| Patents for C21B 11 - Making pig-iron other than in blast furnaces (2,381) |
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| 11/28/2001 | EP0896636B1 Smelting-reduction apparatus, and method for producing molten pig iron using the smelting reduction apparatus |
| 11/28/2001 | CN1324411A Method for producing a metal melt and corresponding multifunction lance |
| 11/27/2001 | US6322745 Direct smelting vessel and direct smelting process |
| 11/22/2001 | WO2001088207A1 Method and device for producing pig iron or liquid steel pre-products from charge materials containing iron ore |
| 11/21/2001 | EP0990053B1 Process and plant for producing iron smelt in an electric arc furnace by using agglomerated, iron-containing steel work residues |
| 11/21/2001 | EP0792939B1 Method of melting tinned iron scrap |
| 11/21/2001 | CN1323357A A process and an apparatus for producing metals and metal alloys |
| 11/20/2001 | US6319302 Method for manufacturing reduced iron agglomerates and apparatus there for |
| 11/14/2001 | EP0842301B1 Method for making pozzolans, synthetic blast-furnace slag, belite or alite clinkers, and pig-iron alloys, from oxidic slag, and a device for implementig this method |
| 11/07/2001 | EP1017860B1 Refractory wall, metallurgical vessel comprising such a refractory wall and method in which such a refractory wall is applied |
| 11/01/2001 | WO2001081637A1 A direct smelting process and apparatus |
| 10/30/2001 | CA2219763C Process for producing foundry iron |
| 10/24/2001 | CN1073630C Coal oxygen fused reduction iron-smelting method and apparatus |
| 10/24/2001 | CN1073629C Electric fornace with insulated electrode and process for producing molten metals |
| 10/24/2001 | CN1073628C Final reduction apparatus and method for fused reduction iron-smelting |
| 10/23/2001 | US6306195 Process for the preparation of high grade synthetic rutile and pig iron |
| 10/18/2001 | US20010030389 Apparatus for producing reduced iron |
| 10/17/2001 | CN1317579A Process for mfg. molten metal iron |
| 10/09/2001 | CA2211942C Method for injecting fine iron ore in smelting reducing process |
| 10/09/2001 | CA2211906C 2-stage fluidized bed furnace for pre-reducing fine iron ore and method for pre-reducing fine iron ore using the furnace |
| 10/04/2001 | US20010025549 Charging iron oxide and carbon material into rotary hearth furnace; reducing into solid iron; carburizing; melting metal iron; separating slag; discharging molten iron |
| 10/04/2001 | EP1138789A1 Method of manufacturing reduced iron metal in molten state by use of rotary hearth furnace |
| 10/04/2001 | EP1137815A1 A process and an apparatus for producing metals and metal alloys |
| 10/04/2001 | EP0904420B1 Metal containing compound reduction and melting process |
| 10/04/2001 | EP0882142B1 Process for producing liquid pig iron or semifinished steel products from iron-containing materials |
| 10/04/2001 | EP0840806B1 Process for producing liquid pig iron or intermediate steel products and installation for implementing it |
| 10/03/2001 | CN1315649A Equipment for jetting granular material into container |
| 10/02/2001 | CA2213123C Device of three-stage fluidized bed furnace type for reducing fine iron ore |
| 09/26/2001 | CN1314955A Process and apparatus for producing metals and metal alloys |
| 09/26/2001 | CN1314954A Direct smelting process |
| 09/12/2001 | CN1312864A A direct smelting process |
| 09/12/2001 | CN1312863A Process for heat-treating residues containing heavy metals and iron oxides |
| 09/12/2001 | CN1312860A Method for producing liquid pig iron |
| 09/12/2001 | CN1070923C Production method of metallic iron |
| 09/11/2001 | US6289034 Process and an apparatus for producing metals and metal alloys |
| 09/11/2001 | US6287363 Reducing gas is separated in scrubber in form of sludges, characterized in that sludges are dehydrated and used as starting materials for production of cement |
| 09/07/2001 | WO2001064960A1 Direct smelting process and apparatus |
| 09/06/2001 | US20010019188 When liquid collected in defined collection area of treatment chamber reaches maximum level it is conveyed to collecting tank, when liquid level in chamber reaches minimum level, liquid from collecting tank is returned to chamber |
| 08/29/2001 | CN1310237A Converter bottom granulated-coal heating technology |
| 08/23/2001 | US20010015516 Apparatus for injecting solid particulate material into a vessel |
| 08/16/2001 | EP0748391B1 Fluidized bed type reduction apparatus for iron ore particles and its use for reducing iron ore particles |
| 08/15/2001 | CN1308138A Stable furnace shutting down process |
| 08/15/2001 | CN1308137A 直接熔炼工艺 Direct smelting process |
| 08/14/2001 | US6273931 Method for controlling a smelting reduction process |
| 08/08/2001 | CN1307645A Direct smelting process |
| 08/08/2001 | CN1069347C Melt reduction equipment and operating method |
| 08/07/2001 | CA2202917C Plant and process for producing raw iron and/or sponge iron |
| 08/02/2001 | DE10103605A1 Vorrichtung zum Einspeisen von festem Partikelmaterial in einen Kessel An apparatus for feeding solid particulate material into a vessel |
| 08/02/2001 | DE10064048A1 Einrichtung zum Verschließen eines Abstichloches eines metallurgischen Gefäßes Means for closing a taphole of a metallurgical vessel |
| 07/31/2001 | US6267799 Method of producing metals and metal alloys |
| 07/25/2001 | CN1305534A Direct smelting vessel and direct smelting process |
| 07/24/2001 | US6264722 Introducing carbon containing material and fine-particulate iron containing material into meltdown gasifying zone; introducing oxygen-containing gas to produce molten pig iron and/or steel prematerial, slag, coke and reducing gas |
| 07/19/2001 | DE19963642A1 Heating recycling gas and/or pyrolysis gas with simultaneous evaluation of waste in recycling gas cupola furnace comprises heating recycling gas using thermal oil or by using heat losses from furnace |
| 07/17/2001 | US6261338 Injection |
| 07/11/2001 | EP1114195A1 A direct smelting process |
| 07/11/2001 | EP1114193A1 Method for heat-treating recyclings containing oil and iron oxide |
| 07/11/2001 | EP1114192A1 A process and an apparatus for producing metals and metal alloys |
| 07/11/2001 | EP1114191A1 A direct smelting process |
| 07/05/2001 | WO2001048251A1 Method for producing pig iron |
| 07/05/2001 | CA2396690A1 Method for producing pig iron |
| 07/04/2001 | EP1112387A1 Direct smelting vessel and direct smelting process |
| 07/04/2001 | CN1068052C Molten reduction apparatus and method for operating same |
| 06/20/2001 | EP1108071A1 Method for producing a metal melt and corresponding multfunction lance |
| 06/20/2001 | CN1299879A Direct-fusing apparatus and method |
| 06/13/2001 | EP1105541A1 Method for producing liquid pig iron |
| 06/13/2001 | CN1067112C Method for veduction and melting of compounds contg. metallic elements |
| 06/13/2001 | CN1067108C Metal reduction and melting process and preheating equipment |
| 06/06/2001 | CN2433260Y Multi-stage fluidized moving bed melting station reducing ironmaking furnace |
| 06/05/2001 | US6241803 Heating iron oxide with carbon to form iron and cooling |
| 06/05/2001 | US6241797 Process for reducing oxidic slags |
| 05/31/2001 | WO2001038588A1 Oxidant suction cupola and method for managing same |
| 05/29/2001 | CA2172898C Apparatus for producing molten pig iron by direct reduction |
| 05/22/2001 | US6235082 Process for producing liquid metal and facilities for carrying out the process |
| 05/16/2001 | EP1098997A1 A direct smelting process |
| 05/16/2001 | EP0865506B1 Process for producing liquid metal and facilities for carrying out the process |
| 05/10/2001 | WO2001032941A1 Fluidized bed breakage prevention system for fluidized bed reduction reactor |
| 05/09/2001 | EP0754245B1 Method of manufacturing pig iron or steel and cement clinker from slags |
| 05/08/2001 | US6228142 In production of molten pig iron utilizing non-coking coal; sensor for measuring distance using a laser, and process computer which obtains changing pressure in a melter gasifier, for maintaining the penetration depth |
| 05/03/2001 | DE19963609C1 Production of pig iron comprises reducing iron ore in a reduction shaft to form sponge iron which has a high degree of metallization |
| 05/02/2001 | CN1065280C Plant and process for producing sponge iron |
| 04/25/2001 | EP0783591B1 Process for producing liquid pig iron or semi-finished steel products and installation for implementing it |
| 04/24/2001 | US6221312 Refractory wall, metallurgical vessel comprising such a refractory wall and method in which such a refractory wall is applied |
| 04/18/2001 | EP1092785A1 Coherent jet lancing system for gas and powder delivery |
| 04/18/2001 | CN1291528A Transmission system of gas and powder |
| 04/17/2001 | CA2052659C Process for the production of pig iron and sponge iron |
| 03/28/2001 | EP1087022A1 A direct smelting process |
| 03/27/2001 | US6206948 Metal reduction and melting process and apparatus |
| 03/21/2001 | CN1288066A Method and equipment for prodn. of reduction iron |
| 03/21/2001 | CN1288065A Pressure control |
| 03/21/2001 | CN1288064A Art and equipment for carbon cell fusion reduction iron prodn. |
| 03/20/2001 | CA2132733C Process for producing pig iron and cement clinker |
| 03/13/2001 | US6200518 Melt-reducing facility and method of operation thereof |
| 03/07/2001 | CN1062912C Apparatus and method for burning and melting fine particles contg. carbon |
| 03/07/2001 | CN1062911C Fluidized bed type reduction apparatus for iron ores and method for reducing iron ores using said apparatus |
| 02/21/2001 | EP1077266A2 Gas blowing plug and manufacturing method therefor |
| 02/15/2001 | WO2001011091A1 A direct smelting process |
| 02/15/2001 | DE19932334C1 Smelting residual materials in a vertical furnace comprises operating the furnace with a hot wind and a combined oxygen injection/enrichment of the wind, and adjusting the heat profile in the furnace |
| 02/14/2001 | EP1076102A2 Pressure control in direct melting process |
| 02/13/2001 | CA2038270C Charge melting and refining method |
| 02/06/2001 | US6183534 Fluidized bed reactor |