Activity of Different Chemistry Agents in Flotation of Difficult Slack Coal
T. A. Khamzina, S. A. Kondrat’ev
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
Keywords: flotation, slack coal, kerosene, straw oil, thermal gas oil, KETGOL, FLOTEC, collectability
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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