Abstract: Flotation of subbituminous coal has been investigated with special emphasis placed on the floatability of various petrogiaphic constituents. A nonpolar reagent such as kerosene, and the aliphatic and aromatic heteiopolar agents containing different polar groups (-OH, -COOH, -SO3H) have been used in the flotation experiments. The examined coal docs not float without flotation reagents; the use of kersene only was not enough to induce its floatability eithei. The extent to which the tested coal displayed some floatability depended on the kind of ...
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Topics: 
Mineralogy
Chemical engineering