38.フィルム浮選法を用いたカラム浮選結果の解析

抄録

The distributions of surface wettabilities for 3 kinds of coals, Datong, Ensham and Illinois, were determined by a film flotation method. The results of column flotation for each coal were compared with those obtained by the film flotation method. It was found for Datong coal that carbonaceous materials recovery, ash rejection and pyritic sulfur rejection were high, since hydrophobic fractions easily floated and hydrophilic fractions are difficult to float. On the other hand, for Illinois coal carbonaceous materials recovery was very low because substantial amount of hydrophobic fraction remained in the column.