Hard coal. Froth flotation testing - Laboratory procedure1 Scope This document sets out a laboratory procedure for the froth flotation testing of fine coal, e. g. coal of particle size less than 0,5 mm. The procedure provides a means of evaluating the general flotation characteristics of a coal under a set of specified standard conditions, and will not necessarily indicate the full flotation potential of that coal. The flotation characteristics of coals are sensitive to changes in flotation conditions.

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