Process for purifying metals by insufflation and product produce

Details Process for purifying metals by insufflation and product produce Process for purifying metals by insufflation and product produce

1985-03-05

1986-02-04

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 591, 75 5928, C21C 700

Patent

active

045683867

ABSTRACT:
A process for refining pig iron from below the surface of a molten metal bath, and the resulting product, in which an oxidizing gas is injected in the bath and, during the last refining stage, a mixture of oxidizing gas and inert gas is further injected. The inert gas content x of the mixture is made to vary according to a law corresponding to an oxidizing gas dilution curve that is located in an area determined by two envelope curves, to wit, a first maximum dilution curve defined by the straight line portions:

REFERENCES:
patent: 3004847 (1961-10-01), Lambert
patent: 3046107 (1962-07-01), Nelson

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