Converter steelmaking process

Details Converter steelmaking process Converter steelmaking process

1980-04-09

1982-06-15

Rosenberg, P. D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 51, 75 52, 75 59, C21C 532, C21C 534

Patent

active

043349218

ABSTRACT:
An improved converter steelmaking process that achieves a great increase in the refining capability of top-blown oxygen is provided. The process applies to an oxygen top-blowing converter that also permits bottom blowing of gas and it is characterized by supplying oxygen from a top-blowing lance and a bottom-blowing nozzle substantially throughout the refining operation, with 2 vol. % to less than 17 vol. % of a predetermined total oxygen flow rate being supplied from the bottom-blowing nozzle whereas the remaining part of oxygen is blown onto the surface of the hot metal from the top-blowing lance.

REFERENCES:
patent: 3771998 (1973-11-01), Knuppel
patent: 3854932 (1974-12-01), Bishop
patent: 3953199 (1976-04-01), Michaelis
patent: 4089677 (1978-05-01), Spenceley
patent: 4178173 (1979-12-01), Gorges
patent: 4195985 (1980-04-01), Brotzmann
patent: 4198230 (1980-04-01), Brotzmann

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