Method for recovering metallics and non-metallics from spent cat

Details Method for recovering metallics and non-metallics from spent cat Method for recovering metallics and non-metallics from spent cat

1989-09-13

1991-07-09

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75631, C22B 400

Patent

active

050302744

ABSTRACT:
An electric arc furnace includes a crucible having a metal shell for recovering precious metals from spent material. The shell includes a metal tap hole and a slag door positioned above and opposite the metal tap hole. A removable swinging roof is provided above the crucible together with a plurality of electodes for heating the spent material. Also, a cooling band circumscribes the crucible for cooling the metal shell. Conveyors are provided for distributing the spent material at a plurality of points located between the electrodes and the wall of the crucible. The crucible is tilted to allow the removal of the slag and metal.

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"The New Bottom Pouring Electric Melter `Combined Process Furnace` (CPF)", Mannesmann Demag Metallgewinnung, 12/79.

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