Effect of MgO source on sinter properties

Details Effect of MgO source on sinter properties Effect of MgO source on sinter properties

1985-02-20

1987-04-14

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75256, C22B 116

Patent

active

046575847

ABSTRACT:
A process is provided for sintering iron-bearing particulate materials in which the final sinter contains 3/5.5% MgO, yet has substantially the same strength as a low MgO limestone sinter. At least 20% of the MgO in the final sinter product must come from free MgO-bearing material other than dolomite having a particle size smaller than 3/8 inch, but not more than 20% of it can have a particle size smaller than 1/64 inch. Also, not more than 25% of the MgO in the final product may come from dolomite. The invention includes the relatively higher strength MgO-containing sinter produced.

REFERENCES:
patent: 4326887 (1982-04-01), McAllister et al.
Technical paper entitled, "Effects of Replacement of Limestone by Dolomite and Other MgO-Bearing Materials on Production Rate of Iron Ore Sinter", by S. C. Panigrahy, M. Rigaud, and J. Dilewijns, published in Ironmaking and Steelmaking, 1984, vol. 11, No. 5-pp. 246-252.

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