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Class Information
Number: 75/503
Name: Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures > Processes > Producing or treating free metal > At 300 degrees c or greater (e.g., pyrometallurgy, etc.) > Iron(fe) > Reduction in presence of solid carbon(c) containing material (e.g., coke, coal, carbides, etc.)
Description: Process wherein an Iron (Fe) compound is reduced to metallic Iron in the presence of a solid containing Carbon. The Carbon may be either in elemental (e.g., coke, coal, etc.) or combined (e.g., carbide, etc.) form.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 8377169 |
Method and apparatus for manufacturing granular metallic iron |
Feb. 19, 2013 |
| 8287621 |
Use of bimodal carbon distribution in compacts for producing metallic iron nodules |
Oct. 16, 2012 |
| 8262766 |
Method for reducing chromium containing raw material |
Sep. 11, 2012 |
| 8177880 |
System and method of producing metallic iron |
May. 15, 2012 |
| 8097065 |
System and method for producing metallic iron |
Jan. 17, 2012 |
| 8088195 |
Method for manufacturing titanium oxide-containing slag |
Jan. 3, 2012 |
| 8025711 |
System and method for producing metallic iron |
Sep. 27, 2011 |
| 7914601 |
Cold start-up method for a direct smelting process |
Mar. 29, 2011 |
| 7846235 |
Method for producing metallic iron |
Dec. 7, 2010 |
| 7806959 |
Metallic iron nuggets |
Oct. 5, 2010 |
| 7695544 |
Method and system for producing metallic iron nuggets |
Apr. 13, 2010 |
| 7662210 |
Apparatus for manufacturing molten irons by injecting fine coals into a melter-gasifier and the method using the same |
Feb. 16, 2010 |
| 7628839 |
Method and system for producing metallic iron nuggets |
Dec. 8, 2009 |
| 7384450 |
Method for producing metallic iron |
Jun. 10, 2008 |
| 7198658 |
Method for producing feed material for molten metal production and method for producing molten metal |
Apr. 3, 2007 |
| 7037356 |
Method for operating rotary hearth type reducing furnace and rotary hearth type reducing furnace facilities |
May. 2, 2006 |
| 6802886 |
Method of producing a metallized briquette |
Oct. 12, 2004 |
| 6797034 |
Method of producing reduced metals and apparatus for reducing metal oxides |
Sep. 28, 2004 |
| 6630010 |
Method of producing metallic iron |
Oct. 7, 2003 |
| 6605130 |
Pellets incorporated with carbonaceous material |
Aug. 12, 2003 |
| 6592648 |
Reduction of iron ore in ore/coal mixtures |
Jul. 15, 2003 |
| 6506231 |
Method and apparatus for making metallic iron |
Jan. 14, 2003 |
| 6423116 |
Method for extracting iron by direct reduction |
Jul. 23, 2002 |
| 6409790 |
Method and apparatus for practicing carbonaceous-based metallurgy |
Jun. 25, 2002 |
| 6395057 |
Method for producing directly reduced iron in a layered furnace |
May. 28, 2002 |
| 6355088 |
Method for direct reduction and upgrading of fine-grained refractory and earthy iron ores and slags |
Mar. 12, 2002 |
| 6284017 |
Method and facility for producing reduced iron |
Sep. 4, 2001 |
| 6277171 |
Method of reducing the iron content of steel slag |
Aug. 21, 2001 |
| 6248152 |
Method of reducing iron oxide on a movable hearth furnace |
Jun. 19, 2001 |
| 6241804 |
Process for producing iron briquettes and/or cold iron sponge |
Jun. 5, 2001 |
| 6214085 |
Method for direct steelmaking |
Apr. 10, 2001 |
| 6129777 |
Method of producing reduced iron agglomerates |
Oct. 10, 2000 |
| 6051048 |
Production of fuel gas |
Apr. 18, 2000 |
| 6048382 |
Method for direct reduction and upgrading of fine-grained refractory and earthy iron ores and slags |
Apr. 11, 2000 |
| 6036744 |
Method and apparatus for making metallic iron |
Mar. 14, 2000 |
| 5997606 |
Production of titanium slag |
Dec. 7, 1999 |
| 5980607 |
Steelmaking method with oxygen from rectification of air |
Nov. 9, 1999 |
| 5922261 |
Process for recovering iron from iron-rich material |
Jul. 13, 1999 |
| 5873924 |
Desulfurizing mix and method for desulfurizing molten iron |
Feb. 23, 1999 |
| 5785737 |
Method for recycling iron bearing sludges in a steelmaking operation |
Jul. 28, 1998 |
| 5755853 |
Process for the treatment of solid residues containing metals, in particular residues from the cleaning of household garbage incineration smoke |
May. 26, 1998 |
| 5702502 |
Method for direct use of chromite ore in the production of stainless steel |
Dec. 30, 1997 |
| 5660805 |
Method for beneficiating titanium-bearing material containing iron |
Aug. 26, 1997 |
| 5637133 |
Process for manufacturing sponge iron with low sulphur content |
Jun. 10, 1997 |
| 5589118 |
Process for recovering iron from iron-containing material |
Dec. 31, 1996 |
| 5486229 |
Raw material for producing ferrite dust for friction elements and method of reducing the same |
Jan. 23, 1996 |
| 5364447 |
Method of recycling hazardous waste |
Nov. 15, 1994 |
| 5350434 |
Process and apparatus for making molten steel |
Sep. 27, 1994 |
| 5324341 |
Method for chemically reducing metals in waste compositions |
Jun. 28, 1994 |
| 4792352 |
Method for manufacturing steel through smelting reduction |
Dec. 20, 1988 |
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