【摘要】 利用苯-甲醇混合溶剂对贵州月亮田和六枝2种煤样进行了索氏萃取,并用柱色谱对萃取物进行了族组分分离。利用GC／MS分析研究了萃取物的族组成,并对萃取动力学特征进行了探讨。实验结果表明:萃取过程阶段性明显,萃取物中烷烃和芳烃含量较高;六枝煤中含有多种含氮和含硫的杂环化合物。更多还原

【Abstract】 Two raw coals from Yueliangtian and Liuzhi coalmines in Cuizhou Province were extracted with benzene/methanol mixed solvent separately. The extracts were separated into different group composition by column chromatography and the group composition was analyzed with GC/MS. Extraction kinetics of two coals was contrasted. The test results shown that, mixed solvent has better effect on arenas. The extraction process can be described by two first order stage. Main composition in aliphatic fraction of extracts are normal alkenes and aromatic fraction mainly consist of arenas including benzene, naphthalene etc. O and S -containing compounds are observed in fractions of Liuzhi coal.更多还原