Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1978-05-05
1979-07-31
Rutledge, L. Dewayne
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
75 41, C22B 108
Patent
active
RE0300608
ABSTRACT:
A method for preparing moist iron-bearing fume for use in steelmaking furnaces to recover the iron contained in the fume. The fume is thickened, substantially instantaneously dried, impact-fractured and balled. Moisture is added to the fume on the balling device to bind the fume to produce "green" balls which resist degradation during handling and transport. The "green " balls have sufficient strength to resist degradation during handling prior to and during charging to steelmaking furnaces.
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patent: 3836353 (1974-09-01), Holley
patent: 3851827 (1974-12-01), Carignani et al.
Cavaghan, N. J., et al.; "Utilizaton of In-Plant Fines", Journal of the Iron and Steel Institute pp. 538-542. (6/70).
Cahn, D. S., et al.; "Compression Testing of Green and Dry Iron Ore Pellets"; Society of Mining, AIME Transactions vol. 241, pp. 475-481 (12/68).
Bethlehem Steel Corporation
Lewis Michael L.
O'Keefe Joseph J.
Rutledge L. Dewayne
Simitz John S.
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