Calculation of degree of mineral matter liberation in coal from sink-float separation data

T. Oki*, H. Yotsumoto, S. Owada

*この研究の対応する著者

研究成果: Article査読

22 被引用数 (Scopus)

抄録

A method for calculating the degree of mineral matter liberation by the sink-float separation data of coal was studied. The mineral composition was estimated by norm calculation using the results of elemental analyses of sink-float separated coals. The content of the inherent ash from the lowest density fraction and the minimum limit of the locked particle rate from the highest density fraction were also estimated, and the degree of the maximum mineral matter liberation (MLmax) was calculated from these results. The MLmax can be easily measured by carrying out sink-float separation at only two density points, and by measuring the weight, ash content, and ash element of these three density fractions. Because coal properties such as particle size and mineral composition are well reflected in the value, the MLmax is useful as a substitute index of the true degree of liberation.

本文言語English
ページ(範囲)39-51
ページ数13
ジャーナルMinerals Engineering
17
1
DOI
出版ステータスPublished - 2004 1 1

ASJC Scopus subject areas

  • 制御およびシステム工学
  • 化学 (全般)
  • 地盤工学および土木地質学
  • 機械工学

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