Iron ore reduction in multiple fluidized beds

Details Iron ore reduction in multiple fluidized beds Iron ore reduction in multiple fluidized beds

1975-06-17

1976-10-12

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 26, 75 34, 75 91, C21B 1300

Patent

active

039855473

ABSTRACT:
Iron ore is reduced in a multiple fluid bed reactor, the beds being vertically superposed in a tower and the ore passing by gravity downwardly from bed to bed. The lowermost and all superposed beds are fluidized by off gases from which carbon dioxide and water have been stripped; while a further portion of the fluidizing and reducing gas is provided by combusting methane with a substoichiometric quantity of oxygen and introducing the combustion products into an intermediate level of the column.

REFERENCES:
patent: 2797989 (1957-07-01), Jensen
patent: 3126276 (1964-03-01), Marshall et al.
patent: 3375099 (1968-03-01), Marshall
patent: 3853538 (1974-12-01), Nemeth

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