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Class Information
Number: 75/962
Name: Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures > Treating or using mill scale
Description: Art collection drawn to patents which treat mill scale to obtain metal, or which use mill scale in metallurgical processes other than in the open hearth manufacture of steel.

Patents under this class:

Patent Number Title Of Patent Date Issued
8529658 Method of manufacturing Fe and Ni containing material, ferronickel mass using the Fe and Ni containing material and method for manufacturing the ferronickel mass Sep. 10, 2013
8444746 Briquetting of mill scale May. 21, 2013
7951221 Process for the treatment of contaminated metal residues and apparatus for implementing it May. 31, 2011
7931732 Method and apparatus for carrying out a metallurgical process Apr. 26, 2011
7674315 Method and apparatus for carrying out a metallurgical process Mar. 9, 2010
7014678 Use of oil-charged mill-scale in shaft furnaces and converters after chemical binding and pelleting thereof Mar. 21, 2006
6471742 Method for producing an improved charging stock for use in metallurgical processes Oct. 29, 2002
6391088 Method for heat-treating recyclings containing oil and iron oxide May. 21, 2002
6372011 Method for producing an iron melt using iron-containing residual smelting plant materials Apr. 16, 2002
6342089 Direct reduced iron pellets Jan. 29, 2002
6231634 Method for making additives for electric arc furnaces May. 15, 2001
6162280 Process for heat treatment of organically contaminated material Dec. 19, 2000
6077324 Method for producing alloyed steels Jun. 20, 2000
6007601 Lime enhanced pressure filtration of iron and steel making sludge Dec. 28, 1999
5885328 Method of agglomerating oil-containing steel mill waste Mar. 23, 1999
5871561 Method of treating dusts containing oxides Feb. 16, 1999
5833735 Method of making steel Nov. 10, 1998
5695543 Method for metal reduction of steel waste products Dec. 9, 1997
5587002 Process for the preparation of a cooling agent containing iron for a steel-making converter Dec. 24, 1996
5573576 Method of treating steel mill waste Nov. 12, 1996
5558695 Process and unit for continuous metal refinement Sep. 24, 1996
5534155 Method for purification of cooling agents and/or lubricants used in rolling mills Jul. 9, 1996
5498277 Process for production of iron Mar. 12, 1996
5474592 Method of reprocessing metallurgical residues, which contain zinc and lead Dec. 12, 1995
5439505 Treatment of steel mill waste for recycling Aug. 8, 1995
5427607 Process for the recovery of metallic iron from slags and other residues Jun. 27, 1995
5380351 Method for agglomeration of flue gas desulfurization dust Jan. 10, 1995
5125966 Process for de-oiling mill sludge Jun. 30, 1992
5047083 Process for de-oiling mill scale Sep. 10, 1991
4995912 Mill scale de-oiling Feb. 26, 1991
4747872 Process and apparatus for producing high purity iron May. 31, 1988
4585475 Method for recycling oily mill scale Apr. 29, 1986
4326883 Process for deoiling and agglomerating oil-bearing mill scale Apr. 27, 1982
4294609 Process for the reduction of iron oxide Oct. 13, 1981
4213779 Treatment of steel mill waste materials Jul. 22, 1980
4199349 Production of sponge iron Apr. 22, 1980
4190422 Metallic abrasive produced from a steel mill waste material Feb. 26, 1980
4177062 Method for removing oil from mill scale and recovering metallic values therein Dec. 4, 1979
4123257 Method of treating a plating sludge Oct. 31, 1978
4113479 Vacuum smelting process for producing ferrotungsten Sep. 12, 1978
4015979 Bonding of particulate materials Apr. 5, 1977
3944413 Direct reduction of metallic oxides Mar. 16, 1976
3941359 Apparatus for direct reduction of iron oxides Mar. 2, 1976

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