Abstract
The mineral phases present in coke contribute to coke degradation in the blast furnace. The mineral phases in coke are developed during coal carbonization process. Four Australian bituminous coals have been selected. Sub-samples from each coal were carbonized in three ovens of different capacity, and the carbonization parameters were also different. The mineral phases in cokes were identified in the low temperature ashed samples using X-ray diffraction technique. Amorphous alumino-silicate was the dominant phase in all cokes but the composition of the crystalline mineral phases varied to a great extent between cokes prepared from the same parent coal but in different ovens.
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