| Patents for C21B 13 - Making spongy iron or liquid steel, by direct processes (6,991) |
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| 06/16/2005 | WO2005054521A1 Metal scrap submergence apparatus |
| 06/16/2005 | WO2005054520A1 An apparatus for manufacturing a molten iron directly using fine or lump coals and fine iron ores, the method thereof, the integrated steel mill using the same and the method thereof |
| 06/16/2005 | US20050127581 Supplying solid feed materials for a direct smelting process |
| 06/16/2005 | US20050126341 Method and device for producing pig iron and/or pig iron intermediate products |
| 06/16/2005 | CA2547337A1 Metal scrap submergence apparatus |
| 06/15/2005 | CN1206372C Method for producing pig iron |
| 06/08/2005 | EP1320633A4 A direct smelting process and apparatus |
| 06/08/2005 | CN1624160A Sponge iron ocntained nickle and its preparation process, process for producing nickle alloy steel blank |
| 06/08/2005 | CN1623896A CO generator |
| 06/01/2005 | CN1623003A Method for producing metallic iron |
| 06/01/2005 | CN1621537A Metallurgical reactor for the production of cast iron |
| 06/01/2005 | CN1204273C Direct reduction process for rotary kiln |
| 05/25/2005 | CN1620516A Method for making molten iron |
| 05/25/2005 | CN1203190C Method and device for prdoucing pig iron or liquid steel intermediate from charge materials containing iron ore |
| 05/19/2005 | US20050103160 Method for discharging reduced product from a movable-hearth furnace and a discharging device |
| 05/18/2005 | EP1383933B1 Method for producing a melt iron in an electric furnace |
| 05/12/2005 | US20050100496 CO generator |
| 05/11/2005 | EP1529121A1 Process and apparatus for the direct reduction of iron oxides in an electrothermal fluidized bed and resulant product |
| 05/11/2005 | CN1201022C Recyclin method of waste material by coal-based iron making process |
| 05/11/2005 | CN1201021C Method for producing sponge iron, and reduced iron powder and method for production thereof |
| 05/06/2005 | WO2005040433A2 Direct smelting plant and process |
| 05/06/2005 | CA2541893A1 Direct smelting plant and process |
| 05/05/2005 | US20050092130 Process and apparatus for the direct reduction of iron oxides in an electrothermal fluidized bed and resultant product |
| 05/04/2005 | EP1112387B1 Direct smelting vessel and direct smelting process |
| 04/28/2005 | US20050087039 Reducing and melting raw material of iron oxide-containing material and carbonaceous reducing agent; heating after a powder and granular atmosphere control carbonaceous material is spread on hearth of heat-reducing furnace; no resolidification of carbon; solid phase, efficiency, stability |
| 04/27/2005 | EP1525374A2 Work recovery from process involving steam generation |
| 04/27/2005 | EP1404881B1 A gas injection lance |
| 04/27/2005 | EP1137815B1 A process and an apparatus for producing metals and metal alloys |
| 04/27/2005 | CN1198945C Method and equipment for producing metal iron, |
| 04/21/2005 | WO2005035796A1 Reactor for producing iron and the alloys thereof |
| 04/20/2005 | CN1197985C High-activity reduction agent for smelting iron alloy by electric oven |
| 04/20/2005 | CN1197982C Pressure control |
| 04/19/2005 | CA2207395C A process for the direct reduction of particulate iron-containing material and a plant for carrying out the process |
| 04/14/2005 | WO2005033347A1 Method and apparatus for reducing metal-oxygen compounds |
| 04/14/2005 | DE10260731B4 Verfahren und Anlage zur Wärmebehandlung von eisenoxidhaltigen Feststoffen Method and apparatus for heat treatment of solids containing iron oxide |
| 04/13/2005 | EP1521853A2 Metallurgical vessel and method of iron making by means of direct reduction |
| 04/13/2005 | EP1521851A2 Direct production of refined metals and alloys |
| 04/12/2005 | CA2358425C Fluidized bed breakage prevention system for fluidized bed reduction reactor |
| 04/12/2005 | CA2341365C 2-stage fluidized bed type fine iron ore reducing apparatus, and reducing method using the apparatus |
| 04/07/2005 | WO2005031009A2 Method and apparatus for producing molten iron |
| 04/06/2005 | CN1195876C Method and installation for producing metal melt |
| 03/31/2005 | WO2005028684A1 Self-reducing, cold-bonded pellets |
| 03/31/2005 | WO2005014866A3 Process and plant for reducing solids containing iron oxide |
| 03/30/2005 | CN1602363A Method for producing titanium oxide containing slag |
| 03/30/2005 | CN1600869A Technique for converting coal gas |
| 03/30/2005 | CN1195077C Rotary Hearth furnace and method for producing reduced metal |
| 03/30/2005 | CN1195076C Process of coal-gas one-step production of direct-reduction iron and production apparatus |
| 03/29/2005 | US6872074 Method for discharging reduced product from a movable-hearth furnace and a discharging device |
| 03/24/2005 | US20050061207 Self-reducing, cold-bonded pellets |
| 03/22/2005 | US6869585 Method and apparatus for supplying hydrogen and portable cassette for supplying hydrogen |
| 03/17/2005 | DE10336676A1 Verfahren und Anlage zur Reduktion von eisenoxidhaltigen Feststoffen Method and apparatus for reduction of iron oxide-containing solids |
| 03/10/2005 | WO2005022062A1 Electric reducing furnace |
| 03/10/2005 | WO2004101829A3 Method and apparatus for improved use of primary energy sources in integrated steel plants |
| 03/10/2005 | US20050053529 Method and device for treating a fine-particled feedstock especially containing metal |
| 03/09/2005 | EP1177322B1 A fluidized bed reactor for preventing the fine iron ore from sticking therein and method therefor |
| 03/09/2005 | CN1191989C Equipment for producing material containing triferric carbide |
| 03/03/2005 | WO2002090726A3 Work recovery from process involving steam generation |
| 03/02/2005 | EP1509626A1 Furnace sidewall structure of rotary hearth furnace |
| 03/02/2005 | EP1325159A4 A direct smelting process and apparatus |
| 03/02/2005 | CN1191377C Production process of directly reduced iron with carbon-containing iron ore pellet |
| 03/02/2005 | CN1191376C Directly amelting apparatus |
| 02/24/2005 | WO2005017233A2 Insulated cold hearth for refinning metals having improved thermal efficiency |
| 02/24/2005 | WO2004057044A3 Method and plant for the heat treatment of solids containing iron oxide |
| 02/23/2005 | CN1585826A Method for producing metallic iron |
| 02/23/2005 | CN1585825A Method and device for treating a fine-particled feedstock especially containing metal |
| 02/23/2005 | CN1584059A Lotus form furnace and preparing method for sponge iron |
| 02/22/2005 | US6858061 Method and device for producing pig iron or liquid steel pre-products from charge materials containing iron ore |
| 02/17/2005 | WO2005014866A2 Process and plant for reducing solids containing iron oxide |
| 02/17/2005 | WO2004097055A3 Fluidized bed for treating iron oxide |
| 02/17/2005 | DE10335847A1 Electric arc reduction furnace for reducing slag in the recovery of metallic components comprises a charging opening for charging material which simultaneously acts as an exhaust gas line opening for the gas produced |
| 02/17/2005 | CA2534863A1 Process and plant for reducing solids containing iron oxide |
| 02/15/2005 | CA2348940C Iron production method of operation in a rotary hearth furnace and improved furnace apparatus |
| 02/10/2005 | US20050028643 Heating with reducing agents to reduce iron oxide to iron |
| 02/09/2005 | CN1576379A Effective utilizing method for carbon resource |
| 02/02/2005 | CN1572889A Combined steel and iron making equipment |
| 01/26/2005 | CN1570153A One and half step melting deacidizing iron-smelting method |
| 01/12/2005 | EP1017619A4 Oxygen-fuel boost reformer process and apparatus |
| 01/12/2005 | CN1563433A Iron making method and melting facility for deoxidizing in rotary hearth furnace and melting and separating in flame furnace |
| 01/12/2005 | CN1184333C Multiple molten pool oxygen steel-making furnace for iron core reducing melting and its technological process |
| 01/11/2005 | US6840981 Rotary bed-type direct reducing furnace; friction resistance |
| 01/11/2005 | CA2338069C Shaft furnace |
| 01/06/2005 | US20050000320 Combined pre-treatment process for enabling feed material to be charged in direct reduction processes |
| 01/06/2005 | US20050000162 Method and apparatus for gasifying waste automotive tires to produce high quality solid carbon and non-condensable synthesis gas |
| 01/05/2005 | EP1157137B1 Method for modelling a reduction process |
| 01/05/2005 | CN1183261C Electric arc furnace for reducing and smelting iron ore |
| 01/04/2005 | US6837916 Smelting reduction method |
| 01/04/2005 | CA2306805C Method and apparatus for making metallic iron |
| 12/30/2004 | US20040262823 Direct smelting plant |
| 12/30/2004 | US20040262822 Reduced iron mass cooling method and cooling device |
| 12/30/2004 | US20040261575 Preheating feed material to a temperature of from about 200 C to about 500 C, without reduction, in a non-reducing atmosphere prior to charging the feed material to gas-based direct reduction furnace;thereby minimizing the formation of fines within the furnace |
| 12/29/2004 | WO2004072309A3 Multivariate, predictive regulation of a direct reduction process |
| 12/29/2004 | EP1036203B1 Method and apparatus for controlling dri carburization |
| 12/29/2004 | CN1559003A Rotary hearth furnace and screw for discharging reduced iron |
| 12/29/2004 | CN1558959A Method for drying molding containing oxidized metal, method for reducing oxidized metal and rotary hearty type metal reduction furnace |
| 12/29/2004 | CN1558958A Process for reducing metal-containing, in particular iron-ore-containing, particulate material |
| 12/29/2004 | CN1557974A Method for producing ferrum products |
| 12/29/2004 | CN1557973A Method for producing ferrum products using low temperature reduction of iron ore powder |
| 12/29/2004 | CN1182259C Method for producing melt iron |
| 12/23/2004 | US20040256773 Direct smelting plant and process |
| 12/22/2004 | CN1556864A Reduced iron mass cooling method and cooling device |