Metal refining processes

Details Metal refining processes Metal refining processes

C - Chemistry, Metallurgy

21

C

53/90

C21C 7/072 (2006.01) C21C 5/35 (2006.01) C22B 9/05 (2006.01)

Patent

CA 1188518

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.

405535

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