Process for the production of ferromanganese

Details Process for the production of ferromanganese Process for the production of ferromanganese

1984-12-20

1986-03-18

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75123N, 751335, 420434, 420581, C22B 4700

Patent

active

045766380

ABSTRACT:
A process for the production of ferromanganese from iron-containing manganese ores, in which the reduction of the ore, which is mixed with coal and slag-forming constituents, is conducted in a rotary kiln at 1200.degree. to 1350.degree. C. in the presence of a CO-containing atmosphere for 20 to 240 minutes, and in which melting follows in a melting furnace at 1400.degree. to 1600.degree. C. By this process, the greatest part of the gangue of manganese ore can be separated off before melting the reduced ore.

REFERENCES:
patent: 2549994 (1951-04-01), Udy
patent: 3037856 (1962-06-01), Udy
patent: 3984232 (1976-10-01), Bell et al.

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