童亭煤分次萃取及萃取物分析

In order to investigate the universalism and specialty of the solubilization behavior of small organic molecules in coal, Tong ting coal was extracted with N-hexane in batches. N-hexane soluble components was analyzed by GC and FTIR. The results show that: The relationships between the curves of accumulative extraction yield and the Cumulative time is a Logarithmic function ; Soluble small molecules will be greater dissolution in the initial and late of the Extraction, but the numbers is very different, the former mainly free state small molecules and later period mainly micropore-inbuilt state- small molecules, In the process of dissolution , weight big member The molecular weight great molecular of the micropore-inbuilt state–molecules proportion small dissolves first; In the extract gained contains the aliphatic compound richly and Aromatic compound\