【摘要】 煤焦油是高附加值稠环芳烃的主要来源，甚至是某些芳香族化合物的唯一来源。先用纯石油醚，再用乙酸乙酯体积分数为5%和30%的石油醚/乙酸乙酯混合溶剂依次作为洗脱剂，采用柱层析法对高温煤焦油的石油醚萃取物洗脱，得到洗脱液1-3（E₁-E₃）。在E_1-6和E_1-10中富集到5种四环稠环芳烃，其中荧蒽在E_1-10中相对含量达71.02%。此外，在E_2-2中富集到6种酚类和9种氮杂环芳香族化合物，在E_3-2中富集到7种1～4环的氮杂环芳香族化合物。更多还原

【Abstract】 Coal tar is an important source for producing high value-added aromatic hydrocarbons,even the unique source for some polycyclic aromatic hydrocarbons.In this work,the petroleum ether extractable fraction from a high-temperature coal tar was sequentially eluted by column chromatography with petroleum ether,petroleum ether/ethyl acetate mixed solvent with ethyl acetate volume content of 5% and 3 0%,to afford eluates 1-3（E₁ to E₃）,respectively.As a result,5 polycyclic aromatic hydrocarbons with 4 rings were isolated in E_1-6 and E_1-10, especially for fluoranthene with relative content of 71.02% in the E_1-10. 9 nitrogen-containing aromatics and 6 phenolic compounds in E_2.2. 7 nitrogen-containing aromatics and with 1to 4 rings were also isolated in E_3-2.更多还原