Method and composition for the desulfurization of molten metals

Details Method and composition for the desulfurization of molten metals Method and composition for the desulfurization of molten metals

1977-05-18

1979-07-03

Rosenberg, P. D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 53, C21C 702

Patent

active

041599063

ABSTRACT:
Molten metals, especially molten pig iron, are desulfurized by contacting them with a composition comprising calcium carbide or calcium cyanamide and an additive agent yielding water or hydrogen at the temperature of the molten metal; preferred as the additive agents are the alkali metal hydrides, polyethylene or polyamide for yielding hydrogen and hydrate of lime and alkaline earth borates for yielding water.

REFERENCES:
patent: 3551139 (1970-12-01), Schokkenbroek
patent: 3716352 (1973-02-01), Ooi
patent: 3809547 (1974-05-01), Lewis
patent: 3827880 (1974-08-01), Greeson
patent: 3884679 (1975-05-01), Mitteldorf
patent: 4049442 (1977-09-01), Freissmuth

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