Method of smelting aluminum

Details Method of smelting aluminum Method of smelting aluminum

1974-11-11

1977-02-08

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 24, 75 65R, C22B 2100

Patent

active

040070360

ABSTRACT:
Aluminum scrap, dross, and the like is preheated to a temperature of approximately 600.degree. C in a prewarming drum and is then turbulenced in an input funnel leading to a satellite furnace. That turbulencing is effected by feeding the preheated aluminum pieces into a stream of molten aluminum coming from a primary smelting oven and directed tangentially into the input funnel so as thoroughly to turbulence the particles and molten aluminum together. Dross developing in the satellite furnace is compacted and then removed and grouped up for reintroduction to the preheating step so as to extract all of the aluminum therefrom.

REFERENCES:
patent: 1513875 (1924-11-01), Wilke
patent: 2446637 (1948-08-01), Crampton et al.
patent: 3037711 (1962-06-01), Businger
patent: 3770420 (1973-11-01), Spear et al.
patent: 3873305 (1975-03-01), Claxton

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