| Patents for C21B 5 - Making pig-iron in the blast furnace (3,135) |
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| 07/16/2003 | CN1430678A Method and device for producing pig iron or liquid steel intermediate from charge materials containing iron ore |
| 07/09/2003 | EP1325160A1 Method and device for producing a static bed |
| 07/09/2003 | EP1325156A2 Method and device for distributing a lumpy bulk material |
| 06/18/2003 | CN1424256A Production of aluminum oxide from iron containing bauxite |
| 05/27/2003 | US6568207 Integrated process and installation for the separation of air fed by compressed air from several compressors |
| 05/21/2003 | EP1093527A4 Coal combustion enhancer and method of using in blast furnace |
| 05/08/2003 | US20030084821 Method for producing pozzolanic binders for the cement industry from steel slags using a reduction metal bath |
| 05/06/2003 | CA2107096C Agricultural chemical distributor |
| 04/30/2003 | CN2547700Y Automatic adjusting apparatus for controlling axial float of rotary drum |
| 04/24/2003 | US20030075085 Device for discharging dust from a dry dust collector of a blast furnace |
| 04/23/2003 | CN1413266A Device and method for controllable feeding gas to metallurgical vessel |
| 04/16/2003 | CN2545164Y Network type rake for drum taking machine |
| 04/15/2003 | CA2251548C Hot oxygen blast furnace injection system |
| 04/09/2003 | EP0818543B1 Method for operating shaft furnace |
| 04/03/2003 | WO2003026862A1 Method of manufacturing waste granulated plastics, and method for thermal decomposition of the plastics |
| 04/01/2003 | US6540798 Blowing and melting or semi-melting film shaped synthetic resins to produce granular shape having a bulk density of at least 0.3 and an angle of repose of up to 40 degrees; forming milled plastics to ensure a sufficient combustion property |
| 03/19/2003 | CN1403594A Intelligent blast furnace smelt controlling system |
| 03/19/2003 | CN1403593A Blast furnace smelt controlling method with intelligent control system |
| 03/06/2003 | US20030041691 Method and apparatus for controlling temperature uniformity of the burden in a direct reduction shaft furnace |
| 03/05/2003 | CN1401010A Method for reprocessing dust or dust mixtures |
| 03/05/2003 | CN1401009A Method for treating slags or slag mixtures on and iron bath |
| 03/04/2003 | WO2002027041A2 Method and device for distributing a lumpy bulk material |
| 02/26/2003 | EP1285096A1 Method and device for producing pig iron or liquid steel pre-products from charge materials containing iron ore |
| 02/25/2003 | US6524356 Combusting a first supply of a liquid/gaseous hydrocarbon, with oxygen in first stage to provide flame gases, passing it into second stage, injecting a second supply of hydrocarbon, reacting with flame gas to form carbon monoxide and hydrogen |
| 02/25/2003 | US6523348 Work recovery from process involving steam generation |
| 02/13/2003 | WO2003012154A1 Iron ore briquetting |
| 02/13/2003 | WO2003012153A1 Iron ore briquetting |
| 02/13/2003 | WO2003012152A1 Iron ore briquetting |
| 02/12/2003 | CN1396959A Method for producing pozzolanic binders for cement industry from steel slags using reduction metal bath |
| 02/06/2003 | US20030024352 Method for producing pig iron |
| 02/05/2003 | CN1100588C Pressure swing adsorption process for extracting carbon monooxide from blast furnace waste gas |
| 01/30/2003 | US20030021991 Pellets and method for producing the same |
| 01/22/2003 | EP1276911A1 A device for discharging dust from a dry dust collector of a blast furnace |
| 01/22/2003 | CN1099546C Cleaning method for pulverized coal injection system equipment using coke breeze |
| 01/16/2003 | WO2003004707A1 Method for decarbonization refining of chromium-containing molten steel |
| 01/09/2003 | WO2003002768A1 Equipment for distribution and feeding of charge and fuel in shaft furnaces of rectangular cross section |
| 01/08/2003 | CN1389573A Coke-saving method in smelting iron in blast furnace |
| 01/02/2003 | US20030000343 Equipment for distribution and feeding of charge and fuel in shaft furnaces of rectangular cross section |
| 11/27/2002 | EP0792938B1 Scrap melting method |
| 11/26/2002 | CA2335866C Blast furnace with narrowed top section and method of using |
| 11/14/2002 | WO2002090726A2 Work recovery from process involving steam generation |
| 11/14/2002 | CA2446057A1 Work recovery from process involving steam generation |
| 11/12/2002 | US6478846 Method and device for injecting reducing agents in a shaft furnace |
| 11/06/2002 | CN1378038A Turbine generating process for one machine to recover waste gas energy from several blast furnaces |
| 11/06/2002 | CN1093882C Pulverized coal injecting apparatus |
| 10/30/2002 | EP1252346A1 Method for reprocessing dust or dust mixtures |
| 10/30/2002 | EP1252343A1 Method for treating slags or slag mixtures on an iron bath |
| 10/30/2002 | EP1252341A1 Method for producing pozzolanic binders for the cement industry from steel slags using a reduction metal bath |
| 10/24/2002 | WO2002027041A3 Method and device for distributing a lumpy bulk material |
| 10/23/2002 | EP0755736B1 Improvements in metallurgical conversion |
| 10/23/2002 | CN1375559A Ironmaking process using no coke |
| 10/15/2002 | US6464928 Gas regulation system for blast furnace |
| 10/01/2002 | US6458181 Method for producing pig iron |
| 10/01/2002 | CA2242916C Continuous high pressure solids pump system |
| 09/26/2002 | WO2002075002A1 Method and apparatus for practicing carbonaceous-based metallurgy |
| 09/26/2002 | CA2440243A1 Method and apparatus for practicing carbonaceous-based metallurgy |
| 09/25/2002 | EP1242636A1 Method and device for feeding a gas to a metallurgical vessel |
| 09/04/2002 | EP1236790A1 Molded lump and production method therefor |
| 08/27/2002 | US6440356 Apparatus for injecting gas into a vessel |
| 08/22/2002 | US20020114672 Method for feeding out and transporting powdery and granular material and apparatus therefore |
| 08/20/2002 | US6436168 Thermal decomposition of waste plastics using blast furnace and coke oven without prior removal of chlorine components; contacting resulting gas with ammonia water; recycling as coke |
| 08/07/2002 | EP0915175B1 Pulverized coal carriability improver |
| 08/07/2002 | CN1362535A Low-titanium cast iron and its production process |
| 07/31/2002 | CN1361291A Blast furnace stopping process |
| 07/31/2002 | CN1361290A Blast furnace opening process |
| 07/11/2002 | WO2002053785A1 Method, device and program for monitoring operating condition of blast furnace |
| 07/03/2002 | CN1356399A Method for charging granular coal to top of blast furnace instead of coke |
| 06/26/2002 | EP1217082A2 Method of blowing synthetic resin into furnace and apparatus therefor |
| 06/25/2002 | US6409790 Processing metal oxides with carbon and heat |
| 06/20/2002 | DE10064316A1 Production of pig iron in a blast furnace comprises blowing the additives together with a gasifying agent containing oxygen and/or carrier gas into tuyeres additionally arranged in the bosh and/or shaft |
| 06/05/2002 | EP1211202A1 Method and device for cutting out and transporting powder and granular material |
| 05/14/2002 | US6387153 Stable idle procedure |
| 05/08/2002 | EP0862657B1 Duplex procedure for the production of metals and metal alloys from oxidic metal ores |
| 05/02/2002 | US20020050097 Method and apparatus for producing reformed gases |
| 05/02/2002 | DE10050332A1 Verfahren und Vorrichtung zur Präparierung von Brennstoffen Method and apparatus for preparation of fuels |
| 05/01/2002 | CN1083897C Ferrite- and calcium -based flux, mixture for its production, and use thereof |
| 05/01/2002 | CN1083887C Method and device for injecting reducing agents in shaft furnace |
| 04/30/2002 | US6379424 Direct smelting apparatus and process |
| 04/18/2002 | WO2002031091A1 Method and device for the preparation of fuels |
| 04/04/2002 | WO2002027043A1 Method and device for producing a static bed |
| 03/21/2002 | US20020033124 Method of processing synthetic resins into a furnace fuel and method for blowing synthetic resins as a fuel into a furnace |
| 03/14/2002 | DE19936935C2 Verfahren und Vorrichtung zur Leistungssteigerung und Brennstoffeinsparung bei der Erzeugung von Roheisen Method and apparatus to improve performance and fuel savings in the production of pig iron |
| 03/13/2002 | CN1080866C Combined installation of a metal production unit and a unit for separation air gas |
| 03/06/2002 | CN1080313C Method for blowing into blast furnace |
| 01/24/2002 | US20020007699 Apparatus and method for optimizing the use of oxygen in the direct reduction of iron |
| 01/23/2002 | CN1078233C Method of coking coal |
| 01/16/2002 | EP1114190A4 Blast furnace with narrowed top section and method of using |
| 01/08/2002 | CA2239441C Solid electrolyte systems for use with furnaces |
| 12/19/2001 | EP0946848B1 Operating method and device for a shaft furnace |
| 12/06/2001 | US20010047623 Pyrolysis of wastes; forming gas mixture; contacting withsteam; forming carbon mponoxide and hydrogen |
| 12/06/2001 | DE19953298C2 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 |
| 12/05/2001 | CN1324999A Method for reburning reducing oxynitride based on coal |
| 11/28/2001 | EP0777751B1 Method and apparatus for electric steelmaking |
| 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 | EP1155731A1 NOx reduction using coal based reburning |
| 11/21/2001 | EP1154825A1 Method for optimising the operation of a tank furnace |
| 11/20/2001 | US6319458 Pulverized coal injecting apparatus |
| 11/19/2001 | CA2348061A1 Nox reduction using coal based reburning |
| 11/14/2001 | CN1074792C Process and plant for supplying blast furnace |
| 11/08/2001 | WO2000038496A3 Method for optimising the operation of a tank furnace |