| Patents for C21B 5 - Making pig-iron in the blast furnace (3,135) |
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| 12/14/2004 | US6830606 Method for decarbonization refining of chromium-containing molten steel |
| 12/09/2004 | WO2004106558A1 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 |
| 12/09/2004 | DE10321615A1 Production of zinc-deficient pellets made from substances containing iron and zinc for blast furnace process comprises moistening, mixing with magnesium chloride, pelleting and heating |
| 12/08/2004 | CN1553964A Method and apparatus for practicing carbonaceous-based metallurgy |
| 11/25/2004 | WO2004101829A2 Method and apparatus for improved use of primary energy sources in integrated steel plants |
| 11/18/2004 | US20040226406 utilizing the chemical values of the gases produced by blast furnaces, blast oxygen converters and coke ovens within a steel plant with advantages in energy efficiency and decreased environmental impact as measured by the amount of CO2 released |
| 11/11/2004 | US20040222574 Preheating cold blast air of a blast furnace for tempering the hot blast temperature |
| 11/10/2004 | CN1175177C Turbine generating process for one machine to recover waste gas energy from several blast furnaces |
| 11/09/2004 | CA2302214C Oxygen-fuel boost reformer process and apparatus |
| 11/04/2004 | US20040216560 Method and device for producing pig iron or liquid steel pre-products from charge materials containing iron ore |
| 10/27/2004 | EP1470377A1 Integrated process and installation for the separation of air fed by compressed air from several compressors |
| 10/27/2004 | CN1539998A Control method for stopping power generation systm operated by using excess pressure of blast furnace gas and relevant software |
| 10/20/2004 | CN1537959A Cold aggregated pellet ore for ironmaking in blast furnace and its preparation method |
| 10/20/2004 | CN1537926A Cold press braize ball and its application |
| 10/12/2004 | US6802887 Feeding gas which contains a condensable and/or evaporable component in the gaseous and/or liquid state entrained therein in which possible damage to the gas supply means is considerably reduced or prevented altogether. |
| 10/12/2004 | US6802268 Device for discharging dust from a dry dust collector of a blast furnace |
| 10/05/2004 | US6800113 Equipment for distribution and feeding of charge and fuel in shaft furnaces of rectangular cross section |
| 09/23/2004 | WO2004081238A1 Process for producing reduced matal and agglomerate with carbonaceous material incorporated therein |
| 09/23/2004 | US20040182203 Method for decarbonization refining of chromium-containing molten steel |
| 09/22/2004 | EP1117845B8 Method for the production of a bulk of molten metal, a metallurgical product, and use of such a product |
| 09/15/2004 | CN1528917A Automatic control method of blast-furnace top pressure stability for blast-furnace gas top pressure power generation apparatus |
| 09/02/2004 | WO2004074548A1 A non-corrosive treatment to enhance pressurized and non-pressurized pulverized coal combustion |
| 09/02/2004 | CA2516491A1 A non-corrosive treatment to enhance pressurized and non-pressurized pulverized coal combustion |
| 09/01/2004 | CN1524967A Coal injection device for blast furnace ironmaking |
| 09/01/2004 | CN1164784C Low-titanium cast iron for casting and its production process |
| 08/25/2004 | CN2635190Y Blast furnace gas mud dewatering equipment |
| 08/19/2004 | US20040159184 burning coal in the presence of an amino alcohol corrosion inhibitor, particularly ethanolamine, especially blended with tertiary amino alcohol such as triethanolamine, and boric acid or a water soluble borate |
| 08/19/2004 | DE10304799A1 Coating device for shaft furnace esp. blast furnace, has hopper filtering system joined to rotating pipe extending into inner cavity of furnace |
| 08/18/2004 | EP1425427A4 Iron ore briquetting |
| 08/18/2004 | EP1423545A4 Iron ore briquetting |
| 08/18/2004 | CN1522307A Decarburization refining method of chromium containing molten steel |
| 08/12/2004 | WO2004052510A3 Method for recovering blast-furnace gas and use thereof for making cast iron |
| 08/11/2004 | EP1445334A1 Raw material charging method for bell-less blast furnace |
| 08/04/2004 | CN1518635A Work recovery from process involving steam generation |
| 07/14/2004 | EP1437420A1 Method for producing titanium oxide containing slag |
| 07/08/2004 | DE10358450A1 Production of metals from metal ores with a blast furnace enabling large grain materials such as artificial agglomerates to be processed relatively easily |
| 07/01/2004 | WO2004055832A1 Method and apparatus for controling temperature uniformity of the burden in a direct reduction shaft furnace |
| 06/24/2004 | WO2004052510A2 Method for recovering blast-furnace gas and use thereof for making cast iron |
| 06/23/2004 | CN1506484A Color antirust iron and steel without paint |
| 06/16/2004 | EP1428642A1 Method of manufacturing waste granulated plastics, and method for thermal decomposition of the plastics |
| 06/09/2004 | EP1425427A1 Iron ore briquetting |
| 06/09/2004 | CN2619945Y Iron smelting coal jetting device for blast furnace |
| 06/02/2004 | EP1423545A1 Iron ore briquetting |
| 06/02/2004 | EP1117845B1 Method for the production of a bulk of molten metal, a metallurgical product, and use of such a product |
| 06/02/2004 | CN1500891A Mini-pelletized sinter produced by sludge containing ferrum and production process thereof and special shaft furnace |
| 05/27/2004 | US20040099094 Metal apparatus for forming pig iron or steels from raw materials containing iron and carbon; fixed beds |
| 05/26/2004 | CN1151280C Techlogy for smelting iorn in blast furnace with pre-reducing coal-base pellets |
| 05/06/2004 | DE10248567A1 Process for the production of a metal from a metal ore comprises blowing a mixture as reduction gas into a shaft furnace to react with the ore containing a metal oxide |
| 04/28/2004 | CN1492058A Process for treating steel slag by using self grinding technology |
| 04/08/2004 | WO2004033730A1 Method for producing titanium oxide containing slag |
| 04/07/2004 | CN1487097A Blast furnace iron-making technique with hydrogen-rich fuel gas, pure oxygen and thus high efficiency and low CO2 exhaust |
| 04/06/2004 | CA2287646C Method for integrating a blast furnace and a direct reduction reactor using cryogenic rectification |
| 04/01/2004 | WO2004027097A1 Raw material charging method for bell-less blast furnace |
| 03/31/2004 | EP1403387A1 METHOD FOR DECARBONIZATION REFINING OF CHROMIUM−CONTAINING MOLTEN STEEL |
| 03/23/2004 | CA2205812C Scrap melting process |
| 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 | CN1483087A Method, device and program for monitoring operating condition of blast furnace |
| 03/03/2004 | CN1479778A Method and device for preparation of fuels |
| 02/25/2004 | CN1139663C Method and apparatus for extracting metals from ores |
| 02/12/2004 | US20040025633 Reducing iron oxide to iron; kneading, forming, curing |
| 02/12/2004 | DE10248568B3 Production of metal from metal ores comprises reacting the ore containing metal oxides with a reduction gas containing carbon obtained from solid carbonaceous substances and plastic |
| 02/10/2004 | US6689189 Particles of silicon, carbon and manganese used as foaming and reducing agents in melts for alloying stainless steels |
| 02/05/2004 | US20040022621 Method and device for distributing a lumpy bulk material |
| 02/04/2004 | CN1473101A Method of manufacturing waste granulated plastics, and method for thermal decomposition of plastics |
| 01/27/2004 | CA2308710C Treatment process for resins or organic compounds, or waste plastics containing them |
| 01/21/2004 | CN1468969A Mixed carbon non-sintered block minerals for blast furnace and producing process thereof |
| 01/14/2004 | CN1467299A Oxygen supplying flow of oxygen-rich coal injection in blast furnace iron making |
| 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 |
| 01/07/2004 | EP1377688A1 Method and apparatus for practicing carbonaceous-based metallurgy |
| 01/07/2004 | CN1465720A Heat storage heneycomb type high temp wind generator |
| 12/24/2003 | WO2003106716A1 Method and production plant for producing products on the basis of carbon steel or stainless steel |
| 12/17/2003 | EP1060272B1 Pulverized coal injecting apparatus |
| 12/17/2003 | CN1462355A Method and device for distributing lumpy bulk material |
| 12/17/2003 | CN1462311A Method and device for producing moving bed |
| 12/09/2003 | US6660052 Method for blowing synthetic resins as a fuel into a furnace |
| 12/04/2003 | US20030221517 Article and method for treating molten metal bath |
| 11/20/2003 | WO2003095682A1 Method to improve iron production rate in a blast furnace. |
| 11/20/2003 | CA2485517A1 Method to improve iron production rate in a blast furnace |
| 11/19/2003 | CN1128230C Technology for smelting iron in blast furnace by two-segment blowing of powdered coal |
| 11/18/2003 | CA2261501C Process and apparatus for producing metal from metal ores |
| 11/05/2003 | EP1285096B1 Method and device for producing pig iron or liquid steel pre-products from charge materials containing iron ore |
| 10/21/2003 | US6635093 Supplying plastic and cellulose particles to pelletizing device containing annular mold with apertures; waste recycling |
| 10/08/2003 | EP1154825B1 Method for optimising the operation of a blast furnace |
| 10/01/2003 | EP0738780B2 Method of operating blast furnace |
| 09/17/2003 | CN1442491A Blast furnace type mine coal lump hot air or oxygen cokeless low nitrogen iron smelting method |
| 08/27/2003 | EP1337609A1 Method and device for the preparation of fuels |
| 08/21/2003 | US20030158613 Apparatus and method for testing micropower short-wave frequency-modulated digital radio |
| 08/20/2003 | EP1252346B1 Method for reprocessing dust or dust mixtures |
| 08/13/2003 | CN1117878C Mixed pellet for iron smelting |
| 08/13/2003 | CN1117604C Solid electrolyte systems for use with furnaces |
| 08/06/2003 | CN1434132A Integral blast furnace combined circulation method |
| 08/05/2003 | US6602317 Controlling the temperature uniformity of the center portion of the iron burden in a direct reduction shaft furnace thereby allowing a higher amount of hydrocarbons to be used throughout the reduction process; direct reduced iron |
| 07/31/2003 | WO2003062473A1 Method for producing low silicon hot-metal |
| 07/31/2003 | US20030140732 Method for treating slags or slag mixtures on an iron bath |
| 07/30/2003 | EP1252343B1 Method for treating slags or slag mixtures on an iron bath |
| 07/30/2003 | CN1433353A Molded lump and production method therefor |
| 07/24/2003 | WO2003060405A1 Integrated process and installation for the separation of air fed by compressed air from several compressors |
| 07/23/2003 | EP1114190B1 Blast furnace with narrowed top section and method of using |
| 07/23/2003 | EP0826130B1 Process for melting of metal materials in a shaft furnace |