Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1982-09-30
1985-06-18
Andrews, Melvyn J.
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
423111, 423130, 423133, C22B 704
Patent
active
045239495
ABSTRACT:
Aluminum dross containing chlorides and combustible volatile material is agglomerated and sized to produce a compact which is then treated in a direct fired rotary kiln in excess of 1800.degree. F. to volatilize the chlorides and burn the combustible volatile material and to produce a refractory material. The flue gases containing the volatilized chlorides are then treated in a condenser where the chlorides are condensed out of the remaining flue gases. The refractory product from the kiln may be passed through a cooler wherein the heat is transferred to the combustion air.
REFERENCES:
patent: 3309196 (1967-03-01), Kaneko et al.
patent: 3442606 (1969-05-01), Hrishikesan
patent: 4010023 (1977-03-01), Bowden
patent: 4050925 (1977-09-01), Johnson
patent: 4113835 (1978-09-01), Bell et al.
patent: 4158701 (1979-06-01), Andersen et al.
Cherry Carl J.
Gower Irving W.
Yang David S.
Andrews Melvyn J.
Berneike Richard H.
Combustion Engineering Inc.
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