Desulfurization agent

Details Desulfurization agent Desulfurization agent

1991-07-26

1992-09-22

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

75773, C21C 7064, C22B 124

Patent

active

051493640

ABSTRACT:
The desulfurization agent for molten iron is made up of 70 to 95% commercial calcium carbide, 5 to 25% silicon dioxide, 0 to 10% of a metal oxide, and 0 to 5% calcium fluoride. The metal oxides are iron oxides and manganese oxides. The desulfurizing agent has been found to reduce the amount of calcium carbide in the resulting slag.

REFERENCES:
patent: 4076522 (1978-02-01), Yoshida
patent: 4260413 (1981-04-01), Freissmuth et al.
patent: 4279643 (1981-07-01), Jackman
patent: 4417924 (1983-11-01), Schwer
patent: 4572737 (1986-02-01), Robinson et al.
patent: 4753676 (1988-06-01), Kodatsky et al.
patent: 4764211 (1988-08-01), Meichsner et al.
patent: 4941914 (1990-07-01), Craig et al.
patent: 4943317 (1990-07-01), Lischka et al.
patent: 4988387 (1991-01-01), Schrodter et al.
W. Henning, "Efficiency in Desulfurization Practices", Elkem Metals Company, Jan. 6, 1986.
E. T. Turkdogan, "Slags and Fluxes for Ferrous Ladle Metallurgy", Ironmaking and Steelmaking, vol. 12, No. 2, 1985, pp. 64-78.
T. Ohya et al., "Desulfurization of Hot Metal with Burnt Lime", Steelmaking Proceedings, vol. 60, 1977, p. 35ff.
H. A. Corver et al., "Hot Metal Desulfurization-N. American Experience with CaD", Iron and Steel Engineer, May 1980, pp. 53-55.
M. J. U. T. van Wijngaarden et al., "The Activity of Iron Oxide in (CaO+CaF.sub.2 +SiO.sub.2 +Fe.sub.x O) Slags", Transactions of the ISS, I&SM, Feb. 1988, pp. 49-56.

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