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2018 Vol.55, Issue 4 Preview Page

Research Paper

Recovery of Clean Coal for the use of Synthetic Fuels from Anthracite by Froth Flotation
Tsogchuluun Davaadorj1
,
Sang-Ho Baek2
,
Byung-Gon Kim2
,
Ho-Seok Jeon2*
,
,
,
1Korea University of Science and Technology
2Mineral Processing Department, Korea Institute of Geoscience and Mineral Resources
* Corresponding Author
31 August 2018. pp. 285-292
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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 size had 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 as a 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 content below 12% by flotation.

Keywords
Coal cleaning
Froth flotation
Coal flotation
Synthetic fuel

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Information
  • Publisher :The Korean Society of Mineral and Energy Resources Engineers
  • Publisher(Ko) :한국자원공학회
  • Journal Title :Journal of the Korean Society of Mineral and Energy Resources Engineers
  • Journal Title(Ko) :한국자원공학회지
  • Volume : 55
  • No :4
  • Pages :285-292
  • Received Date : 2018-08-03
  • Revised Date : 2018-08-28
  • Accepted Date : 2018-08-29
  • DOI :https://doi.org/10.32390/ksmer.2018.55.4.285
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