| Patents for C21B 13 - Making spongy iron or liquid steel, by direct processes (6,991) |
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| 01/02/2008 | EP1872074A1 Equipment for measurement and control of load material or scrap feeding into a furnace and relative method |
| 12/27/2007 | US20070296127 Method and apparatus for cooling reduced-iron agglomerate |
| 12/27/2007 | US20070295165 Process for Producing Molten Iron and Apparatus Therefor |
| 12/26/2007 | CN100357457C Metal ferrochromium preparing method by computer-controlled double microwave ovens |
| 12/25/2007 | US7311519 Raw material feeding apparatus for rotary hearth furnace |
| 12/21/2007 | WO2007062434A3 A mineral recovery process |
| 12/20/2007 | US20070290419 Metallurgical Processing Installation |
| 12/20/2007 | DE112005002550T5 Gaseinblaslanze Gaseinblaslanze |
| 12/19/2007 | EP1867736A1 Process for producing ferronickel |
| 12/19/2007 | CN100355911C Method for operating rotary hearth type reducing furnace and rotary hearth type reducing furnace facilities |
| 12/19/2007 | CN100355910C Composite carbon containing pellet |
| 12/18/2007 | CA2337177C Induction furnace for a metal reduction and melting process |
| 12/12/2007 | EP1445336B1 Method for producing metallic iron |
| 12/06/2007 | US20070277392 Method for drying synthetic resin pellets |
| 12/05/2007 | EP1713940A4 A method for manufacturing briquettes directly using coal with wide range of size, the method using the same and the apparatus using the same |
| 12/05/2007 | CN200985332Y Blast furnace for reduction sponge iron |
| 12/05/2007 | CN101082068A Method for separating and extracting multiple metallic elements from vanadium titanium magnetic iron ore |
| 12/05/2007 | CN100352950C Melting process of weather-resistant steel |
| 12/05/2007 | CN100352948C Rotary hearth furnace and screw for discharging reduced iron |
| 11/29/2007 | WO2007134382A1 Direct smelting vessel and cooler therefor |
| 11/29/2007 | US20070272058 Direct Smelting Plant and Process |
| 11/29/2007 | CA2652236A1 Direct smelting vessel and cooler therefor |
| 11/28/2007 | EP1860519A2 Mass Generation of Individual Virtual Servers, Virtual Web Sites and Virtual Web Objects |
| 11/28/2007 | CN101080503A 气体喷枪 Gas gun |
| 11/22/2007 | WO2007082030A3 Use of an induction furnace for the production of iron from ore |
| 11/22/2007 | US20070266824 Using a slag conditioner to beneficiate bag house dust from a steel making furnace |
| 11/15/2007 | WO2007129927A1 Method for continuously processing iron oxide-containing materials and a unit for carrying out said method |
| 11/15/2007 | US20070261321 Method of Building a Direct Smelting Plant |
| 11/14/2007 | EP1320633B1 A direct smelting process and apparatus |
| 11/14/2007 | CN100348736C Process for preparing spherical, oblate spherical and diamond shape sponge iron by QF-LY method |
| 11/08/2007 | WO2007124870A2 Method for producing liquid pig iron or liquid steel intermediate products from fine-particled material containing iron oxide |
| 11/08/2007 | US20070258843 Metallic iron nuggets |
| 11/08/2007 | US20070256519 Fluidized beds; iron ore |
| 11/08/2007 | US20070256518 Ironmaking and Steelmaking |
| 11/08/2007 | CA2650424A1 Method for producing liquid pig iron or liquid steel intermediate products from fine-particled material containing iron oxide |
| 11/07/2007 | EP1753883B1 A direct reduction process and apparatus |
| 11/07/2007 | EP1658467B1 Electric reducing furnace |
| 11/07/2007 | CN101067158A Equipment for electric heating continuous producing spongeiron |
| 11/07/2007 | CN100347506C Method and device for distributing lumpy bulk material |
| 11/01/2007 | WO2007122928A1 Process for producing molten iron and apparatus for producing molten iron |
| 11/01/2007 | WO2007122509A2 Method and apparatus for producing direct reduced iron |
| 11/01/2007 | US20070251350 High Temperature and Vibration Joint Closure Composition and Method of Application |
| 10/31/2007 | CN100345981C Direct smelting plant and process |
| 10/30/2007 | CA2230489C Process for treating metal oxide fines |
| 10/25/2007 | US20070245855 energy efficiency |
| 10/25/2007 | US20070245853 Producing wustite; achieve maximum preheating temperature without forming magnetite; using multiple reaction zones; flowing reducing gas and particulate matter in opposing directions |
| 10/24/2007 | EP1847625A1 Bulky product and method for producing bulky product |
| 10/24/2007 | CN100344773C Hot material conveyor |
| 10/18/2007 | WO2007116878A1 Screw conveyor for discharging reduced iron from rotary hearth reduction furnace |
| 10/18/2007 | WO2007098551A9 Direct smelting plant |
| 10/17/2007 | EP1844168A1 Method and system for producing metallic iron nuggets |
| 10/17/2007 | EP1844167A1 Method and system for producing metallic iron nuggets |
| 10/17/2007 | CN101056997A Device for removing particles on the sieve from palletizing prilling disk |
| 10/17/2007 | CN101054628A Technique for extracting titanium slag form red mud |
| 10/17/2007 | CN100343396C Method of producing molten iron in duplex furnaces |
| 10/16/2007 | US7282172 Vertical shaft melting furnace |
| 10/10/2007 | CN100342036C Direct smelting process and apparatus |
| 10/04/2007 | WO2007111593A1 Granulated metallic iron superior in rust resistance and method for producing the same |
| 10/04/2007 | US20070227301 Reduction of a melt of iron ore and a carbonaceous reducucing agent, such as coke, and a basic slag; heating, carburizing, melting, and causing cohesion; metallurgy; high-purity iron particles, diameter, 1-30 mm; < .50% sulfur, carbon, silicon, manganese |
| 10/04/2007 | CA2642896A1 Granulated metallic iron superior in rust resistance and method for producing the same |
| 10/03/2007 | EP1242636B1 Method and device for feeding a gas to a metallurgical vessel |
| 10/03/2007 | CN101048516A Process for producing molten iron and apparatus therefor |
| 09/27/2007 | WO2007106946A1 A forehearth |
| 09/27/2007 | CA2641061A1 A forehearth |
| 09/26/2007 | CN101042279A Rabble arm for a furnace |
| 09/19/2007 | CN101037713A Method for directly reducing ferronickel by tunnel kiln using laterite-nickel ore as raw material |
| 09/13/2007 | US20070209479 Method And Apparatus For Reducing Metal-Oxygen Compounds |
| 09/12/2007 | EP1831406A1 Method and device for producing metals and/or metal initial products |
| 09/12/2007 | CN200946981Y Furnace for producing reduced iron |
| 09/12/2007 | CN101035920A Production of ferro-alloys |
| 09/12/2007 | CN100336921C Method for extracting aluminium and iron from high-iron bauxite trihydrate |
| 09/12/2007 | CN100336915C One and half step melting deacidizing iron-smelting method |
| 09/07/2007 | WO2007100076A1 Rotary hearth |
| 09/07/2007 | WO2007099315A1 Reduction processing of metal-containing ores in the presence of microwave and rf energy |
| 09/07/2007 | WO2007098551A1 Direct smelting plant |
| 09/07/2007 | CA2642968A1 Reduction processing of metal-containing ores in the presence of microwave and rf energy |
| 09/07/2007 | CA2642674A1 Direct smelting plant |
| 09/05/2007 | CN101029344A Fast sponge-iron reduction |
| 08/30/2007 | WO2007097729A1 Power-processing plant for solid fuel heat treatment |
| 08/30/2007 | WO2007096267A1 Method for producing molten pig iron or steel pre-products in a melter gasifier |
| 08/29/2007 | EP1826281A1 Method for producing molten pig iron or steel pre-products in a melter gasifier |
| 08/23/2007 | US20070194505 Direct smelting plant and process |
| 08/22/2007 | CN1333091C Process and apparatus for extracting zinc |
| 08/22/2007 | CN101023311A Smelting apparatus |
| 08/22/2007 | CN101023188A Apparatus for injecting solid particulate material into a vessel |
| 08/22/2007 | CN101023023A Method and apparatus for producing clean reducing gases from coke oven gas |
| 08/22/2007 | CN101020938A Direct reduction iron producing technology |
| 08/22/2007 | CN101020937A New process of producing direct reduction iron |
| 08/22/2007 | CN101020936A V-Ti magnetite reducing process |
| 08/22/2007 | CN101020935A Process and product of nickel and chromium containing pig iron with fume or scale containing nickel and chromium |
| 08/15/2007 | EP1405924B1 Method for producing granular metal |
| 08/15/2007 | EP1292713B1 Direct smelting process and apparatus |
| 08/15/2007 | EP0969105B1 Method of operating a movable hearth furnace for reducing oxides |
| 08/09/2007 | WO2007088166A1 Reduction process and plant |
| 08/07/2007 | CA2236587C Duplex procedure for the production of metals and metal alloys from oxidic metal ores |
| 08/02/2007 | WO2007065582A3 Conveying system, combined system, and method for coupling metallurgical processes |
| 08/01/2007 | EP1813685A2 Method of operation of reducing rotary hearth furnace and reducing rotary hearth furnace facility |
| 08/01/2007 | CN1329537C Method for reducing chromium containing raw material |
| 07/26/2007 | WO2007083450A1 Process for producing metallic iron |
| 07/26/2007 | US20070170624 Method for renovating a combined blast furnace and air/gas separation unit system |