Release analysis of coal fines: Evolution of the methodology and critical issues involved
IR@NML: CSIR-National Metallurgical Laboratory, Jamshedpur
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Title |
Release analysis of coal fines: Evolution
of the methodology and critical issues
involved
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Creator |
Sahu, L
Battacharya, S Dey, Shobhana |
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Subject |
Minerals and Mining
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Description |
An ideal procedure to determine the limits of flotation-based separation, as is the case with washability
analysis for density separation, does not exist. Therefore, a procedure called release analysis, considered
to be the counterpart of the washability process in density separation, was developed to evaluate the
flotation characteristics of coal fines. Since flotation is a complex process it is necessary to know the
maximum recoverable yield that could be achieved at a target ash level and what could be obtained
by release analysis. Due to a number of limitations in the initial procedures, modifications were
recommended by various researchers to generate an optimum separation curve. This paper presents
a review of, and a discussion on, the chronological evolution of release analysis methodology over
the decades. Notwithstanding the availability of a standardized release analysis procedure, such as BS
7530, the paper highlights the critical parameters involved in the procedures, such as coal type, feed
characteristics, choice of reagents and dosage, operator bias, and design features of the flotation cell.
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Date |
2019-01-25
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Type |
Article
PeerReviewed |
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Format |
application/pdf
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Identifier |
http://eprints.nmlindia.org/8169/1/Release_analysis_2019.pdf
Sahu, L and Battacharya, S and Dey, Shobhana (2019) Release analysis of coal fines: Evolution of the methodology and critical issues involved. The Journal of the Southern African Institute of Mining and Metallurgy . |
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Relation |
https://orchid.org/0000-0002- 4610-1910
http://eprints.nmlindia.org/8169/ |
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