Process for treating pig iron melts and steel melts or alloys

Details Process for treating pig iron melts and steel melts or alloys Process for treating pig iron melts and steel melts or alloys

1979-05-02

1982-03-23

Rosenberg, P. D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 60, C21C 534, C21C 704

Patent

active

043210880

ABSTRACT:
A process for treating pig iron melts and steel melts or alloys in a converter, crucible or other vessel, wherein the entire refining and treatment process is carried out in a vessel with carbon dioxide, continuously and up to the finishing of the steel. Liquid carbon dioxide under a pressure of from 4.0 to 20.0 bar is used for the treatment. From about 50 to 300 kg of CO.sub.2 /tonne of steel are required for the refining of the pig iron melt.

REFERENCES:
patent: 3046107 (1962-07-01), Nelson
patent: 3598383 (1971-08-01), Moore
patent: 3598573 (1971-08-01), Freissmuth
patent: 3640702 (1972-02-01), Karinthi
patent: 3861888 (1975-01-01), Heise
patent: 3932172 (1976-01-01), Knuppel

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