【摘要】 分别采用二氯甲烷或苯-甲醇混合溶剂对贵州月亮田煤样进行了索氏萃取,利用GC/MS分析研究了用柱色谱分离的萃取物的族组成,探讨了萃取动力学特征,并得出了用柱色谱对萃取物的族组分进行分离效果较好;萃取过程可分为两个阶段,每个阶段均符合一级方程的结论。更多还原

【Abstract】 Coal from Yueliangtian of Guizhou Province was extracted with dichloromethane or benzene/methanol mixed solvent separately.The extracts were separated into different group compositions by column chromatography and the group compositions were analyzed with GC/MS.Extraction kinetics of the coal was studied.The experimental results show that the extraction effect of group compositions by column chromatography is better.Both solvents have better effect on arenes in coal.The extraction process can be described by two first order stages.更多还原