35.液相酸化した褐炭のメタノール系混合溶媒中への室温溶解

抄録

A new method was developed for solubilizing a brown coal in a conventionally used solvent at room temperature. The coal pretreated with hydrogen peroxide in liquid phase at 60℃ for 2h was extracted by solvent mixtures of methanol and a non-polar solvent by the conventional method. In the solvent consisting of methanol and 1-methylnaphthalene (0.54: 0.46 volumetric ratio), surprisingly, 84wt% of the pretreated coal were extracted.