Method of treating sulfur-containing metallurgical materials

Details Method of treating sulfur-containing metallurgical materials Method of treating sulfur-containing metallurgical materials

1979-09-11

1982-05-11

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 74, 75 92, C22B 1500

Patent

active

043291708

ABSTRACT:
In the processing of sulfur-containing metallurgical intermediates, sulfide ores or ore concentrates at a flame temperature of at least 1500.degree. C. in which sulfur dioxide and a melt are formed, acid sludge from the acid treatment of petroleum and mineral oils is substituted for at least a portion of the fuel. The acid sludge contains at most 85% by weight of inorganic components and is preferably introduced through a lance together with the combustion-sustaining gas and any additional fuel, usually in the form of oil.

REFERENCES:
patent: 1459084 (1923-06-01), Bezanson
patent: 3004846 (1961-10-01), Queneau
patent: 3154411 (1964-10-01), Back et al.
patent: 3796568 (1974-03-01), Szekely et al.
patent: 4148630 (1979-04-01), Arentzen
patent: 4165979 (1979-08-01), Davies et al.

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