速度過程としての浮選の研究

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書誌事項

タイトル別名
  • A Study of Flotation as a Rate Process
  • ソクド カテイ ト シテ ノ フセン ノ ケンキュウ

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抄録

To consider the basic mechanisms of levitation in view of the flotation as a rate process, it is revealed that the significance of flotation, rate is not limited to the directly economical phases of flotation practice such as throughput, power consumption, etc., but the more essential feature of flotation rate is its character as a measure of floatability, which makes feasible the rational approach to the floatative separation process in practice.<BR>The authors discussed the theoretical basis of the flotation rate function, as derived from the analytical consideration of the possible mechanisms of levitation. As a result, it was suggested that the 1st order rate equation could be the only resultant form that is theoretically plausible, and also that the deviation from the ideal equation (“anomaly”) may be caused by (1) any “unevenness” of the flotation characteristics of the mineral particles in question, due, e.g, to variation of floatability, size, etc., by (2) the “inter-dependence” of levitation of each particle in the system, and/or by (3) and the mutua I interferential effect amorg the flotation mechanisms presumed.<BR>Some batch flotation tests were conducted on the quartz-amine system in order to investigate the flotation rate function in relation with the flotation variables such as activity of mineral particles, particle size, pulp density, aeration rate, and intensity of agitation. Anomaly was determined on the experimental graphs in so unessential a degree, within the range studied, that the approximate representation of the flotation rate function by the 1st order equation was accepted for a group of “similar” particles from a practical point of view. It was concluded from the experimental results that the anomaly was mostly attributed to the “unevenness”-distribution of flotation rate constant-of the mineral particles concerned.<BR>The rate of flotation was proved to change with the flotation variables studied. Among others, the combined effect of change in activity of mineral particles and particle size on the flotation rate function will deserve further inquiry.

収録刊行物

  • 日本鑛業會誌

    日本鑛業會誌 77 (881), 987-994, 1961

    一般社団法人 資源・素材学会

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