物理的選別法による石炭の脱灰性に関する研究 (第2報) 石炭中の鉱物質の粒度分布および単体分離性について

  • 王 楠
    北海道工業技術研究所
  • 平島 剛
    北海道工業技術研究所 北海道大学工学部資源開発工学科
  • 恒川 昌美
    北海道工業技術研究所 北海道大学工学部資源開発工学科

書誌事項

タイトル別名
  • Study on removal characteristics of mineral matter from coal by physical separation. (2nd Report). Size Distribution and Liberation of Mineral Matter in Coal.
  • ブツリテキ センベツホウ ニ ヨル セキタン ノ ダッカイセイ ニ カンスル
  • Study on removal characteristics of mineral matter from coal by physical separation (2 nd Report)
  • 物理的選別法による石炭の脱灰性に関する研究 (第2報)

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抄録

Mineral matters in six coal samples from different localities were classified into four groups; A) mainly quartz, B) pyrite, C) mainly clay minerals and D) iron oxide. The size distribution and liberation degree of each group mineral were measured using an image analyzer equipped with a microscope. Minerals of A, B and D groups were easily liberated from coal by grinding. On the other hand, C group minerals were easily crushed but often remained and attached to the coal particles. Based on the results measured and observed, a liberation model was proposed to evaluate the liberation behaviour of the minerals. Using the model, liberation degrees were calculated and the values agreed well with the measured values.

収録刊行物

  • 資源と素材

    資源と素材 110 (6), 467-472, 1994

    一般社団法人 資源・素材学会

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