The effect of particle size on coal maceral group’s separation using flotation

Jorjani, E., Esmaeili, S. and Tayebi Khorami, M. (2012) The effect of particle size on coal maceral group’s separation using flotation. Fuel, 114 10-15. doi:10.1016/j.fuel.2012.09.025


Author Jorjani, E.
Esmaeili, S.
Tayebi Khorami, M.
Title The effect of particle size on coal maceral group’s separation using flotation
Journal name Fuel   Check publisher's open access policy
ISSN 0016-2361
1873-7153
Publication date 2012-12-01
Sub-type Article (original research)
DOI 10.1016/j.fuel.2012.09.025
Volume 114
Start page 10
End page 15
Total pages 6
Place of publication Oxford United Kingdom
Publisher Elsevier
Language eng
Formatted abstract
In this study, maceral groups in 15 samples from the central Alborz coal mine of Iran were separated based on the different size fractions of −500 + 150, −150 + 75, −75 + 40, −40 + 25, and −25 μm. A total of 75 polished sections were prepared, and maceral groups were determined using microscopic studies. For the majority of the samples, vitrinite was concentrated in the fine size fractions, i.e., −40 + 25, and −25 μm. For the different size fractions of −500 + 150, −150 + 75, −75 + 40, −40 + 25, and −25 μm, samples with maximum and minimum amounts of vitrinite (minimum and maximum amounts of liptinite, respectively) were used to determine the effect of separation maceral groups based on particle size on coal flotation. The results showed that samples with higher amounts of liptinite (lower amounts of vitrinite) produced a concentrate with higher combustible value and recovery. Liptinite had a positive effect and vitrinite had a negative effect on combustible value and recovery of coal flotation concentrate. It can be concluded that, in coal flotation system, separation the maceral groups by particle size is as important as other established factors.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Julius Kruttschnitt Mineral Research Centre Publications
 
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Created: Fri, 02 May 2014, 02:04:24 EST by Maedeh Tayebi-khorami on behalf of Julius Kruttschnitt Mineral Research Centre