Influence of Microwave Heating and Thermal Auxiliary on Decomposition of Siderite

World Multidisciplinary Earth Sciences Symposium 2016

Celikdemir, Mehmet^1 ; Sarikaya, Musa^1 ; Depci, Tolga^1 ; Aydogmus, Ramazan^1

Department of Mining Engineering, Inonu University, Malatya, Turkey^1

关键词: Duration time;    Power input;    Roasting temperature;    Weight loss;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/44/5/052002/pdf
DOI  :  10.1088/1755-1315/44/5/052002

来源: IOP

【 摘 要 】

In the present study, microwave radiation was used to decrease power inputs and roasting duration time for thermal decomposition of Deveci, Hekimhan siderite ore. The siderite was not enough to absorb adequate microwave radiation to start the decomposition or roasting reaction. Therefore, sucrose as a thermal auxiliary was added to the raw siderite ore before microwave irradiation. The effect of amount of sucrose (10 to 30% by weight) against the duration of heating and roasting temperature of the thermal decomposition of siderite was investigated in the present study. On the contrary of the literature, the experimental results showed that the siderite was decomposed in 3 minutes with addition of 30 wt% sucrose and transformed to Fe3O4. The temperature, the weight loss and the magnetic susceptibility of the roasted final product were recorded as 1100 °C, 32.14 wt.% and 15410.03∗10-8m3/kg., respectively.