Agent and process for desulfurizing molten metals

Details Agent and process for desulfurizing molten metals Agent and process for desulfurizing molten metals

1990-02-27

1991-01-29

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Compositions

Solid treating composition for liquid metal or charge

C21C 702

Patent

active

049883879

ABSTRACT:
An agent for desulfurizing molten metals, in particular molten iron, comprises a CaC.sub.2 /CaO crystal blend with a maximum of 62% by weight of CaC.sub.2, gas-evolving substances and 0 to 44% by weight of metallic magnesium as the components.
For desulfurizing molten metals, in particular molten iron, using this agent, either the mixture comprising both the CaC.sub.2 /CaO crystal blend and gas-evolving substances, and the magnesium, are fluidized separately and the two fluidized products are combined immediately before they enter the melt, or the CaC.sub.2 /CaO crystal blend, gas-evolving substances and magnesium components are fluidized together and the fluidized product is introduced into the melt.

REFERENCES:
patent: 3771259 (1973-11-01), Portz et al.
patent: 3885956 (1975-05-01), Obst
patent: 4323392 (1982-04-01), Braun et al.
patent: 4358312 (1982-11-01), Braun
patent: 4395282 (1983-07-01), Braun
patent: 4764211 (1988-08-01), Meichsner et al.

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