Process to improve the refining of liquid metals by natural gas

Details Process to improve the refining of liquid metals by natural gas Process to improve the refining of liquid metals by natural gas

1986-11-10

1988-10-25

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 58, 75 5919, 75 5928, C22B 400

Patent

active

047801336

ABSTRACT:
A method for the improvement of the process for the refining of liquid metals by means of the injection of natural gas.
It is upon the lab and semi-industrial plant experience of the inventors of the present invention, that it was found that during the injection of natural gas into liquid metals, there is substantially no cracking of methane under usual conditions of pressure and temperature in the refining processes.
In such conditions, natural gas can be used as inert gas in metallurgical processes with technical and economical advantages over inert gases, introducing it through the bottom of the liquid bath. This practice has in addition, the property of reinforcing the process conditions, oxidizing or reducing, according to the slag in the molten bath.

REFERENCES:
patent: 3330645 (1967-07-01), DeMoustier
patent: 3706549 (1972-12-01), Knuppel
patent: 4382817 (1983-05-01), Vayssiere

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