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Class Information
Number: 75/672
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.) > Nonferrous > Aluminum(al) > Treating slag or dross
Description: Process in which a slag or dross is treated to produce Aluminum (Al).










Patents under this class:
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Patent Number Title Of Patent Date Issued
8685138 Tilting rotary furnace system and methods of aluminum recovery Apr. 1, 2014
8641801 Dross cooling system and cooling method Feb. 4, 2014
8206486 Dross cooling system and cooling method Jun. 26, 2012
8119060 Solder recovery device Feb. 21, 2012
7829460 Method of manufracturing increasing reliability of copper-based metallization structures in a microstructure device by using aluminum nitride Nov. 9, 2010
7655067 Method for processing aluminium in a rotary or a reverberating furnace Feb. 2, 2010
6767382 Aluminium processing apparatus and process for separating aluminium from a mixture of aluminium and aluminium dross Jul. 27, 2004
6572675 Method of operation of tilting rotary furnace system for recovery of non-ferrous metals from scrap or dross Jun. 3, 2003
6454832 Aluminium alloy semi-finished product manufacturing process using recycled raw materials Sep. 24, 2002
6296817 Process for recycling waste aluminum dross Oct. 2, 2001
6293990 Aluminum alloy semi-finished product manufacturing process using recycled raw materials Sep. 25, 2001
6217631 Method and apparatus for treating molten aluminum Apr. 17, 2001
6159269 Recovery of metal from dross and apparatus therefore Dec. 12, 2000
5900039 Process for obtaining fluid light metal from a dispersed mixture May. 4, 1999
5788918 Dross press fume extraction system Aug. 4, 1998
5716426 Methods of processing aluminium dross and aluminium dross residue into calcium aluminate Feb. 10, 1998
5669957 Dross compression apparatus and method utilizing ribs on collector and head Sep. 23, 1997
5613996 Process for treatment of reactive fines Mar. 25, 1997
5599379 Apparatus and method for recovering non-ferrous metals from hot dross Feb. 4, 1997
5563903 Aluminum melting with reduced dross formation Oct. 8, 1996
5540752 Method for recovery of non-ferrous metals from scrap and dross Jul. 30, 1996
5527380 Recovery of non-ferrous metals from dross Jun. 18, 1996
5525141 Process for the treatment of light metals Jun. 11, 1996
5500033 Melt heating method Mar. 19, 1996
5470376 Recovery of non-ferrous metals from dross Nov. 28, 1995
5447548 Process for recovery of free aluminum from aluminum dross or aluminum scrap using plasma energy with oxygen second stage treatment Sep. 5, 1995
5439501 Method of processing hot dross of aluminum resulting from an aluminum smelting process and a deoxidant obtained from said method Aug. 8, 1995
5421856 Process to reduce dross in molten aluminum Jun. 6, 1995
5421850 Method and apparatus for recovery of non-ferrous metals from dross Jun. 6, 1995
5407459 Process for the preparation of calcium aluminates from aluminum dross residues Apr. 18, 1995
5405427 Salt flux for addition to molten metal adapted for removing constituents therefrom and methods of using Apr. 11, 1995
5401294 Method to separate metallic phases from other phases containing same and device to carry out the method Mar. 28, 1995
5397104 Dross compression apparatus Mar. 14, 1995
5330618 Process for separating dissolved solids from a liquid using an anti-solvent and multiple effect evaporators Jul. 19, 1994
5308375 Process for recovery of free aluminum from aluminum dross or aluminum scrap using plasma energy with oxygen second stage treatment May. 3, 1994
5290535 Process for recycling saltcake Mar. 1, 1994
5286274 Method for treatment of potlining residue from primary aluminium smelters Feb. 15, 1994
5259867 Method of treating dross materials in metallurgical melting processes Nov. 9, 1993
5242486 Coolant for aluminum dross Sep. 7, 1993
5135565 Recovery of aluminum from dross using the plasma torch Aug. 4, 1992
5032177 Method and apparatus for the removal of slag from metallic melt bath in a melting furnace Jul. 16, 1991
5013356 Process for the processing of slag from aluminium scrap and waste melting, recovery of components thereof and treatment of gasses generated May. 7, 1991
4983216 Aluminum scrap melting Jan. 8, 1991
4927459 Treatment of aluminum reduction cell linings combined with use in aluminum scrap reclamation May. 22, 1990
4772320 Metal recovery from dross Sep. 20, 1988
4769067 Process for production of aluminum by carbothermic production of an alkaline earth metal aluminide such as calcium aluminide and recycling of reactant byproducts Sep. 6, 1988
4769069 Process for production of aluminum by carbothermic production of alkaline earth metal aluminide and stripping of aluminum from alkaline earth metal aluminide with halide stripping agent Sep. 6, 1988
4769068 Process for production of aluminum by carbothermic production of alkaline earth metal aluminide and stripping of aluminum from alkaline earth metal aluminide with sulfurous stripping agent Sep. 6, 1988
4765832 Process for carbothermic production of calcium aluminide using slag containing calcium aluminate Aug. 23, 1988
4681626 Method of refining aluminum Jul. 21, 1987

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