Method of adding coal combustion enhancer to blast furnace

Details Method of adding coal combustion enhancer to blast furnace Method of adding coal combustion enhancer to blast furnace

1998-06-09

2000-06-20

Andrews, Melvyn

Specialized metallurgical processes, compositions for use therei

Compositions

75461, 75471, C21B 504

Patent

active

060773251

ABSTRACT:
In the manufacture of iron in which coke and coal are added to a blast furnace during iron manufacture, an improvement for enhancing the operation of the furnace is disclosed. A metallic element in the form of a compound thereof, the metallic element selected from zirconium, chromium, molybdenum, tungsten, manganese, iron, cobalt, nickel, copper, zinc, aluminum, tin and lead is added to the coal, allowing for a reduction in the amount of coke added to the furnace.

REFERENCES:
patent: 4112849 (1978-09-01), Jones
patent: 4188205 (1980-02-01), Fless
patent: 4331644 (1982-05-01), Ritscher
patent: 4375359 (1983-03-01), Chapman et al.
patent: 4706579 (1987-11-01), Merrell
patent: 4857499 (1989-08-01), Ito et al.

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