Process for removing sulfur during melting of pig iron

Details Process for removing sulfur during melting of pig iron Process for removing sulfur during melting of pig iron

1984-04-30

1986-01-28

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 43, 75 55, C22B 110

Patent

active

045669023

ABSTRACT:
For removing sulfur during melting of pig iron in a fluidized coal layer, it is proposed to introduce into the fluidized coal layer lumpy and/or grainy desulfurating agent. The desulfurating agent can additionally be introduced into the slag, noting that the desulfurating agent is preferably charged above or laterally of the fluidized coal layer within a range of grain sizes of 0.5 to 5 mm for the fluidized coal layer and within a range of grain sizes of 5 to 50 mm for the slag layer. The proportion of lumpy desulfurating agent selected should preferably be smaller than 50% by weight of the total amount of desulfurating agent.

REFERENCES:
patent: 3948645 (1976-04-01), Elvander et al.
patent: 4045214 (1977-08-01), Wetzel et al.

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