12/08/2010CN101910421A Method for forecasting sharp drop of pressure of melter-gasifier and method for controlling the pressure in ironmaking process
12/08/2010CN101907104A DCS (Distributed Control System) control method for cooling fan of COREX slag powder grinding system
12/08/2010CN101906531A Method for extracting iron, vanadium and titanium from vanadium titano-magnetite
12/08/2010CN101906501A Direct steelmaking process by using fine ores, coal and oxygen
12/08/2010CN101906500A Method for directly producing chrome-base alloy steel by comprehensively using calcium-free chrome slag
12/08/2010CN101906499A Iron-making method for treating sulfate slag by direct reduction, grinding and sorting
12/08/2010CN101906498A Method for comprehensively smelting sefstromite
12/08/2010CN101906497A Process for producing sponge iron by using output gas of Finex process
12/08/2010CN101565766B Shaft furnace emptying technique of COREX smelting reduction device
12/08/2010CN101538631B Process and device for smelting ferronickel and nickel-containing molten iron by using lower-nickel materials
12/08/2010CN101492768B High-efficiency method and equipment for homogeneous mixture of material
12/07/2010US7846379 Industrial furnace
12/07/2010US7846235 a carbonaceous reducing agent (coal) and iron oxide is fed onto a hearth of a moving hearth reducing-melting furnace and is then heated so that the iron oxide is reduced and melted, metallic iron to be obtained is cooled and is then discharged outside the furnace for recovery
12/02/2010WO2010136378A1 Method and device for the reduction of oxidic iron carriers using a reducing gas from a coal gasifier
12/02/2010US20100300247 Method for producing reduced metal and slag containing oxidized nonferrous metal using an upgraded coal
12/01/2010EP1291318B1 Method and apparatus for supplying hydrogen
12/01/2010CN201660652U Water seal structure between hearth and furnace wall of rotary hearth furnace
12/01/2010CN201660651U Blasting device for non-blast furnace iron making
12/01/2010CN101899546A Method for cooling sponge iron
12/01/2010CN101519707B Process and multistage fluidized bed for hematite prereduction
12/01/2010CN101497933B Method for rapidly and directly reducing haematite or limonite into ferrous powder
12/01/2010CN101476012B Feeding apparatus for feeding to rotary hearth furnace turntable and feeding system of rotary hearth furnace
12/01/2010CN101397598B Coal fine preparation, blowing method and device from packed-bed smelting reduction furnace
12/01/2010CN101397597B Method for producing spongy iron by direct reduction of dry coal powder gasification and hot coal gas fine ore fluidized bed
12/01/2010CN101121551B Sphere sponge iron used for treating water and preparation method thereof
12/01/2010CN101023311B Smelting apparatus
11/2010
11/30/2010CA2462831C Method for manufacturing titanium oxide-containing slag
11/30/2010CA2408720C Method and device for producing pig iron or liquid steel pre-products from charge materials containing iron ore
11/25/2010US20100294079 Metal oxide-bearing green pellets for reducing furnace, method of production of same, method of reduction of same, and reduction facility
11/25/2010DE10205660B4 Verfarhen und Vorrichtung zur kontinuierlichen Stahlherstellung unter Einsatz von metallischen Einsatzmaterial Verfarhen and apparatus for the continuous production of steel using metallic feed
11/24/2010EP2252710A1 Method and device for producing liquid pig iron or liquid steel precursor products
11/24/2010CN201648430U Two-step method melting reduction and prereduction burden material antisticking device
11/24/2010CN201648429U Converting furnace for smelting reduction iron making
11/24/2010CN201648414U Ferruginous material jet reduction furnace
11/24/2010CN1782099B Apparatus for injecting gas into a vessel
11/24/2010CN101893371A Material flow device
11/24/2010CN101892414A Method for producing alloy steel by directly utilizing low-grade nickel-chromium commensal iron ore
11/24/2010CN101892413A Process for smelting ferronickel in tunnel kiln
11/24/2010CN101892340A Method for preparing metallic iron by direction reduction in shaft furnace
11/24/2010CN101892339A Melting reduction device and method
11/24/2010CN101892081A Process for chemical poly-generation of coal-based energy
11/18/2010WO2010131753A1 Method for manufacturing high-density reduced iron and device for manufacturing high-density reduced iron
11/17/2010CN101886154A Method for preparing low-copper molten iron by mixed melting reduction of copper slag and iron ore
11/17/2010CN101346478B Method for manufacturing molten irons by injecting a hydrocarbon gas and apparatus for manufacturing molten irons using the same
11/11/2010WO2010129643A1 Refractory lining for titanium ore beneficiation
11/11/2010WO2010128402A1 Integrated steel plant with production of hot or cold dri
11/11/2010DE202007019169U1 Schachtofen Shaft furnace
11/11/2010CA2758574A1 Refractory lining for titanium ore beneficiation
11/10/2010CN201626970U Gasification and iron smelting device with cold bonded pellets containing iron and coal powder
11/10/2010CN101624639B Method for preventing fluidization high-hydrogen reduction bonding defluidization of iron ore powder
11/10/2010CN101310027B Tuvere tuyere of melter-gasifier
11/09/2010US7828873 use to smelt an iron containing feed material to produce molten iron in accordance with the HIsmelt process, direct smelting of iron ore
11/03/2010EP2246447A1 Method for producing slag containing oxidized nonferrous metal using upgraded coal
11/03/2010CN101550463B Novel direct-reduction rotary hearth furnace
11/02/2010US7824603 Direct reduction apparatus and process
10/2010
10/28/2010US20100270715 Apparatus for Manufacturing Molten Irons by Hot Compacting Fine Direct Reduced Irons
10/28/2010US20100269636 Direct reduction apparatus and process
10/27/2010EP2243845A1 Method for producing reduced metal using upgraded coal
10/27/2010EP2242861A1 Method for melting raw iron while recirculating blast furnace gas by adding hydrocarbons
10/27/2010EP0910295B1 Cryoplasty device
10/27/2010CN101871032A Production method for high-temperature alloy tank
10/27/2010CN101871031A Method and equipment for preparing reducing gas from coke oven gas to produce sponge iron
10/27/2010CN101871030A Production process of byproduct iron of thermal power plant and reduction kiln thereof
10/27/2010CN101870493A Method for comprehensively treatment of pyrite and desulphurized gypsum by utilizing coal and system thereof
10/27/2010CN101336302B Conveying system, combined system, and method for coupling metallurgical processes
10/26/2010US7819940 based on liquid pig iron and FeCr solids, invention proposes the use of the AOD (Argon Oxygen Decarburization) process in which oxygen and inert gas together are blown into bath through nozzles and top-blown onto surface of bath by blowing lance; minimizes chromium losses
10/21/2010WO2010077179A3 Method and device for the plasma chemical processing of substances
10/20/2010CN201611212U 用于corex炉dri布料器浇注成型的模具 Dri distributor for corex furnace casting molding mold
10/20/2010CN201610435U 转底炉转底机械装置 Rotary hearth furnace hearth mechanical devices
10/20/2010CN101864506A Method for preparing direct reduced iron from low-grade high-phosphorus high-silicon iron ore
10/20/2010CN101864505A Combined method and device for smelting reduction ironmaking
10/19/2010US7815710 Metal oxide-containing green pellet for reducing furnace, method for production thereof, method of reduction thereof, and reduction facilities
10/19/2010CA2419508C A gas injection lance
10/19/2010CA2341009C Direct smelting plant
10/14/2010WO2010117008A1 Method for producing metallic iron
10/14/2010CA2757346A1 Method for producing metallic iron
10/13/2010EP2238269A1 Method for forecasting sharp drop of pressure of melter-gasifier and method for controlling the pressure in ironmaking process
10/13/2010CN201605287U 一种铁系氧化物砖 An iron-based oxide brick
10/13/2010CN201605286U 一种氧化镍矿砖 An oxidized nickel ore brick
10/13/2010CN201605285U 海绵铁生产装罐线 Sponge iron production canning line
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