| Patents for C21B 13 - Making spongy iron or liquid steel, by direct processes (6,991) |
|---|
| 07/10/2013 | CN103194559A Circular tunnel rotary hearth furnace and iron-making method |
| 07/10/2013 | CN103194557A Novel gas fusing and melting furnace |
| 07/04/2013 | DE102011090094A1 Steel plant useful for producing liquid steel, comprises smelting unit for smelting metal-containing solids, preferably e.g. direct reduced iron and hot briquetted iron, and solar power plant for supplying electrical energy to smelting unit |
| 07/03/2013 | EP2609223A2 Method for increasing the penetration depth of an oxygen stream |
| 07/03/2013 | CN203034041U System of powdered coal gasification gas making and gas-based shaft furnace direct reduction metallurgy |
| 07/03/2013 | CN103184301A Method for controlling gas backflow in melting reduction smelting |
| 07/03/2013 | CN102183149B 冶金容器 Metallurgical vessel |
| 06/27/2013 | WO2013094862A1 Tuyere assembly and molten iron manufacturing apparatus using same |
| 06/27/2013 | WO2013093640A2 Method and apparatus for production of direct reduced iron (dri) utilizing coke oven gas |
| 06/27/2013 | WO2013091847A1 Smelting cyclone and apparatus provided with such a smelting cyclone |
| 06/27/2013 | WO2013052416A4 Direct production of iron slabs and nuggets from ore without pelletizing or briquetting |
| 06/27/2013 | WO2013045260A3 Method and device for producing pig iron |
| 06/27/2013 | US20130166704 Mass Generation of Individual Virtual Servers, Virtual Web Sites, and Virtual Web Objects |
| 06/26/2013 | CN102676723B Method for smelting ash iron by using cupola furnace |
| 06/26/2013 | CN101981209B Process for production of reduced iron |
| 06/25/2013 | US8470069 Methods of using tires and scrap rubber in the manufacture and melting of steel and other metals |
| 06/25/2013 | US8470068 Heating reducible mixture (e.g., reducible micro-agglomerates; reducing material and reducible iron bearing material; reducible mixture including additives such as a fluxing agent; compacts, etc.) on hearth material layer in presence of other carbonaceous material |
| 06/25/2013 | US8470067 Process for preparing a foaming slag former, product and use thereof |
| 06/20/2013 | WO2013089546A1 Method for treating furnace dust from a steelmaking electric-arc furnace |
| 06/19/2013 | CN203007300U Iron smelting shaft furnace |
| 06/19/2013 | CN203007299U Electric arc furnace for metallurgy |
| 06/19/2013 | CN203002174U Device for removing CO2 from exhaust gas from pig iron manufacturing equipment |
| 06/19/2013 | CN102277463B Reduction furnace and device for producing direct reduced iron |
| 06/19/2013 | CN102031323B Natural gas hydro-cracking metallurgical method and equipment |
| 06/19/2013 | CN102016079B Process for producing molten metal |
| 06/13/2013 | WO2013082659A1 Starting a smelting process |
| 06/13/2013 | WO2013082658A1 Starting a smelting process |
| 06/13/2013 | CA2857684A1 Starting a smelting process |
| 06/13/2013 | CA2857681A1 Starting a smelting process |
| 06/12/2013 | CN103154276A Process for production of reduced iron |
| 06/12/2013 | CN103146866A Direct reduction process for sponge iron production implemented by using non-catalytic conversion of CH4 |
| 06/12/2013 | CN103146865A Device and method for direct reduction and iron making of pyrolyzing tar based on biomass |
| 06/12/2013 | CN102503133B Method for preparing red mud reduced slag hollow glass bead plate and iron reduction furnace |
| 06/12/2013 | CN101910423B Apparatus for manufacturing molten iron and method for manufacturing the same |
| 06/11/2013 | CA2604767C Equipment for measurement and control of load material or scrap feeding into a furnace and relative method |
| 06/05/2013 | CN202968589U Ingot-stripping device for producing sponge iron |
| 06/05/2013 | CN202968588U Indirect water cooling device for direct reduced iron |
| 06/05/2013 | CN103131816A Method for producing spongy iron through dual-based reduction and special chamber type smelting vertical furnace therefor |
| 06/05/2013 | CN103131815A Technique for producing spongy iron and nickel iron by microwave high-temperature continuous reduction |
| 06/05/2013 | CN102605174B Process method for respectively recovering nickel and iron from low-nickel high-iron laterite |
| 06/05/2013 | CN102503132B Method for preparing red mud iron reducing slag tile |
| 06/05/2013 | CN102409126B Integrated reduction ironmaking furnace and integrated reduction ironmaking process |
| 06/05/2013 | CN102382921B Energy-saving environmentally-friendly reduction converter |
| 06/05/2013 | CN102206723B Air-base direct reduction iron-making method for reducing iron concentrate powder by self-reforming of gas rich in methane |
| 05/23/2013 | WO2013073662A1 Direct-reduced iron production system |
| 05/23/2013 | WO2013073471A1 Process for manufacturing reduced iron/slag mixture |
| 05/23/2013 | CA2853420A1 Direct reduced iron manufacturing system |
| 05/22/2013 | EP2593536A1 Method for producing pressed articles containing coal particles |
| 05/22/2013 | CN101796200B Process for manufacturing molded products of direct-reduced iron and process for manufacturing pig iron |
| 05/21/2013 | US8444910 Method for operating a shaft furnace, and shaft furnace operable by that method |
| 05/21/2013 | CA2519229C Process for producing reduced metal and agglomerate with carbonaceous material incorporated therein |
| 05/15/2013 | EP2592374A1 System for feeding reduced iron material |
| 05/15/2013 | CN103108967A Direct smelting process |
| 05/15/2013 | CN103103305A Alkane-heating type reduction sponge iron shaft furnace |
| 05/15/2013 | CN102618684B Continuous melting reduction iron-making device |
| 05/10/2013 | WO2013064870A1 Process for producing direct reduced iron (dri) with less co2 emissions to the atmosphere |
| 05/08/2013 | CN202925046U Separate container for producing titanium-enriched material |
| 05/08/2013 | CN103088185A Coal-based direct reduced iron shaft furnace |
| 05/08/2013 | CN103088184A Method for regulating temperature by ferroalloy during smelting ferronickel from nickel laterite ore |
| 05/08/2013 | CN103088183A Method for smelting laterite-nickel ores through one-step controlled reduction |
| 05/08/2013 | CN103088182A Cooling method of a direct reduction vertical furnace |
| 05/08/2013 | CN103088181A Method for obtaining sponge iron by treating high-iron low-tin ore by sulfurizing volatilization direct-reduction process |
| 05/08/2013 | CN103088180A Method for preparing qualified steel-producing raw material and recovering tin by directly reducing high-iron low-tin concentrate |
| 05/08/2013 | CN102230046B A method for manufacturing briquettes directly using coal with wide range of size |
| 05/08/2013 | CN102168156B Iron and aluminum melting separation method for complicated and hard-dressing aluminum and iron intergrowth ore |
| 05/08/2013 | CN101988136B Automatic production line for directly reducing iron |
| 05/08/2013 | CN101688759B Apparatus and method for treating waste gas for rotary hearth furnace-type reducing furnace |
| 05/02/2013 | WO2013035998A3 Apparatus for producing a composite gas including carbon monoxide and hydrogen, and method therefor |
| 05/01/2013 | EP2586877A1 Furnace having even distribution of gas |
| 05/01/2013 | CN202912999U Reduction furnace for producing direct-reduced iron |
| 05/01/2013 | CN202912998U Reduction furnace provided with heating liner and used for producing direct-reduced iron |
| 05/01/2013 | CN202912997U Intermediate frequency furnace for producing direct-reduced iron |
| 05/01/2013 | CN202912996U Reduction furnace for producing direct-reduced iron |
| 05/01/2013 | CN202912995U Blowdown device of shaft furnace |
| 05/01/2013 | CN103080682A System for feeding reduced iron material |
| 05/01/2013 | CN103080681A Rotary hearth furnace exhaust gas duct apparatus and method for operating same |
| 05/01/2013 | CN103074460A Rotary hearth furnace equipment for segment handling of iron ore and handling method |
| 05/01/2013 | CN102268503B Process method for producing directly reduced iron by using large-particle-size limonite and hematite |
| 05/01/2013 | CN102168159B Reducing agent for carrying out direct reduction roasting on limonite and hematite to produce reduced iron |
| 04/25/2013 | WO2012025321A3 Method for increasing the penetration depth of an oxygen stream |
| 04/25/2013 | US20130101483 Process for extracting metals from aluminoferrous titanoferrous ores and residues |
| 04/24/2013 | CN202898489U High-temperature resistant reduction tank |
| 04/24/2013 | CN202898446U Top charging device of shaft furnace |
| 04/24/2013 | CN103060564A Novel process for preparing acid-soluble titanium-rich material and iron powder by using tunnel kiln reduction selective grinding method |
| 04/24/2013 | CN103060505A Equipment for directly making steel by using fine ore and coal oxygen |
| 04/24/2013 | CN103060504A Method for preparing sponge iron by biomass char |
| 04/24/2013 | CN103060503A Pressure control in direct smelting process |
| 04/24/2013 | CN102534087B Method for preparing metallized pellets by utilizing stannum-zinc-arsenic-contained complex iron ore |
| 04/24/2013 | CN101910421B Method for forecasting sharp drop of pressure of melter-gasifier and method for controlling the pressure in ironmaking process |
| 04/17/2013 | CN202885574U Air cooling barrel of internal spiral type air cooling device special for reduction of iron powder |
| 04/17/2013 | CN103045788A Reduction steel-making method and reduction steel-marking device |
| 04/17/2013 | CN103045787A Method and device for observing growth process of iron whiskers on surfaces of iron ore powder particles |
| 04/17/2013 | CN103042223A Reduced iron powder production process |
| 04/17/2013 | CN102382920B Method for decreasing phosphorus of high-phosphorus iron ore by adopting microwave reduction-magnetic separation |
| 04/16/2013 | US8419825 Method and system for energy-optimized and CO2 emission-optimized iron production |
| 04/11/2013 | WO2013052416A1 Direct production of iron slabs and nuggets from ore without pelletizing or briquetting |
| 04/10/2013 | EP2578703A1 Granular metal production method |
| 04/10/2013 | EP2576845A1 Process and plant for producing hot metal |
| 04/10/2013 | CN202865252U Hot blast valve for hot blast furnace system of direct reduction iron shaft furnace |
| 04/04/2013 | WO2013044410A1 Smelting tank |