| Patents for C21B 5 - Making pig-iron in the blast furnace (3,135) |
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| 05/24/2007 | WO2007057588A1 Method for supersonically injecting oxygen into a furnace |
| 05/23/2007 | CN1317116C Molded lump and production method therefor |
| 05/18/2007 | WO2007054308A2 Method for the operation of a shaft furnace, and shaft furnace suitable for said method |
| 05/10/2007 | DE102005053505A1 Verfahren zum Betreiben eines Hochofens und für dieses Verfahren geeigneter Hochofen A method of operating a blast furnace and method suitable for this blast furnace |
| 04/25/2007 | CN1952180A Process for manufacturing low-nickel pig iron by smelting high-magnesium low-nickel chromium mineral |
| 04/24/2007 | US7209871 Prediction of cavity size in the packed bed systems using new correlations and mathematical model |
| 04/11/2007 | CN1309844C Coal briquette for smelting reducing puddling |
| 04/05/2007 | US20070074599 Method for the introduction of inorganic solid bodies into hot liquid melts |
| 04/04/2007 | EP1770175A1 Rotary hearth furnace for reducing oxides |
| 03/28/2007 | EP1765971A2 Method and apparatus for carrying out a metallurgical process |
| 03/28/2007 | CN1936027A Method for producing titanium oxide containing slag |
| 03/28/2007 | CN1307317C Iron ore briquetting |
| 03/21/2007 | CN1306044C Method for producing titanium oxide containing slag |
| 03/07/2007 | CN1924033A Method of producing acidic pellet ore for blast furnace from vanadium-titanium magnetic concentrate |
| 03/07/2007 | CN1924032A Method of producing acidic pellet ore for blast furnace from tin-zinc magnetic concentrate |
| 02/28/2007 | CN1302123C Method and apparatus for practicing carbonaceous-based metallurgy |
| 02/22/2007 | WO2007020929A1 Process of iron manufacturing and mixed composite raw material for use therein |
| 02/21/2007 | CN1916187A Tecnique and euippment for making iron by using blast furnace through pure oxygen and coal gas |
| 02/15/2007 | US20070033864 Non-corrosive treatment to enhance pressurized and non-pressurized pulvarized coal combustion |
| 02/14/2007 | EP1325156B1 Device for distributing a lumpy bulk material |
| 01/31/2007 | CN1906312A Method for the introduction of inorganic solid bodies into hot liquid melts |
| 01/25/2007 | WO2007010674A1 Process for production of coke and process for production of pig iron |
| 01/24/2007 | CN1296495C High wind temperature obtaining method using pure blast furnace gas combustion |
| 12/28/2006 | DE102005027158A1 Verfahren zu Erzeugung von Roheisen im Hochofen unter Zuführung von Reduktionsgas in den Hochofenschacht A method for producing pig iron in a blast furnace while supplying the reducing gas in the blast furnace shaft |
| 12/27/2006 | CN1292080C Method for treating slags on and iron bath |
| 12/20/2006 | EP1733059A2 Method for producing cast iron using blast-furnace gases for enhanced oil recovery |
| 12/14/2006 | US20060278040 Process for producing reduced matal and agglomerate with carbonaceous material incorporated therein |
| 12/12/2006 | CA2318256C Gas regulation system for blast furnace |
| 12/07/2006 | DE10117962B4 Verfahren zur thermischen Behandlung von Rohmaterialien und zur Durchführung des Verfahrens Method for the thermal treatment of raw materials and for performing the method |
| 12/06/2006 | CN1873029A Additive of agglomeration for iron mine |
| 11/29/2006 | CN1871364A Direct smelting plant and process |
| 11/29/2006 | CN1871363A Use of TiO2 residues from a sulfate method |
| 11/22/2006 | CN1865459A Novel binding agent for normal temperature pelletized and cured iron-containing mud cold-cured pellet |
| 11/15/2006 | EP1721016A2 Method for renovating a combined blast furnace and air/gas separation unit system |
| 11/08/2006 | CN1283906C Work recovery from process involving steam generation |
| 11/02/2006 | DE102005018712A1 Production of crude iron in blast furnace comprises production of reducing gas from commercial gas containing high quality methane or other hydrocarbon as well as hydrogen and carbon monoxide used in crude iron production |
| 10/26/2006 | US20060236894 Use of tio2 residues from a sulfate method |
| 10/26/2006 | DE112004001991T5 Direktschmelzanlage und -verfahren Direct smelting plant and procedures |
| 10/26/2006 | DE102005017434A1 Temperature control assembly for blast furnace has gasifier part-discharge to heat exchanger |
| 10/25/2006 | CN1850995A Blast furnace section ore-coke alternating multi-sector step distributing method, and its furnace top device |
| 10/18/2006 | CN1847440A Ni-Cr-Fe alloy and its production process |
| 09/27/2006 | EP1704369A1 Cellular wheel sluice |
| 09/27/2006 | CN1276981C Furnace protecting acid pellet and production technology thereof |
| 09/27/2006 | CN1276980C Iron making process in blast furnace and additives therefor |
| 09/06/2006 | CN1827787A Method for preparing ferrotitanium by molten titanium slag |
| 09/06/2006 | CN1827784A Control method for composing and integrated metallurgical performance of blast furnace high aluminium final slag |
| 09/06/2006 | CN1827783A Chemical additive for pulverized coal injection in blast furnace |
| 09/06/2006 | CN1273622C Device and method for controllable feeding gas to metallurgical vessel |
| 08/17/2006 | US20060182555 Method and device for distributing a lumpy bulk material |
| 08/16/2006 | CN1818080A Gas totally-drying purifying dust-collecting process of blast-furnace |
| 08/16/2006 | CN1269971C Method for optimizing poor coal for blast furnace injection |
| 08/10/2006 | US20060174726 Method for producing magnetostrictive element |
| 08/03/2006 | WO2006080563A1 Method for operating blast furnace |
| 07/26/2006 | EP1682685A1 Method for the introduction of inorganic solid bodies into hot liquid melts |
| 07/26/2006 | CN2799574Y Molten steel flow-controlling mechanism for tundish or ladle |
| 07/20/2006 | DE19729624B4 Verfahren und Schachtofen zur thermischen Behandlung eines Rohmaterials A method and a shaft furnace for the heat treatment of a raw material |
| 06/28/2006 | CN1793390A Inhibiting powdering agent for sintering ore |
| 06/28/2006 | CN1793388A Tech. of blast furnace gas drying bag dust removing |
| 06/28/2006 | CN1261598C Method for reclaiming and reusing iron-making dust in blast furnace |
| 06/28/2006 | CN1261597C Method for increasing breathability of stock column for blast furnace |
| 06/21/2006 | CN1791686A Method and apparatus for improved use of primary energy sources in integrated steel plants |
| 06/21/2006 | CN1789432A Process for smelting schreyerite by blast furnace with cooling block |
| 06/13/2006 | US7059818 Method and device for distributing a lumpy bulk material |
| 05/24/2006 | EP1658385A1 Prediction of cavity size in the packed bed systems using new correlations and mathematical model |
| 05/18/2006 | WO2006050658A1 A smelting process of ferronickel with nickel oxide ore free of crystal water in a blast furnace |
| 05/17/2006 | EP1656461A2 USE OF TIO sb 2 /sb RESIDUES FROM A SULFATE METHOD |
| 05/10/2006 | CN1771340A Method for producing improved coal for use in metallurgy, and method for producing reduced metal and slag containing oxidized nonferrous metal |
| 05/10/2006 | CN1769500A Niccochromite smelting process for producing nickel chromium pig iron |
| 05/10/2006 | CN1769499A Integrated production of subway double-body blast furnace, subway vortex blast furnace and multifunctional rotary membrane electric separation tube |
| 05/10/2006 | CN1255557C Device for blowing gas into metallurgical furnace |
| 05/04/2006 | WO2006045254A1 A smelting process of ferronickel with nickel oxide ore containing of crystal water in a blast furnace |
| 05/03/2006 | CN1766128A Iron and alumnium extraction method from high iron bauxite |
| 04/26/2006 | CN1764741A A non-corrosive treatment to enhance pressurized and non-pressurized pulverized coal combustion |
| 04/19/2006 | CN1252287C Direct-fusing apparatus and method |
| 04/12/2006 | CN1759192A Process for producing reduced matal and agglomerate with carbonaceous material incorporated therein |
| 04/06/2006 | WO2006035976A1 Apparatus for blowing reducing agent into blast furnace, and method for operating blast furnace using said apparatus |
| 04/06/2006 | DE102004046728A1 Verfahren und Einrichtung zum Herstellen von flüssigem Stahl Method and apparatus for producing liquid steel |
| 04/05/2006 | EP1641945A2 Method and apparatus for improved use of primary energy sources in integrated steel plants |
| 03/15/2006 | CN1245489C Method and device for preparation of fuels |
| 03/01/2006 | EP1629125A1 Fuel system to be delivered into tuyeres during the production of pig iron in a blast furnace, and method and installation for the production and delivery of the fuel mixture |
| 02/23/2006 | WO2006017964A1 A drip-type dusting installation having discharge function |
| 02/22/2006 | CN2760480Y Automatic drying device for iron ore, coke |
| 02/22/2006 | CN1736552A Dehumidifying method of dusty gas and use thereof |
| 02/15/2006 | CN1242074C Blast furnace blow in method for elongating blast furnace service life |
| 02/08/2006 | EP1093527B1 Coal combustion enhancer and method of using in blast furnace |
| 02/08/2006 | CN1730628A Coke passivator and its usage |
| 01/25/2006 | CN1724694A Local on-line repairing methd of blast furnace crucible and blast furnace bottom |
| 01/25/2006 | CN1238529C Manufacturing technique for enriching -iron |
| 01/19/2006 | US20060011013 Process and device for direct production of steel from iron-containing materials |
| 01/18/2006 | EP1616968A1 Method for producing improved coal for use in metallurgy, and method for producing reduced metal and slag containing oxidized nonferrous metal |
| 01/17/2006 | US6986800 Method and apparatus for improved use of primary energy sources in integrated steel plants |
| 01/12/2006 | WO2005085727A3 Method for renovating a combined blast furnace and air/gas separation unit system |
| 01/11/2006 | CN2751029Y Gas displacement device of gas tight box |
| 01/11/2006 | CN1236073C Blowing energy recovering method for blast furnace |
| 12/29/2005 | WO2005123896A2 Method and apparatus for carrying out a metallurgical process |
| 12/29/2005 | CA2570299A1 Method and apparatus for carrying out a metallurgical process |
| 12/21/2005 | CN1710112A Direct iron making method for punching particle material using low-grade superfine ironic material |
| 12/15/2005 | US20050274224 techniques for re-introducing iron-rich mill scale back into the basic iron and/or steel process stream whereby valuable economic and environmental benefits may be obtained |
| 12/13/2005 | CA2108816C Process for producing molten pig iron or molten steel pre-products |
| 12/07/2005 | EP1602737A1 Process for producing reduced matal and agglomerate with carbonaceous material incorporated therein |