| Patents for C21B 11 - Making pig-iron other than in blast furnaces (2,381) |
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| 01/03/1996 | EP0689614A1 Briquette to be used as slag-forming material in smelting furnaces and process for producing it |
| 01/02/1996 | US5480474 Process and apparatus for smelting reduction of ores or pre-reduced metal carriers |
| 01/02/1996 | US5480473 Gases emerging from metal bath are afterburned in space above smelt by injected oxidizing agents; transferring heat |
| 12/19/1995 | US5476532 Method for producing reducible iron-containing material having less clustering during direct reduction and products thereof |
| 12/13/1995 | EP0686204A1 Method and apparatus for producing iron |
| 12/06/1995 | EP0533866B1 Process and reduction and melting furnace for producing liquid metal from fine metal oxide particles |
| 12/05/1995 | US5472478 Reduction of metal oxides and vessel |
| 11/08/1995 | EP0680592A1 Process and device for melting iron metallurgy materials in a coke-fired cupola. |
| 10/18/1995 | CN2210195Y Means for loading into the fineral reduction furnace of melting reduction pig-iron making method |
| 10/10/1995 | CA1337241C Method for smelting reduction of iron ore and apparatus therefor |
| 09/27/1995 | CN1109102A Method and apparatus for directly deoxidation of powder mineral or fine mineral sand |
| 09/13/1995 | EP0670910A1 Process and device for producing pig iron from iron ore or for thermally and/or chemically treating an easily decomposable material |
| 09/13/1995 | CN1108307A Method and apparatus for producing iron |
| 09/08/1995 | WO1995023660A1 Improvements in metallurgical conversion |
| 09/08/1995 | CA2183262A1 Improvements in metallurgical conversion |
| 08/30/1995 | CN1107517A A converter process for the production of iron |
| 08/23/1995 | CN1107181A Method for producing reducible iron-containing material having less clustering during direct reduction and products thereof |
| 08/23/1995 | CN1029566C Process for production of liquid metal from finegrain metal oxide part6icles and reducing and smelting furnace for carrying out process |
| 08/22/1995 | CA1336746C Process for producing chromium containing molten iron |
| 08/22/1995 | CA1336745C Method for producing chromium containing molten iron with low sulphur concentration |
| 07/18/1995 | US5433768 Process for producing liquid pig iron from lump iron ore using plastic and petroleum coke |
| 07/18/1995 | US5433767 Using carbon as a reducing agent for ferric oxide to form ferrous oxide and to iron |
| 07/05/1995 | CN1104837A DC arc furnace |
| 06/28/1995 | EP0659887A1 Melt-reduction process for production pf pig iron in the converter |
| 06/14/1995 | EP0657710A1 Dc arc furnace |
| 06/14/1995 | EP0657550A1 Method and apparatus for producing iron |
| 06/14/1995 | EP0605535A4 Process for production of iron. |
| 06/14/1995 | CA2136692A1 Method and apparatus for producing iron |
| 06/07/1995 | CN1103536A Method for obtaining metal from a blast furnace or cupola furnace |
| 05/31/1995 | EP0655084A1 Improved molten metal decomposition apparatus and process |
| 05/18/1995 | DE4338985A1 Device for smelting ferrous material in hearth-type blast furnaces |
| 05/10/1995 | CN1102440A Fusion reducing iron smelting method and its equipment |
| 04/19/1995 | CN1101786A Process for producing pig iron and cement clinker |
| 04/19/1995 | CN1101675A Continuous reduction of metals and/or metal oxides |
| 04/18/1995 | US5407461 Feeding gases to smelt below bath surface, wetting entire lining surface with smelt |
| 04/05/1995 | CN1101076A Technology for smelting sintered ore or nodular ore by use of cut-scraps smelting furnace |
| 04/04/1995 | CA1335041C Process of dezincifying a material flow when operating a pig-iron production plant |
| 03/28/1995 | US5401295 Smelting reduction method with high productivity |
| 03/15/1995 | EP0643141A1 Method for producing reducible iron-containing material having less clustering during direct reduction and products thereof |
| 03/15/1995 | CN1100149A Method for smelting iron alloy in ore roaster and carbonaceous reductant thereby |
| 03/07/1995 | US5395423 Method of melting metals |
| 03/01/1995 | CN1099422A Iron-containing oxide briquet for cupola and making process thereof |
| 03/01/1995 | CN1099418A Method and device of reduction iron-smelting for cold-coagulated carboniferous briquet |
| 02/23/1995 | DE4328164A1 Process for producing pig iron in a coke-fired shaft furnace |
| 02/22/1995 | EP0639231A1 Method for obtaining metal from a blast furnace or cupola furnace |
| 02/09/1995 | DE4326562A1 Process and apparatus for the direct reduction of fine ores or fine ore concentrates |
| 01/25/1995 | CN1097807A Method for smelting and casting pig iron by electric arc furnace |
| 01/25/1995 | CN1097806A Method and equipment for integrated direct flow type continuous iron-smelting |
| 01/17/1995 | US5382278 Pyrometallurgy, exchange reaction with iron oxide removes chromium to slag phase, recovering nickel and cobalt |
| 01/11/1995 | EP0632841A1 Process for producing pig iron and cement clinker |
| 01/04/1995 | CN1027289C Improvements in or relating to pre-reduced iron oxide |
| 01/03/1995 | US5378260 Iron, oxidation, reduction |
| 12/28/1994 | EP0630976A2 Process for producing molten pig iron from iron oxide pellets |
| 12/27/1994 | US5376161 Steel making process including transporting spong iron briquettes |
| 12/27/1994 | CA2036916C Prereduction furnace of a smelting reduction facility of iron ore |
| 12/27/1994 | CA1333662C Process for melting cold iron material |
| 12/21/1994 | EP0629710A1 Process and installation for reduction of ores or prereduced metal-bearing products in molten state |
| 12/16/1994 | CA2125821A1 Process and apparatus for smelting reduction of ores or pre-reduced metal carriers |
| 11/30/1994 | EP0564493B1 Reduction of metal oxides |
| 11/30/1994 | CN1026797C A process for producing metals and metal alloys in a smelt reduction vessel |
| 11/23/1994 | CN1095420A Efflux reduction smelting method |
| 11/22/1994 | US5366536 Method of melting metals |
| 11/16/1994 | CN1095108A Coal-oxygen-ore-solvent compound jet iron-bathing gas-making and iron-smelting |
| 11/15/1994 | US5364448 Process for the production of liquid metal from fine-grain metal oxide particles and reducing and smelting furnace for carrying out the process |
| 11/02/1994 | CN1026433C Apparatus for production of ferrous and non-ferrous metals |
| 10/27/1994 | WO1994024504A1 Dc arc furnace |
| 10/12/1994 | CN1093412A Process for the direct reduction of iron oxide-containing materials with solid carbonaceous reducing agents |
| 10/12/1994 | CN1093411A Metallurgical processes and apparatus |
| 10/05/1994 | EP0618302A1 Metallurgical processes and appartus |
| 10/05/1994 | EP0617739A1 Method for continuously melting down scrap metal |
| 09/30/1994 | CA2115625A1 Metallurgical processes and apparatus |
| 09/29/1994 | WO1994021831A1 Briquette to be used as slag-forming material in smelting furnaces and process for producing it |
| 09/28/1994 | CN1092815A Melting reducing iron-smelting furnace |
| 09/21/1994 | EP0425620B1 Process and device for smelting metals in cupola furnaces run without coke |
| 09/15/1994 | WO1994020642A1 Method for obtaining metal from a blast furnace or cupola furnace |
| 09/14/1994 | EP0614990A1 Process for the reduction of iron ores with reducing agents containing solid carbon |
| 09/07/1994 | EP0614060A1 Process and equipment for melting iron alloy |
| 09/01/1994 | WO1994019497A1 Method and apparatus for producing iron |
| 09/01/1994 | CA2156631A1 Method and apparatus for producing iron |
| 08/18/1994 | DE4330003C1 Process for producing pig iron in a coke-fired blast furnace |
| 08/04/1994 | WO1994017352A1 Process and device for melting iron metallurgy materials in a coke-fired cupola |
| 08/04/1994 | WO1994017214A1 Process for producing pig iron and cement clinker |
| 08/03/1994 | CN1090331A Process for producing molten pig iron or molten steel preproducts |
| 08/02/1994 | CA1331097C Process for melting metal scrap and apparatus for performing the process |
| 07/20/1994 | CN1025505C Metal refining method |
| 07/13/1994 | EP0605535A1 Process for production of iron. |
| 07/13/1994 | CN1025437C Prereduction furnace of smelting reduction facility of iron ore |
| 07/12/1994 | CA1330623C Method for manufacturing steel through smelting reduction |
| 07/06/1994 | EP0215088B1 Improvements in or relating to ironmaking by means of a smelting shaft furnace |
| 06/09/1994 | WO1994012672A1 Process and device for producing pig iron from iron ore or for thermally and/or chemically treating an easily decomposable material |
| 06/09/1994 | CA2150456A1 Process and device for producing pig iron from iron ore or for thermally and/or chemically treating an easily decomposable material |
| 06/01/1994 | DE4240197A1 Verfahren zur Herstellung von Roheisen aus Eisenoxiden und Vorrichtung zur thermischen und/oder chemischen Behandlung eines leicht zerfallenden Materials oder zur Herstellung von Roheisen mittels dieses Verfahrens A process for producing pig iron from iron oxides and apparatus for the thermal and / or chemical treatment of a readily disintegrating material or for producing pig iron by this method |
| 06/01/1994 | CN1087299A Raw material for producing ferrite dust for friction elements and method of reducing the same |
| 05/11/1994 | EP0596107A1 Fluidized bed preliminary reducing furnace for raw material comprising oxide |
| 05/11/1994 | CN1086546A A method for protecting the refractory lining in the gas space of a metallurgical reaction vessel |
| 05/11/1994 | CN1086545A A method for intensifying the reactions in metallurgical reaction vessels |
| 04/28/1994 | WO1994009163A1 Method for continuously melting down scrap metal |
| 04/27/1994 | EP0594557A1 Process for producing molten pig iron or molten steel pre-products |
| 04/20/1994 | EP0592831A1 A method for protecting refractory lining in the gas space of a metallurgical reaction vessel |
| 04/20/1994 | EP0592830A1 A method for intensifying the reactions in metallurgical reaction vessels |