Effect of Microwave Radiation on Coal Flotation

Date

2009-01-01

Author

Ozbayoglu, G.
Depci, T.
Ataman, N.

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Most low-rank coals are high in moisture and acid functional groups, therefore showing poor floatability. Drying, which removes the water molecules trapped in the pores and adsorbed at the surface of coal, decreases the hydrophilic character and improves the floatability. Microwave heating, whose simplest application is drying, was applied at 0.9 kW power level for 60 sec exposure time in the experiments to decrease the moisture content of coal in order to enhance the hydrophobicity. The flotation tests of microwave-treated coal by using heptanol and octanol lead to a higher flotation yield and ash removal than original coal.

Subject Keywords

Alcohol, Coal flotation, Drying, Microwave radiation

URI

https://hdl.handle.net/11511/66975

Journal

ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS

DOI

https://doi.org/10.1080/15567030701531337

Collections

Department of Mining Engineering, Article

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Citation Formats

G. Ozbayoglu, T. Depci, and N. Ataman, “Effect of Microwave Radiation on Coal Flotation,” ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS, pp. 492–499, 2009, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/66975.