Abstract
The authors find the collecting activity criteria for slack coal flotation agents. The collectability tests used kerosene, straw oil, thermal gas oil, KETGOL and FLOTEC agents. Efficiency of these agents in slack coal flotation is determined, and the velocities of their films on water surface are found. It is found that the spreading velocities of the collecting agents are correlated with the slack coal flotation performance. The article proposes a new concept of particle–bubble attachment and the floatability criteria for slack coal flotation agents.
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Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, 2021, No. 4, pp. 121-130. https://doi.org/10.15372/FTPRPI20210412.
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Khamzina, T.A., Kondrat’ev, S.A. Activity of Different Chemistry Agents in Flotation of Difficult Slack Coal. J Min Sci 57, 645–653 (2021). https://doi.org/10.1134/S1062739121040128
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DOI: https://doi.org/10.1134/S1062739121040128