Method for the salt-free, non-oxidizing remelting of aluminium

Details Method for the salt-free, non-oxidizing remelting of aluminium Method for the salt-free, non-oxidizing remelting of aluminium

2007-01-09

2007-01-09

Kastler, Scott (Department: 1742)

Metallurgical apparatus

Process

C266S173000

Reexamination Certificate

active

10363913

ABSTRACT:
Process and device for saltless, oxidation-free remelting of aluminum, its alloys and of aluminum scrap with miscellaneous impurities, such as combustible oily substances, adherent combustible or noncombustible materials and those with a higher specific weight in a rotating drum (1) with a combustion chamber (4), two supply valves (5, 6) and one burner nozzle (32), in the conventional manner the fuel being natural gas or heating oil, and the oxygen being supplied with air via the supply valve (6) to the combustion chamber (4), using an electronic control an amount of air being metered such that the amount of oxygen supplied with the air corresponds exactly to the stoichiometric ratio for complete combustion of the fuel supplied by the burner nozzle (32).

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Patent Abstracts of Japan, vol. 1998, No. 5, Apr. 30, 1998.
XP-000680794, New Technologies for Salt Free Recovery, Melting and Recyling of Aluminium and Dross, Foundry Trade Journal, Oct. 1, 1996.

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