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Microwave roasting of siderite at 800°C with different holding times and the catalytic combustion effects on anthracite are investigated. The heating rate curves indicate that siderite can be heated in microwave field, and the heating rate increases considerably when FeCO3 almost decomposes and oxidizes to Fe3O4 and Fe2O3. The combustion rate increases by 31.74% with 0.5% roasting products of siderite...
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