| The bath smelting process has been drawing the particular attention that it could solve the problems of coking coal, environmental pollution, and production flexibility. In bath smelting process coal, partially prereduced ore and oxygen are reacted in an iron bath. The CO and H₂ gases are post combusted above the bath and those reactions supply more of the required energy. The resulting gas is highly oxidized with the post combustion ratio up to 50%. In this work, the rate of reduction of industrial pellets in Co-H₂-CO₂-H₂O gas mixtures simulating those from a bath smelting process were measured. The reduction temperatures were 973, 1073, 1173 and 1273K. Both acid and basic pellets were tested. The reduction was uniform throughout the pellets and the time to reduce to FeO was about 100 minutes at 973K, and to 10 minutes at 1273K. The implications present on the results are discussed. |
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