Metal refining processes

Details Metal refining processes Metal refining processes

1982-06-14

1983-10-25

Rosenberg, P. D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 52, 75 59, C21C 532, C21C 534

Patent

active

044116977

ABSTRACT:
The invention provides a process for refining steel comprising the steps of blowing a refining gas at the upper surface of the melt contained in a refining vessel by means of an overhead lance; injecting a stirring or processing gas directly into the vessel below the surface level of the melt therein; and introducing carbon from above onto or through the upper surface of the melt in the refining vessel.

REFERENCES:
patent: 2991173 (1961-07-01), Trentini
patent: 3854932 (1974-12-01), Bishop
patent: 4045213 (1977-08-01), Leroy
patent: 4089677 (1978-05-01), Spenceley
patent: 4178173 (1978-12-01), Gorges
patent: 4195985 (1980-04-01), Brotzmann
patent: 4198230 (1980-04-01), Brotzmann
patent: 4280838 (1981-07-01), Marukawa
patent: 4302244 (1981-11-01), Sieckman
patent: 4304598 (1981-12-01), von Bogdandy
patent: 4329171 (1982-05-01), Robert

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