Recovery of Clean Coal for the use of Synthetic Fuels from Anthracite by Froth Flotation
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초록
Coal generally contains numerous types of gangue minerals that produce different physical properties in the product. The aim of this study is to eliminate the impurities in coal by froth flotation to make it more suitable for use in synthetic fuels. In order to ensure optimum flotation conditions, the operational and physicochemical parameters of flotation need to be varied. According to the results, collector dosage and particle sizehad the most significant effect on the outcome. The results also suggest that the optimum conditions for the recovery of good quality clean coal are a particle size below 65 mesh (210 µm), using 1500 g/t kerosene as a collector; 1000 g/t sodium silicate asa depressant; and 100 g/t AF-65 as a frother. At this conditions, it is confirmed that clean coal can be recovered with a combustible recovery of over 85% and ash contentbelow 12% by flotation.
Abstract
Coal generally contains numerous types of gangue minerals that produce different physical properties in the product. The aim of this study is to eliminate the impurities in coal by froth flotation to make it more suitable for use in synthetic fuels. In order to ensure optimum flotation conditions, the operational and physicochemical parameters of flotation need to be varied. According to the results, collector dosage and particle sizehad the most significant effect on the outcome. The results also suggest that the optimum conditions for the recovery of good quality clean coal are a particle size below 65 mesh (210 µm), using 1500 g/t kerosene as a collector; 1000 g/t sodium silicate asa depressant; and 100 g/t AF-65 as a frother. At this conditions, it is confirmed that clean coal can be recovered with a combustible recovery of over 85% and ash contentbelow 12% by flotation.
참고문헌 (26)
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