Desulphuration of metals

Details Desulphuration of metals Desulphuration of metals

1978-12-15

1980-06-24

Rosenberg, P. D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 53, 75 57, 75130R, 75257, C21C 702, C22B 910

Patent

active

042093252

ABSTRACT:
Injectable composition for desulphurizing molten ferrous metals, especially iron, comprises alkaline earth metal, preferably magnesium, and sintered mixture of lime and at least one fluxing agent. Magnesium is preferably 8 to 60% of composition and lime preferably is 45 to 95% of the sintered mixture. Fluxing agent is preferably alumina and fluoride. Composition enables rapid and efficient desulphurization and does not give large amounts of slag.

REFERENCES:
patent: 2823989 (1958-02-01), Deyrup
patent: 2906617 (1959-09-01), Wahl
patent: 3853540 (1974-12-01), Schlatter
patent: 3998625 (1976-12-01), Koros
patent: 4097269 (1978-06-01), Holzgruber

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