Method of reducing ore

Details Method of reducing ore Method of reducing ore

1974-05-17

1976-05-11

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 11, 75 42, 75 91, 219 1065, C22D 700

Patent

active

039559637

ABSTRACT:
Ore (e.g. iron ore) and coke are fed continually into the top of a shaft furnace, and molten metal and slag collect in a hearth from which they are tapped periodically. A reducing gas at 800.degree. to 1200.degree.C is injected into the furnace at the bottom of the shaft, preferably into the lower part of the reserve zone. An inert gas at 1700.degree. to 2500.degree.C is injected into the furnace at the top of the hearth.

REFERENCES:
patent: 975625 (1910-11-01), Martin
patent: 1010490 (1911-12-01), Frick
patent: 1917642 (1933-07-01), Furnas
patent: 2559213 (1951-07-01), Edwin
patent: 2952533 (1960-09-01), Cuscoleca et al.
patent: 3764299 (1973-10-01), Wenzel
patent: 3814404 (1974-06-01), Claflin

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