Recovery of clean coal from blast furnace dusts by flotation column

  • Affiliations:

    Faculty of Mining, Hanoi University of Mining and Geology, Vietnam

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  • Received: 13th-Sept-2019
  • Revised: 22nd-Dec-2019
  • Accepted: 28th-Feb-2020
  • Online: 28th-Feb-2020
Pages: 124 - 131
Views: 2301
Downloads: 1208
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Abstract:

The paper presents the results of the study on recovery of clean coals from blast furnace dusts of the Cao Bang Iron Steel plant. The study has explored the effects of the most important operating parameters on the coal flotation performance including flotation reagent dosage, solid concentration, froth wash-water rate, flotation time and the froth thickness. The results of the study showed that using a combination of a rougher and a cleaning flotation operations at respectively collector dosage, solid concentration, flotation time, froth wash-water rate and froth thickness of 1000 g/t, 100 g/l, 10 minutes and 1.5 l/minute and 450 mm, has obtained a clean coal product with the yield, ash content and combustible matter recovery respectively of 44.90%, 19.15% and 77.63%. The clean coal has met the quality strandards requirements of the fuel for sintering.

How to Cite
Tran, D.Van, Nguyen, S.Hoang, Nhu, D.Kim Thi and Vu, C.Thi 2020. Recovery of clean coal from blast furnace dusts by flotation column (in Vietnamese). Journal of Mining and Earth Sciences. 61, 1 (Feb, 2020), 124-131. DOI:https://doi.org/10.46326/JMES.2020.61(1).14.
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