Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1980-12-03
1983-06-07
Andrews, M. J.
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
75 63, 75 68R, 210774, 266227, C22B 700, C22B 2100
Patent
active
043869564
ABSTRACT:
An improved method for recovery of metal, particularly aluminum, from metal bearing dross utilizes a trough for collection of the dross. A wedge member compresses the dross in the trough. In this manner, metal is decanted from the compressed dross and flows through slots in the bottom or passages in the walls of the trough for collection in a pan, or becomes concentrated at the edges or walls of the volume of dross. The trough and wedge members also serve to cool the dross material thereby diminishing metal loss due to thermite reaction. The compressed dross coalesces and solidifies, is broken and is mechanically separated. The larger dross components from the separation process are substantially metallic and may be recycled through the furnace. The remaining components are charged in a vortex melting furnace for the lowest possible melt loss. This also effects segregation of the remaining metal from the dross by melting the metal and allowing the dross to rise to the top of the bath. The improved method of the present invention provides for recovery of about 95% of aluminum metal from a dross which contains about 70% aluminum as compared with a recovery rate of about 50% aluminum metal utilizing a generally known prior art technique.
REFERENCES:
patent: 563769 (1896-07-01), Howard
patent: 2278135 (1942-03-01), Osborn
patent: 3198505 (1965-08-01), Amdur et al.
patent: 3517918 (1970-06-01), Cenkner
patent: 3999980 (1976-12-01), Montagna
patent: 4003559 (1977-01-01), Kuwano et al.
patent: 4057232 (1977-11-01), Ross et al.
Culler Lawrence R.
Heifner Ralph D.
Roth David J.
Andrews M. J.
The Anaconda Company
LandOfFree
Metal recovery process from aluminum dross does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Metal recovery process from aluminum dross, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Metal recovery process from aluminum dross will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2341925