| Patents for C21B 11 - Making pig-iron other than in blast furnaces (2,381) |
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| 02/18/2003 | CA2101303C Production of high titania slag from ilmenite |
| 02/13/2003 | WO2003012154A1 Iron ore briquetting |
| 02/13/2003 | WO2003012153A1 Iron ore briquetting |
| 02/13/2003 | WO2003012152A1 Iron ore briquetting |
| 02/11/2003 | US6517605 Start-up procedure for direct smelting process |
| 02/11/2003 | US6517603 Reducing metal oxides in a shaft furnace and controlling temperature of off gas from the reaction of a charge of metal oxide and reducing agent producing primary metal, wherein second metal remains in off gas |
| 02/05/2003 | CN1394965A Melt reduction iron-smelting dimethyl ether production and power generation combined production method and installation |
| 01/30/2003 | WO2003008652A1 Method of manufacturing metal iron |
| 01/22/2003 | EP1276912A1 A direct smelting process and apparatus |
| 01/09/2003 | WO2002036834A8 Method and apparatus for utilising recyclings containing iron and heavy metals while involving the use of a melting cyclone, a separating vessel, and a vessel for carrying out metallurgical treatment |
| 12/17/2002 | US6495093 Device for closing a tap hole of a metallurgical vessel |
| 12/04/2002 | EP0819182B1 A method of producing metals and metal alloys |
| 12/03/2002 | CA2217353C A method of producing metals and metal alloys |
| 11/27/2002 | EP1260599A2 Rotary drum furnace for the pyrometallurgical treatment of waste in fluidised bed |
| 11/27/2002 | EP0792938B1 Scrap melting method |
| 11/27/2002 | CN1094980C Method for controlling smelting reduction process |
| 11/19/2002 | US6482249 Direct smelting process |
| 11/12/2002 | US6478848 Direct smelting process |
| 11/05/2002 | US6475264 Direct smelting process |
| 10/24/2002 | WO2002027041A3 Method and device for distributing a lumpy bulk material |
| 10/23/2002 | EP0755736B1 Improvements in metallurgical conversion |
| 10/22/2002 | CA2247311C Smelting-reduction apparatus, and method for producing molten pig iron using the smelting reduction apparatus |
| 10/09/2002 | EP1246947A1 Method for producing pig iron |
| 10/03/2002 | WO2002036834A3 Method and apparatus for utilising recyclings containing iron and heavy metals while involving the use of a melting cyclone, a separating vessel, and a vessel for carrying out metallurgical treatment |
| 09/26/2002 | WO2002075001A2 Reduction smelting method in a shaft furnace with recovery of volatile secondary metals |
| 09/26/2002 | US20020134199 Method for recovery of metals having low vaporization temperature |
| 09/25/2002 | EP1105541B1 Method for producing liquid pig iron |
| 09/25/2002 | CN2512951Y Rotary kiln flexible driving device |
| 09/24/2002 | US6454833 Melter gasifier |
| 09/18/2002 | EP1034313B1 Device and process system for preheating steel scrap |
| 09/17/2002 | US6451085 Agglomeration of powder mixture |
| 09/17/2002 | CA2222401C Apparatus and process system for preheating of steel scrap for melting metallurgical furnaces with concurrent flow of scrap and heating gases |
| 09/11/2002 | CN1369018A Direct smelting process |
| 09/06/2002 | WO2002068700A1 Method for producing a melt iron in an electric furnace |
| 09/05/2002 | US20020123019 Rotary hearth furnace for producing reduced metal and method of producing reduced metal |
| 09/05/2002 | DE10056957C1 Verfahren zum Herstellen nichtoxidischer Keramiken A method for producing non-oxide ceramics |
| 08/27/2002 | US6440195 Process and an apparatus for producing metals and metal alloys |
| 08/21/2002 | CN1089430C DC arc furnace |
| 08/14/2002 | EP1231445A1 Through-hole sealing device |
| 08/14/2002 | EP1230403A1 A direct smelting process |
| 08/14/2002 | CN1089115C Pre-reduction method and apparatus for fused reduction |
| 08/13/2002 | US6432162 Process for melting ashes, slags or glass |
| 08/06/2002 | US6428603 Direct smelting process |
| 07/24/2002 | EP0871781B1 Process for producing foundry iron |
| 07/24/2002 | CN1360061A Rotary hearth furnace and method for producing reduced metal |
| 07/23/2002 | US6423115 Direct smelting process |
| 07/23/2002 | US6423114 Pressure control |
| 07/16/2002 | US6419724 Method for reducing iron oxides and for melting iron and installations therefor |
| 07/16/2002 | CA2188645C Metallurgical furnace vacuum slag removal |
| 06/26/2002 | CN1355853A Method for producing melt iron |
| 06/13/2002 | DE10059367A1 Process for heating recycle and/or pyrolysis gas with simultaneous material and energetic utilization of waste in recycle gas cupola furnace comprises heating the furnace |
| 06/12/2002 | EP1213362A2 Rotary hearth furnace for producing reduced metal and method of producing reduced metal |
| 06/04/2002 | US6398842 Apparatus for injecting solid particulate material into a vessel |
| 05/28/2002 | US6395054 Process for producing pozzolanes, synthetic blast furnace slags, belite or alite clinkers, or pig iron alloys from oxidic slags |
| 05/23/2002 | WO2002040407A1 Method for utilising a waste slurry from silicon wafer production |
| 05/21/2002 | US6391088 Heat treatment residues, oils and iron oxide in furnace |
| 05/15/2002 | EP1205565A1 Process of melting oxidic slags |
| 05/14/2002 | US6387153 Stable idle procedure |
| 05/10/2002 | WO2002036834A2 Method and apparatus for utilising recyclings containing iron and heavy metals while involving the use of a melting cyclone, a separating vessel, and a vessel for carrying out metallurgical treatment |
| 05/10/2002 | CA2361901A1 Metallurgical furnace with scrap metal preheater and dispenser |
| 05/08/2002 | EP0862657B1 Duplex procedure for the production of metals and metal alloys from oxidic metal ores |
| 05/02/2002 | US20020050188 Direct smelting process |
| 05/02/2002 | DE10049959A1 Elektroofen für die Stahlherstellung Electric furnace for steel production |
| 05/01/2002 | CN1083889C Method for producing melted pig iron |
| 04/30/2002 | US6379424 Direct smelting apparatus and process |
| 04/30/2002 | US6379422 Direct smelting process |
| 04/24/2002 | CN1083489C Direct smelting process for producing metal from metal oxides |
| 04/17/2002 | EP1197719A1 Electric arc furnace for steelmaking |
| 04/16/2002 | US6372011 Reprocessing in the presence of pig iron; low energy expenditure and capital investment |
| 04/09/2002 | US6368548 Direct smelting process and apparatus |
| 04/09/2002 | US6368380 Method of melt-removing impurity elements from iron |
| 04/04/2002 | WO2002027043A1 Method and device for producing a static bed |
| 03/28/2002 | WO2002024963A1 A direct smelting process and apparatus |
| 03/21/2002 | US20020033075 Method of producing iron nuggets |
| 03/20/2002 | EP1187942A1 Method for producing melt iron |
| 03/14/2002 | DE4422694C2 Düsensystem für eine Einrichtung zum Schmelzen von eisenmetallischen Werkstoffen in einem koksbeheizten Kupolofen A nozzle system for an apparatus for melting iron metallic materials in a coke-fired cupola |
| 03/13/2002 | CN1339686A Method and its device for feeding raw materials to movable hearth furnace |
| 03/06/2002 | EP0817868B1 Method for injecting fine iron ore in smelting reducing process |
| 02/21/2002 | US20020022208 Method and apparatus for charging raw and carbonaceous materials into a moving hearth furnace |
| 02/13/2002 | EP1179601A1 Method and apparatus for charging raw and carbonaceous materials into a moving hearth furnace |
| 02/13/2002 | CN1335412A Method for producing granulated metal iron |
| 02/07/2002 | US20020014725 Covered container containing solid; ionized air flow |
| 01/31/2002 | WO2002008471A1 A direct smelting process and apparatus |
| 01/31/2002 | CA2411789A1 A direct smelting process and apparatus |
| 01/30/2002 | CN1078618C Refractory wall |
| 01/29/2002 | US6342086 Method and apparatus for improved EAF steelmaking |
| 01/17/2002 | US20020005089 Method of and apparatus for manufacturing the metallic iron |
| 01/17/2002 | DE10016075C1 Method of removing impurities in ion, involves separating iron and copper phase and copper in iron phase is removed by difference in specific gravity |
| 01/16/2002 | EP1034312B1 Installation for reducing iron oxides and smelting iron |
| 01/15/2002 | CA2228154C Processing of oxidic slags |
| 01/02/2002 | EP1167547A1 Method of producing iron nuggets |
| 01/02/2002 | EP0823487B1 Melt reduction equipment and operating method |
| 12/20/2001 | US20010052272 Production of high titania slag from ilmenite |
| 12/19/2001 | EP1163375A1 Fluidized bed breakage prevention system for fluidized bed reduction reactor |
| 12/19/2001 | CN1327072A Method and device for making metal iron |
| 12/11/2001 | CA2202918C Process for producing liquid raw iron or steel basic products and iron sponge and plant for implementing it |
| 12/06/2001 | WO2001092586A1 Apparatus for injecting solid particulate material into a vessel |
| 12/05/2001 | EP1160336A1 Method of and apparatus for manufacturing metallic iron |
| 11/28/2001 | EP0996749B1 Method for controlling a smelting reduction process |
| 11/28/2001 | EP0914476B1 Apparatus for keeping optimal penetration depth formed at front end of oxygen tuyere and method for keeping the same |