Process for the desulphurization treatment of pig iron melts

Details Process for the desulphurization treatment of pig iron melts Process for the desulphurization treatment of pig iron melts

C - Chemistry, Metallurgy

21

C

C21C 7/064 (2006.01) C21C 1/02 (2006.01)

Patent

CA 2076743

- 33 - ABSTRACT The invention relates to a process for the desulphurization treatment of a pig iron melt in a container. The characterizing feature of the invention is that the treatment is performed in three phases: In the initial phase such solids are injected that deoxidize the initial slag and increase its basicity and also produce a circulatory movement of the melt and form a basic deoxidized cover slag. In the middle phase the desulphurizing agent is injected for the main desulphurization and in the final phase such solids are injected that purify the melt and produce a final desulphurization and also so influence the desulphurization slag formed that its content of iron granules is low. Intended for publication: Fig. 1

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