| Patents for F27B 19 - Combinations of different kinds of furnaces that are not all covered by any single one of main groups (670) |
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| 03/28/2007 | CN2883396Y Novel environment protective roasting furnace for sulfuric acid resolving rare-earth ore |
| 03/14/2007 | CN1928134A Multiple heat resources-electric warming magnesium smelting apparatus and process |
| 02/21/2007 | CN1916198A High performance. Energy saving, environmental protective heat storage type refinery furnace for metal magnesium |
| 02/14/2007 | CN2869728Y Non-ferrous metal smelting, heat-insulating composite furnace |
| 02/14/2007 | CN1911803A Working system of triple oven type alkali melting furnace kiln and its working method |
| 01/10/2007 | CN2856061Y Novel zinc-smelting furnace |
| 01/03/2007 | CN2854474Y Magnesium equipment for sintering forge using residual heat of reduction furnace supplied to shaft kiln |
| 12/27/2006 | CN1884595A Method for extracting zinc etc. nonferrous metal using apparatus of air furnace connecting with condensation kiln |
| 12/20/2006 | CN2849624Y Heater for granular materials |
| 11/29/2006 | EP1546631B1 Processes for redistributing heat flux on process tubes within process heaters, and process heaters including the same |
| 11/29/2006 | CN2841673Y Regenerated aluminium smelter hearth |
| 11/16/2006 | WO2006119861A1 Method for recovering metals from waste and other materials comprising organic components |
| 11/16/2006 | CA2607797A1 Method for recovering metals from waste and other materials comprising organic components |
| 11/01/2006 | CN1282752C Process and apparatus for producing metals and metal alloys |
| 10/26/2006 | WO2006111574A1 Reduction furnace |
| 09/13/2006 | EP1573076A4 An apparatus for manufacturing molten irons by hot compacting fine direct reduced irons and calcined additives and method using the same |
| 08/23/2006 | CN2809550Y Moveable-bed iron bath furnace |
| 07/27/2006 | US20060162499 fluidized beds; compaction |
| 07/05/2006 | CN2793656Y Metal recovering furnace |
| 05/11/2006 | WO2006049218A1 Nanoprecision sintering system |
| 03/30/2006 | WO2006032347A2 Method and device for producing liquid steel |
| 03/08/2006 | EP1030150B1 Fluidized-bed gasification and combustion furnace and method |
| 02/08/2006 | CN1240850C A process and apparatus for producing metals and metal alloys |
| 09/21/2005 | CN1670459A A moving-bed iron liquid furnace |
| 09/14/2005 | EP1573076A1 An apparatus for manufacturing molten irons by hot compacting fine direct reduced irons and calcined additives and method using the same |
| 08/30/2005 | US6936557 Emission of infrared radiation; heating stone mixture in furnace; combustion |
| 08/25/2005 | WO2005078146A1 A zinc refining process with oxygen-enriched and the enclosed smelting furnace thereof |
| 07/27/2005 | CN1646707A Method and installation for producing stainless steel, especially high-quality steel containing chromium or nickel chromium |
| 07/27/2005 | CN1644720A Oxygen-enriched zinc smelting method |
| 06/29/2005 | EP1546631A1 Processes for redistributing heat flux on process tubes within process heaters, and process heaters including the same |
| 06/22/2005 | CN1207400C Direct smelting process and container therefor |
| 03/16/2005 | CN2685348Y Heat processing equipment |
| 01/05/2005 | EP1492893A1 Method and installation for producing stainless steel, especially high-quality steel containing chromium or nickel chromium |
| 12/08/2004 | CN1179149C Method for treating wastes by gasification |
| 07/08/2004 | WO2004057042A1 An apparatus for manufacturing molten irons by hot compacting fine direct reduced irons and calcined additives and method using the same |
| 06/15/2004 | US6749425 Indirect heating furnace |
| 04/29/2004 | WO2004035837A1 Revamping of a basic oxygen furnace into an electric furnace for making steel |
| 02/26/2004 | WO2004017009A1 Processes for redistributing heat flux on process tubes within process heaters, and process heaters including the same |
| 02/26/2004 | CA2495286A1 Processes for redistributing heat flux on process tubes within process heaters, and process heaters including the same |
| 02/18/2004 | CN1138965C Continuous melting apparatus for low-melting point metal and crucible therein |
| 02/04/2004 | EP1114191B1 A direct smelting process |
| 10/16/2003 | WO2003085141A1 Method and device for producing carbon steels or stainless steels by blowing high-phosphorus pig iron in an electric arc furnace or in a converter vessel |
| 10/16/2003 | WO2003085140A1 Method and installation for producing stainless steel, especially high-quality steel containing chromium or nickel chromium |
| 10/07/2003 | US6630099 Facilitates continuous melting while retaining the options of discharging product by continuously, also facilitates high heat transfer rate throughout the reaction zones and avoids localized overheating or undercooling |
| 10/01/2003 | CN1444923A Mineral mountain flour and its manufacturing method |
| 09/30/2003 | US6626663 Processes for redistributing heat flux on process tubes within process heaters, and process heaters including the same |
| 09/18/2003 | US20030176274 Novel mineral composition and method for manufacturing the same |
| 09/12/2003 | WO2002058862A3 Recirculating molten metal supply system and method |
| 07/16/2003 | CN1429921A Continuous refining furnace |
| 07/02/2003 | EP1114191A4 A direct smelting process |
| 07/01/2003 | US6585797 Recirculating molten metal supply system and method |
| 01/21/2003 | US6508853 Using electric arcs furnaces; oxygen blowing vessel |
| 01/07/2003 | US6503289 Process for manufacturing molten metal iron |
| 11/12/2002 | US6478848 Direct smelting process |
| 09/12/2002 | US20020125620 Recirculating molten metal supply system and method |
| 08/28/2002 | CN1366554A Process for manufacturing molten metal iron |
| 08/01/2002 | WO2002058862A2 Recirculating molten metal supply system and method |
| 05/08/2002 | EP0862657B1 Duplex procedure for the production of metals and metal alloys from oxidic metal ores |
| 04/24/2002 | CN2487734Y Energy-saving efficient continuous burning-in kiln for red bricks |
| 04/10/2002 | CN1082548C 用于生产金属熔体的设备及方法 The production of metal melt apparatus and method for |
| 04/03/2002 | EP1193317A1 Installation for the heat treatment of metallic article loads |
| 04/03/2002 | EP1192286A2 Process for manufacturing molten metal iron |
| 01/17/2002 | US20020005083 Process for the production of metal melts |
| 01/10/2002 | WO2001073136A3 Process for manufacturing molten metal iron |
| 01/02/2002 | EP0823487B1 Melt reduction equipment and operating method |
| 11/22/2001 | DE10023702A1 Furnace for firing ceramics has a connection provided between the combustion chamber and a further chamber containing fluorine-absorbing material to directly introduce furnace gases |
| 11/14/2001 | CN2459603Y Integrated copper melting combined furnace |
| 10/04/2001 | WO2001073136A2 Process for manufacturing molten metal iron |
| 10/04/2001 | US20010025550 Compacting cabonaceous reducing agent and iron oxide; reduction in moving hearth furnace; agglomerating slag containing ferrous oxide; melting |
| 10/04/2001 | EP0852692B1 Method of melting oxidic slags and combustion residues, and device for carrying out this method |
| 10/04/2001 | CA2374703A1 Process for manufacturing molten metal iron |
| 09/26/2001 | CN1314954A Direct smelting process |
| 08/14/2001 | US6273932 Continuous metal melting process |
| 08/08/2001 | CN1069347C Melt reduction equipment and operating method |
| 07/24/2001 | US6264883 Plant for the production of metal melts |
| 07/11/2001 | EP1114191A1 A direct smelting process |
| 07/05/2001 | US20010006012 Continuous metal melting apparatus |
| 06/27/2001 | CN1301312A Continuous metal melting process and apparatus |
| 06/13/2001 | CN1298959A Calcining equipment for sulfuride ore difficult to extract |
| 06/12/2001 | US6245123 Safe separation of noxious substances and, in particular, the separation of copper prior to the aftertreatment of the slag |
| 04/04/2001 | EP1088111A1 Continous metal melting process and apparatus |
| 03/13/2001 | US6200518 Melt-reducing facility and method of operation thereof |
| 01/16/2001 | US6174346 Duplex procedure for the production of metals and metal alloys from oxidic metal ores |
| 12/06/2000 | CN1059240C Duplex procedure for prodn. of metals and metal alloys from oxidic metal ores |
| 09/20/2000 | CN2397466Y Vertical rotary kiln for burning cement clinker |
| 08/23/2000 | EP1030150A1 Fluidized bed gasification combustion furnace |
| 03/16/2000 | WO2000014285A1 A direct smelting process |
| 11/25/1999 | WO1999060172A1 Continous metal melting process and apparatus |
| 11/25/1999 | CA2332108A1 Continous melting process and apparatus |
| 11/24/1999 | CN1236398A Installation and method for producing molten metal |
| 10/06/1999 | EP0946761A1 Installation and method for producing molten metal |
| 08/04/1999 | CN2331934Y Living boiler installed on kiln |
| 06/02/1999 | EP0862657A4 Duplex procedure for the production of metals and metal alloys from oxidic metal ores |
| 05/14/1999 | WO1999023431A1 Fluidized bed gasification combustion furnace |
| 03/16/1999 | US5883918 Oxy:fuel melting furnace |
| 01/20/1999 | CN1205743A Duplex procedure for prodn. of metals and metal alloys from oxidic metal ores |
| 01/07/1999 | WO1999000522A1 Installation and method for producing molten metal |
| 01/07/1999 | CA2264665A1 Installation and method for producing molten metal |
| 09/22/1998 | US5810907 Continuous melting apparatus for low-melting point metal, improved crucible for such apparatus, and melting method using such apparatus |
| 09/09/1998 | EP0862657A1 Duplex procedure for the production of metals and metal alloys from oxidic metal ores |