| Patents for C21B 5 - Making pig-iron in the blast furnace (3,135) |
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| 11/01/2001 | WO2001081636A1 A device for discharging dust from a dry dust collector of a blast furnace |
| 10/31/2001 | EP1051524B1 Gas supply or mixing system for a blast furnace |
| 10/25/2001 | US20010033046 Apparatus for injecting gas into a vessel |
| 10/23/2001 | CA2100465C Blast pipe and tuyere arrangement |
| 10/23/2001 | CA2063279C Method and apparatus for treatment of powdered charcoal in solid fuel plant |
| 10/16/2001 | US6302941 Controlling temperature |
| 10/10/2001 | EP1142978A1 High reactivity and high strength coke for blast furnace and method for producing the same |
| 10/03/2001 | CN1315648A Device for blowing gas into metallurgical furnace |
| 09/19/2001 | EP0953057B1 Process for returning finely dispersed solids discharged with a carrier gas from a reactor vessel |
| 09/19/2001 | CN2448847Y Hydraulic controlled desk for blast furnace waste pressure turbine emergency cutting off valve |
| 09/19/2001 | CN1313407A Process for preparing Cr-contained sintered ore of blast furnace from powdered chromium ore and Fe-contained raw material |
| 09/12/2001 | CN1070924C Apparatus and process for returning finely dispersed solids discharged with carrier gas from reactor vessel |
| 09/05/2001 | CN1311825A Blast furnace with narrowed top section and method of using |
| 08/29/2001 | EP1045928B1 Method for producing pig iron |
| 08/29/2001 | EP1023468B1 Method and device for injecting reducing agents in a shaft furnace |
| 08/28/2001 | US6280498 Blowing through nozzle; blast furnace |
| 08/16/2001 | EP1123982A1 Method and apparatus for electric steelmaking |
| 08/15/2001 | CN1308138A Stable furnace shutting down process |
| 08/09/2001 | DE10042899A1 Kunstharzbrennstoff zur Eisenherstellung und Verfahren zur Eisenherstellung Resin fuel for producing iron and method for producing iron |
| 08/07/2001 | US6270552 Rotary hearth furnace for reducing oxides, and method of operating the furnace |
| 08/02/2001 | WO2001055460A1 Method for reprocessing dust or dust mixtures |
| 08/02/2001 | WO2001055459A1 Method for treating slags or slag mixtures on an iron bath |
| 08/02/2001 | WO2001055457A1 Method for producing pozzolanic binders for the cement industry from steel slags using a reduction metal bath |
| 08/02/2001 | DE10103940A1 Vorrichtung zum Einspeisen von Gas in einen Kessel An apparatus for injecting gas into a vessel |
| 08/02/2001 | CA2398349A1 Method for reprocessing dust or dust mixtures |
| 07/25/2001 | EP1117845A1 Method for the production of a bulk of molten metal, a metallurgical product, and use of such a product |
| 07/11/2001 | EP1114190A1 Blast furnace with narrowed top section and method of using |
| 07/05/2001 | WO2001048254A1 Method for the utilisation of plastic waste in the thermal treatment of metalliferous recyclings |
| 07/05/2001 | WO2001048250A1 Method for utilizing activated carbon powder recovered from exhaust sintering gas treating apparatus |
| 07/04/2001 | CN1301871A Furnace opening method for preheating furnace shaft of blast farnace |
| 06/28/2001 | WO2001046479A1 Method and device for feeding a gas to a metallurgical vessel |
| 06/27/2001 | CN1300858A Technology for smelting iron in blast furnace by two-segment blowing of powdered coal |
| 06/20/2001 | CN1299879A Direct-fusing apparatus and method |
| 05/23/2001 | DE19953298A1 Verfahren und Vorrichtungen zur Leistungssteigerung und Brennstoffeinsparung bei der Erzeugung von Eisen Methods and apparatus to improve performance and fuel saving in the production of iron |
| 05/22/2001 | US6235085 High carbon content briquettes |
| 05/15/2001 | US6231638 Reduction; injection comminuted plastic material to agglomerate |
| 05/15/2001 | US6230634 Method of blowing synthetic resin into a furnace |
| 05/10/2001 | WO2001032940A1 Method and devices used in the production of iron for increasing output and reducing fuel consumption |
| 05/10/2001 | WO2001032383A1 Molded lump and production method therefor |
| 05/03/2001 | DE19952041A1 Process for introducing a carbon carrier into a reaction chamber, e.g. in a shaft kiln or blast furnace, comprises mixing the carrier with one or more gaseous and/or liquid media before introduction into the chamber |
| 04/25/2001 | EP1093527A1 Coal combustion enhancer and method of using in blast furnace |
| 04/24/2001 | US6220790 Process for conveying fine-grained solid |
| 04/11/2001 | CN1064409C Method for injecting synthetic resin into furnace and apparatus therefor |
| 03/28/2001 | CN1288960A Mixed pellet for iron smelting |
| 03/27/2001 | US6206949 NOx reduction using coal based reburning |
| 03/20/2001 | US6203594 Method for reducing iron ore in a blast furnace |
| 03/20/2001 | CA2132733C Process for producing pig iron and cement clinker |
| 03/14/2001 | EP1083212A1 Method of making pelletized fuel |
| 03/13/2001 | CA2205047C Method for coking coal |
| 03/07/2001 | CN1286715A Method of treating resin or organic compound, or waste plastics contg. them |
| 03/07/2001 | CN1062912C Apparatus and method for burning and melting fine particles contg. carbon |
| 02/15/2001 | DE19936935A1 Process for increasing the performance and reducing the amount of fuel used during the production of pig iron in blast furnaces comprises removing gases from the mold plane in the lower part of the furnace, treating and recycling |
| 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 |
| 02/13/2001 | US6187258 Feeding metallic charge materials, alloy elements and energy carriers in upper part of furnace shaft, oxidizing agent in lower part, feeding filler alloy elements, metal chips, sands, carbon, dusts and oxygen at high speed into melting zone |
| 01/25/2001 | DE19800418C2 Verfahren zur Erzeugung von Roheisen A process for the production of pig iron |
| 01/24/2001 | CN1061099C Method for operating shaft furnace |
| 01/18/2001 | WO2001004030A1 Method and device for cutting out and transporting powder and granular material |
| 01/17/2001 | CN2415258Y 钝体式套筒陶瓷燃烧器 Blunt-body sleeve ceramic burner |
| 01/17/2001 | CN1280197A Blowing method for blowing synthetic resin into furnace |
| 01/16/2001 | USRE37014 Combined installation of a metal production unit and a unit for the separation of air gas |
| 01/16/2001 | US6174346 Duplex procedure for the production of metals and metal alloys from oxidic metal ores |
| 01/10/2001 | CN1279724A Method and device for injecting reducing agents in a shaft furnace |
| 01/09/2001 | CA2195922C Briquette as an additive for metallurgic purposes comprising silicon-containing residues, and process for its production |
| 01/02/2001 | CA2186679C The use of nitrogen from an air separation plant in carbon dioxide removal from a feed gas to a further process |
| 12/28/2000 | DE19917128C1 Production of crude iron in a blast furnace comprises injecting oxygen at the injection sites through burners, sucking the required partial streams of the contaminated blast furnace gas using a partial vacuum, and burning the gas |
| 12/20/2000 | EP1060272A1 Pulverized coal injecting apparatus |
| 12/13/2000 | CN1059467C Method of blowing charcoal powder into blast furnace |
| 12/06/2000 | CN1276019A Ferrite-and calcium-based flux, mixture for its production, and use thereof |
| 12/06/2000 | CN1059240C Duplex procedure for prodn. of metals and metal alloys from oxidic metal ores |
| 11/29/2000 | CN1275168A Pulverized coal injecting apparatus |
| 11/15/2000 | EP1051524A1 Gas regulation system for blast furnace |
| 10/25/2000 | EP1045928A1 Method for producing pig iron |
| 10/18/2000 | CN1270232A Technology for smelting iorn in blast furnace with pre-reducing coal-base pellets |
| 10/10/2000 | US6129776 Controlling gas utilization ratio inside the furnace by adjusting the charge height of the charge and the height of the coke bed; efficiently reducing and melting the iron ore at a low fuel ratio |
| 09/26/2000 | US6122932 Combined installation of a furnace and an air distillation apparatus and process for using the same |
| 09/26/2000 | CA2180544C Blast furnace operating method |
| 09/19/2000 | US6119482 Combined plant of a furnace and an air distillation device, and implementation process |
| 09/13/2000 | EP1035392A2 Shaft furnace operating method |
| 09/07/2000 | DE19909742A1 Verfahren zum Betreiben eines Schachtofens A method for operating a shaft furnace |
| 08/23/2000 | EP1029931A1 Method of operating blast furnace |
| 08/23/2000 | EP1029889A1 Method of treating resin or organic compound, or waste plastics containing them |
| 08/15/2000 | CA2174563C Recovery of steel plant revert materials through cementitious agglomeration |
| 08/09/2000 | EP0739989B1 Process for melting metal materials |
| 08/02/2000 | EP1023468A1 Method and device for injecting reducing agents in a shaft furnace |
| 08/02/2000 | CN1055127C Method and device for conveying finely divided solid |
| 08/02/2000 | CN1055126C Iron containing scrap melting method |
| 08/01/2000 | US6096112 High carbon content briquettes |
| 07/26/2000 | CN1261106A Method and apparatus for extracting metals from ores |
| 07/19/2000 | EP1020696A2 Process and device to inject solid particles in a shaft furnace |
| 07/19/2000 | CN1054641C Raw-material and chamotte mixed blast-furnace iron-making method |
| 07/18/2000 | US6090182 Hot oxygen blast furnace injection system |
| 07/18/2000 | US6090181 Blast furnace operating method |
| 07/18/2000 | US6089040 Combined plant of a furnace and an air distillation device and implementation process |
| 07/12/2000 | EP1017619A1 Oxygen-fuel boost reformer process and apparatus |
| 07/11/2000 | US6085672 Apparatus for blowing synthetic resin into furnace |
| 07/06/2000 | WO2000038496A2 Method for optimising the operation of a tank furnace |
| 07/06/2000 | DE19859354A1 Verfahren und Vorrichtung zur Erzeugung von Metall aus Metallerzen Method and apparatus for producing metal from metal ores |
| 07/04/2000 | US6083289 Pulverized coal carriability improver |
| 06/29/2000 | DE19954234A1 Forced convection drying of bulk solids uses a mixed hot and cold gas feed, and is suitable for drying of powdered coal, ores , and granular plastics |
| 06/28/2000 | EP1013778A1 Method and apparatus for producing metal from metal ores |