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Class Information
Number: 75/471
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) > Blast furnace reduction to produce molten iron(fe) > Defined composition of reductant
Description: Process wherein the composition of the reductant of the Iron (Fe) compound is defined as other than nominal coke.










Patents under this class:

Patent Number Title Of Patent Date Issued
7632330 Production of iron using environmentally-benign renewable or recycled reducing agents Dec. 15, 2009
6918945 Method for producing sponge iron, and reduced iron powder and method for production thereof Jul. 19, 2005
6858061 Method and device for producing pig iron or liquid steel pre-products from charge materials containing iron ore Feb. 22, 2005
6436168 Treatment process for resins or organic compounds, or waste plastics containing them Aug. 20, 2002
6280498 Synthetic resin fuel for making iron and method for making iron Aug. 28, 2001
6264723 Method for manufacturing steel Jul. 24, 2001
6230634 Method of blowing synthetic resin into a furnace May. 15, 2001
6203594 Method for reducing iron ore in a blast furnace Mar. 20, 2001
6090181 Blast furnace operating method Jul. 18, 2000
6077325 Method of adding coal combustion enhancer to blast furnace Jun. 20, 2000
5807420 Process for reduction of iron with solid fuel objects as amended by exam Sep. 15, 1998
5437706 Method for operating a blast furnace Aug. 1, 1995
4844737 Method for operating a blast furnance by blowing pulverized coal Jul. 4, 1989
4822388 Method of operating mineral wool cupolas and using spent electrolytic aluminum pot lining Apr. 18, 1989
4402275 Process for the continuous blowing of fine-particled reducing agents consisting predominantly of mineral coal into a shaft furnace Sep. 6, 1983
4362532 Production of blast furnace coke via novel briquetting system Dec. 7, 1982
4257806 Fired iron-ore pellets having macro pores and process for producing the same Mar. 24, 1981
4187079 Method for producing form coke Feb. 5, 1980
4181502 Method of producing form coke Jan. 1, 1980
4175949 Process for perishing waste rubber materials, especially worn out motor vehicle rubber tires by recovering their components for industrial purposes Nov. 27, 1979
4165221 Formed carbon fuel briquettes, process for forming the same and process for utilizing the same in the manufacture of steel Aug. 21, 1979
4159905 Method of manufacturing green hot briquettes from fine coal for use in shaft furnaces Jul. 3, 1979
4144053 Processes for blast furnace operations Mar. 13, 1979
4132546 Smelting of iron ore with partially dried lignite Jan. 2, 1979
4039319 Method of calcining green coke agglomerates Aug. 2, 1977











 
 
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