| Patents for C21B 13 - Making spongy iron or liquid steel, by direct processes (6,991) |
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| 09/06/2006 | CN1827786A Metal ferrochromium preparing method by computer-controlled double microwave ovens |
| 09/06/2006 | CN1273622C Device and method for controllable feeding gas to metallurgical vessel |
| 08/31/2006 | CA2599208A1 Electric arc furnace |
| 08/30/2006 | CN1826416A Process and plant for reducing solids containing iron oxide |
| 08/30/2006 | CN1272378C Solid electrolyte with high ion conductivity and electrochemical system using said solid electrolyte |
| 08/24/2006 | WO2006047846A3 Device for eliminating oversize pellets from balling disks |
| 08/23/2006 | CN1271222C Method for producing ferrum products |
| 08/23/2006 | CN1271221C Method for producing ferrum products using low temperature reduction of iron ore powder |
| 08/17/2006 | US20060182555 Method and device for distributing a lumpy bulk material |
| 08/16/2006 | EP1689892A1 An apparatus for manufacturing a molten iron directly using fine or lump coals and fine iron ores, the method thereof, the integrated steel mill using the same and the method thereof |
| 08/16/2006 | EP1287170B1 Apparatus for injecting solid particulate material into a vessel |
| 08/16/2006 | CN1818082A Iron and steel gas based smelting and reducing process with iron-ore powder pre-reduced |
| 08/16/2006 | CN1818081A Production of sponge iron |
| 08/16/2006 | CN1269975C Byproduct sludge recycling apparatus in iron-making system |
| 08/16/2006 | CN1269974C Combined iron direct-reducing method and system |
| 08/10/2006 | WO2006082658A1 Bulky product and method for producing bulky product |
| 08/10/2006 | US20060178663 Cryoplasty device and method |
| 08/09/2006 | CN1816638A Hot material conveyor |
| 08/03/2006 | US20060169180 Self-repairing, reinforced matrix materials |
| 08/03/2006 | US20060169103 Process for producing particulate iron metal |
| 08/02/2006 | CN1267568C Direct-reduction method and equipment for production of iron, molten, cast iron and steel |
| 07/27/2006 | US20060162500 Heating ilmenite to 700-950 degrees C. in the bed; gas flow from below through a tube into a mixing chamber of the reactor, the tube being partly surrounded by a stationary annular fluidized bed; gas velocities adjusted to particle Froude numbers; titanium oxide; iron; iron oxide (FeO) |
| 07/27/2006 | US20060162499 fluidized beds; compaction |
| 07/27/2006 | US20060162498 Direct production of refined metals and alloys |
| 07/26/2006 | CN1266287C Method and device for treating a fine-particled feedstock especially containing metal |
| 07/20/2006 | WO2006075977A1 Plant for directly reducing iron oxides and for producing an iron melt |
| 07/19/2006 | CN1804059A Direction reduction and electric furnace smelting-separation preparation process of vanadium-titanium magnetite cold bound pellet |
| 07/19/2006 | CN1804049A Tunnel kiln without exterior combustion chamber and production of direct reduced iron by composite tunnel kiln |
| 07/18/2006 | CA2255811C Process for the treatment of particulate matter by fluidisation, and vessel with apparatus to carry out the treatment |
| 07/13/2006 | WO2006072308A1 Method and device for producing metals and/or metal initial products |
| 07/13/2006 | US20060153726 Hot material conveyor |
| 07/13/2006 | CA2591792A1 Process and apparatus for producing metals and/or primary metal products |
| 07/12/2006 | EP1144696B1 Method of producing molten iron in duplex furnaces |
| 07/12/2006 | CN1802443A Direct smelting plant and process |
| 07/11/2006 | CA2316620C Method and apparatus for supplying granular raw material for reduced iron |
| 07/11/2006 | CA2207413C Process for producing molten pig iron or liquid steel pre-products and plant for carrying out the process |
| 07/06/2006 | US20060149694 Multivariate, predictive regulation of a direct reduction process |
| 07/06/2006 | US20060147866 Seal structure of solid feeding screw, and method of manufacturing reduced metal using the seal structure |
| 07/06/2006 | US20060143977 Apparatus and process for the treatment of a material under pyrolytical conditions, and use thereof |
| 07/05/2006 | CN1262676C Facilities for reducing metal oxide, method for operating the facilities and moldings as raw material to be charged to reduction furnace |
| 06/28/2006 | EP1373581B1 Reduction smelting method in a shaft furnace with recovery of volatile secondary metals |
| 06/21/2006 | EP1670959A1 Method and apparatus for reducing metal-oxygen compounds |
| 06/21/2006 | EP1670958A2 Method and apparatus for producing molten iron |
| 06/21/2006 | CN1791686A Method and apparatus for improved use of primary energy sources in integrated steel plants |
| 06/21/2006 | CN1791685A Method for utilizing slag |
| 06/21/2006 | CN1789870A Pelletizing shaft furnace with smooth descent and diversion functions |
| 06/21/2006 | CN1789436A Melting process of weather-resistant steel |
| 06/15/2006 | WO2006061790A1 Method and system for producing metallic iron nuggets |
| 06/15/2006 | WO2006061788A1 Method and system for producing metallic iron nuggets |
| 06/15/2006 | WO2006061787A1 Method and system for producing metallic iron nuggets |
| 06/15/2006 | US20060123952 Process and apparatus for extracting zinc |
| 06/15/2006 | CA2590267A1 Method and system for producing metallic iron nuggets |
| 06/15/2006 | CA2590259A1 Method and system for producing metallic iron nuggets |
| 06/14/2006 | CN1786202A Composite carbon containing pellet |
| 06/13/2006 | US7059818 Method and device for distributing a lumpy bulk material |
| 06/08/2006 | US20060119023 Apparatus for manufacturing molten irons to improve operation of fluidized bed type reduction apparatus and manufacturing method using the same (as amended) |
| 06/08/2006 | US20060119022 Apparatus for manufacturing molten irons to dry and convey iron ores and additives and manufacturing method using the same |
| 06/08/2006 | US20060119020 Supplying solid feed materials for a direct smelting process |
| 06/07/2006 | EP1664354A1 Self-reducing, cold-bonded pellets |
| 06/07/2006 | CN1784499A Apparatus for manufacturing molten irons by injecting fine coals into a melter-gasifier and the method using the same |
| 06/07/2006 | CN1782106A Method and apparatus for producing reduced metal |
| 06/07/2006 | CN1782105A Supplying solid feed materials for a direct smelting process |
| 06/07/2006 | CN1782099A Apparatus for injecting gas into a vessel |
| 06/07/2006 | CN1258606C Device for metal reduction and melting process and method using said device |
| 06/07/2006 | CN1258605C Reducing metal manufacturing equipment and manufacturing method of reducing metal |
| 05/25/2006 | US20060108723 Apparatus for injecting gas into a vessel |
| 05/25/2006 | US20060108722 Apparatus for injecting gas into a vessel |
| 05/24/2006 | EP1658467A1 Electric reducing furnace |
| 05/24/2006 | DE19520651B4 Verfahren zur Verwertung und Entsorgung von Klär- bzw. Wasserwerksschlämmen Process for the recovery and disposal of sewage or Wasserwerksschlämmen |
| 05/24/2006 | CN1775959A Electric furnace to converter steel making production process |
| 05/17/2006 | CN1774515A Method and apparatus for producing reduced iron |
| 05/17/2006 | CN1774514A A method for manufacturing briquettes directly using coal with wide range of size, the method using the same and the apparatus using the same |
| 05/17/2006 | CN1772929A Method and apparatus for producing directly reduced iron with coke oven gas |
| 05/11/2006 | US20060096675 Method for producing metallic iron |
| 05/11/2006 | US20060096420 Method for reducing chromium containing raw material |
| 05/11/2006 | US20060096419 Method for reduction treatment of metal oxide or ironmaking waste and method for concentration and recovery zinc and/or lead |
| 05/11/2006 | CA2586941A1 Device for eliminating oversize pellets from balling disks |
| 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 | CN1771339A direct smelting plant |
| 05/10/2006 | CN1255557C Device for blowing gas into metallurgical furnace |
| 05/09/2006 | CA2260207C Process for producing a reduction gas for reduction of metal ore |
| 05/04/2006 | WO2006046606A1 Process for producing molten iron and apparatus therefor |
| 05/04/2006 | CA2584600A1 Method and apparatus for producing molten iron |
| 05/03/2006 | EP1652941A2 Apparatus for injecting gas into a vessel |
| 05/03/2006 | EP1652940A2 Apparatus for injecting gas into a vessel |
| 05/03/2006 | EP1652939A2 Supplying solid feed materials for a direct smelting process |
| 05/03/2006 | CN1766133A One-step blow on method for smelting electric furnace |
| 05/03/2006 | CN1766132A Method for operating rotary hearth type reducing furnace and rotary hearth type reducing furnace facilities |
| 05/03/2006 | CN1766131A Method for producing direct-reduced iron and pig iron |
| 05/02/2006 | US7037356 Method for operating rotary hearth type reducing furnace and rotary hearth type reducing furnace facilities |
| 05/02/2006 | CA2116749C Process for the direct reduction of iron oxide-containing materials withsolid carbonaceous reducing agents |
| 04/27/2006 | WO2006043770A1 Apparatus for manufacturing compacted irons of reduced materials comprising fine direct reduced irons and apparatus for manufacturing molten irons using the same |
| 04/27/2006 | WO2006042363A1 Apparatus for injecting solid particulate material into a vessel |
| 04/26/2006 | CN1763231A Method of producing metallic iron |
| 04/25/2006 | US7033417 Method and installation for reducing orefines in a multi-stage suspension gas stream using a cyclone separator |
| 04/20/2006 | WO2005116274A3 A direct reduction process |
| 04/19/2006 | CN1761762A Process for producing particulate iron metal |
| 04/19/2006 | CN1760378A Apparatus for injecting gas into a vessel |
| 04/19/2006 | CN1252287C Direct-fusing apparatus and method |
| 04/13/2006 | WO2005031009A3 Method and apparatus for producing molten iron |