Processes for blast furnace operations

Details Processes for blast furnace operations Processes for blast furnace operations

1976-11-03

1979-03-13

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75257, 75 30, C21B 504

Patent

active

041440536

ABSTRACT:
A process of operating a blast furnace characterized by the steps of employing silica enriched coke as the coke charge, and allowing the silica to react with condensed alkalies in the furnace to form alkali silicates and thereby minimize degradation of the coke during oxidation. A silica enriched coke especially adapted for blast furnace operations containing added silica in a minimum amount of about 1% by weight, and a method of making the same by dispersing and blending the silica in the coal in a minimum amount of about 0.7% by weight before coking.

REFERENCES:
patent: 945331 (1910-01-01), Koppers
patent: 2473987 (1949-06-01), Brandon
patent: 3190745 (1965-06-01), Triska
patent: 4015977 (1977-04-01), Crawford

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