Method of operating in-bath smelting reduction furnace

Details Method of operating in-bath smelting reduction furnace Method of operating in-bath smelting reduction furnace

1990-09-04

1992-01-07

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Process control responsive to sensed condition

75532, 75538, 75552, C21B 535

Patent

active

050787853

ABSTRACT:
A method of operating an in-bath smelting reduction furnace comprises the step of forming a slag zone in an in-bath smelting reduction furnace supplied with oxygen through a top lance and with agitation gas by bottom bubbling through tuyeres below the metal bath surface, and the step of controlling the carbon material supply rate, the oxygen supply rate and the ore supply rate so as to maintain the apparent density of the slag within a prescribed range.

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