柱层析法分离高温煤焦油中的轻质组分

煤焦油中的轻质组分主要指1—4环的芳香族化合物，一般被用来分离和提纯精细化学品，实现高附加值利用。对于结构组成复杂性的煤焦油来说，溶剂萃取成为研究煤焦油组成和结构的必要而有效的手段。柱层析技术可以实现化合物的富集与分离，对于化合物的总数超过一万种，但质量分数超过1％的化合物仅有十来种的煤焦油来说，是一种较为理想的选择。建立了溶剂萃取-柱层析分离-现代仪器检测的研究方法，有助于从分子水平上揭示煤焦油化合物的赋存形态，有望成为研究煤焦油的结构和高效清洁利用的有效方法。

Separation of Light Compontents From the High-temperature Coal Tar by Column Chromatography

The light compontents of coal tar are mainly 1-4 ring aromatics, which are usually separated and purified to produce fine chemicals in order to achieve the high-value use. The solvent extraction is necessary and effective means for research on composition and structure of coal tar. What＇s more, the compounds can be enriched and separated by the traditional column chromatography. It＇s always wise to choice the column chromatography technology for coal tar with more than a million compounds. In this paper, the research method of solvent extraction-column chromatography-modem instrument analysis was established, which was helpful for understanding the coal tar structures in molecular level and a promising method to study the structures and high value-added utilization of coal tar.