Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1984-05-17
1985-04-02
Andrews, M. J.
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
75 68R, 266901, 134 2, 134 19, 134 37, C22B 2100
Patent
active
045085641
ABSTRACT:
A method for reclaiming aluminum scrap containing thermal barrier material in a non-polluting manner comprising the steps of comminuting the scrap to relatively short pieces, conveying the comminuted scrap to a storage hopper, feeding the comminuted aluminum scrap product to a fluidized bed furnace, heating the scrap to a predetermined temperature for a sufficient amount of time to reduce the thermal barrier material and any other undesirable material in the scrap to combustible gas and cinder to produce a satisfactory aluminum melt furnace feed product, and then feeding the treated scrap product to an aluminum melt furnace and further processing. The method may be either a batch one or a continuous one.
REFERENCES:
patent: 3650830 (1972-03-01), Mathis
patent: 4010935 (1977-03-01), Stephens
patent: 4264060 (1981-04-01), Twyman
patent: 4394166 (1983-07-01), Kennedy
patent: 4411695 (1983-10-01), Twyman
Chemical Engineering Progress Jul. 1982, pp. 81-83.
Andrews M. J.
Johnson Donald L.
Leonard Paul H.
Sieberth John F.
The William L. Bonnell Company
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