Abstract:The behavior of phosphorus‐bearing minerals is characterized from coking coals to the feed coke and the blast furnace (BF) coke using scanning electron microscope and thermodynamic calculations. In coals, they are represented mostly by apatite (major phase, used for thermodynamic calculations), crandallite, gorceixite, goyazite, monazite and xenotime. Apatite fully transforms to Ca4P2O9 and Ca3P2O8 at coking temperatures. In the samples of BF coke, phosphorus‐bearing phases are 5–30 μm in size. In the case of … Show more
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