| Patents for C21B 3 - General features in the manufacture of pig-iron (3,260) |
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| 02/15/2005 | US6855189 Method for removing chrome and/or nickel from liquid slags |
| 02/09/2005 | CN1576377A System and method for recycling slag from stainless steel refiner |
| 02/02/2005 | CN1187279C Blast furnace granulated slag, fine aggregate prepared therefrom and method for producing them |
| 01/26/2005 | EP1337671B1 Method for treatment of ladle slag |
| 01/26/2005 | CN1571760A Cement admixture, cement composition, and cement concrete made therefrom |
| 01/26/2005 | CN1186462C Method for using air or water to reversely flush grain slag filter of blast furnace |
| 01/19/2005 | CN1566010A Deferrization process for steel scoria and application of steel scoria fine powder thereof |
| 01/18/2005 | US6843828 Method for treating slags or slag mixtures on an iron bath |
| 01/12/2005 | CN1563431A Technique for treating fecal steel and fecal iron in high purity in use for metallurgy |
| 01/11/2005 | US6840996 Portland cement comprising mixtures of calcium oxide, silicon oxide and slags, used in engineering and as construction materials having strength; pollution control |
| 01/06/2005 | WO2005001146A2 Method for conditioning slags and dust |
| 01/05/2005 | EP1493830A1 Smelt reduction method for processing slags and dusts from stainless steelmaking |
| 01/05/2005 | CN1560283A Technology for using steel dregs |
| 12/29/2004 | CN1557971A Short stage manufacturing technique of metallurgic slag micropowder |
| 12/29/2004 | CN1557970A Preparation method of steel slag mould sand |
| 12/28/2004 | US6835229 Method and apparatus for clearing a powder accumulation in a powder delivery tube |
| 12/16/2004 | WO2004108624A1 Method for stabilization treatment of steel making slag, stabilized steel making slag, and material and method for environmental preservation of water area using said slag |
| 12/15/2004 | CN2663422Y Metallurgy scoria granulating device capable of reciprocating anhydration |
| 12/14/2004 | US6831939 Dual use of an induction furnace to produce hot metal or pig iron while processing iron and volatile metal containing materials |
| 11/25/2004 | WO2004101828A1 Method for utilizing slag |
| 11/25/2004 | US20040231568 Cement admixture, cement composition, and cement concrete made therefrom |
| 11/25/2004 | CA2525926A1 Process for the utilization of slag |
| 11/24/2004 | CN1177063C Blast furnace slag treating system |
| 11/17/2004 | EP1476405A1 Facility for melting dusts |
| 11/10/2004 | EP1474224A1 Method for producing particle-shaped material |
| 10/20/2004 | CN1171666C Installation for aqueous granulation |
| 10/12/2004 | US6803016 Device for atomizing and granulating liquid slags |
| 10/07/2004 | US20040194940 Heat exchanger system used in steel making |
| 09/30/2004 | DE202004009704U1 Device for granulation of molten slags, especially blast furnace slags, comprising a slag channel, ultrasonic spray nozzles and a closed chamber |
| 09/29/2004 | CN1533443A Method for accelerating separation of granular metallic iron from slag |
| 09/23/2004 | WO2004081237A1 Device for spraying liquefied materials |
| 09/23/2004 | DE202004006841U1 Granulation unit for granulation of liquid slag, especially blast furnace slag, comprises closed granulation chamber with spray head, spray nozzles, chimney and separation chamber |
| 09/23/2004 | DE10311280A1 Stranggießanlage zum Gießen von Strängen aus flüssigem Metall, insbesondere aus flüssigem Stahlwerkstoff mit einem Verteilerrinnen-Wagen Continuous casting plant for casting strands from molten metal, particularly of liquid steel material, with a distributor tray cart |
| 09/15/2004 | EP1457282A1 Continuous casting machine with one thundish car for symmetrically arranged, unilaterally attachable tundishes |
| 09/08/2004 | EP1454995A2 Method and device for fast and dry cooling of metallurgical slags, irrespective of furncace-type or scale |
| 09/04/2004 | CA2420815A1 Method and apparatus for detecting slag |
| 09/02/2004 | US20040168550 Method for accelerating separation of granular metallic iron from slag |
| 08/25/2004 | EP1449927A2 Method and device for fast and dry cooling of slags issued from large-scale blast furnaces and LD-converters |
| 08/05/2004 | WO2004065641A1 An improved smelting process for the production of iron |
| 08/04/2004 | CN1517179A Manufacturing method of high-carbon chromium iron slag grinded by wind power and sand-blast material |
| 07/29/2004 | DE102004001346A1 Vorrichtung und Verfahren zur Zerstäubung von Fluiden, insbesondere metallischen und keramischen Schmelzen Apparatus and method for atomizing fluids, in particular metallic and ceramic melts |
| 07/21/2004 | EP1439237A1 Recycling process for electric arc furnace dust and product obtained therefrom |
| 07/21/2004 | EP1439154A1 Cement admixture, cement composition, and cement concrete made therefrom |
| 07/08/2004 | US20040130077 Production of products from steel slags |
| 06/30/2004 | CN1508268A Slag thermal-sealed vapour maintenance treating method |
| 06/16/2004 | EP1222020B1 Method relating to granulation and apparatus therefor |
| 06/10/2004 | WO2004048617A1 Spray head for a granulating system |
| 06/09/2004 | CN1502704A Spraying head for granulation device |
| 05/26/2004 | EP1422299A1 Spraying head for granulation device |
| 05/26/2004 | CN1151279C Process for immersing liquid iron slag |
| 05/26/2004 | CN1151278C Process for preparing abradant to derust steel slegs of converter |
| 05/19/2004 | CN1498279A Byproduct sludge recycling apparatus in ironmaking system |
| 05/13/2004 | US20040091014 Dual use of an induction furnace to produce hot metal or pig iron while processing iron and volatile metal containing materials |
| 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 |
| 05/05/2004 | CN2614213Y Casting mould cooling device of high lead skim sinter casting machine |
| 05/05/2004 | CN1148458C Steel slag magnetically dressing and re-treating process |
| 04/28/2004 | EP1412540A2 Method for the application of thin-layer metallic slags to an endless circulating conveyor belt |
| 04/28/2004 | CN1492058A Process for treating steel slag by using self grinding technology |
| 04/21/2004 | EP1411135A1 Method for accelerating separation of granular metallic iron from slag |
| 04/07/2004 | EP1194387B1 Device and method for atomizing and comminuting liquid melts |
| 03/31/2004 | CN1485445A Novel process and apparatus of water quenching steam treatment for modifying steel slag |
| 03/24/2004 | EP1400602A2 Method and apparatus for the granulation of liquid melts |
| 03/24/2004 | EP1203102B1 Device for atomising liquid melts |
| 03/24/2004 | CN1143001C Agglomeration method of steel slag |
| 03/10/2004 | CN1141401C Double-cavity steel slag treating drum mechanism |
| 03/03/2004 | EP1394275A1 Method for removing of alkalis in an oxide melt |
| 03/03/2004 | EP1394131A2 Process and apparatus for granulating of molten materials |
| 03/03/2004 | CN1140636C Granulating and vapour-condensing equipment for removing slags |
| 02/25/2004 | EP1390315A1 Device for granulating, pulverizing and comminuting liquid slag |
| 02/25/2004 | CN1139662C Slag processing device |
| 02/11/2004 | EP1198599B1 Method for conditioning slag with the addition of metallurgical residual materials and an installation for the same |
| 02/04/2004 | CN1473203A 精炼剂以及精炼方法 Refining agent and refining methods |
| 01/28/2004 | CN1470652A Blast furnace slag treatment system |
| 01/15/2004 | US20040007162 Cement composition |
| 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 |
| 01/07/2004 | CN1465538A Steel slag modification and steel slag cement |
| 01/02/2004 | EP1374113A1 Primary products production system and method |
| 12/31/2003 | CN2595813Y Punched box |
| 12/31/2003 | CN1132942C Dual-cavity drum apparatus for treating steel slags |
| 12/18/2003 | WO2003068378B1 Method for producing particle-shaped material |
| 12/09/2003 | US6660223 Device for atomizing liquid melts |
| 12/03/2003 | EP1366002A1 Production of products from steel slags |
| 11/05/2003 | CN1454190A 水泥组合物 The cement composition |
| 10/22/2003 | EP1354969A2 Method for conditioning of a liquid blast furnace slag |
| 10/08/2003 | CN1123416C Method and appts. for prodn. of metal lumps |
| 09/24/2003 | CN2575106Y Converter vaporization cooling gas hood movable car |
| 09/24/2003 | CN2575105Y Parting lining for high-temperature heating furnace |
| 09/24/2003 | CN2575104Y Slag water quenching slag pots |
| 09/16/2003 | CA2278099C Process for casting and forming slag products |
| 09/12/2003 | WO2003012150A3 Method for the application of thin-layer metallic slags to an endless circulating conveyor belt |
| 09/03/2003 | CN2570291Y Metallurgical slag treatment apparatus |
| 09/03/2003 | CN1120135C Combined system for processing superfine steel slag powder |
| 08/28/2003 | WO2003070651A1 Facility for melting dusts |
| 08/27/2003 | EP1337671A1 Method and apparatus for treatment of metallurgical slag and the like |
| 08/27/2003 | EP1252347B1 Method for removing chrome and/or nickel from liquid slags |
| 08/27/2003 | EP1248861B1 Method for treating steel plant slag |
| 08/27/2003 | EP0988259B1 Process for making expanded slag |
| 08/27/2003 | CN2568668Y Slag bath mechanical granulating appts. |
| 08/26/2003 | US6610243 Installation for aqueous granulation |
| 08/21/2003 | WO2003068378A1 Method for producing particle-shaped material |