| Patents for C21C 5 - Manufacture of carbon steel, e.g. plain mild steel, medium carbon steel, or cast-steel (14,381) |
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| 03/24/2004 | CN1143076C Supersonic coherent gas jet for providing gas into liquid |
| 03/23/2004 | US6709630 Metallurgical lance and apparatus |
| 03/23/2004 | CA2205812C Scrap melting process |
| 03/18/2004 | WO2004022219A1 Propulsive nozzle injection method in fluidised bed reactors |
| 03/18/2004 | US20040051218 Cooling element |
| 03/18/2004 | US20040050210 Charging the dusts into a bath of molten metals and liquid oxidic slags, volatile heavy metal compounds such as zinc and/or lead oxides are separated from gas phase and alkalies are introduced into the slags |
| 03/17/2004 | CN1482391A Extensionless coherent jet system with aligned flame envelope ports |
| 03/17/2004 | CN1142296C Modified iron for electric furnace steel-smelting and its manufacturing process |
| 03/17/2004 | CN1142295C Antiseize steel device of oxygen gun for steel-smelting in oxygen top-blown converter |
| 03/11/2004 | WO2004020677A1 Method of manufacturing low phosphorous hot metal |
| 03/10/2004 | CN1480540A Technique for dedusting flue gas of rotating furnace through semi-dry process |
| 03/04/2004 | WO2004018714A1 Methods and device for decarbonising a steel melt |
| 03/04/2004 | WO2004018713A1 Cooling plate for metallurgic furnaces |
| 03/04/2004 | DE10332866A1 Doppelofenanlage für die Erzeugung von Stahlwerkstoffen Double oven plant for the production of steel materials |
| 03/04/2004 | DE10308982B3 Device for equalizing pressures prevailing in a melting chamber and cooling water system in an electroslag remelting plant comprises a chamber of a piston storage unit |
| 03/04/2004 | CA2495552A1 Cooling plate for metallurgical furnaces |
| 03/03/2004 | EP1042516B1 Cold drawn wire and method for the manufacturing of such wire |
| 03/03/2004 | CN1140761C Method for introducing gas into liquid pond |
| 03/03/2004 | CN1140760C Method for jetting air into smelting metal by gun/burner |
| 03/03/2004 | CN1140637C Compound scorifying agent |
| 03/02/2004 | US6699302 High metal or alloy recoveries; producing very clean slags |
| 02/26/2004 | DE10237759A1 Elektrode sowie Verfahren zu deren Anordnung in Elektro-Lichtbogenöfen Electrode and methods of assembly in electric arc furnaces |
| 02/26/2004 | DE10237124A1 Performing reaction, e.g. catalytic cracking, in fluidized particle layer involves suctioning medium to be inserted into particle layer using gaseous propellant medium, mixing with medium and inserting into particle layer |
| 02/25/2004 | EP1391523A1 Twin-furnaces unit for steel production |
| 02/25/2004 | EP1391522A2 Electrode and its disposition in an electric arc furnace |
| 02/25/2004 | EP1391521A1 Cooling plate for metallurgical furnace |
| 02/25/2004 | EP1390549A1 Metal-zirconia composite coating |
| 02/25/2004 | CN1139664C Short flow-process electric furnace steel plant |
| 02/24/2004 | US6696013 Metallurgical furnace with scrap metal preheater and dispenser |
| 02/19/2004 | WO2004015092A1 Method for producing stem cells using morulae or blastocysts |
| 02/19/2004 | DE10236033A1 Furnace, e.g. melting furnace for heating and containing materials subject to chemical reactions, includes container containing heat source and comprising refractory lining having first refractory lining layer, and optical waveguide |
| 02/18/2004 | CN2603810Y Oxygen spray pistol of revolving furnace |
| 02/18/2004 | CN2603809Y Oxygen spray pistol of revolving furnace |
| 02/17/2004 | US6693948 Apparatus for arc-melting cold iron source and method thereof |
| 02/17/2004 | US6693947 Pouring out all molten carbon steel produced to provide empty furnace, adding molten metal to empty furnace before next batch operation |
| 02/17/2004 | CA2296351C Method for controlling a smelting reduction process |
| 02/17/2004 | CA2233516C System and method for minimizing slag carryover during the tapping of a bof converter in the production of steel |
| 02/12/2004 | US20040025636 Assaying method |
| 02/11/2004 | EP1114194B1 A direct smelting process and apparatus |
| 02/11/2004 | EP1090152B1 Method for processing steel slags |
| 02/11/2004 | CN2603091Y Nozzle for quick dephosphorizing oxygen-gun |
| 02/11/2004 | CN1138123C Double chamber steel making apparatus and method of steelmaking using this apparatus |
| 02/10/2004 | US6689189 Particles of silicon, carbon and manganese used as foaming and reducing agents in melts for alloying stainless steels |
| 02/10/2004 | US6689182 Method and device for producing molten iron |
| 02/10/2004 | CA2329954C Measuring the thickness of materials |
| 02/05/2004 | WO2004011866A1 Cooling element |
| 02/05/2004 | US20040020411 Injection into liquid slag of oxygen or a mixture of gases containing gaseous oxygen to mix and oxidise slag; addition to and dissolution in mixed liquid slag of a source of alumina and a source of lime and source of silica and/or iron; cooling |
| 02/04/2004 | EP1387138A1 Seal ring |
| 02/04/2004 | EP1386011A1 Ladle refining of steel |
| 02/04/2004 | EP1114195B1 A direct smelting process |
| 02/04/2004 | EP1114191B1 A direct smelting process |
| 02/03/2004 | US6685876 Method for automatically controlling hydraulic opener |
| 02/03/2004 | US6685761 Method for producing beneficiated titanium oxides |
| 02/03/2004 | CA2235622C Mass flow gravity feed apparatus for charging metal-melting furnaces with dross level compensator and method for charging metal-melting furnaces therewith |
| 01/28/2004 | EP1147238B1 Stainless steels |
| 01/28/2004 | CN1471498A Fire-resistant substance and method for producing a fire-resistant lining |
| 01/28/2004 | CN1470653A Converter steelmaking process |
| 01/28/2004 | CN1136320C Carbonizing technology for smelting steel and special carburant |
| 01/27/2004 | CA2304946C "multiple tuyere air box" for use on copper and nickel base metal converters |
| 01/22/2004 | WO2004008135A2 Method for online measurement of molten phases |
| 01/22/2004 | WO2004007778A1 Continuous steelmaking plant |
| 01/22/2004 | WO2004007777A2 Metallurgical vessel and method of iron making by means of direct reduction |
| 01/22/2004 | WO2004007776A2 Injector-burner for metal melting furnaces |
| 01/22/2004 | WO2004007775A2 Direct melting and refining of metal oxide material |
| 01/22/2004 | WO2004007055A1 Method for operating a production plant and production plant |
| 01/22/2004 | DE10227239A1 Metallurgisches Gefäß, insbesondere Elektrolichtbogenofen als Schnauzenkipper A metallurgical vessel, in particular electric arc furnace as a muzzle tipper |
| 01/22/2004 | CA2491646A1 Method for online measurement of molten phases |
| 01/21/2004 | CN1469933A Method for producing stainless steels, in particular high-grade steels containing chromium and chromiumnickel |
| 01/20/2004 | US6679931 Method for recovering metallic chromium from slag containing chromium oxide |
| 01/15/2004 | DE10328574A1 Verfahren und Vorrichtung zur Ausbildung kohärenter Gasstrahlen Method and apparatus for forming a coherent gas jets |
| 01/14/2004 | EP1380656A1 Direct melting furnace and process therefor |
| 01/14/2004 | CN1134645C Metallurgical furnace unit |
| 01/13/2004 | US6676747 Wherein basicities of liquid slags are adjusted to values 0.1 to 0.5 below basicity value (calcium oxide/silicon oxide) of target slag prior to reduction by adding acidic corrective substances such as quartz sand and/or blast furnace slag |
| 01/08/2004 | DE10227031A1 Verfahren und Produktionsanlage zum Erzeugen von Produkten aus C-Stahl oder aus Rostfrei-Stahl Processes and production plant to produce products in carbon steel or stainless steel |
| 01/08/2004 | DE10149465B4 MgO enthaltende Zusammensetzung und Verfahren zum Einstellen von Schlacken MgO-containing composition and method for adjusting slags |
| 01/08/2004 | DE10148112B4 Probennehmer für Schmelzen Samplers for melting |
| 01/07/2004 | EP1377689A1 Apparatus for injecting gas into a vessel |
| 01/07/2004 | EP1377688A1 Method and apparatus for practicing carbonaceous-based metallurgy |
| 01/07/2004 | EP1055090B1 Charging device for low blast furnaces |
| 01/06/2004 | US6673305 Apparatus for injecting gas into a vessel |
| 01/06/2004 | CA2241574C Composite briquette for electric furnace charge |
| 01/02/2004 | EP1376010A1 Extensionless coherent jet system with aligned flame envelope ports |
| 01/02/2004 | EP1375686A1 Method of producing stainless steel by re-using waste material of a stainless steel producing process |
| 01/02/2004 | EP1375679A2 Shaft furnace for smelting of scrap |
| 01/02/2004 | EP1374113A1 Primary products production system and method |
| 01/02/2004 | EP1373583A1 Method and device for preventing slag from flowing along when tapping a molten metal |
| 01/02/2004 | EP1372888A1 Refractory plug or brick for injecting gas into molten metal |
| 01/01/2004 | US20040000747 Without the need for a lance extension to establish a recirculation zone for the gases ejected from the lance; providing oxygen forsteelmaking operations such as electric arc furnaces |
| 12/31/2003 | CN2595818Y Steelmaking converter controller |
| 12/31/2003 | CN1464911A A gas injection lance |
| 12/30/2003 | US6669896 Purge plug |
| 12/30/2003 | CA2086702C Blowing lance suspension with integrated medium supply |
| 12/26/2003 | CA2433206A1 Extensionless coherent jet system with aligned flame envelope ports |
| 12/25/2003 | US20030233912 Method of producing stainless steel by re-using waste material of stainless steel producing process |
| 12/24/2003 | WO2003106716A1 Method and production plant for producing products on the basis of carbon steel or stainless steel |
| 12/24/2003 | WO2003089676A3 Iterative cycle process for carbon supersaturation of molten metal and solid metals obtained thereby |
| 12/24/2003 | CN1132507C Electrode and cooling element for metallurgical vessel |
| 12/18/2003 | WO2003104508A1 Refining ferroalloys |
| 12/18/2003 | WO2003103877A1 Injection device and process for the injection of a fluid |
| 12/18/2003 | US20030233212 Indirect gas species monitoring using tunable diode lasers |