Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
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
Boehm Georg
Hillenbrand Engelbert
BASF - Aktiengesellschaft
Rosenberg P. D.
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