Process for forming steel product from iron while avoiding the l

Details Process for forming steel product from iron while avoiding the l Process for forming steel product from iron while avoiding the l

1980-05-27

1981-12-22

Lewis, Michael L.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 1R, 75 2, 75 34, 148 165, 148126, B22F 100

Patent

active

043069010

ABSTRACT:
Steel is made from iron ore by comminuting the ore and recovering a particle fraction which has a size less than 50 microns. The iron rich particles then are reduced to form iron or magnetite and are beneficiated by magnetic separation. The magnetite particles are further reduced to form small size iron particles. The iron powders produced by these processes are then processed by powder metallurgical techniques.

REFERENCES:
patent: 2947620 (1960-08-01), Whitehouse et al.
patent: 3122434 (1964-02-01), Reed et al.
patent: 3144329 (1964-08-01), Frolich et al.
patent: 4089681 (1978-05-01), Gueussier
McGannon, H.; The Making, Shaping and Treating of Steel 8th edition, U.S. Steel, pp. 185-187, 381.
Sugasawa, K., et al. "Direktreduktion von Huttenwevksstauben" Stahlu Eisen vol. 96, No. 24 (12/76).

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