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Class Information
Number: 75/485
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) > Moving furnace or hearth (e.g., moving belt, etc.) > Reduction in molten state
Description: Process wherein some material is molten during the reduction (e.g., slag, Iron, etc.) and ingredients for carrying out the reduction are added to the melt.










Patents under this class:

Patent Number Title Of Patent Date Issued
8535411 Production of iron from metallurgical waste Sep. 17, 2013
8372179 Ore reduction process using carbon based materials having a low sulfur content and titanium oxide and iron metallization product therefrom Feb. 12, 2013
8025711 System and method for producing metallic iron Sep. 27, 2011
7780756 Ore reduction process and titanium oxide and iron metallization product Aug. 24, 2010
7641712 Method and system for producing metallic iron nuggets Jan. 5, 2010
7632335 Method and system for producing metallic iron nuggets Dec. 15, 2009
7413592 Linear hearth furnace system and methods regarding same Aug. 19, 2008
6993855 Method for drying compact containing metal oxide, method for reducing metal oxide, and rotary-hearth-type metal reducing furnace Feb. 7, 2006
6685761 Method for producing beneficiated titanium oxides Feb. 3, 2004
6648942 Method of direct iron-making / steel-making via gas or coal-based direct reduction and apparatus Nov. 18, 2003
6592647 Method for producing metallic iron Jul. 15, 2003
6569223 Method of manufacturing molten metal iron May. 27, 2003
6506231 Method and apparatus for making metallic iron Jan. 14, 2003
6270552 Rotary hearth furnace for reducing oxides, and method of operating the furnace Aug. 7, 2001
6210462 Method and apparatus for making metallic iron Apr. 3, 2001
6126718 Method of producing a reduced metal, and traveling hearth furnace for producing same Oct. 3, 2000
5730775 Method for rapid reduction of iron oxide in a rotary hearth furnace Mar. 24, 1998











 
 
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