| Patents for C21B 13 - Making spongy iron or liquid steel, by direct processes (6,991) |
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| 10/30/2013 | CN102643976B Composite additive for producing nickel-iron particles by using laterite, and application method thereof |
| 10/30/2013 | CN102084009B Process gas purification device for melt reduction device for extracting pig iron |
| 10/24/2013 | WO2013156548A1 Apparatus and process for surface gasification in a reduction reactor shaft |
| 10/24/2013 | US20130276581 Methods of Using Tires and Scrap Rubber in the Manufacture and Melting of Steel and Other Metals |
| 10/24/2013 | DE102012103588A1 Anlage und Verfahren zur Wärmebehandlung von körnigem und stückigem Material System and method for heat treatment of granular and lumpy material |
| 10/23/2013 | EP2653568A1 Device and method for gassing areas in a reduction reactor shaft |
| 10/23/2013 | EP2652159A1 Method and system for producing direct reduced iron and/or hot metal using brown coal |
| 10/23/2013 | CN102776364B Process for recovering titanium and iron from titanomagnetite tailings |
| 10/22/2013 | US8562713 Flexible minimum energy utilization electric arc furnace system and processes for making steel products |
| 10/22/2013 | US8562712 Method and apparatus for the production of metal compounds |
| 10/17/2013 | WO2013153163A1 Method and device for producing liquid pig iron and/or sponge iron |
| 10/17/2013 | WO2013152959A1 Process and apparatus for briquette production |
| 10/17/2013 | WO2013152831A1 Method for controlling the temperature in the combustion furnace of a claus unit |
| 10/17/2013 | WO2013152486A1 Device and method for treating refractory iron ore |
| 10/16/2013 | EP2650385A1 Method and device for the manufacture of liquid pig iron and/or sponge iron |
| 10/16/2013 | CN103352097A Reducing furnace, and technology for directly reducing coal-containing pellets through preheating outside coal base |
| 10/16/2013 | CN102787196B Method for smelting stainless steel by direct reduced iron |
| 10/16/2013 | CN102787195B Stainless-steel smelting method |
| 10/16/2013 | CN101443465B Production of iron using environmentally-benign renewable or recycled reducing agent |
| 10/15/2013 | US8557014 Method for making liquid iron and steel |
| 10/09/2013 | EP2647728A1 An apparatus for manufacturing molten irons to dry and convey iron ores and additives and manufacturing method using the same |
| 10/09/2013 | CN103344118A Non-blast furnace iron making device feeding system and method |
| 10/08/2013 | CA2599208C Electric arc furnace |
| 10/02/2013 | CN102382975B Reduction roasting system of iron ore |
| 10/01/2013 | US8545593 Direct processing of metallic ore concentrates into ferroalloys |
| 09/26/2013 | WO2013041342A3 Device for feeding energy carriers onto the surface of a fixed bed |
| 09/26/2013 | DE102012005454A1 Verfahren zur Granulierung und/oder Pelletierung von eisenhaltigem Feststoff Method of granulating and / or pelleting of ferrous solid |
| 09/25/2013 | EP2641981A2 Apparatus for manufacturing molten iron and method for manufacturing molten iron using same |
| 09/25/2013 | CN103320564A Circular tunnel-type rotary hearth furnace and ironmaking method |
| 09/25/2013 | CN103320563A Treatment system of furnace top gas of COREX vertical furnace and treatment method thereof |
| 09/25/2013 | CN102337362B Recycling method of output coal gas in iron making technology |
| 09/24/2013 | US8540930 Reducing furnace and apparatus for manufacturing molten iron comprising the same |
| 09/24/2013 | CA2783205C Apparatus for manufacturing molten metal |
| 09/18/2013 | CN103305650A Efficient comprehensive utilization method of siderite resource |
| 09/18/2013 | CN103305649A Production process and device of externally-heated type vertical furnace coal based direct reduced iron |
| 09/18/2013 | CN102388153B Method for manufacturing high-density reduced iron and device for manufacturing high-density reduced iron |
| 09/17/2013 | US8535411 Production of iron from metallurgical waste |
| 09/17/2013 | US8535409 Control method for melting a metal charge and weighing device used in said method |
| 09/11/2013 | CN103290162A Device and method of COREX melting reduction ironmaking |
| 09/11/2013 | CN103290161A Equipment and method for carrying out slag-iron separation and iron reduction on refractory ore, complex ore and chemical industry ferruginous waste |
| 09/11/2013 | CN103290160A Process for producing direct reduced iron (DRI) by carrying out pure oxygen gasification on semicoke |
| 09/11/2013 | CN103290159A Method for producing directly-reduced iron powder in microwave heating manner |
| 09/11/2013 | CN103290158A Method for realizing dephosphorization of olitic high-phosphorus iron ore by use of biomass charcoal |
| 09/11/2013 | CN102643943B Rotary hearth furnace direct reduction process using oxygen enrichment and pulverized coal |
| 09/11/2013 | CN102503112B Method for preparing red mud iron reduction furnace slag cellucotton and iron reduction furnace |
| 09/04/2013 | CN103282521A Apparatus and method for manufacturing reduced iron |
| 09/04/2013 | CN103282520A Device for manufacturing reduced iron using nuclear reactor and method for manufacturing reduced iron using same |
| 09/04/2013 | CN103276290A Heat-resisting and corrosion-resisting nickel alloy billet |
| 09/04/2013 | CN103276278A Smelting reduction furnace used for smelting laterite-nickel ore |
| 09/04/2013 | CN103276213A One-step new technology for separating ferrum, titanium and vanadium in vanadium-titanium-ferrum concentrate |
| 09/04/2013 | CN103276202A Metal grained iron and aluminium oxide production method by utilization of high-ferro bauxite |
| 09/04/2013 | CN103276134A Sponge iron processing technology |
| 09/04/2013 | CN103276133A Method for producing direct reduction iron by utilizing partial oxidation of natural gas |
| 09/04/2013 | CN103276132A Method and system for co-producing direct reduction iron by using double shaft furnaces |
| 09/04/2013 | CN103276131A Comprehensive utilization process method of waste heat, residual pressure and residual gas of high-temperature raw gas |
| 09/04/2013 | CN102586593B Smelting and reduction block mass prepared by pulverized coal and dust and preparation method thereof |
| 08/28/2013 | EP2631305A1 Combination of fluidised bed reduction method and direct reduction method |
| 08/28/2013 | CN203159652U Shale gas power generation hydrogen production steelmaking unit and reducing medium supply system thereof |
| 08/28/2013 | CN203159651U Biomass power generation/hydrogen production/steel making apparatus and reducing medium supply system thereof |
| 08/28/2013 | CN203159650U Slagless production device for iron/aluminum/titanium reducing molten salt method |
| 08/28/2013 | CN103266194A Shaft furnace-electric arc furnace direct reduced iron continuous hot-feeding device and feeding control method |
| 08/28/2013 | CN102206756B Method for comprehensively recycling rare earth nickel-metal hydride battery waste through direction reduction-slag-metal melting and separation |
| 08/28/2013 | CN102181781B Granular metallic iron |
| 08/27/2013 | CA2707423C Method for producing reduced iron pellet and method for producing pig iron |
| 08/21/2013 | EP2628805A1 Method and device for reducing the raw materials containing iron oxide in a high-pressure reduction unit |
| 08/21/2013 | CN103261448A Production of iron |
| 08/21/2013 | CN103261447A Method and system for producing direct reduced iron and/or hot metal using brown coal |
| 08/21/2013 | CN103261446A Method and apparatus for producing direct reduced iron utilizing a source of reducing gas comprising hydrogen and carbon monoxide |
| 08/21/2013 | CN103255255A Gas-based shaft furnace direct reduction-electric furnace smelting separation process of vanadium titano-magnetite |
| 08/21/2013 | CN102787193B Coking reduction smelting device |
| 08/21/2013 | CN102586618B Process of smelting iron pyrite |
| 08/20/2013 | CA2566322C Direct reduction process using a single fluidised bed |
| 08/14/2013 | EP2626124A1 Method and device for reducing the raw materials containing iron oxide |
| 08/14/2013 | CN203128608U Coal-based direct reduction iron vertical furnace |
| 08/13/2013 | CA2669796C Hot briquette iron and method for producing the same |
| 08/07/2013 | EP2622106A1 Method and apparatus for producing direct reduced iron utilizing a source of reducing gas comprising hydrogen and carbon monoxide |
| 08/07/2013 | CN103233114A Method for producing nickel/ferrum from nickel laterite ores |
| 08/07/2013 | CN102586529B Rotary hearth furnace iron-making method utilizing biomass carbon-containing pellet to serve as raw material |
| 08/06/2013 | US8500866 Method and device for the treatment of product gas produced by pressure gasification of solid fuels |
| 07/31/2013 | CN203096106U Alkane-heating type reduced sponge iron vertical furnace |
| 07/31/2013 | CN103228800A Direct smelting process |
| 07/31/2013 | CN103224253A Method for calcium-free calcination production of sodium chromate and chromium-containing cast iron as co-product |
| 07/31/2013 | CN102503528B Preparation method of red mud iron reduction furnace slag light foamed ceramic and iron reduction furnace |
| 07/31/2013 | CN102433436B Method for separating iron and vanadium and titanium from vanadium titano-magnetite |
| 07/24/2013 | EP2616562A1 Direct smelting process |
| 07/24/2013 | CN203079999U Device using fine ore and coal oxygen for direct steel-making |
| 07/24/2013 | CN203079998U Rotary hearth furnace equipment for performing segment treatment on iron ore |
| 07/24/2013 | CN103221555A Apparatus for manufacturing molten iron and method for manufacturing molten iron using same |
| 07/24/2013 | CN103221554A Method for increasing the penetration depth of an oxygen stream |
| 07/24/2013 | CN103215403A Sealed smelting system and application thereof in high-titanium slag production |
| 07/24/2013 | CN102424876B Non-blast-furnace iron making process for directly reducing vanadium titanomagnetite through gas-based shaft furnace |
| 07/18/2013 | US20130180361 Direct smelting process |
| 07/17/2013 | CN103205520A Breaker of bound furnace charge in shaft furnace |
| 07/17/2013 | CN103205519A Technology for extracting iron from steel-making and ironmaking fly ash by micro-wave heating |
| 07/17/2013 | CN102534086B Method for preparing high-grade metallic iron and titanium-rich slag with titanium concentrate as raw material |
| 07/17/2013 | CN102453784B Slag capable of raising heat transfer efficiency used for melting reduction process |
| 07/17/2013 | CN102312081B Method of preparing nickel alloy from nickel laterite ores with vehicle rapid reducing furnace |
| 07/10/2013 | EP2612929A1 Granular metal iron production method |
| 07/10/2013 | CN203048972U Wide-end-surface reduction furnace equipment for direct iron reduction |
| 07/10/2013 | CN103194560A Transmission method of metallized pellet, sponge iron charging bucket and bunker of electric furnace |